Annotation of loncom/interface/lonspreadsheet.pm, revision 1.164
1.79 matthew 1: #
1.164 ! matthew 2: # $Id: lonspreadsheet.pm,v 1.163 2003/01/15 19:34:03 matthew Exp $
1.79 matthew 3: #
4: # Copyright Michigan State University Board of Trustees
5: #
6: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
7: #
8: # LON-CAPA is free software; you can redistribute it and/or modify
9: # it under the terms of the GNU General Public License as published by
10: # the Free Software Foundation; either version 2 of the License, or
11: # (at your option) any later version.
12: #
13: # LON-CAPA is distributed in the hope that it will be useful,
14: # but WITHOUT ANY WARRANTY; without even the implied warranty of
15: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: # GNU General Public License for more details.
17: #
18: # You should have received a copy of the GNU General Public License
19: # along with LON-CAPA; if not, write to the Free Software
20: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21: #
22: # /home/httpd/html/adm/gpl.txt
23: #
24: # http://www.lon-capa.org/
25: #
1.1 www 26: # The LearningOnline Network with CAPA
27: # Spreadsheet/Grades Display Handler
28: #
1.80 matthew 29: # POD required stuff:
30:
31: =head1 NAME
32:
33: lonspreadsheet
34:
35: =head1 SYNOPSIS
36:
37: Spreadsheet interface to internal LON-CAPA data
38:
39: =head1 DESCRIPTION
40:
41: Lonspreadsheet provides course coordinators the ability to manage their
42: students grades online. The students are able to view their own grades, but
43: not the grades of their peers. The spreadsheet is highly customizable,
44: offering the ability to use Perl code to manipulate data, as well as many
45: built-in functions.
46:
47: =head2 Functions available to user of lonspreadsheet
48:
49: =over 4
50:
51: =cut
1.1 www 52:
1.164 ! matthew 53:
1.1 www 54: package Apache::lonspreadsheet;
1.36 www 55:
1.1 www 56: use strict;
1.140 matthew 57: use Apache::Constants qw(:common :http);
58: use Apache::lonnet;
59: use Apache::lonhtmlcommon;
1.152 matthew 60: use HTML::Entities();
1.136 matthew 61:
1.164 ! matthew 62: # --------------------------------------------------------- Various form fields
! 63:
! 64: sub textfield {
! 65: my ($title,$name,$value)=@_;
! 66: return "\n<p><b>$title:</b><br>".
! 67: '<input type=text name="'.$name.'" size=80 value="'.$value.'">';
! 68: }
! 69:
! 70: sub hiddenfield {
! 71: my ($name,$value)=@_;
! 72: return "\n".'<input type=hidden name="'.$name.'" value="'.$value.'">';
! 73: }
1.113 matthew 74:
1.164 ! matthew 75: sub selectbox {
! 76: my ($title,$name,$value,%options)=@_;
! 77: my $selout="\n<p><b>$title:</b><br>".'<select name="'.$name.'">';
! 78: foreach (sort keys(%options)) {
! 79: $selout.='<option value="'.$_.'"';
! 80: if ($_ eq $value) { $selout.=' selected'; }
! 81: $selout.='>'.$options{$_}.'</option>';
! 82: }
! 83: return $selout.'</select>';
! 84: }
1.44 www 85:
86: my %oldsheets;
1.46 www 87: my %loadedcaches;
1.44 www 88:
1.164 ! matthew 89: # ================================================================ Main handler
! 90: #
! 91: # Interactive call to screen
1.44 www 92: #
1.39 www 93: #
1.164 ! matthew 94: sub handler {
! 95: my $r=shift;
1.39 www 96:
1.164 ! matthew 97: my ($sheettype) = ($r->uri=~/\/(\w+)$/);
1.39 www 98:
1.164 ! matthew 99: if (! exists($ENV{'form.Status'})) {
! 100: $ENV{'form.Status'} = 'Active';
! 101: }
! 102: if ( ! exists($ENV{'form.output'}) ||
! 103: ($sheettype ne 'classcalc' &&
! 104: lc($ENV{'form.output'}) eq 'recursive excel')) {
! 105: $ENV{'form.output'} = 'HTML';
! 106: }
! 107: #
! 108: # Overload checking
! 109: #
! 110: # Check this server
! 111: my $loaderror=&Apache::lonnet::overloaderror($r);
! 112: if ($loaderror) { return $loaderror; }
! 113: # Check the course homeserver
! 114: $loaderror= &Apache::lonnet::overloaderror($r,
! 115: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
! 116: if ($loaderror) { return $loaderror; }
! 117: #
! 118: # HTML Header
! 119: #
! 120: if ($r->header_only) {
! 121: $r->content_type('text/html');
! 122: $r->send_http_header;
! 123: return OK;
! 124: }
! 125: #
! 126: # Roles Checking
! 127: #
! 128: # Needs to be in a course
! 129: if (! $ENV{'request.course.fn'}) {
! 130: # Not in a course, or not allowed to modify parms
! 131: $ENV{'user.error.msg'}=
! 132: $r->uri.":opa:0:0:Cannot modify spreadsheet";
! 133: return HTTP_NOT_ACCEPTABLE;
! 134: }
! 135: #
! 136: # Get query string for limited number of parameters
! 137: #
! 138: &Apache::loncommon::get_unprocessed_cgi
! 139: ($ENV{'QUERY_STRING'},['uname','udom','usymb','ufn','mapid','resid']);
! 140: #
! 141: # Deal with restricted student permissions
! 142: #
! 143: if ($ENV{'request.role'} =~ /^st\./) {
! 144: delete $ENV{'form.unewfield'} if (exists($ENV{'form.unewfield'}));
! 145: delete $ENV{'form.unewformula'} if (exists($ENV{'form.unewformula'}));
! 146: }
! 147: #
! 148: # Look for special assessment spreadsheets - '_feedback', etc.
! 149: #
! 150: if (($ENV{'form.usymb'}=~/^\_(\w+)/) && (!$ENV{'form.ufn'} ||
! 151: $ENV{'form.ufn'} eq '' ||
! 152: $ENV{'form.ufn'} eq 'default')) {
! 153: $ENV{'form.ufn'}='default_'.$1;
! 154: }
! 155: if (!$ENV{'form.ufn'} || $ENV{'form.ufn'} eq 'default') {
! 156: $ENV{'form.ufn'}='course_default_'.$sheettype;
! 157: }
! 158: #
! 159: # Interactive loading of specific sheet?
! 160: #
! 161: if (($ENV{'form.load'}) && ($ENV{'form.loadthissheet'} ne 'Default')) {
! 162: $ENV{'form.ufn'}=$ENV{'form.loadthissheet'};
! 163: }
! 164: #
! 165: # Determine the user name and domain for the sheet.
! 166: my $aname;
! 167: my $adom;
! 168: unless ($ENV{'form.uname'}) {
! 169: $aname=$ENV{'user.name'};
! 170: $adom=$ENV{'user.domain'};
! 171: } else {
! 172: $aname=$ENV{'form.uname'};
! 173: $adom=$ENV{'form.udom'};
! 174: }
! 175: #
! 176: # Open page, try to prevent browser cache.
! 177: #
! 178: $r->content_type('text/html');
! 179: $r->header_out('Cache-control','no-cache');
! 180: $r->header_out('Pragma','no-cache');
! 181: $r->send_http_header;
! 182: #
! 183: # Header....
! 184: #
! 185: $r->print('<html><head><title>LON-CAPA Spreadsheet</title>');
! 186: my $nothing = "''";
! 187: if ($ENV{'browser.type'} eq 'explorer') {
! 188: $nothing = "'javascript:void(0);'";
! 189: }
1.33 www 190:
1.164 ! matthew 191: if ($ENV{'request.role'} !~ /^st\./) {
! 192: $r->print(<<ENDSCRIPT);
! 193: <script language="JavaScript">
1.27 www 194:
1.164 ! matthew 195: var editwin;
1.11 www 196:
1.164 ! matthew 197: function celledit(cellname,cellformula) {
! 198: var edit_text = '';
! 199: // cellformula may contain less-than and greater-than symbols, so
! 200: // we need to escape them?
! 201: edit_text +='<html><head><title>Cell Edit Window</title></head><body>';
! 202: edit_text += '<form name="editwinform">';
! 203: edit_text += '<center><h3>Cell '+cellname+'</h3>';
! 204: edit_text += '<textarea name="newformula" cols="40" rows="6"';
! 205: edit_text += ' wrap="off" >'+cellformula+'</textarea>';
! 206: edit_text += '</br>';
! 207: edit_text += '<input type="button" name="accept" value="Accept"';
! 208: edit_text += ' onClick=\\\'javascript:';
! 209: edit_text += 'opener.document.sheet.unewfield.value=';
! 210: edit_text += '"'+cellname+'";';
! 211: edit_text += 'opener.document.sheet.unewformula.value=';
! 212: edit_text += 'document.editwinform.newformula.value;';
! 213: edit_text += 'opener.document.sheet.submit();';
! 214: edit_text += 'self.close()\\\' />';
! 215: edit_text += ' ';
! 216: edit_text += '<input type="button" name="abort" ';
! 217: edit_text += 'value="Discard Changes"';
! 218: edit_text += ' onClick="javascript:self.close()" />';
! 219: edit_text += '</center></body></html>';
1.95 www 220:
1.164 ! matthew 221: if (editwin != null && !(editwin.closed) ) {
! 222: editwin.close();
! 223: }
1.95 www 224:
1.164 ! matthew 225: editwin = window.open($nothing,'CellEditWin','height=200,width=350,scrollbars=no,resizeable=yes,alwaysRaised=yes,dependent=yes',true);
! 226: editwin.document.write(edit_text);
! 227: }
1.28 www 228:
1.164 ! matthew 229: function changesheet(cn) {
! 230: document.sheet.unewfield.value=cn;
! 231: document.sheet.unewformula.value='changesheet';
! 232: document.sheet.submit();
! 233: }
1.28 www 234:
1.164 ! matthew 235: function insertrow(cn) {
! 236: document.sheet.unewfield.value='insertrow';
! 237: document.sheet.unewformula.value=cn;
! 238: document.sheet.submit();
! 239: }
1.4 www 240:
1.164 ! matthew 241: </script>
! 242: ENDSCRIPT
! 243: }
! 244: $r->print('</head>'.&Apache::loncommon::bodytag('Grades Spreadsheet').
! 245: '<form action="'.$r->uri.'" name="sheet" method="post">');
! 246: $r->print(&hiddenfield('uname',$ENV{'form.uname'}).
! 247: &hiddenfield('udom',$ENV{'form.udom'}).
! 248: &hiddenfield('usymb',$ENV{'form.usymb'}).
! 249: &hiddenfield('unewfield','').
! 250: &hiddenfield('unewformula',''));
! 251: $r->rflush();
! 252: #
! 253: # Full recalc?
! 254: #
! 255: # Read new sheet or modified worksheet
! 256: my $sheet=Apache::lonspreadsheet::Spreadsheet->new($aname,$adom,$sheettype,$ENV{'form.usymb'});
! 257: if ($ENV{'form.forcerecalc'}) {
! 258: $r->print('<h4>Completely Recalculating Sheet ...</h4>');
! 259: $sheet->complete_recalc();
! 260: }
! 261: #
! 262: # Global directory configs
1.125 matthew 263: #
1.164 ! matthew 264: $sheet->includedir($r->dir_config('lonIncludes'));
! 265: $sheet->tmpdir($r->dir_config('lonDaemons').'/tmp/');
1.125 matthew 266: #
1.164 ! matthew 267: # Check user permissions
! 268: if (($sheet->{'type'} eq 'classcalc' ) ||
! 269: ($sheet->{'uname'} ne $ENV{'user.name'} ) ||
! 270: ($sheet->{'udom'} ne $ENV{'user.domain'})) {
! 271: unless (&Apache::lonnet::allowed('vgr',$sheet->{'cid'})) {
! 272: $r->print('<h1>Access Permission Denied</h1>'.
! 273: '</form></body></html>');
! 274: return OK;
! 275: }
! 276: }
! 277: # Print out user information
! 278: $r->print('<h2>'.$sheet->{'coursedesc'}.'</h2>');
! 279: if ($sheet->{'type'} ne 'classcalc') {
! 280: $r->print('<h2>'.$sheet->gettitle().'</h2><p>');
! 281: }
! 282: if ($sheet->{'type'} eq 'assesscalc') {
! 283: $r->print('<b>User:</b> '.$sheet->{'uname'}.
! 284: '<br /><b>Domain:</b> '.$sheet->{'udom'}.'<br />');
! 285: }
! 286: if ($sheet->{'type'} eq 'studentcalc' ||
! 287: $sheet->{'type'} eq 'assesscalc') {
! 288: $r->print('<b>Section/Group:</b>'.$sheet->{'csec'}.'</p>');
! 289: }
! 290: #
! 291: # If a new formula had been entered, go from work copy
! 292: if ($ENV{'form.unewfield'}) {
! 293: $r->print('<h2>Modified Workcopy</h2>');
! 294: #$ENV{'form.unewformula'}=~s/\'/\"/g;
! 295: $r->print('<p>Cell '.$ENV{'form.unewfield'}.' = <pre>');
! 296: $r->print(&HTML::Entities::encode($ENV{'form.unewformula'}).
! 297: '</pre></p>');
! 298: $sheet->{'filename'} = $ENV{'form.ufn'};
! 299: $sheet->tmpread($ENV{'form.unewfield'},$ENV{'form.unewformula'});
! 300: } elsif ($ENV{'form.saveas'}) {
! 301: $sheet->{'filename'} = $ENV{'form.ufn'};
! 302: $sheet->tmpread();
! 303: } else {
! 304: $sheet->readsheet($ENV{'form.ufn'});
! 305: }
! 306: # Additional options
! 307: if ($sheet->{'type'} eq 'assesscalc') {
! 308: $r->print('<p><font size=+2>'.
! 309: '<a href="/adm/studentcalc?'.
! 310: 'uname='.$sheet->{'uname'}.
! 311: '&udom='.$sheet->{'udom'}.'">'.
! 312: 'Level up: Student Sheet</a></font></p>');
! 313: }
! 314: if (($sheet->{'type'} eq 'studentcalc') &&
! 315: (&Apache::lonnet::allowed('vgr',$sheet->{'cid'}))) {
! 316: $r->print ('<p><font size=+2><a href="/adm/classcalc">'.
! 317: 'Level up: Course Sheet</a></font></p>');
! 318: }
! 319: # Recalc button
! 320: $r->print('<br />'.
! 321: '<input type="submit" name="forcerecalc" '.
! 322: 'value="Completely Recalculate Sheet"></p>');
! 323: # Save dialog
! 324: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
! 325: my $fname=$ENV{'form.ufn'};
! 326: $fname=~s/\_[^\_]+$//;
! 327: if ($fname eq 'default') { $fname='course_default'; }
! 328: $r->print('<input type=submit name=saveas value="Save as ...">'.
! 329: '<input type=text size=20 name=newfn value="'.$fname.'">'.
! 330: 'make default: <input type=checkbox name="makedefufn"><p>');
! 331: }
! 332: $r->print(&hiddenfield('ufn',$sheet->{'filename'}));
! 333: # Load dialog
! 334: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
! 335: $r->print('<p><input type=submit name=load value="Load ...">'.
! 336: '<select name="loadthissheet">'.
! 337: '<option name="default">Default</option>');
! 338: foreach ($sheet->othersheets()) {
! 339: $r->print('<option name="'.$_.'"');
! 340: if ($ENV{'form.ufn'} eq $_) {
! 341: $r->print(' selected');
! 342: }
! 343: $r->print('>'.$_.'</option>');
! 344: }
! 345: $r->print('</select><p>');
! 346: if ($sheet->{'type'} eq 'studentcalc') {
! 347: $sheet->setothersheets($sheet->othersheets('assesscalc'));
! 348: }
! 349: }
! 350: #
! 351: # Set up caching mechanisms
! 352: #
! 353: &Apache::lonspreadsheet::Spreadsheet::load_spreadsheet_expirationdates();
! 354: # Clear out old caches if we have not seen this class before.
! 355: if (exists($oldsheets{'course'}) &&
! 356: $oldsheets{'course'} ne $sheet->{'cid'}) {
! 357: undef %oldsheets;
! 358: undef %loadedcaches;
! 359: }
! 360: $oldsheets{'course'} = $sheet->{'cid'};
! 361: #
! 362: if ($sheet->{'type'} eq 'classcalc') {
! 363: $r->print("Loading previously calculated student sheets ...\n");
! 364: $r->rflush();
! 365: &Apache::lonspreadsheet::Spreadsheet::cachedcsheets();
! 366: } elsif ($sheet->{'type'} eq 'studentcalc') {
! 367: $r->print("Loading previously calculated assessment sheets ...\n");
! 368: $r->rflush();
! 369: $sheet->cachedssheets();
! 370: }
! 371: # Update sheet, load rows
! 372: $r->print("Loaded sheet(s), updating rows ...<br>\n");
! 373: $r->rflush();
! 374: #
! 375: $sheet->updatesheet();
! 376: $r->print("Updated rows, loading row data ...\n");
! 377: $r->rflush();
! 378: #
! 379: $sheet->loadrows($r);
! 380: $r->print("Loaded row data, calculating sheet ...<br>\n");
! 381: $r->rflush();
! 382: #
! 383: my $calcoutput=$sheet->calcsheet();
! 384: $r->print('<h3><font color=red>'.$calcoutput.'</h3></font>');
! 385: # See if something to save
! 386: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
! 387: my $fname='';
! 388: if ($ENV{'form.saveas'} && ($fname=$ENV{'form.newfn'})) {
! 389: $fname=~s/\W/\_/g;
! 390: if ($fname eq 'default') { $fname='course_default'; }
! 391: $fname.='_'.$sheet->{'type'};
! 392: $sheet->{'filename'} = $fname;
! 393: $ENV{'form.ufn'}=$fname;
! 394: $r->print('<p>Saving spreadsheet: '.
! 395: $sheet->writesheet($ENV{'form.makedefufn'}).
! 396: '<p>');
! 397: }
! 398: }
! 399: #
! 400: # Write the modified worksheet
! 401: $r->print('<b>Current sheet:</b> '.$sheet->{'filename'}.'</p>');
! 402: $sheet->tmpwrite();
! 403: if ($sheet->{'type'} eq 'assesscalc') {
! 404: $r->print('<p>Show rows with empty A column: ');
! 405: } else {
! 406: $r->print('<p>Show empty rows: ');
! 407: }
! 408: #
! 409: $r->print(&hiddenfield('userselhidden','true').
! 410: '<input type="checkbox" name="showall" onClick="submit()"');
! 411: #
! 412: if ($ENV{'form.showall'}) {
! 413: $r->print(' checked');
! 414: } else {
! 415: unless ($ENV{'form.userselhidden'}) {
! 416: unless
! 417: ($ENV{'course.'.$sheet->{'cid'}.'.hideemptyrows'} eq 'yes') {
! 418: $r->print(' checked');
! 419: $ENV{'form.showall'}=1;
! 420: }
! 421: }
! 422: }
! 423: $r->print('>');
! 424: #
! 425: # output format select box
! 426: $r->print(' Output as <select name="output" size="1" onChange="submit()">'.
! 427: "\n");
! 428: foreach my $mode (qw/HTML CSV Excel/) {
! 429: $r->print('<option value="'.$mode.'"');
! 430: if ($ENV{'form.output'} eq $mode) {
! 431: $r->print(' selected ');
! 432: }
! 433: $r->print('>'.$mode.'</option>'."\n");
! 434: }
! 435: #
! 436: # Mulit-sheet excel takes too long and does not work at all for large
! 437: # classes. Future inclusion of this option may be possible with the
! 438: # Spreadsheet::WriteExcel::Big and speed improvements.
! 439: #
! 440: # if ($sheet->{'type'} eq 'classcalc') {
! 441: # $r->print('<option value="recursive excel"');
! 442: # if ($ENV{'form.output'} eq 'recursive excel') {
! 443: # $r->print(' selected ');
! 444: # }
! 445: # $r->print(">Multi-Sheet Excel</option>\n");
! 446: # }
! 447: $r->print("</select>\n");
! 448: #
! 449: if ($sheet->{'type'} eq 'classcalc') {
! 450: $r->print(' Student Status: '.
! 451: &Apache::lonhtmlcommon::StatusOptions
! 452: ($ENV{'form.Status'},'sheet'));
! 453: }
! 454: #
! 455: # Buttons to insert rows
! 456: # $r->print(<<ENDINSERTBUTTONS);
! 457: #<br>
! 458: #<input type='button' onClick='insertrow("top");'
! 459: #value='Insert Row Top'>
! 460: #<input type='button' onClick='insertrow("bottom");'
! 461: #value='Insert Row Bottom'><br>
! 462: #ENDINSERTBUTTONS
! 463: # Print out sheet
! 464: $sheet->outsheet($r);
! 465: $r->print('</form></body></html>');
! 466: # Done
! 467: return OK;
! 468: }
! 469:
! 470: 1;
! 471:
! 472: #############################################################
! 473: #############################################################
! 474: #############################################################
! 475:
! 476: package Apache::lonspreadsheet::Spreadsheet;
! 477:
! 478: use strict;
! 479: use Apache::Constants qw(:common :http);
! 480: use Apache::lonnet;
! 481: use Apache::loncoursedata;
! 482: use Apache::File();
! 483: use Safe;
! 484: use Safe::Hole;
! 485: use Opcode;
! 486: use GDBM_File;
! 487: use HTML::Entities();
! 488: use HTML::TokeParser;
! 489: use Spreadsheet::WriteExcel;
! 490: #
! 491: # These global hashes are dependent on user, course and resource,
! 492: # and need to be initialized every time when a sheet is calculated
! 493: #
! 494: my %courseopt;
! 495: my %useropt;
! 496: my %parmhash;
! 497:
! 498: #
! 499: # Caches for coursewide information
! 500: #
! 501: my %Section;
! 502:
! 503: #
! 504: # Caches for previously calculated spreadsheets
! 505: #
! 506: my %expiredates;
! 507:
! 508: #
! 509: # Cache for stores of an individual user
! 510: #
! 511: my $cachedassess;
! 512: my %cachedstores;
! 513:
! 514: #
! 515: # Some hashes for stats on timing and performance
! 516: #
! 517: my %starttimes;
! 518: my %usedtimes;
! 519: my %numbertimes;
! 520:
! 521: #
! 522: # Directories
! 523: #
! 524: my $includedir;
! 525: my $tmpdir;
! 526:
! 527: sub includedir {
! 528: my $self = shift;
! 529: $includedir = shift;
! 530: }
! 531:
! 532: sub tmpdir {
! 533: my $self = shift;
! 534: $tmpdir = shift;
! 535: }
! 536:
! 537: my %spreadsheets;
! 538: my %loadedcaches;
! 539: my %courserdatas;
! 540: my %userrdatas;
! 541: my %defaultsheets;
! 542: my %rowlabel_cache;
! 543: my %oldsheets;
! 544:
! 545: sub complete_recalc {
! 546: my $self = shift;
! 547: undef %spreadsheets;
! 548: undef %courserdatas;
! 549: undef %userrdatas;
! 550: undef %defaultsheets;
! 551: undef %rowlabel_cache;
! 552: }
! 553:
! 554: sub get_sheet {
! 555: my $self = shift;
! 556: my $sheet_id = shift;
! 557: my $formulas;
! 558: # if we already have the file loaded and parsed, return the formulas
! 559: if (exists($self->{'sheets'}->{$sheet_id})) {
! 560: $formulas = $self->{'sheets'}->{$sheet_id};
! 561: $self->debug('retrieved '.$sheet_id);
! 562: } else {
! 563: # load the file
! 564: # set $error and return undef if there is an error loading
! 565: # parse it
! 566: # set $error and return undef if there is an error parsing
! 567: }
! 568: return $formulas;
! 569: }
! 570:
! 571: #
! 572: # Load previously cached student spreadsheets for this course
! 573: #
! 574: sub load_spreadsheet_expirationdates {
! 575: undef %expiredates;
! 576: my $cid=$ENV{'request.course.id'};
! 577: my @tmp = &Apache::lonnet::dump('nohist_expirationdates',
! 578: $ENV{'course.'.$cid.'.domain'},
! 579: $ENV{'course.'.$cid.'.num'});
! 580: if (lc($tmp[0]) !~ /^error/){
! 581: %expiredates = @tmp;
! 582: }
! 583: }
! 584:
! 585: # ===================================================== Calculated sheets cache
! 586: #
! 587: # Load previously cached student spreadsheets for this course
! 588: #
! 589: sub cachedcsheets {
! 590: my $cid=$ENV{'request.course.id'};
! 591: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets',
! 592: $ENV{'course.'.$cid.'.domain'},
! 593: $ENV{'course.'.$cid.'.num'});
! 594: if ($tmp[0] !~ /^error/) {
! 595: my %StupidTempHash = @tmp;
! 596: while (my ($key,$value) = each %StupidTempHash) {
! 597: $Apache::lonspreadsheet::oldsheets{$key} = $value;
! 598: }
! 599: }
! 600: }
! 601:
! 602: #
! 603: # Load previously cached assessment spreadsheets for this student
! 604: #
! 605: sub cachedssheets {
! 606: my $self = shift;
! 607: my ($uname,$udom) = @_;
! 608: $uname = $uname || $self->{'uname'};
! 609: $udom = $udom || $self->{'udom'};
! 610: if (! $Apache::lonspreadsheet::loadedcaches{$uname.'_'.$udom}) {
! 611: my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets_'.
! 612: $ENV{'request.course.id'},
! 613: $self->{'udom'},
! 614: $self->{'uname'});
! 615: if ($tmp[0] !~ /^error/) {
! 616: my %TempHash = @tmp;
! 617: my $count = 0;
! 618: while (my ($key,$value) = each %TempHash) {
! 619: $Apache::lonspreadsheet::oldsheets{$key} = $value;
! 620: $count++;
! 621: }
! 622: $Apache::lonspreadsheet::loadedcaches{$self->{'uname'}.'_'.$self->{'udom'}}=1;
! 623: }
! 624: }
! 625: }
! 626:
! 627: # ======================================================= Forced recalculation?
! 628: sub checkthis {
! 629: my ($keyname,$time)=@_;
! 630: if (! exists($expiredates{$keyname})) {
! 631: return 0;
! 632: } else {
! 633: return ($time<$expiredates{$keyname});
! 634: }
! 635: }
! 636:
! 637: sub forcedrecalc {
! 638: my ($uname,$udom,$stype,$usymb)=@_;
! 639: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
! 640: my $time=$Apache::lonspreadsheet::oldsheets{$key.'.time'};
! 641: if ($ENV{'form.forcerecalc'}) { return 1; }
! 642: unless ($time) { return 1; }
! 643: if ($stype eq 'assesscalc') {
! 644: my $map=(split(/___/,$usymb))[0];
! 645: if (&checkthis('::assesscalc:',$time) ||
! 646: &checkthis('::assesscalc:'.$map,$time) ||
! 647: &checkthis('::assesscalc:'.$usymb,$time) ||
! 648: &checkthis($uname.':'.$udom.':assesscalc:',$time) ||
! 649: &checkthis($uname.':'.$udom.':assesscalc:'.$map,$time) ||
! 650: &checkthis($uname.':'.$udom.':assesscalc:'.$usymb,$time)) {
! 651: return 1;
! 652: }
! 653: } else {
! 654: if (&checkthis('::studentcalc:',$time) ||
! 655: &checkthis($uname.':'.$udom.':studentcalc:',$time)) {
! 656: return 1;
! 657: }
! 658: }
! 659: return 0;
! 660: }
! 661:
! 662:
! 663: ##################################################
! 664: ##################################################
! 665:
! 666: =pod
! 667:
! 668: =item &parmval()
! 669:
! 670: Determine the value of a parameter.
! 671:
! 672: Inputs: $what, the parameter needed, $symb, $uname, $udom, $csec
! 673:
! 674: Returns: The value of a parameter, or '' if none.
! 675:
! 676: This function cascades through the possible levels searching for a value for
! 677: a parameter. The levels are checked in the following order:
! 678: user, course (at section level and course level), map, and lonnet::metadata.
! 679: This function uses %parmhash, which must be tied prior to calling it.
! 680: This function also requires %courseopt and %useropt to be initialized for
! 681: this user and course.
! 682:
! 683: =cut
! 684:
! 685: ##################################################
! 686: ##################################################
! 687: sub parmval {
! 688: my ($what,$symb,$uname,$udom,$csec)=@_;
! 689: return '' if (!$symb);
! 690: #
! 691: my $cid = $ENV{'request.course.id'};
! 692: my $result='';
! 693: #
! 694: my ($mapname,$id,$fn)=split(/\_\_\_/,$symb);
! 695: # Cascading lookup scheme
! 696: my $rwhat=$what;
! 697: $what =~ s/^parameter\_//;
! 698: $what =~ s/\_([^\_]+)$/\.$1/;
! 699: #
! 700: my $symbparm = $symb.'.'.$what;
! 701: my $mapparm = $mapname.'___(all).'.$what;
! 702: my $usercourseprefix = $uname.'_'.$udom.'_'.$cid;
! 703: #
! 704: my $seclevel = $usercourseprefix.'.['.$csec.'].'.$what;
! 705: my $seclevelr = $usercourseprefix.'.['.$csec.'].'.$symbparm;
! 706: my $seclevelm = $usercourseprefix.'.['.$csec.'].'.$mapparm;
! 707: #
! 708: my $courselevel = $usercourseprefix.'.'.$what;
! 709: my $courselevelr = $usercourseprefix.'.'.$symbparm;
! 710: my $courselevelm = $usercourseprefix.'.'.$mapparm;
! 711: # fourth, check user
! 712: if (defined($uname)) {
! 713: return $useropt{$courselevelr} if (defined($useropt{$courselevelr}));
! 714: return $useropt{$courselevelm} if (defined($useropt{$courselevelm}));
! 715: return $useropt{$courselevel} if (defined($useropt{$courselevel}));
! 716: }
! 717: # third, check course
! 718: if (defined($csec)) {
! 719: return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
! 720: return $courseopt{$seclevelm} if (defined($courseopt{$seclevelm}));
! 721: return $courseopt{$seclevel} if (defined($courseopt{$seclevel}));
! 722: }
! 723: #
! 724: return $courseopt{$courselevelr} if (defined($courseopt{$courselevelr}));
! 725: return $courseopt{$courselevelm} if (defined($courseopt{$courselevelm}));
! 726: return $courseopt{$courselevel} if (defined($courseopt{$courselevel}));
! 727: # second, check map parms
! 728: my $thisparm = $parmhash{$symbparm};
! 729: return $thisparm if (defined($thisparm));
! 730: # first, check default
! 731: return &Apache::lonnet::metadata($fn,$rwhat.'.default');
! 732: }
! 733:
! 734: #
! 735: # new: Make a new spreadsheet
! 736: #
! 737: sub new {
! 738: my $this = shift;
! 739: my $class = ref($this) || $this;
! 740: #
! 741: my ($uname,$udom,$stype,$usymb)=@_;
! 742: #
! 743: my $self = {
! 744: uname => $uname,
! 745: udom => $udom,
! 746: type => $stype,
! 747: usymb => $usymb,
! 748: errorlog => '',
! 749: maxrow => '',
! 750: mapid => $ENV{'form.mapid'},
! 751: resid => $ENV{'form.resid'},
! 752: cid => $ENV{'request.course.id'},
! 753: csec => $Section{$uname.':'.$udom},
! 754: cnum => $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
! 755: cdom => $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
! 756: chome => $ENV{'course.'.$ENV{'request.course.id'}.'.home'},
! 757: coursefilename => $ENV{'request.course.fn'},
! 758: coursedesc => $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
! 759: A_column => [],
! 760: template_cells => [],
! 761: };
! 762: $self->{'uhome'} = &Apache::lonnet::homeserver($uname,$udom);
! 763: #
! 764: #
! 765: $self->{'formulas'} = {};
! 766: $self->{'constants'} = {};
! 767: $self->{'othersheets'} = [];
! 768: $self->{'rowlabel'} = {};
! 769: #
! 770: #
! 771: $self->{'safe'} = &initsheet($self->{'type'});
! 772: $self->{'root'} = $self->{'safe'}->root();
! 773: #
! 774: # Place some of the %$self items into the safe space except the safe space
! 775: # itself
! 776: my $initstring = '';
! 777: foreach (qw/uname udom type usymb cid csec coursefilename
! 778: cnum cdom chome uhome/) {
! 779: $initstring.= qq{\$$_="$self->{$_}";};
! 780: }
! 781: $self->{'safe'}->reval($initstring);
! 782: bless($self,$class);
! 783: return $self;
! 784: }
! 785:
! 786: ##
! 787: ## mask - used to reside in the safe space.
! 788: ##
! 789: {
! 790:
! 791: my %memoizer;
! 792:
! 793: sub mask {
! 794: my ($lower,$upper)=@_;
! 795: my $key = $lower.'_'.$upper;
! 796: if (exists($memoizer{$key})) {
! 797: return $memoizer{$key};
! 798: }
! 799: $upper = $lower if (! defined($upper));
! 800: #
! 801: my ($la,$ld) = ($lower=~/([A-Za-z]|\*)(\d+|\*)/);
! 802: my ($ua,$ud) = ($upper=~/([A-Za-z]|\*)(\d+|\*)/);
! 803: #
! 804: my $alpha='';
! 805: my $num='';
1.125 matthew 806: #
1.1 www 807: if (($la eq '*') || ($ua eq '*')) {
1.132 matthew 808: $alpha='[A-Za-z]';
1.1 www 809: } else {
1.7 www 810: if (($la=~/[A-Z]/) && ($ua=~/[A-Z]/) ||
811: ($la=~/[a-z]/) && ($ua=~/[a-z]/)) {
812: $alpha='['.$la.'-'.$ua.']';
813: } else {
814: $alpha='['.$la.'-Za-'.$ua.']';
815: }
1.1 www 816: }
817: if (($ld eq '*') || ($ud eq '*')) {
818: $num='\d+';
819: } else {
820: if (length($ld)!=length($ud)) {
821: $num.='(';
1.78 matthew 822: foreach ($ld=~m/\d/g) {
1.1 www 823: $num.='['.$_.'-9]';
1.78 matthew 824: }
1.1 www 825: if (length($ud)-length($ld)>1) {
826: $num.='|\d{'.(length($ld)+1).','.(length($ud)-1).'}';
827: }
828: $num.='|';
1.78 matthew 829: foreach ($ud=~m/\d/g) {
1.1 www 830: $num.='[0-'.$_.']';
1.78 matthew 831: }
1.1 www 832: $num.=')';
833: } else {
834: my @lda=($ld=~m/\d/g);
835: my @uda=($ud=~m/\d/g);
1.118 matthew 836: my $i;
837: my $j=0;
838: my $notdone=1;
1.7 www 839: for ($i=0;($i<=$#lda)&&($notdone);$i++) {
1.1 www 840: if ($lda[$i]==$uda[$i]) {
841: $num.=$lda[$i];
842: $j=$i;
1.7 www 843: } else {
844: $notdone=0;
1.1 www 845: }
846: }
847: if ($j<$#lda-1) {
848: $num.='('.$lda[$j+1];
849: for ($i=$j+2;$i<=$#lda;$i++) {
850: $num.='['.$lda[$i].'-9]';
851: }
852: if ($uda[$j+1]-$lda[$j+1]>1) {
853: $num.='|['.($lda[$j+1]+1).'-'.($uda[$j+1]-1).']\d{'.
854: ($#lda-$j-1).'}';
855: }
856: $num.='|'.$uda[$j+1];
857: for ($i=$j+2;$i<=$#uda;$i++) {
858: $num.='[0-'.$uda[$i].']';
859: }
860: $num.=')';
861: } else {
1.125 matthew 862: if ($lda[-1]!=$uda[-1]) {
863: $num.='['.$lda[-1].'-'.$uda[-1].']';
1.7 www 864: }
1.1 www 865: }
866: }
867: }
1.164 ! matthew 868: my $expression ='^'.$alpha.$num."\$";
! 869: $memoizer{$key} = $expression;
! 870: return $expression;
1.80 matthew 871: }
872:
1.164 ! matthew 873: }
1.118 matthew 874:
1.164 ! matthew 875: sub add_hash_to_safe {
! 876: my $self = shift;
! 877: my $code = <<'END';
1.80 matthew 878: #-------------------------------------------------------
879:
880: =item UWCALC(hashname,modules,units,date)
881:
882: returns the proportion of the module
883: weights not previously completed by the student.
884:
885: =over 4
886:
887: =item hashname
888:
889: name of the hash the module dates have been inserted into
890:
891: =item modules
892:
893: reference to a cell which contains a comma deliminated list of modules
894: covered by the assignment.
895:
896: =item units
897:
898: reference to a cell which contains a comma deliminated list of module
899: weights with respect to the assignment
900:
901: =item date
902:
903: reference to a cell which contains the date the assignment was completed.
904:
905: =back
906:
907: =cut
908:
909: #-------------------------------------------------------
910: sub UWCALC {
911: my ($hashname,$modules,$units,$date) = @_;
912: my @Modules = split(/,/,$modules);
913: my @Units = split(/,/,$units);
914: my $total_weight;
915: foreach (@Units) {
916: $total_weight += $_;
917: }
918: my $usum=0;
919: for (my $i=0; $i<=$#Modules; $i++) {
920: if (&HASH($hashname,$Modules[$i]) eq $date) {
921: $usum += $Units[$i];
922: }
923: }
924: return $usum/$total_weight;
925: }
926:
927: #-------------------------------------------------------
928:
929: =item CDLSUM(list)
930:
931: returns the sum of the elements in a cell which contains
932: a Comma Deliminate List of numerical values.
933: 'list' is a reference to a cell which contains a comma deliminated list.
934:
935: =cut
936:
937: #-------------------------------------------------------
938: sub CDLSUM {
939: my ($list)=@_;
940: my $sum;
941: foreach (split/,/,$list) {
942: $sum += $_;
943: }
944: return $sum;
945: }
946:
947: #-------------------------------------------------------
948:
949: =item CDLITEM(list,index)
950:
951: returns the item at 'index' in a Comma Deliminated List.
952:
953: =over 4
954:
955: =item list
956:
957: reference to a cell which contains a comma deliminated list.
958:
959: =item index
960:
961: the Perl index of the item requested (first element in list has
962: an index of 0)
963:
964: =back
965:
966: =cut
967:
968: #-------------------------------------------------------
969: sub CDLITEM {
970: my ($list,$index)=@_;
971: my @Temp = split/,/,$list;
972: return $Temp[$index];
973: }
974:
975: #-------------------------------------------------------
976:
977: =item CDLHASH(name,key,value)
978:
979: loads a comma deliminated list of keys into
980: the hash 'name', all with a value of 'value'.
981:
982: =over 4
983:
984: =item name
985:
986: name of the hash.
987:
988: =item key
989:
990: (a pointer to) a comma deliminated list of keys.
991:
992: =item value
993:
994: a single value to be entered for each key.
995:
996: =back
997:
998: =cut
999:
1000: #-------------------------------------------------------
1001: sub CDLHASH {
1002: my ($name,$key,$value)=@_;
1003: my @Keys;
1004: my @Values;
1005: # Check to see if we have multiple $key values
1006: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
1007: my $keymask = &mask($key);
1008: # Assume the keys are addresses
1.104 matthew 1009: my @Temp = grep /$keymask/,keys(%sheet_values);
1010: @Keys = $sheet_values{@Temp};
1.80 matthew 1011: } else {
1012: $Keys[0]= $key;
1013: }
1014: my @Temp;
1015: foreach $key (@Keys) {
1016: @Temp = (@Temp, split/,/,$key);
1017: }
1018: @Keys = @Temp;
1019: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
1020: my $valmask = &mask($value);
1.104 matthew 1021: my @Temp = grep /$valmask/,keys(%sheet_values);
1022: @Values =$sheet_values{@Temp};
1.80 matthew 1023: } else {
1024: $Values[0]= $value;
1025: }
1026: $value = $Values[0];
1027: # Add values to hash
1028: for (my $i = 0; $i<=$#Keys; $i++) {
1029: my $key = $Keys[$i];
1030: if (! exists ($hashes{$name}->{$key})) {
1031: $hashes{$name}->{$key}->[0]=$value;
1032: } else {
1033: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
1034: $hashes{$name}->{$key} = \@Temp;
1035: }
1036: }
1037: return "hash '$name' updated";
1038: }
1039:
1040: #-------------------------------------------------------
1041:
1042: =item GETHASH(name,key,index)
1043:
1044: returns the element in hash 'name'
1045: reference by the key 'key', at index 'index' in the values list.
1046:
1047: =cut
1048:
1049: #-------------------------------------------------------
1050: sub GETHASH {
1051: my ($name,$key,$index)=@_;
1052: if (! defined($index)) {
1053: $index = 0;
1054: }
1055: if ($key =~ /^[A-z]\d+$/) {
1.104 matthew 1056: $key = $sheet_values{$key};
1.80 matthew 1057: }
1058: return $hashes{$name}->{$key}->[$index];
1059: }
1060:
1061: #-------------------------------------------------------
1062:
1063: =item CLEARHASH(name)
1064:
1065: clears all the values from the hash 'name'
1066:
1067: =item CLEARHASH(name,key)
1068:
1069: clears all the values from the hash 'name' associated with the given key.
1070:
1071: =cut
1072:
1073: #-------------------------------------------------------
1074: sub CLEARHASH {
1075: my ($name,$key)=@_;
1076: if (defined($key)) {
1077: if (exists($hashes{$name}->{$key})) {
1078: $hashes{$name}->{$key}=undef;
1079: return "hash '$name' key '$key' cleared";
1080: }
1081: } else {
1082: if (exists($hashes{$name})) {
1083: $hashes{$name}=undef;
1084: return "hash '$name' cleared";
1085: }
1086: }
1087: return "Error in clearing hash";
1088: }
1089:
1090: #-------------------------------------------------------
1091:
1092: =item HASH(name,key,value)
1093:
1094: loads values into an internal hash. If a key
1095: already has a value associated with it, the values are sorted numerically.
1096:
1097: =item HASH(name,key)
1098:
1099: returns the 0th value in the hash 'name' associated with 'key'.
1100:
1101: =cut
1102:
1103: #-------------------------------------------------------
1104: sub HASH {
1105: my ($name,$key,$value)=@_;
1106: my @Keys;
1107: undef @Keys;
1108: my @Values;
1109: # Check to see if we have multiple $key values
1110: if ($key =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
1111: my $keymask = &mask($key);
1112: # Assume the keys are addresses
1.104 matthew 1113: my @Temp = grep /$keymask/,keys(%sheet_values);
1114: @Keys = $sheet_values{@Temp};
1.80 matthew 1115: } else {
1116: $Keys[0]= $key;
1117: }
1118: # If $value is empty, return the first value associated
1119: # with the first key.
1120: if (! $value) {
1121: return $hashes{$name}->{$Keys[0]}->[0];
1122: }
1123: # Check to see if we have multiple $value(s)
1124: if ($value =~ /[A-z](\-[A-z])?\d+(\-\d+)?/) {
1125: my $valmask = &mask($value);
1.104 matthew 1126: my @Temp = grep /$valmask/,keys(%sheet_values);
1127: @Values =$sheet_values{@Temp};
1.80 matthew 1128: } else {
1129: $Values[0]= $value;
1130: }
1131: # Add values to hash
1132: for (my $i = 0; $i<=$#Keys; $i++) {
1133: my $key = $Keys[$i];
1134: my $value = ($i<=$#Values ? $Values[$i] : $Values[0]);
1135: if (! exists ($hashes{$name}->{$key})) {
1136: $hashes{$name}->{$key}->[0]=$value;
1137: } else {
1138: my @Temp = sort(@{$hashes{$name}->{$key}},$value);
1139: $hashes{$name}->{$key} = \@Temp;
1140: }
1141: }
1142: return $Values[-1];
1.1 www 1143: }
1.164 ! matthew 1144: END
! 1145: $self->{'safe'}->reval($code);
! 1146: return;
1.1 www 1147: }
1148:
1.164 ! matthew 1149: sub initsheet {
! 1150: my $safeeval = new Safe(shift);
! 1151: my $safehole = new Safe::Hole;
! 1152: $safeeval->permit("entereval");
! 1153: $safeeval->permit(":base_math");
! 1154: $safeeval->permit("sort");
! 1155: $safeeval->deny(":base_io");
! 1156: $safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT');
! 1157: $safehole->wrap(\&mask,$safeeval,'&mask');
! 1158: $safeeval->share('$@');
! 1159: my $code=<<'ENDDEFS';
! 1160: # ---------------------------------------------------- Inside of the safe space
! 1161: #
! 1162: # f: formulas
! 1163: # t: intermediate format (variable references expanded)
! 1164: # v: output values
! 1165: # c: preloaded constants (A-column)
! 1166: # rl: row label
! 1167: # os: other spreadsheets (for student spreadsheet only)
1.1 www 1168:
1.164 ! matthew 1169: undef %sheet_values; # Holds the (computed, final) values for the sheet
! 1170: # This is only written to by &calc, the spreadsheet computation routine.
! 1171: # It is read by many functions
! 1172: undef %t; # Holds the values of the spreadsheet temporarily. Set in &sett,
! 1173: # which does the translation of strings like C5 into the value in C5.
! 1174: # Used in &calc - %t holds the values that are actually eval'd.
! 1175: undef %f; # Holds the formulas for each cell. This is the users
! 1176: # (spreadsheet authors) data for each cell.
! 1177: undef %c; # Holds the constants for a sheet. In the assessment
! 1178: # sheets, this is the A column. Used in &MINPARM, &MAXPARM, &expandnamed,
! 1179: # &sett, and &constants. There is no &getconstants.
! 1180: # &constants is called by &loadstudent, &loadcourse, &load assessment,
! 1181: undef @os; # Holds the names of other spreadsheets - this is used to specify
! 1182: # the spreadsheets that are available for the assessment sheet.
! 1183: # Set by &setothersheets. &setothersheets is called by &handler. A
! 1184: # related subroutine is &othersheets.
! 1185: $errorlog = '';
1.84 matthew 1186:
1.164 ! matthew 1187: $maxrow = 0;
! 1188: $type = '';
1.84 matthew 1189:
1.164 ! matthew 1190: # filename/reference of the sheet
! 1191: $filename = '';
1.84 matthew 1192:
1.164 ! matthew 1193: # user data
! 1194: $uname = '';
! 1195: $uhome = '';
! 1196: $udom = '';
1.84 matthew 1197:
1.164 ! matthew 1198: # course data
1.1 www 1199:
1.164 ! matthew 1200: $csec = '';
! 1201: $chome= '';
! 1202: $cnum = '';
! 1203: $cdom = '';
! 1204: $cid = '';
! 1205: $coursefilename = '';
1.103 matthew 1206:
1.164 ! matthew 1207: # symb
1.103 matthew 1208:
1.164 ! matthew 1209: $usymb = '';
1.103 matthew 1210:
1.164 ! matthew 1211: # error messages
! 1212: $errormsg = '';
1.103 matthew 1213:
1214: #-------------------------------------------------------
1215:
1.164 ! matthew 1216: =item NUM(range)
1.103 matthew 1217:
1.164 ! matthew 1218: returns the number of items in the range.
1.103 matthew 1219:
1220: =cut
1221:
1222: #-------------------------------------------------------
1.164 ! matthew 1223: sub NUM {
! 1224: my $mask=&mask(@_);
! 1225: my $num= $#{@{grep(/$mask/,keys(%sheet_values))}}+1;
! 1226: return $num;
1.103 matthew 1227: }
1228:
1.164 ! matthew 1229: sub BIN {
! 1230: my ($low,$high,$lower,$upper)=@_;
! 1231: my $mask=&mask($lower,$upper);
! 1232: my $num=0;
! 1233: foreach (grep /$mask/,keys(%sheet_values)) {
! 1234: if (($sheet_values{$_}>=$low) && ($sheet_values{$_}<=$high)) {
! 1235: $num++;
1.104 matthew 1236: }
1.6 www 1237: }
1.164 ! matthew 1238: return $num;
1.6 www 1239: }
1240:
1.164 ! matthew 1241:
! 1242: #-------------------------------------------------------
! 1243:
! 1244: =item SUM(range)
! 1245:
! 1246: returns the sum of items in the range.
! 1247:
! 1248: =cut
! 1249:
! 1250: #-------------------------------------------------------
! 1251: sub SUM {
! 1252: my $mask=&mask(@_);
! 1253: my $sum=0;
! 1254: foreach (grep /$mask/,keys(%sheet_values)) {
! 1255: $sum+=$sheet_values{$_};
1.18 www 1256: }
1.164 ! matthew 1257: return $sum;
1.118 matthew 1258: }
1259:
1.164 ! matthew 1260: #-------------------------------------------------------
! 1261:
! 1262: =item MEAN(range)
! 1263:
! 1264: compute the average of the items in the range.
! 1265:
! 1266: =cut
1.6 www 1267:
1.164 ! matthew 1268: #-------------------------------------------------------
! 1269: sub MEAN {
! 1270: my $mask=&mask(@_);
! 1271: # $errorlog.='(mask = '.$mask.' )';
! 1272: my $sum=0;
! 1273: my $num=0;
! 1274: foreach (grep /$mask/,keys(%sheet_values)) {
! 1275: $sum+=$sheet_values{$_};
! 1276: $num++;
1.122 matthew 1277: }
1.164 ! matthew 1278: if ($num) {
! 1279: return $sum/$num;
! 1280: } else {
! 1281: return undef;
! 1282: }
1.6 www 1283: }
1284:
1.164 ! matthew 1285: #-------------------------------------------------------
! 1286:
! 1287: =item STDDEV(range)
! 1288:
! 1289: compute the standard deviation of the items in the range.
! 1290:
! 1291: =cut
1.55 www 1292:
1.164 ! matthew 1293: #-------------------------------------------------------
! 1294: sub STDDEV {
! 1295: my $mask=&mask(@_);
! 1296: # $errorlog.='(mask = '.$mask.' )';
! 1297: my $sum=0; my $num=0;
! 1298: foreach (grep /$mask/,keys(%sheet_values)) {
! 1299: $sum+=$sheet_values{$_};
! 1300: $num++;
! 1301: }
! 1302: unless ($num>1) { return undef; }
! 1303: my $mean=$sum/$num;
! 1304: $sum=0;
! 1305: foreach (grep /$mask/,keys(%sheet_values)) {
! 1306: $sum+=($sheet_values{$_}-$mean)**2;
1.125 matthew 1307: }
1.164 ! matthew 1308: return sqrt($sum/($num-1));
1.4 www 1309: }
1310:
1.164 ! matthew 1311: #-------------------------------------------------------
! 1312:
! 1313: =item PROD(range)
1.4 www 1314:
1.164 ! matthew 1315: compute the product of the items in the range.
1.4 www 1316:
1.164 ! matthew 1317: =cut
1.132 matthew 1318:
1.164 ! matthew 1319: #-------------------------------------------------------
! 1320: sub PROD {
! 1321: my $mask=&mask(@_);
! 1322: my $prod=1;
! 1323: foreach (grep /$mask/,keys(%sheet_values)) {
! 1324: $prod*=$sheet_values{$_};
1.139 matthew 1325: }
1.164 ! matthew 1326: return $prod;
1.139 matthew 1327: }
1328:
1.164 ! matthew 1329: #-------------------------------------------------------
! 1330:
! 1331: =item MAX(range)
! 1332:
! 1333: compute the maximum of the items in the range.
! 1334:
! 1335: =cut
1.97 www 1336:
1.164 ! matthew 1337: #-------------------------------------------------------
! 1338: sub MAX {
! 1339: my $mask=&mask(@_);
! 1340: my $max='-';
! 1341: foreach (grep /$mask/,keys(%sheet_values)) {
! 1342: unless ($max) { $max=$sheet_values{$_}; }
! 1343: if (($sheet_values{$_}>$max) || ($max eq '-')) { $max=$sheet_values{$_}; }
1.121 matthew 1344: }
1.164 ! matthew 1345: return $max;
1.14 www 1346: }
1.55 www 1347:
1.164 ! matthew 1348: #-------------------------------------------------------
1.136 matthew 1349:
1.164 ! matthew 1350: =item MIN(range)
1.136 matthew 1351:
1.164 ! matthew 1352: compute the minimum of the items in the range.
1.136 matthew 1353:
1.164 ! matthew 1354: =cut
1.6 www 1355:
1.164 ! matthew 1356: #-------------------------------------------------------
! 1357: sub MIN {
! 1358: my $mask=&mask(@_);
! 1359: my $min='-';
! 1360: foreach (grep /$mask/,keys(%sheet_values)) {
! 1361: unless ($max) { $max=$sheet_values{$_}; }
! 1362: if (($sheet_values{$_}<$min) || ($min eq '-')) {
! 1363: $min=$sheet_values{$_};
! 1364: }
1.61 www 1365: }
1.164 ! matthew 1366: return $min;
1.6 www 1367: }
1368:
1.164 ! matthew 1369: #-------------------------------------------------------
! 1370:
! 1371: =item SUMMAX(num,lower,upper)
! 1372:
! 1373: compute the sum of the largest 'num' items in the range from
! 1374: 'lower' to 'upper'
! 1375:
! 1376: =cut
! 1377:
! 1378: #-------------------------------------------------------
! 1379: sub SUMMAX {
! 1380: my ($num,$lower,$upper)=@_;
! 1381: my $mask=&mask($lower,$upper);
! 1382: my @inside=();
! 1383: foreach (grep /$mask/,keys(%sheet_values)) {
! 1384: push (@inside,$sheet_values{$_});
! 1385: }
! 1386: @inside=sort(@inside);
! 1387: my $sum=0; my $i;
! 1388: for ($i=$#inside;(($i>$#inside-$num) && ($i>=0));$i--) {
! 1389: $sum+=$inside[$i];
1.65 www 1390: }
1.164 ! matthew 1391: return $sum;
1.132 matthew 1392: }
1393:
1.164 ! matthew 1394: #-------------------------------------------------------
! 1395:
! 1396: =item SUMMIN(num,lower,upper)
! 1397:
! 1398: compute the sum of the smallest 'num' items in the range from
! 1399: 'lower' to 'upper'
! 1400:
! 1401: =cut
1.135 matthew 1402:
1.164 ! matthew 1403: #-------------------------------------------------------
! 1404: sub SUMMIN {
! 1405: my ($num,$lower,$upper)=@_;
! 1406: my $mask=&mask($lower,$upper);
! 1407: my @inside=();
! 1408: foreach (grep /$mask/,keys(%sheet_values)) {
! 1409: $inside[$#inside+1]=$sheet_values{$_};
1.132 matthew 1410: }
1.164 ! matthew 1411: @inside=sort(@inside);
! 1412: my $sum=0; my $i;
! 1413: for ($i=0;(($i<$num) && ($i<=$#inside));$i++) {
! 1414: $sum+=$inside[$i];
1.133 matthew 1415: }
1.164 ! matthew 1416: return $sum;
1.132 matthew 1417: }
1418:
1.164 ! matthew 1419: #-------------------------------------------------------
! 1420:
! 1421: =item MINPARM(parametername)
! 1422:
! 1423: Returns the minimum value of the parameters matching the parametername.
! 1424: parametername should be a string such as 'duedate'.
1.132 matthew 1425:
1.164 ! matthew 1426: =cut
1.154 matthew 1427:
1.164 ! matthew 1428: #-------------------------------------------------------
! 1429: sub MINPARM {
! 1430: my ($expression) = @_;
! 1431: my $min = undef;
! 1432: study($expression);
! 1433: foreach $parameter (keys(%c)) {
! 1434: next if ($parameter !~ /$expression/);
! 1435: if ((! defined($min)) || ($min > $c{$parameter})) {
! 1436: $min = $c{$parameter}
1.78 matthew 1437: }
1.6 www 1438: }
1.164 ! matthew 1439: return $min;
1.132 matthew 1440: }
1441:
1.164 ! matthew 1442: #-------------------------------------------------------
! 1443:
! 1444: =item MAXPARM(parametername)
! 1445:
! 1446: Returns the maximum value of the parameters matching the input parameter name.
! 1447: parametername should be a string such as 'duedate'.
! 1448:
! 1449: =cut
! 1450:
! 1451: #-------------------------------------------------------
! 1452: sub MAXPARM {
! 1453: my ($expression) = @_;
! 1454: my $max = undef;
! 1455: study($expression);
! 1456: foreach $parameter (keys(%c)) {
! 1457: next if ($parameter !~ /$expression/);
! 1458: if ((! defined($min)) || ($max < $c{$parameter})) {
! 1459: $max = $c{$parameter}
1.133 matthew 1460: }
1461: }
1.164 ! matthew 1462: return $max;
1.132 matthew 1463: }
1464:
1.164 ! matthew 1465: sub calc {
! 1466: # $errorlog .= "\%t has ".(keys(%t))." keys\n";
! 1467: %sheet_values = %t; # copy %t into %sheet_values.
! 1468: # $errorlog .= "\%sheet_values has ".(keys(%sheet_values))." keys\n";
! 1469: my $notfinished=1;
! 1470: my $lastcalc='';
! 1471: my $depth=0;
! 1472: while ($notfinished) {
! 1473: $notfinished=0;
! 1474: while (my ($cell,$value) = each(%t)) {
! 1475: my $old=$sheet_values{$cell};
! 1476: $sheet_values{$cell}=eval $value;
! 1477: if ($@) {
! 1478: undef %sheet_values;
! 1479: return $cell.': '.$@;
! 1480: }
! 1481: if ($sheet_values{$cell} ne $old) {
! 1482: $notfinished=1;
! 1483: $lastcalc=$cell;
! 1484: }
1.135 matthew 1485: }
1.164 ! matthew 1486: $depth++;
! 1487: if ($depth>100) {
! 1488: undef %sheet_values;
! 1489: return $lastcalc.': Maximum calculation depth exceeded';
1.136 matthew 1490: }
1.135 matthew 1491: }
1.164 ! matthew 1492: return '';
1.135 matthew 1493: }
1494:
1.164 ! matthew 1495: # ------------------------------------------- End of "Inside of the safe space"
! 1496: ENDDEFS
! 1497: $safeeval->reval($code);
! 1498: return $safeeval;
1.135 matthew 1499: }
1500:
1.164 ! matthew 1501:
! 1502: #
! 1503: # expandnamed used to reside in the safe space
! 1504: #
! 1505: sub expandnamed {
! 1506: my $self = shift;
! 1507: my $expression=shift;
! 1508: if ($expression=~/^\&/) {
! 1509: my ($func,$var,$formula)=($expression=~/^\&(\w+)\(([^\;]+)\;(.*)\)/);
! 1510: my @vars=split(/\W+/,$formula);
! 1511: my %values=();
! 1512: foreach my $varname ( @vars ) {
! 1513: if ($varname=~/\D/) {
! 1514: $formula=~s/$varname/'$c{\''.$varname.'\'}'/ge;
! 1515: $varname=~s/$var/\(\\w\+\)/g;
! 1516: foreach (keys(%{$self->{'constants'}})) {
! 1517: if ($_=~/$varname/) {
! 1518: $values{$1}=1;
! 1519: }
! 1520: }
! 1521: }
! 1522: }
! 1523: if ($func eq 'EXPANDSUM') {
! 1524: my $result='';
! 1525: foreach (keys(%values)) {
! 1526: my $thissum=$formula;
! 1527: $thissum=~s/$var/$_/g;
! 1528: $result.=$thissum.'+';
! 1529: }
! 1530: $result=~s/\+$//;
! 1531: return $result;
! 1532: } else {
! 1533: return 0;
! 1534: }
! 1535: } else {
! 1536: # it is not a function, so it is a parameter name
! 1537: # We should do the following:
! 1538: # 1. Take the list of parameter names
! 1539: # 2. look through the list for ones that match the parameter we want
! 1540: # 3. If there are no collisions, return the one that matches
! 1541: # 4. If there is a collision, return 'bad parameter name error'
! 1542: my $returnvalue = '';
! 1543: my @matches = ();
! 1544: $#matches = -1;
! 1545: study $expression;
! 1546: my $parameter;
! 1547: foreach $parameter (keys(%{$self->{'constants'}})) {
! 1548: push @matches,$parameter if ($parameter =~ /$expression/);
! 1549: }
! 1550: if (scalar(@matches) == 0) {
! 1551: $returnvalue = 'unmatched parameter: '.$parameter;
! 1552: } elsif (scalar(@matches) == 1) {
! 1553: # why do we not do this lookup here, instead of delaying it?
! 1554: $returnvalue = '$c{\''.$matches[0].'\'}';
! 1555: } elsif (scalar(@matches) > 0) {
! 1556: # more than one match. Look for a concise one
! 1557: $returnvalue = "'non-unique parameter name : $expression'";
! 1558: foreach (@matches) {
! 1559: if (/^$expression$/) {
! 1560: # why do we not do this lookup here?
! 1561: $returnvalue = '$c{\''.$_.'\'}';
! 1562: }
! 1563: }
! 1564: } else {
! 1565: # There was a negative number of matches, which indicates
! 1566: # something is wrong with reality. Better warn the user.
! 1567: $returnvalue = 'bizzare parameter: '.$parameter;
! 1568: }
! 1569: return $returnvalue;
1.134 matthew 1570: }
1.135 matthew 1571: }
1572:
1.164 ! matthew 1573: #
! 1574: # sett used to reside in the safe space
! 1575: #
! 1576: sub sett {
! 1577: my $self = shift;
! 1578: my %t=();
! 1579: my $pattern='';
! 1580: if ($self->{'type'} eq 'assesscalc') {
! 1581: $pattern='A';
! 1582: } else {
! 1583: $pattern='[A-Z]';
1.139 matthew 1584: }
1.164 ! matthew 1585: # Deal with the template row
! 1586: foreach ($self->template_cells()) {
! 1587: my ($col) = ($_=~/template\_(\w)/);
! 1588: next if ($col=~/^$pattern/);
! 1589: foreach ($self->A_column()) {
! 1590: my ($trow)=($_!~/A(\d+)/);
! 1591: next if (! $trow);
! 1592: # Get the name of this cell
! 1593: my $lb=$col.$trow;
! 1594: # Grab the template declaration
! 1595: $t{$lb}=$self->formula('template_'.$col);
! 1596: # Replace '#' with the row number
! 1597: $t{$lb}=~s/\#/$trow/g;
! 1598: # Replace '....' with ','
! 1599: $t{$lb}=~s/\.\.+/\,/g;
! 1600: # Replace 'A0' with the value from 'A0'
! 1601: $t{$lb}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
! 1602: # Replace parameters
! 1603: $t{$lb}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
! 1604: }
1.139 matthew 1605: }
1.164 ! matthew 1606: # Deal with the normal cells
! 1607: foreach ($self->formulas_keys()) {
! 1608: next if ($_=~/template\_/);
! 1609: if (($_=~/^$pattern(\d+)/) && ($1)) {
! 1610: if ($self->formula($_) !~ /^\!/) {
! 1611: $t{$_}=$self->{'constants'}->{$_};
1.143 matthew 1612: }
1.164 ! matthew 1613: } else {
! 1614: $t{$_}=$self->formula($_);
! 1615: $t{$_}=~s/\.\.+/\,/g;
! 1616: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
! 1617: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
1.143 matthew 1618: }
1.164 ! matthew 1619: }
! 1620: # For inserted lines, [B-Z] is also valid
! 1621: if ($self->{'type'} ne 'assesscalc') {
! 1622: foreach ($self->formulas_keys()) {
! 1623: next if ($_ !~ /[B-Z](\d+)/);
! 1624: next if ($self->formula('A'.$1) !~ /^[\~\-]/);
! 1625: $t{$_}=$self->formula($_);
! 1626: $t{$_}=~s/\.\.+/\,/g;
! 1627: $t{$_}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
! 1628: $t{$_}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
1.134 matthew 1629: }
1630: }
1.164 ! matthew 1631: # For some reason 'A0' gets special treatment... This seems superfluous
! 1632: # but I imagine it is here for a reason.
! 1633: $t{'A0'}=$self->formula('A0');
! 1634: $t{'A0'}=~s/\.\.+/\,/g;
! 1635: $t{'A0'}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
! 1636: $t{'A0'}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
! 1637: # Put %t into the safe space
! 1638: %{$self->{'safe'}->varglob('t')}=%t;
1.132 matthew 1639: }
1640:
1.6 www 1641:
1.164 ! matthew 1642: ###########################################
! 1643: ### Row output routines ###
! 1644: ###########################################
! 1645: #
! 1646: # get_row: Produce output row n from sheet by calling the appropriate routine
! 1647: #
! 1648: sub get_row {
! 1649: my $self = shift;
! 1650: my ($n) = @_;
! 1651: my ($rowlabel,@rowdata);
! 1652: if ($n eq '-') {
! 1653: ($rowlabel,@rowdata) = $self->templaterow();
! 1654: } elsif ($self->{'type'} eq 'studentcalc') {
! 1655: ($rowlabel,@rowdata) = $self->outrowassess($n);
1.133 matthew 1656: } else {
1.164 ! matthew 1657: ($rowlabel,@rowdata) = $self->outrow($n);
1.133 matthew 1658: }
1.164 ! matthew 1659: return ($rowlabel,@rowdata);
1.132 matthew 1660: }
1661:
1.164 ! matthew 1662: sub templaterow {
! 1663: my $self = shift;
! 1664: my @cols=();
! 1665: my $rowlabel = 'Template</td><td> ';
! 1666: foreach my $n ('A','B','C','D','E','F','G','H','I','J','K','L','M',
! 1667: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
! 1668: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
! 1669: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
! 1670: push(@cols,{ name => 'template_'.$_,
! 1671: formula => $self->formula('template_'.$n),
! 1672: value => $self->value('template_'.$n) });
1.81 matthew 1673: }
1.164 ! matthew 1674: return ($rowlabel,@cols);
1.55 www 1675: }
1676:
1.164 ! matthew 1677: sub outrowassess {
! 1678: my $self = shift;
! 1679: # $n is the current row number
! 1680: my ($n) = @_;
! 1681: my @cols=();
! 1682: my $rowlabel='';
! 1683: if ($n) {
! 1684: my ($usy,$ufn)=split(/__&&&\__/,$self->formula('A'.$n));
! 1685: if (exists($self->{'rowlabel'}->{$usy})) {
! 1686: # This is dumb, but we need the information when we output
! 1687: # the html version of the studentcalc spreadsheet for the
! 1688: # links to the assesscalc sheets.
! 1689: $rowlabel = $self->{'rowlabel'}->{$usy}.':'.
! 1690: &Apache::lonnet::escape($ufn);
! 1691: } else {
! 1692: $rowlabel = '';
! 1693: }
! 1694: } elsif ($ENV{'request.role'} =~ /^st\./) {
! 1695: $rowlabel = 'Summary</td><td>0';
! 1696: } else {
! 1697: $rowlabel = 'Export</td><td>0';
! 1698: }
! 1699: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
! 1700: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
! 1701: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
! 1702: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
! 1703: push(@cols,{ name => $_.$n,
! 1704: formula => $self->formula($_.$n),
! 1705: value => $self->value($_.$n)});
1.82 matthew 1706: }
1.164 ! matthew 1707: return ($rowlabel,@cols);
! 1708: }
! 1709:
! 1710: sub outrow {
! 1711: my $self = shift;
! 1712: my ($n)=@_;
! 1713: my @cols=();
! 1714: my $rowlabel;
! 1715: if ($n) {
! 1716: $rowlabel = $self->{'rowlabel'}->{$self->formula('A'.$n)};
! 1717: } else {
! 1718: if ($self->{'type'} eq 'classcalc') {
! 1719: $rowlabel = 'Summary</td><td>0';
! 1720: } else {
! 1721: $rowlabel = 'Export</td><td>0';
1.82 matthew 1722: }
1723: }
1.164 ! matthew 1724: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
! 1725: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z',
! 1726: 'a','b','c','d','e','f','g','h','i','j','k','l','m',
! 1727: 'n','o','p','q','r','s','t','u','v','w','x','y','z') {
! 1728: push(@cols,{ name => $_.$n,
! 1729: formula => $self->formula($_.$n),
! 1730: value => $self->value($_.$n)});
! 1731: }
! 1732: return ($rowlabel,@cols);
1.82 matthew 1733: }
1734:
1.164 ! matthew 1735: ########################################################
! 1736: #### Spreadsheet calculation methods #####
! 1737: ########################################################
1.55 www 1738: #
1.164 ! matthew 1739: # calcsheet: makes all the calls to compute the spreadsheet.
1.27 www 1740: #
1.164 ! matthew 1741: sub calcsheet {
! 1742: my $self = shift;
! 1743: $self->sync_safe_space();
! 1744: $self->clear_errorlog();
! 1745: $self->sett();
! 1746: my $result = $self->{'safe'}->reval('&calc();');
! 1747: %{$self->{'values'}} = %{$self->{'safe'}->varglob('sheet_values')};
! 1748: # $self->logthis($self->get_errorlog());
! 1749: # $self->logthis('number of values = '.(keys(%{$self->{'values'}})));
! 1750: return $result;
! 1751: }
! 1752:
! 1753: ##
! 1754: ## sync_safe_space: Called by calcsheet to make sure all the data we
! 1755: # need to calculate is placed into the safe space
! 1756: ##
! 1757: sub sync_safe_space {
! 1758: my $self = shift;
! 1759: # Inside the safe space 'formulas' has a diabolical alter-ego named 'f'.
! 1760: %{$self->{'safe'}->varglob('f')}=%{$self->{'formulas'}};
! 1761: # 'constants' leads a peaceful hidden life of 'c'.
! 1762: %{$self->{'safe'}->varglob('c')}=%{$self->{'constants'}};
! 1763: # 'othersheets' hides as 'os', a disguise few can penetrate.
! 1764: @{$self->{'safe'}->varglob('os')}=@{$self->{'othersheets'}};
! 1765: }
! 1766:
! 1767: ##
! 1768: ## Retrieve the error log from the safe space (used for debugging)
! 1769: ##
! 1770: sub get_errorlog {
! 1771: my $self = shift;
! 1772: $self->{'errorlog'} = ${$self->{'safe'}->varglob('errorlog')};
! 1773: return $self->{'errorlog'};
! 1774: }
! 1775:
! 1776: ##
! 1777: ## Clear the error log inside the safe space
! 1778: ##
! 1779: sub clear_errorlog {
! 1780: my $self = shift;
! 1781: ${$self->{'safe'}->varglob('errorlog')} = '';
! 1782: $self->{'errorlog'} = '';
! 1783: }
! 1784:
! 1785:
! 1786: ########################################################
! 1787: #### Spreadsheet content retrieval/setting methods #####
! 1788: ########################################################
! 1789: ##
! 1790: ## contents: either set or get the constants. Cannot do both. It is just too
! 1791: ## clunky to swing around big hashes when we may not need to.
! 1792: ##
! 1793: sub constants {
! 1794: my $self=shift;
! 1795: my ($constants) = @_;
! 1796: if (defined($constants)) {
! 1797: if (! ref($constants)) {
! 1798: my %tmp = @_;
! 1799: $constants = \%tmp;
1.104 matthew 1800: }
1.164 ! matthew 1801: $self->{'constants'} = $constants;
! 1802: return;
1.104 matthew 1803: } else {
1.164 ! matthew 1804: return %{$self->{'constants'}};
1.3 www 1805: }
1806: }
1.164 ! matthew 1807:
! 1808: ##
! 1809: ## formulas: either set or get the formulas. Cannot do both. It is just too
! 1810: ## clunky to swing around big hashes when we may not need to.
! 1811: sub formulas {
! 1812: my $self=shift;
! 1813: my ($formulas) = @_;
! 1814: if (defined($formulas)) {
! 1815: if (! ref($formulas)) {
! 1816: my %tmp = @_;
! 1817: $formulas = \%tmp;
! 1818: }
! 1819: $self->{'formulas'} = $formulas;
! 1820: $self->{'A_column'} = [];
! 1821: $self->{'template_cells'} = [];
! 1822: return;
! 1823: } else {
! 1824: return %{$self->{'formulas'}};
1.105 matthew 1825: }
1.28 www 1826: }
1827:
1.164 ! matthew 1828: ##
! 1829: ## formulas_keys: Return the keys to the formulas hash.
! 1830: ##
! 1831: sub formulas_keys {
! 1832: my $self = shift;
! 1833: my @keys = keys(%{$self->{'formulas'}});
! 1834: # $self->logthis('formulas keys has '.@keys.' elements');
! 1835: return keys(%{$self->{'formulas'}});
1.19 www 1836: }
1837:
1.164 ! matthew 1838: ##
! 1839: ## formula: Return the formula for a given cell in the spreadsheet
! 1840: ## returns '' if the cell does not have a formula or does not exist
! 1841: ##
! 1842: sub formula {
! 1843: my $self = shift;
! 1844: my $cell = shift;
! 1845: if (defined($cell) && exists($self->{'formulas'}->{$cell})) {
! 1846: return $self->{'formulas'}->{$cell};
1.10 www 1847: }
1.164 ! matthew 1848: return '';
! 1849: }
! 1850:
! 1851: ##
! 1852: ## logthis: write the input to lonnet.log
! 1853: ##
! 1854: sub logthis {
! 1855: my $self = shift;
! 1856: my $message = shift;
! 1857: &Apache::lonnet::logthis($self->{'type'}.':'.
! 1858: $self->{'uname'}.':'.$self->{'udom'}.':'.
! 1859: $message);
1.10 www 1860: }
1861:
1.164 ! matthew 1862: ##
! 1863: ## dump_formulas_to_log: makes lonnet.log huge...
! 1864: ##
! 1865: sub dump_formulas_to_log {
! 1866: my $self =shift;
! 1867: $self->logthis("Spreadsheet formulas");
! 1868: $self->logthis("--------------------------------------------------------");
! 1869: while (my ($cell, $formula) = each(%{$self->{'formulas'}})) {
! 1870: $self->logthis(' '.$cell.' = '.$formula);
1.153 matthew 1871: }
1.164 ! matthew 1872: $self->logthis("--------------------------------------------------------");}
! 1873:
! 1874: ##
! 1875: ## value: returns the computed value of a particular cell
! 1876: ##
! 1877: sub value {
! 1878: my $self = shift;
! 1879: my $cell = shift;
! 1880: if (defined($cell) && exists($self->{'values'}->{$cell})) {
! 1881: return $self->{'values'}->{$cell};
1.55 www 1882: }
1.164 ! matthew 1883: return '';
1.10 www 1884: }
1885:
1.164 ! matthew 1886: ##
! 1887: ## dump_values_to_log: makes lonnet.log huge...
! 1888: ##
! 1889: sub dump_values_to_log {
! 1890: my $self =shift;
! 1891: $self->logthis("Spreadsheet Values");
! 1892: $self->logthis("--------------------------------------------------------");
! 1893: while (my ($cell, $value) = each(%{$self->{'values'}})) {
! 1894: $self->logthis(' '.$cell.' = '.$value);
! 1895: }
! 1896: $self->logthis("--------------------------------------------------------");}
! 1897:
! 1898: ################################
! 1899: ## Helper functions ##
! 1900: ################################
! 1901: ##
! 1902: ## rebuild_stats: rebuilds the A_column and template_cells arrays
! 1903: ##
! 1904: sub rebuild_stats {
! 1905: my $self = shift;
! 1906: $self->{'A_column'}=[];
! 1907: $self->{'template_cells'}=[];
! 1908: foreach my $cell($self->formulas_keys()) {
! 1909: push(@{$self->{'A_column'}},$cell) if $cell =~ /^A\d+/;
! 1910: push(@{$self->{'template_cells'}},$cell) if ($cell =~ /^template_/);
! 1911: }
! 1912: # $self->logthis('rebuilt A_column '.@{$self->{'A_column'}});
! 1913: # $self->logthis('rebuilt tempate_cells '.@{$self->{'template_cells'}});
! 1914: return;
! 1915: }
1.11 www 1916:
1.164 ! matthew 1917: ##
! 1918: ## template_cells returns a list of the cells defined in the template row
! 1919: ##
! 1920: sub template_cells {
! 1921: my $self = shift;
! 1922: $self->rebuild_stats() if (!@{$self->{'template_cells'}});
! 1923: return @{$self->{'template_cells'}};
! 1924: }
1.11 www 1925:
1.164 ! matthew 1926: ##
! 1927: ## A_column returns a list of the names of cells defined in the A column
! 1928: ##
! 1929: sub A_column {
! 1930: my $self = shift;
! 1931: $self->rebuild_stats() if (!@{$self->{'A_column'}});
! 1932: return @{$self->{'A_column'}};
! 1933: }
1.11 www 1934:
1.164 ! matthew 1935: ##
! 1936: ## Sigh....
! 1937: ##
! 1938: sub setothersheets {
! 1939: my $self = shift;
! 1940: my @othersheets = @_;
! 1941: $self->{'othersheets'} = \@othersheets;
! 1942: }
1.11 www 1943:
1.164 ! matthew 1944: ##
! 1945: ## rowlabels: get or set the rowlabels hash from the spreadsheet.
! 1946: ##
! 1947: sub rowlabels {
! 1948: my $self = shift;
! 1949: my ($rowlabel) = @_;
! 1950: if (defined($rowlabel)) {
! 1951: if (! ref($rowlabel)) {
! 1952: my %tmp = @_;
! 1953: $rowlabel = \%tmp;
! 1954: }
! 1955: $self->{'rowlabel'}=$rowlabel;
! 1956: return;
! 1957: } else {
! 1958: return %{$self->{'rowlabel'}} if (defined($self->{'rowlabels'}));
! 1959: }
! 1960: }
1.11 www 1961:
1.164 ! matthew 1962: ##
! 1963: ## gettitle: returns a title for the spreadsheet.
! 1964: ##
! 1965: sub gettitle {
! 1966: my $self = shift;
! 1967: if ($self->{'type'} eq 'classcalc') {
! 1968: return $self->{'coursedesc'};
! 1969: } elsif ($self->{'type'} eq 'studentcalc') {
! 1970: return 'Grades for '.$self->{'uname'}.'@'.$self->{'udom'};
! 1971: } elsif ($self->{'type'} eq 'assesscalc') {
! 1972: if (($self->{'usymb'} eq '_feedback') ||
! 1973: ($self->{'usymb'} eq '_evaluation') ||
! 1974: ($self->{'usymb'} eq '_discussion') ||
! 1975: ($self->{'usymb'} eq '_tutoring')) {
! 1976: my $title = $self->{'usymb'};
! 1977: $title =~ s/^_//;
! 1978: $title = ucfirst($title);
! 1979: return $title;
! 1980: }
! 1981: return if (! defined($self->{'mapid'}) ||
! 1982: $self->{'mapid'} !~ /^\d+$/);
! 1983: my $mapid = $self->{'mapid'};
! 1984: return if (! defined($self->{'resid'}) ||
! 1985: $self->{'resid'} !~ /^\d+$/);
! 1986: my $resid = $self->{'resid'};
! 1987: my %course_db;
! 1988: tie(%course_db,'GDBM_File',$self->{'coursefilename'}.'.db',
! 1989: &GDBM_READER(),0640);
! 1990: return if (! tied(%course_db));
! 1991: my $key = 'title_'.$mapid.'.'.$resid;
! 1992: my $title = '';
! 1993: if (exists($course_db{$key})) {
! 1994: $title = $course_db{$key};
! 1995: } else {
! 1996: $title = $self->{'usymb'};
! 1997: }
! 1998: untie (%course_db);
! 1999: return $title;
! 2000: }
! 2001: }
1.11 www 2002:
1.164 ! matthew 2003: #
! 2004: # Export of A-row
! 2005: #
! 2006: sub exportdata {
! 2007: my $self=shift;
! 2008: my @exportarray=();
! 2009: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
! 2010: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
! 2011: push(@exportarray,$self->value($_.'0'));
! 2012: }
! 2013: return @exportarray;
! 2014: }
1.11 www 2015:
1.164 ! matthew 2016: ##
! 2017: ## update_student_sheet: experimental function
! 2018: ##
! 2019: sub update_student_sheet{
! 2020: my $self = shift;
! 2021: my ($r,$c) = @_;
! 2022: # Load in the studentcalc sheet
! 2023: $self->readsheet('default_studentcalc');
! 2024: # Determine the structure (contained assessments, etc) of the sheet
! 2025: $self->updatesheet();
! 2026: # Load in the cached sheets for this student
! 2027: $self->cachedssheets();
! 2028: # Load in the (possibly cached) data from the assessment sheets
! 2029: $self->loadstudent($r,$c);
! 2030: # Compute the sheet
! 2031: $self->calcsheet();
! 2032: }
1.11 www 2033:
1.164 ! matthew 2034: #
! 2035: # sort_indicies: returns an ordered list of the rows of the spreadsheet
! 2036: #
! 2037: sub sort_indicies {
! 2038: my $self = shift;
! 2039: my @sortidx=();
1.104 matthew 2040: #
1.164 ! matthew 2041: if ($self->{'type'} eq 'classcalc') {
! 2042: my @sortby=(undef);
! 2043: # Skip row 0
! 2044: for (my $row=1;$row<=$self->{'maxrow'};$row++) {
! 2045: my (undef,$sname,$sdom,$fullname,$section,$id) =
! 2046: split(':',$self->{'rowlabel'}->{$self->formula('A'.$row)});
! 2047: push (@sortby, lc($fullname));
! 2048: push (@sortidx, $row);
! 2049: }
! 2050: @sortidx = sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
! 2051: } elsif ($self->{'type'} eq 'studentcalc') {
! 2052: my @sortby1=(undef);
! 2053: my @sortby2=(undef);
! 2054: # Skip row 0
! 2055: for (my $row=1;$row<=$self->{'maxrow'};$row++) {
! 2056: my ($key,undef) = split(/__&&&\__/,$self->formula('A'.$row));
! 2057: my $rowlabel = $self->{'rowlabel'}->{$key};
! 2058: my (undef,$symb,$mapid,$resid,$title,$ufn) =
! 2059: split(':',$rowlabel);
! 2060: $ufn = &Apache::lonnet::unescape($ufn);
! 2061: $symb = &Apache::lonnet::unescape($symb);
! 2062: $title = &Apache::lonnet::unescape($title);
! 2063: my ($sequence) = ($symb =~ /\/([^\/]*\.sequence)/);
! 2064: if ($sequence eq '') {
! 2065: $sequence = $symb;
! 2066: }
! 2067: push (@sortby1, $sequence);
! 2068: push (@sortby2, $title);
! 2069: push (@sortidx, $row);
! 2070: }
! 2071: @sortidx = sort { $sortby1[$a] cmp $sortby1[$b] ||
! 2072: $sortby2[$a] cmp $sortby2[$b] } @sortidx;
! 2073: } else {
! 2074: my @sortby=(undef);
! 2075: # Skip row 0
! 2076: $self->sync_safe_space();
! 2077: for (my $row=1;$row<=$self->{'maxrow'};$row++) {
! 2078: push (@sortby, $self->{'safe'}->reval('$f{"A'.$row.'"}'));
! 2079: push (@sortidx, $row);
! 2080: }
! 2081: @sortidx = sort { $sortby[$a] cmp $sortby[$b]; } @sortidx;
1.104 matthew 2082: }
1.164 ! matthew 2083: return @sortidx;
1.11 www 2084: }
2085:
1.164 ! matthew 2086: #############################################################
! 2087: ### ###
! 2088: ### Spreadsheet Output Routines ###
! 2089: ### ###
! 2090: #############################################################
1.133 matthew 2091:
1.164 ! matthew 2092: ############################################
! 2093: ## HTML output routines ##
! 2094: ############################################
! 2095: sub html_editable_cell {
! 2096: my ($cell,$bgcolor) = @_;
! 2097: my $result;
! 2098: my ($name,$formula,$value);
! 2099: if (defined($cell)) {
! 2100: $name = $cell->{'name'};
! 2101: $formula = $cell->{'formula'};
! 2102: $value = $cell->{'value'};
! 2103: }
! 2104: $name = '' if (! defined($name));
! 2105: $formula = '' if (! defined($formula));
! 2106: if (! defined($value)) {
! 2107: $value = '<font color="'.$bgcolor.'">#</font>';
! 2108: if ($formula ne '') {
! 2109: $value = '<i>undefined value</i>';
1.148 matthew 2110: }
1.164 ! matthew 2111: } elsif ($value =~ /^\s*$/ ) {
! 2112: $value = '<font color="'.$bgcolor.'">#</font>';
1.133 matthew 2113: } else {
1.164 ! matthew 2114: $value = &HTML::Entities::encode($value) if ($value !~/ /);
! 2115: }
! 2116: # Make the formula safe for outputting
! 2117: $formula =~ s/\'/\"/g;
! 2118: # The formula will be parsed by the browser *twice* before being
! 2119: # displayed to the user for editing.
! 2120: $formula = &HTML::Entities::encode(&HTML::Entities::encode($formula));
! 2121: # Escape newlines so they make it into the edit window
! 2122: $formula =~ s/\n/\\n/gs;
! 2123: # Glue everything together
! 2124: $result .= "<a href=\"javascript:celledit(\'".
! 2125: $name."','".$formula."');\">".$value."</a>";
1.133 matthew 2126: return $result;
2127: }
2128:
1.164 ! matthew 2129: sub html_uneditable_cell {
! 2130: my ($cell,$bgcolor) = @_;
! 2131: my $value = (defined($cell) ? $cell->{'value'} : '');
! 2132: $value = &HTML::Entities::encode($value) if ($value !~/ /);
! 2133: return ' '.$value.' ';
1.133 matthew 2134: }
2135:
1.164 ! matthew 2136: sub outsheet_html {
! 2137: my $self = shift;
! 2138: my ($r) = @_;
! 2139: my ($num_uneditable,$realm,$row_type);
! 2140: my $requester_is_student = ($ENV{'request.role'} =~ /^st\./);
! 2141: if ($self->{'type'} eq 'assesscalc') {
! 2142: $num_uneditable = 1;
! 2143: $realm = 'Assessment';
! 2144: $row_type = 'Item';
! 2145: } elsif ($self->{'type'} eq 'studentcalc') {
! 2146: $num_uneditable = 26;
! 2147: $realm = 'User';
! 2148: $row_type = 'Assessment';
! 2149: } elsif ($self->{'type'} eq 'classcalc') {
! 2150: $num_uneditable = 26;
! 2151: $realm = 'Course';
! 2152: $row_type = 'Student';
1.125 matthew 2153: } else {
1.164 ! matthew 2154: return; # error
! 2155: }
! 2156: ####################################
! 2157: # Print out header table
! 2158: ####################################
! 2159: my $num_left = 52-$num_uneditable;
! 2160: my $tabledata =<<"END";
! 2161: <table border="2">
! 2162: <tr>
! 2163: <th colspan="2" rowspan="2"><font size="+2">$realm</font></th>
! 2164: <td bgcolor="#FFDDDD" colspan="$num_uneditable">
! 2165: <b><font size="+1">Import</font></b></td>
! 2166: <td colspan="$num_left">
! 2167: <b><font size="+1">Calculations</font></b></td>
! 2168: </tr><tr>
! 2169: END
! 2170: my $label_num = 0;
! 2171: foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
! 2172: if ($label_num<$num_uneditable) {
! 2173: $tabledata.='<td bgcolor="#FFDDDD">';
! 2174: } else {
! 2175: $tabledata.='<td>';
! 2176: }
! 2177: $tabledata.="<b><font size=+1>$_</font></b></td>";
! 2178: $label_num++;
! 2179: }
! 2180: $tabledata.="</tr>\n";
! 2181: $r->print($tabledata);
! 2182: ####################################
! 2183: # Print out template row
! 2184: ####################################
! 2185: my ($num_cols_output,$row_html,$rowlabel,@rowdata);
! 2186:
! 2187: if (! $requester_is_student) {
! 2188: ($rowlabel,@rowdata) = $self->get_row('-');
! 2189: $row_html = '<tr><td>'.$self->format_html_rowlabel($rowlabel).'</td>';
! 2190: $num_cols_output = 0;
! 2191: foreach my $cell (@rowdata) {
! 2192: if ($requester_is_student ||
! 2193: $num_cols_output++ < $num_uneditable) {
! 2194: $row_html .= '<td bgcolor="#FFDDDD">';
! 2195: $row_html .= &html_uneditable_cell($cell,'#FFDDDD');
! 2196: } else {
! 2197: $row_html .= '<td bgcolor="#EOFFDD">';
! 2198: $row_html .= &html_editable_cell($cell,'#E0FFDD');
! 2199: }
! 2200: $row_html .= '</td>';
! 2201: }
! 2202: $row_html.= "</tr>\n";
! 2203: $r->print($row_html);
! 2204: }
! 2205: ####################################
! 2206: # Print out summary/export row
! 2207: ####################################
! 2208: ($rowlabel,@rowdata) = $self->get_row('0');
! 2209: $row_html = '<tr><td>'.$self->format_html_rowlabel($rowlabel).'</td>';
! 2210: $num_cols_output = 0;
! 2211: foreach my $cell (@rowdata) {
! 2212: if ($num_cols_output++ < 26 && ! $requester_is_student) {
! 2213: $row_html .= '<td bgcolor="#CCCCFF">';
! 2214: $row_html .= &html_editable_cell($cell,'#CCCCFF');
! 2215: } else {
! 2216: $row_html .= '<td bgcolor="#DDCCFF">';
! 2217: $row_html .= &html_uneditable_cell($cell,'#CCCCFF');
! 2218: }
! 2219: $row_html .= '</td>';
1.125 matthew 2220: }
1.164 ! matthew 2221: $row_html.= "</tr>\n";
! 2222: $r->print($row_html);
! 2223: $r->print('</table>');
! 2224: ####################################
! 2225: # Prepare to output rows
! 2226: ####################################
! 2227: my @Rows = $self->sort_indicies();
1.102 matthew 2228: #
1.164 ! matthew 2229: # Loop through the rows and output them one at a time
! 2230: my $rows_output=0;
! 2231: foreach my $rownum (@Rows) {
! 2232: my ($rowlabel,@rowdata) = $self->get_row($rownum);
! 2233: next if ($rowlabel =~ /^\s*$/);
! 2234: next if (($self->{'type'} eq 'assesscalc') &&
! 2235: (! $ENV{'form.showall'}) &&
! 2236: ($rowdata[0]->{'value'} =~ /^\s*$/));
! 2237: if (! $ENV{'form.showall'} &&
! 2238: $self->{'type'} =~ /^(studentcalc|classcalc)$/) {
! 2239: my $row_is_empty = 1;
! 2240: foreach my $cell (@rowdata) {
! 2241: if ($cell->{'value'} !~ /^\s*$/) {
! 2242: $row_is_empty = 0;
! 2243: last;
! 2244: }
! 2245: }
! 2246: next if ($row_is_empty);
! 2247: }
! 2248: #
! 2249: my $defaultbg='#E0FF';
! 2250: #
! 2251: my $row_html ="\n".'<tr><td><b><font size=+1>'.$rownum.
! 2252: '</font></b></td>';
! 2253: #
! 2254: if ($self->{'type'} eq 'classcalc') {
! 2255: $row_html.='<td>'.$self->format_html_rowlabel($rowlabel).'</td>';
! 2256: # Output links for each student?
! 2257: # Nope, that is already done for us in format_html_rowlabel
! 2258: # (for now)
! 2259: } elsif ($self->{'type'} eq 'studentcalc') {
! 2260: my $ufn = (split(/:/,$rowlabel))[5];
! 2261: $row_html.='<td>'.$self->format_html_rowlabel($rowlabel);
! 2262: $row_html.= '<br>'.
! 2263: '<select name="sel_'.$rownum.'" '.
! 2264: 'onChange="changesheet('.$rownum.')">'.
! 2265: '<option name="default">Default</option>';
! 2266: foreach (@{$self->{'othersheets'}}) {
! 2267: $row_html.='<option name="'.$_.'"';
! 2268: if ($ufn eq $_) {
! 2269: $row_html.=' selected';
! 2270: }
! 2271: $row_html.='>'.$_.'</option>';
! 2272: }
! 2273: $row_html.='</select></td>';
! 2274: } elsif ($self->{'type'} eq 'assesscalc') {
! 2275: $row_html.='<td>'.$self->format_html_rowlabel($rowlabel).'</td>';
! 2276: }
! 2277: #
! 2278: my $shown_cells = 0;
! 2279: foreach my $cell (@rowdata) {
! 2280: my $value = $cell->{'value'};
! 2281: my $formula = $cell->{'formula'};
! 2282: my $cellname = $cell->{'name'};
! 2283: #
! 2284: my $bgcolor;
! 2285: if ($shown_cells && ($shown_cells/5 == int($shown_cells/5))) {
! 2286: $bgcolor = $defaultbg.'99';
! 2287: } else {
! 2288: $bgcolor = $defaultbg.'DD';
! 2289: }
! 2290: $bgcolor='#FFDDDD' if ($shown_cells < $num_uneditable);
! 2291: #
! 2292: $row_html.='<td bgcolor='.$bgcolor.'>';
! 2293: if ($requester_is_student || $shown_cells < $num_uneditable) {
! 2294: $row_html .= &html_uneditable_cell($cell,$bgcolor);
! 2295: } else {
! 2296: $row_html .= &html_editable_cell($cell,$bgcolor);
! 2297: }
! 2298: $row_html.='</td>';
! 2299: $shown_cells++;
! 2300: }
! 2301: if ($row_html) {
! 2302: if ($rows_output % 25 == 0) {
! 2303: $r->print("</table>\n<br>\n");
! 2304: $r->rflush();
! 2305: $r->print('<table border=2>'.
! 2306: '<tr><td> <td>'.$row_type.'</td>'.
! 2307: '<td>'.
! 2308: join('</td><td>',
! 2309: (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.
! 2310: 'abcdefghijklmnopqrstuvwxyz'))).
! 2311: "</td></tr>\n");
! 2312: }
! 2313: $rows_output++;
! 2314: $r->print($row_html);
1.118 matthew 2315: }
2316: }
1.102 matthew 2317: #
1.164 ! matthew 2318: $r->print('</table>');
1.102 matthew 2319: #
1.164 ! matthew 2320: # Debugging code (be sure to uncomment errorlog code in safe space):
1.102 matthew 2321: #
1.164 ! matthew 2322: # $r->print("\n<pre>");
! 2323: # $r->print(&geterrorlog($self));
! 2324: # $r->print("\n</pre>");
! 2325: return 1;
! 2326: }
! 2327:
! 2328: ############################################
! 2329: ## csv output routines ##
! 2330: ############################################
! 2331: sub outsheet_csv {
! 2332: my $self = shift;
! 2333: my ($r) = @_;
! 2334: my $csvdata = '';
! 2335: my @Values;
! 2336: ####################################
! 2337: # Prepare to output rows
! 2338: ####################################
! 2339: my @Rows = $self->sort_indicies();
1.102 matthew 2340: #
1.164 ! matthew 2341: # Loop through the rows and output them one at a time
! 2342: my $rows_output=0;
! 2343: foreach my $rownum (@Rows) {
! 2344: my ($rowlabel,@rowdata) = $self->get_row($rownum);
! 2345: next if ($rowlabel =~ /^\s*$/);
! 2346: push (@Values,$self->format_csv_rowlabel($rowlabel));
! 2347: foreach my $cell (@rowdata) {
! 2348: push (@Values,'"'.$cell->{'value'}.'"');
1.78 matthew 2349: }
1.164 ! matthew 2350: $csvdata.= join(',',@Values)."\n";
! 2351: @Values = ();
1.102 matthew 2352: }
2353: #
1.164 ! matthew 2354: # Write the CSV data to a file and serve up a link
! 2355: #
! 2356: my $filename = '/prtspool/'.
! 2357: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
! 2358: time.'_'.rand(1000000000).'.csv';
! 2359: my $file;
! 2360: unless ($file = Apache::File->new('>'.'/home/httpd'.$filename)) {
! 2361: $r->log_error("Couldn't open $filename for output $!");
! 2362: $r->print("Problems occured in writing the csv file. ".
! 2363: "This error has been logged. ".
! 2364: "Please alert your LON-CAPA administrator.");
! 2365: $r->print("<pre>\n".$csvdata."</pre>\n");
! 2366: return 0;
1.119 matthew 2367: }
1.164 ! matthew 2368: print $file $csvdata;
! 2369: close($file);
! 2370: $r->print('<br /><br />'.
! 2371: '<a href="'.$filename.'">Your CSV spreadsheet.</a>'."\n");
1.102 matthew 2372: #
1.164 ! matthew 2373: return 1;
1.23 www 2374: }
1.5 www 2375:
1.164 ! matthew 2376: ############################################
! 2377: ## Excel output routines ##
! 2378: ############################################
! 2379: sub outsheet_recursive_excel {
! 2380: my $self = shift;
! 2381: my ($r) = @_;
! 2382: my $c = $r->connection;
! 2383: return undef if ($self->{'type'} ne 'classcalc');
! 2384: my ($workbook,$filename) = $self->create_excel_spreadsheet($r);
! 2385: return undef if (! defined($workbook));
1.136 matthew 2386: #
1.164 ! matthew 2387: # Create main worksheet
! 2388: my $main_worksheet = $workbook->addworksheet('main');
1.136 matthew 2389: #
1.164 ! matthew 2390: # Figure out who the students are
! 2391: my %f=$self->formulas();
! 2392: my $count = 0;
! 2393: $r->print(<<END);
! 2394: <p>
! 2395: Compiling Excel Workbook with a worksheet for each student.
! 2396: </p><p>
! 2397: This operation may take longer than a complete recalculation of the
! 2398: spreadsheet.
! 2399: </p><p>
! 2400: To abort this operation, hit the stop button on your browser.
! 2401: </p><p>
! 2402: A link to the spreadsheet will be available at the end of this process.
! 2403: </p>
! 2404: <p>
! 2405: END
! 2406: $r->rflush();
! 2407: my $starttime = time;
! 2408: foreach my $rownum ($self->sort_indicies()) {
! 2409: $count++;
! 2410: my ($sname,$sdom) = split(':',$f{'A'.$rownum});
! 2411: my $student_excel_worksheet=$workbook->addworksheet($sname.'@'.$sdom);
! 2412: # Create a new spreadsheet
! 2413: my $studentsheet = &Apache::lonspreadsheet::Spreadsheet->new
! 2414: ($sname,$sdom,'studentcalc',undef);
! 2415: # Read in the spreadsheet definition
! 2416: $studentsheet->update_student_sheet($r,$c);
! 2417: # Stuff the sheet into excel
! 2418: $studentsheet->export_sheet_as_excel($student_excel_worksheet);
! 2419: my $totaltime = int((time - $starttime) / $count * $self->{'maxrow'});
! 2420: my $timeleft = int((time - $starttime) / $count * ($self->{'maxrow'} - $count));
! 2421: if ($count % 5 == 0) {
! 2422: $r->print($count.' students completed.'.
! 2423: ' Time remaining: '.$timeleft.' sec. '.
! 2424: ' Estimated total time: '.$totaltime." sec <br />\n");
! 2425: $r->rflush();
! 2426: }
! 2427: if(defined($c) && ($c->aborted())) {
! 2428: last;
! 2429: }
! 2430: }
1.136 matthew 2431: #
1.164 ! matthew 2432: if(! $c->aborted() ) {
! 2433: $r->print('All students spreadsheets completed!<br />');
! 2434: $r->rflush();
1.136 matthew 2435: #
1.164 ! matthew 2436: # &export_sheet_as_excel fills $worksheet with the data from $sheet
! 2437: $self->export_sheet_as_excel($main_worksheet);
1.136 matthew 2438: #
1.164 ! matthew 2439: $workbook->close();
! 2440: # Okay, the spreadsheet is taken care of, so give the user a link.
! 2441: $r->print('<br /><br />'.
! 2442: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
! 2443: } else {
! 2444: $workbook->close(); # Not sure how necessary this is.
! 2445: #unlink('/home/httpd'.$filename); # No need to keep this around?
1.136 matthew 2446: }
1.164 ! matthew 2447: return 1;
! 2448: }
1.136 matthew 2449:
1.164 ! matthew 2450: sub outsheet_excel {
! 2451: my $self = shift;
! 2452: my ($r) = @_;
! 2453: my ($workbook,$filename) = $self->create_excel_spreadsheet($r);
! 2454: return undef if (! defined($workbook));
! 2455: my $sheetname;
! 2456: if ($self->{'type'} eq 'classcalc') {
! 2457: $sheetname = 'Main';
! 2458: } elsif ($self->{'type'} eq 'studentcalc') {
! 2459: $sheetname = $self->{'uname'}.'@'.$self->{'udom'};
! 2460: } elsif ($self->{'type'} eq 'assesscalc') {
! 2461: $sheetname = $self->{'uname'}.'@'.$self->{'udom'}.' assessment';
! 2462: }
! 2463: my $worksheet = $workbook->addworksheet($sheetname);
! 2464: #
! 2465: # &export_sheet_as_excel fills $worksheet with the data from $sheet
! 2466: $self->export_sheet_as_excel($worksheet);
! 2467: #
! 2468: $workbook->close();
! 2469: # Okay, the spreadsheet is taken care of, so give the user a link.
! 2470: $r->print('<br /><br />'.
! 2471: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
! 2472: return 1;
1.136 matthew 2473: }
2474:
1.164 ! matthew 2475: sub create_excel_spreadsheet {
! 2476: my $self = shift;
! 2477: my ($r) = @_;
! 2478: my $filename = '/prtspool/'.
! 2479: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
! 2480: time.'_'.rand(1000000000).'.xls';
! 2481: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
! 2482: if (! defined($workbook)) {
! 2483: $r->log_error("Error creating excel spreadsheet $filename: $!");
! 2484: $r->print("Problems creating new Excel file. ".
! 2485: "This error has been logged. ".
! 2486: "Please alert your LON-CAPA administrator");
! 2487: return undef;
! 2488: }
1.128 matthew 2489: #
1.164 ! matthew 2490: # The excel spreadsheet stores temporary data in files, then put them
! 2491: # together. If needed we should be able to disable this (memory only).
! 2492: # The temporary directory must be specified before calling 'addworksheet'.
! 2493: # File::Temp is used to determine the temporary directory.
! 2494: $workbook->set_tempdir('/home/httpd/perl/tmp');
1.128 matthew 2495: #
1.164 ! matthew 2496: # Determine the name to give the worksheet
! 2497: return ($workbook,$filename);
! 2498: }
! 2499:
! 2500: sub export_sheet_as_excel {
! 2501: my $self = shift;
! 2502: my $worksheet = shift;
1.136 matthew 2503: #
1.164 ! matthew 2504: my $rows_output = 0;
! 2505: my $cols_output = 0;
! 2506: ####################################
! 2507: # Write an identifying row #
! 2508: ####################################
! 2509: my @Headerinfo = ($self->{'coursedesc'});
! 2510: my $title = $self->gettitle();
! 2511: $cols_output = 0;
! 2512: if (defined($title)) {
! 2513: $worksheet->write($rows_output++,$cols_output++,$title);
! 2514: }
! 2515: ####################################
! 2516: # Write the summary/export row #
! 2517: ####################################
! 2518: my ($rowlabel,@rowdata) = &get_row($self,'0');
! 2519: my $label = &format_excel_rowlabel($self,$rowlabel);
! 2520: $cols_output = 0;
! 2521: $worksheet->write($rows_output,$cols_output++,$label);
! 2522: foreach my $cell (@rowdata) {
! 2523: $worksheet->write($rows_output,$cols_output++,$cell->{'value'});
! 2524: }
! 2525: $rows_output+= 2; # Skip a row, just for fun
! 2526: ####################################
! 2527: # Prepare to output rows
! 2528: ####################################
! 2529: my @Rows = &sort_indicies($self);
1.136 matthew 2530: #
1.164 ! matthew 2531: # Loop through the rows and output them one at a time
! 2532: foreach my $rownum (@Rows) {
! 2533: my ($rowlabel,@rowdata) = &get_row($self,$rownum);
! 2534: next if ($rowlabel =~ /^[\s]*$/);
! 2535: $cols_output = 0;
! 2536: my $label = &format_excel_rowlabel($self,$rowlabel);
! 2537: if ( ! $ENV{'form.showall'} &&
! 2538: $self->{'type'} =~ /^(studentcalc|classcalc)$/) {
! 2539: my $row_is_empty = 1;
! 2540: foreach my $cell (@rowdata) {
! 2541: if ($cell->{'value'} !~ /^\s*$/) {
! 2542: $row_is_empty = 0;
! 2543: last;
! 2544: }
! 2545: }
! 2546: next if ($row_is_empty);
! 2547: }
! 2548: $worksheet->write($rows_output,$cols_output++,$label);
! 2549: if (ref($label)) {
! 2550: $cols_output = (scalar(@$label));
1.104 matthew 2551: }
1.164 ! matthew 2552: foreach my $cell (@rowdata) {
! 2553: $worksheet->write($rows_output,$cols_output++,$cell->{'value'});
1.136 matthew 2554: }
1.164 ! matthew 2555: $rows_output++;
1.136 matthew 2556: }
1.164 ! matthew 2557: return;
1.136 matthew 2558: }
2559:
1.164 ! matthew 2560: ############################################
! 2561: ## XML output routines ##
! 2562: ############################################
! 2563: sub outsheet_xml {
! 2564: my $self = shift;
! 2565: my ($r) = @_;
! 2566: ## Someday XML
! 2567: ## Will be rendered for the user
! 2568: ## But not on this day
1.5 www 2569: }
1.3 www 2570:
1.164 ! matthew 2571: ##
! 2572: ## Outsheet - calls other outsheet_* functions
! 2573: ##
! 2574: sub outsheet {
! 2575: my $self = shift;
! 2576: my ($r)=@_;
! 2577: if (! exists($ENV{'form.output'})) {
! 2578: $ENV{'form.output'} = 'HTML';
1.39 www 2579: }
1.164 ! matthew 2580: if (lc($ENV{'form.output'}) eq 'csv') {
! 2581: $self->outsheet_csv($r);
! 2582: } elsif (lc($ENV{'form.output'}) eq 'excel') {
! 2583: $self->outsheet_excel($r);
! 2584: } elsif (lc($ENV{'form.output'}) eq 'recursive excel') {
! 2585: $self->outsheet_recursive_excel($r);
! 2586: # } elsif (lc($ENV{'form.output'}) eq 'xml' ) {
! 2587: # $self->outsheet_xml($r);
! 2588: } else {
! 2589: $self->outsheet_html($r);
1.78 matthew 2590: }
1.16 www 2591: }
2592:
1.109 matthew 2593: #
1.164 ! matthew 2594: # othersheets: Returns the list of other spreadsheets available
! 2595: #
! 2596: sub othersheets {
! 2597: my $self = shift;
! 2598: my ($stype)=@_;
! 2599: $stype = $self->{'type'} if (! defined($stype));
! 2600: #
! 2601: my $cnum = $self->{'cnum'};
! 2602: my $cdom = $self->{'cdom'};
! 2603: my $chome = $self->{'chome'};
1.135 matthew 2604: #
1.164 ! matthew 2605: my @alternatives=();
! 2606: my %results=&Apache::lonnet::dump($stype.'_spreadsheets',$cdom,$cnum);
! 2607: my ($tmp) = keys(%results);
! 2608: unless ($tmp =~ /^(con_lost|error|no_such_host)/i) {
! 2609: @alternatives = sort (keys(%results));
1.78 matthew 2610: }
1.164 ! matthew 2611: return @alternatives;
1.24 www 2612: }
2613:
1.109 matthew 2614: #
1.164 ! matthew 2615: # Parse a spreadsheet
! 2616: #
! 2617: sub parse_sheet {
! 2618: # $sheetxml is a scalar reference or a scalar
! 2619: my ($sheetxml) = @_;
! 2620: if (! ref($sheetxml)) {
! 2621: my $tmp = $sheetxml;
! 2622: $sheetxml = \$tmp;
! 2623: }
! 2624: my %f;
! 2625: my $parser=HTML::TokeParser->new($sheetxml);
! 2626: my $token;
! 2627: while ($token=$parser->get_token) {
! 2628: if ($token->[0] eq 'S') {
! 2629: if ($token->[1] eq 'field') {
! 2630: $f{$token->[2]->{'col'}.$token->[2]->{'row'}}=
! 2631: $parser->get_text('/field');
! 2632: }
! 2633: if ($token->[1] eq 'template') {
! 2634: $f{'template_'.$token->[2]->{'col'}}=
! 2635: $parser->get_text('/template');
! 2636: }
1.104 matthew 2637: }
1.6 www 2638: }
1.164 ! matthew 2639: return \%f;
! 2640: }
! 2641:
! 2642: sub readsheet {
! 2643: my $self = shift;
! 2644: my ($fn)=@_;
1.109 matthew 2645: #
1.164 ! matthew 2646: my $stype = $self->{'type'};
! 2647: my $cnum = $self->{'cnum'};
! 2648: my $cdom = $self->{'cdom'};
! 2649: my $chome = $self->{'chome'};
1.109 matthew 2650: #
1.164 ! matthew 2651: if (! defined($fn)) {
! 2652: # There is no filename. Look for defaults in course and global, cache
! 2653: unless ($fn=$defaultsheets{$cnum.'_'.$cdom.'_'.$stype}) {
! 2654: my %tmphash = &Apache::lonnet::get('environment',
! 2655: ['spreadsheet_default_'.$stype],
! 2656: $cdom,$cnum);
! 2657: my ($tmp) = keys(%tmphash);
! 2658: if ($tmp =~ /^(con_lost|error|no_such_host)/i) {
! 2659: $fn = 'default_'.$stype;
! 2660: } else {
! 2661: $fn = $tmphash{'spreadsheet_default_'.$stype};
! 2662: }
! 2663: unless (($fn) && ($fn!~/^error\:/)) {
! 2664: $fn='default_'.$stype;
! 2665: }
! 2666: $defaultsheets{$cnum.'_'.$cdom.'_'.$stype}=$fn;
1.104 matthew 2667: }
1.29 www 2668: }
1.164 ! matthew 2669: # $fn now has a value
! 2670: $self->{'filename'} = $fn;
! 2671: # see if sheet is cached
! 2672: my $fstring='';
! 2673: if ($fstring=$spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}) {
! 2674: my %tmp = split(/___;___/,$fstring);
! 2675: $self->formulas(\%tmp);
! 2676: # $self->logthis('readsheet found cached ');
! 2677: # $self->dump_formulas_to_log();
! 2678: } else {
! 2679: # Not cached, need to read
! 2680: my %f=();
! 2681: if ($fn=~/^default\_/) {
! 2682: my $sheetxml='';
! 2683: my $fh;
! 2684: my $dfn=$fn;
! 2685: $dfn=~s/\_/\./g;
! 2686: if ($fh=Apache::File->new($includedir.'/'.$dfn)) {
! 2687: $sheetxml=join('',<$fh>);
! 2688: } else {
! 2689: # $sheetxml='<field row="0" col="A">"Error"</field>';
! 2690: $sheetxml='<field row="0" col="A"></field>';
! 2691: }
! 2692: %f=%{&parse_sheet(\$sheetxml)};
! 2693: } elsif($fn=~/\/*\.spreadsheet$/) {
! 2694: my $sheetxml=&Apache::lonnet::getfile
! 2695: (&Apache::lonnet::filelocation('',$fn));
! 2696: if ($sheetxml == -1) {
! 2697: $sheetxml='<field row="0" col="A">"Error loading spreadsheet '
! 2698: .$fn.'"</field>';
! 2699: }
! 2700: %f=%{&parse_sheet(\$sheetxml)};
! 2701: } else {
! 2702: my %tmphash = &Apache::lonnet::dump($fn,$cdom,$cnum);
! 2703: my ($tmp) = keys(%tmphash);
! 2704: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
! 2705: foreach (keys(%tmphash)) {
! 2706: $f{$_}=$tmphash{$_};
! 2707: }
! 2708: } else {
! 2709: # Unable to grab the specified spreadsheet,
! 2710: # so we get the default ones instead.
! 2711: $fn = 'default_'.$stype;
! 2712: $self->{'filename'} = $fn;
! 2713: my $dfn = $fn;
! 2714: $dfn =~ s/\_/\./g;
! 2715: my $sheetxml;
! 2716: if (my $fh=Apache::File->new($includedir.'/'.$dfn)) {
! 2717: $sheetxml = join('',<$fh>);
! 2718: } else {
! 2719: $sheetxml='<field row="0" col="A">'.
! 2720: '"Unable to load spreadsheet"</field>';
1.104 matthew 2721: }
1.164 ! matthew 2722: %f=%{&parse_sheet(\$sheetxml)};
1.104 matthew 2723: }
1.6 www 2724: }
1.164 ! matthew 2725: # Cache and set
! 2726: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
! 2727: $self->formulas(\%f);
! 2728: # $self->logthis('readsheet loaded ');
! 2729: # $self->dump_formulas_to_log();
1.78 matthew 2730: }
1.6 www 2731: }
2732:
1.164 ! matthew 2733: # ------------------------------------------------------------ Save spreadsheet
! 2734: sub writesheet {
! 2735: my $self = shift;
! 2736: my ($makedef)=@_;
! 2737: my $cid=$self->{'cid'};
! 2738: if (&Apache::lonnet::allowed('opa',$cid)) {
! 2739: my %f=$self->formulas();
! 2740: my $stype= $self->{'type'};
! 2741: my $cnum = $self->{'cnum'};
! 2742: my $cdom = $self->{'cdom'};
! 2743: my $chome= $self->{'chome'};
! 2744: my $fn = $self->{'filename'};
! 2745: # Cache new sheet
! 2746: $spreadsheets{$cnum.'_'.$cdom.'_'.$stype.'_'.$fn}=join('___;___',%f);
! 2747: # Write sheet
! 2748: foreach (keys(%f)) {
! 2749: delete($f{$_}) if ($f{$_} eq 'import');
! 2750: }
! 2751: my $reply = &Apache::lonnet::put($fn,\%f,$cdom,$cnum);
! 2752: if ($reply eq 'ok') {
! 2753: $reply = &Apache::lonnet::put($stype.'_spreadsheets',
! 2754: {$fn => $ENV{'user.name'}.'@'.$ENV{'user.domain'}},
! 2755: $cdom,$cnum);
! 2756: if ($reply eq 'ok') {
! 2757: if ($makedef) {
! 2758: $reply = &Apache::lonnet::put('environment',
! 2759: {'spreadsheet_default_'.$stype => $fn },
! 2760: $cdom,$cnum);
! 2761: if ($reply eq 'ok' &&
! 2762: ($self->{'type'} eq 'studentcalc' ||
! 2763: $self->{'type'} eq 'assesscalc')) {
! 2764: # Expire the spreadsheets of the other students.
! 2765: &Apache::lonnet::expirespread('','','studentcalc','');
! 2766: }
! 2767: return $reply;
! 2768: }
! 2769: return $reply;
! 2770: }
! 2771: return $reply;
! 2772: }
! 2773: return $reply;
! 2774: }
! 2775: return 'unauthorized';
1.10 www 2776: }
2777:
1.164 ! matthew 2778: # ----------------------------------------------- Make a temp copy of the sheet
! 2779: # "Modified workcopy" - interactive only
! 2780: #
! 2781: sub tmpwrite {
! 2782: my $self = shift;
! 2783: my $fn=$ENV{'user.name'}.'_'.
! 2784: $ENV{'user.domain'}.'_spreadsheet_'.$self->{'usymb'}.'_'.
! 2785: $self->{'filename'};
! 2786: $fn=~s/\W/\_/g;
! 2787: $fn=$tmpdir.$fn.'.tmp';
! 2788: my $fh;
! 2789: if ($fh=Apache::File->new('>'.$fn)) {
! 2790: my %f = $self->formulas();
! 2791: while( my ($cell,$formula) = each(%f)) {
! 2792: print $fh &Apache::lonnet::escape($cell)."=".&Apache::lonnet::escape($formula)."\n";
! 2793: }
1.78 matthew 2794: }
1.10 www 2795: }
2796:
1.28 www 2797:
1.164 ! matthew 2798: # ---------------------------------------------------------- Read the temp copy
! 2799: sub tmpread {
! 2800: my $self = shift;
! 2801: my ($nfield,$nform)=@_;
! 2802: my $fn=$ENV{'user.name'}.'_'.
! 2803: $ENV{'user.domain'}.'_spreadsheet_'.$self->{'usymb'}.'_'.
! 2804: $self->{'filename'};
! 2805: $fn=~s/\W/\_/g;
! 2806: $fn=$tmpdir.$fn.'.tmp';
! 2807: my $fh;
! 2808: my %fo=();
! 2809: my $countrows=0;
! 2810: if ($fh=Apache::File->new($fn)) {
! 2811: while (<$fh>) {
! 2812: chomp;
! 2813: my ($cell,$formula) = split(/=/);
! 2814: $cell = &Apache::lonnet::unescape($cell);
! 2815: $formula = &Apache::lonnet::unescape($formula);
! 2816: $fo{$cell} = $formula;
! 2817: }
! 2818: }
! 2819: if ($nform eq 'changesheet') {
! 2820: $fo{'A'.$nfield}=(split(/__&&&\__/,$fo{'A'.$nfield}))[0];
! 2821: unless ($ENV{'form.sel_'.$nfield} eq 'Default') {
! 2822: $fo{'A'.$nfield}.='__&&&__'.$ENV{'form.sel_'.$nfield};
! 2823: }
1.28 www 2824: } else {
1.164 ! matthew 2825: if ($nfield) { $fo{$nfield}=$nform; }
1.28 www 2826: }
1.164 ! matthew 2827: $self->formulas(\%fo);
1.28 www 2828: }
2829:
1.164 ! matthew 2830: ##################################################################
! 2831: ## Row label formatting routines ##
! 2832: ##################################################################
! 2833: sub format_html_rowlabel {
! 2834: my $self = shift;
! 2835: my $rowlabel = shift;
! 2836: return '' if ($rowlabel eq '');
! 2837: my ($type,$labeldata) = split(':',$rowlabel,2);
! 2838: my $result = '';
! 2839: if ($type eq 'symb') {
! 2840: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
! 2841: $ufn = 'default' if (!defined($ufn) || $ufn eq '');
! 2842: $ufn = &Apache::lonnet::unescape($ufn);
! 2843: $symb = &Apache::lonnet::unescape($symb);
! 2844: $title = &Apache::lonnet::unescape($title);
! 2845: $result = '<a href="/adm/assesscalc?usymb='.$symb.
! 2846: '&uname='.$self->{'uname'}.'&udom='.$self->{'udom'}.
! 2847: '&ufn='.$ufn.
! 2848: '&mapid='.$mapid.'&resid='.$resid.'">'.$title.'</a>';
! 2849: } elsif ($type eq 'student') {
! 2850: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
! 2851: if ($fullname =~ /^\s*$/) {
! 2852: $fullname = $sname.'@'.$sdom;
! 2853: }
! 2854: $result ='<a href="/adm/studentcalc?uname='.$sname.
! 2855: '&udom='.$sdom.'">';
! 2856: $result.=$section.' '.$id." ".$fullname.'</a>';
! 2857: } elsif ($type eq 'parameter') {
! 2858: $result = $labeldata;
1.28 www 2859: } else {
1.164 ! matthew 2860: $result = '<b><font size=+1>'.$rowlabel.'</font></b>';
1.28 www 2861: }
1.164 ! matthew 2862: return $result;
1.28 www 2863: }
2864:
1.164 ! matthew 2865: sub format_csv_rowlabel {
! 2866: my $self = shift;
! 2867: my $rowlabel = shift;
! 2868: return '' if ($rowlabel eq '');
! 2869: my ($type,$labeldata) = split(':',$rowlabel,2);
! 2870: my $result = '';
! 2871: if ($type eq 'symb') {
! 2872: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
! 2873: $ufn = &Apache::lonnet::unescape($ufn);
! 2874: $symb = &Apache::lonnet::unescape($symb);
! 2875: $title = &Apache::lonnet::unescape($title);
! 2876: $result = $title;
! 2877: } elsif ($type eq 'student') {
! 2878: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
! 2879: $result = join('","',($sname,$sdom,$fullname,$section,$id));
! 2880: } elsif ($type eq 'parameter') {
! 2881: $labeldata =~ s/<br>/ /g;
! 2882: $result = $labeldata;
1.144 matthew 2883: } else {
1.164 ! matthew 2884: $result = $rowlabel;
1.144 matthew 2885: }
1.164 ! matthew 2886: return '"'.$result.'"';
1.47 www 2887: }
1.104 matthew 2888:
1.164 ! matthew 2889: sub format_excel_rowlabel {
! 2890: my $self = shift;
! 2891: my $rowlabel = shift;
! 2892: return '' if ($rowlabel eq '');
! 2893: my ($type,$labeldata) = split(':',$rowlabel,2);
! 2894: my $result = '';
! 2895: if ($type eq 'symb') {
! 2896: my ($symb,$mapid,$resid,$title,$ufn) = split(':',$labeldata);
! 2897: $ufn = &Apache::lonnet::unescape($ufn);
! 2898: $symb = &Apache::lonnet::unescape($symb);
! 2899: $title = &Apache::lonnet::unescape($title);
! 2900: $result = $title;
! 2901: } elsif ($type eq 'student') {
! 2902: my ($sname,$sdom,$fullname,$section,$id) = split(':',$labeldata);
! 2903: $section = '' if (! defined($section));
! 2904: $id = '' if (! defined($id));
! 2905: my @Data = ($sname,$sdom,$fullname,$section,$id);
! 2906: $result = \@Data;
! 2907: } elsif ($type eq 'parameter') {
! 2908: $labeldata =~ s/<br>/ /g;
! 2909: $result = $labeldata;
1.47 www 2910: } else {
1.164 ! matthew 2911: $result = $rowlabel;
1.47 www 2912: }
1.164 ! matthew 2913: return $result;
1.47 www 2914: }
2915:
1.164 ! matthew 2916: # ---------------------------------------------- Update rows for course listing
! 2917: sub updateclasssheet {
! 2918: my $self = shift;
! 2919: my $cnum =$self->{'cnum'};
! 2920: my $cdom =$self->{'cdom'};
! 2921: my $cid =$self->{'cid'};
! 2922: my $chome =$self->{'chome'};
! 2923: #
! 2924: %Section = ();
1.104 matthew 2925: #
1.164 ! matthew 2926: # Read class list and row labels
! 2927: my $classlist = &Apache::loncoursedata::get_classlist();
! 2928: if (! defined($classlist)) {
! 2929: return 'Could not access course classlist';
! 2930: }
1.104 matthew 2931: #
1.164 ! matthew 2932: my %currentlist=();
! 2933: foreach my $student (keys(%$classlist)) {
! 2934: my ($studentDomain,$studentName,$end,$start,$id,$studentSection,
! 2935: $fullname,$status) = @{$classlist->{$student}};
! 2936: $Section{$studentName.':'.$studentDomain} = $studentSection;
! 2937: if ($ENV{'form.Status'} eq $status || $ENV{'form.Status'} eq 'Any') {
! 2938: $currentlist{$student}=join(':',('student',$studentName,
! 2939: $studentDomain,$fullname,
! 2940: $studentSection,$id));
1.104 matthew 2941: }
1.44 www 2942: }
1.104 matthew 2943: #
1.164 ! matthew 2944: # Find discrepancies between the course row table and this
! 2945: #
! 2946: my %f=$self->formulas();
! 2947: my $changed=0;
! 2948: #
! 2949: $self->{'maxrow'}=0;
! 2950: my %existing=();
1.104 matthew 2951: #
1.164 ! matthew 2952: # Now obsolete rows
! 2953: foreach my $cell ($self->A_column()) {
! 2954: $cell =~ /^A(\d+)/;
! 2955: if ($1 > $self->{'maxrow'}) {
! 2956: $self->{'maxrow'}= $1;
! 2957: }
! 2958: $existing{$f{$cell}}=1;
! 2959: unless ((defined($currentlist{$f{$cell}})) || (!$1) ||
! 2960: ($f{$cell}=~/^(~~~|---)/)) {
! 2961: $f{$cell}='!!! Obsolete';
! 2962: $changed=1;
1.104 matthew 2963: }
2964: }
1.164 ! matthew 2965: #
! 2966: # New and unknown keys
! 2967: foreach my $student (sort keys(%currentlist)) {
! 2968: next if ($existing{$student});
! 2969: $changed=1;
! 2970: $self->{'maxrow'}++;
! 2971: $f{'A'.$self->{'maxrow'}}=$student;
1.120 matthew 2972: }
1.164 ! matthew 2973: $self->formulas(\%f) if ($changed);
! 2974: #
! 2975: $self->rowlabels(\%currentlist);
! 2976: }
! 2977:
! 2978: # ----------------------------------- Update rows for student and assess sheets
! 2979: sub get_student_rowlabels {
! 2980: my $self = shift;
1.120 matthew 2981: #
1.164 ! matthew 2982: my %course_db;
1.135 matthew 2983: #
1.164 ! matthew 2984: my $stype = $self->{'type'};
! 2985: my $uname = $self->{'uname'};
! 2986: my $udom = $self->{'udom'};
1.120 matthew 2987: #
1.164 ! matthew 2988: $self->{'rowlabel'} = {};
1.120 matthew 2989: #
1.164 ! matthew 2990: my $identifier =$self->{'coursefilename'}.'_'.$stype;
! 2991: if ($rowlabel_cache{$identifier}) {
! 2992: %{$self->{'rowlabel'}}=split(/___;___/,$rowlabel_cache{$identifier});
! 2993: } else {
! 2994: # Get the data and store it in the cache
! 2995: # Tie hash
! 2996: tie(%course_db,'GDBM_File',$self->{'coursefilename'}.'.db',
! 2997: &GDBM_READER(),0640);
! 2998: if (! tied(%course_db)) {
! 2999: return 'Could not access course data';
! 3000: }
! 3001: #
! 3002: my %assesslist = ();
! 3003: foreach ('Feedback','Evaluation','Tutoring','Discussion') {
! 3004: my $symb = '_'.lc($_);
! 3005: $assesslist{$symb} = join(':',('symb',$symb,0,0,
! 3006: &Apache::lonnet::escape($_)));
1.131 matthew 3007: }
1.164 ! matthew 3008: #
! 3009: while (my ($key,$srcf) = each(%course_db)) {
! 3010: next if ($key !~ /^src_(\d+)\.(\d+)$/);
! 3011: my $mapid = $1;
! 3012: my $resid = $2;
! 3013: my $id = $mapid.'.'.$resid;
! 3014: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
! 3015: my $symb=
! 3016: &Apache::lonnet::declutter($course_db{'map_id_'.$mapid}).
! 3017: '___'.$resid.'___'.&Apache::lonnet::declutter($srcf);
! 3018: $assesslist{$symb} ='symb:'.&Apache::lonnet::escape($symb).':'
! 3019: .$mapid.':'.$resid.':'.
! 3020: &Apache::lonnet::escape($course_db{'title_'.$id});
1.145 matthew 3021: }
1.120 matthew 3022: }
1.164 ! matthew 3023: untie(%course_db);
! 3024: # Store away the data
! 3025: $self->{'rowlabel'} = \%assesslist;
! 3026: $rowlabel_cache{$identifier}=join('___;___',%{$self->{'rowlabel'}});
1.120 matthew 3027: }
1.164 ! matthew 3028:
! 3029: }
! 3030:
! 3031: sub get_assess_rowlabels {
! 3032: my $self = shift;
1.131 matthew 3033: #
1.164 ! matthew 3034: my %course_db;
1.131 matthew 3035: #
1.164 ! matthew 3036: my $stype = $self->{'type'};
! 3037: my $uname = $self->{'uname'};
! 3038: my $udom = $self->{'udom'};
! 3039: my $usymb = $self->{'usymb'};
1.120 matthew 3040: #
1.164 ! matthew 3041: $self->rowlabels({});
! 3042: my $identifier =$self->{'coursefilename'}.'_'.$stype.'_'.$usymb;
1.131 matthew 3043: #
1.164 ! matthew 3044: if ($rowlabel_cache{$identifier}) {
! 3045: $self->rowlabels(split(/___;___/,$rowlabel_cache{$identifier}));
! 3046: } else {
! 3047: # Get the data and store it in the cache
! 3048: # Tie hash
! 3049: tie(%course_db,'GDBM_File',$self->{'coursefilename'}.'.db',
! 3050: &GDBM_READER(),0640);
! 3051: if (! tied(%course_db)) {
! 3052: return 'Could not access course data';
! 3053: }
! 3054: #
! 3055: my %parameter_labels=
! 3056: ('timestamp' =>
! 3057: 'parameter:Timestamp of Last Transaction<br>timestamp',
! 3058: 'subnumber' =>
! 3059: 'parameter:Number of Submissions<br>subnumber',
! 3060: 'tutornumber' =>
! 3061: 'parameter:Number of Tutor Responses<br>tutornumber',
! 3062: 'totalpoints' =>
! 3063: 'parameter:Total Points Granted<br>totalpoints');
! 3064: while (my ($key,$srcf) = each(%course_db)) {
! 3065: next if ($key !~ /^src_(\d+)\.(\d+)$/);
! 3066: my $mapid = $1;
! 3067: my $resid = $2;
! 3068: my $id = $mapid.'.'.$resid;
! 3069: if ($srcf=~/\.(problem|exam|quiz|assess|survey|form)$/) {
! 3070: # Loop through the metadata for this key
! 3071: my @Metadata = split(/,/,
! 3072: &Apache::lonnet::metadata($srcf,'keys'));
! 3073: foreach my $key (@Metadata) {
! 3074: next if ($key !~ /^(stores|parameter)_/);
! 3075: my $display=
! 3076: &Apache::lonnet::metadata($srcf,$key.'.display');
! 3077: unless ($display) {
! 3078: $display.=
! 3079: &Apache::lonnet::metadata($srcf,$key.'.name');
! 3080: }
! 3081: $display.='<br>'.$key;
! 3082: $parameter_labels{$key}='parameter:'.$display;
! 3083: } # end of foreach
! 3084: }
! 3085: }
! 3086: untie(%course_db);
! 3087: # Store away the results
! 3088: $self->rowlabels(\%parameter_labels);
! 3089: $rowlabel_cache{$identifier}=join('___;___',$self->rowlabels());
1.120 matthew 3090: }
1.164 ! matthew 3091:
! 3092: }
! 3093:
! 3094: sub updatestudentassesssheet {
! 3095: my $self = shift;
! 3096: if ($self->{'type'} eq 'studentcalc') {
! 3097: $self->get_student_rowlabels();
1.144 matthew 3098: } else {
1.164 ! matthew 3099: $self->get_assess_rowlabels();
! 3100: }
! 3101: # Determine if any of the information has changed
! 3102: my %f=$self->formulas();
! 3103: my $changed=0;
! 3104: $self->{'maxrow'} = 0;
! 3105: my %existing=();
! 3106: # Now obsolete rows
! 3107: foreach my $cell ($self->A_column()) {
! 3108: my $formula = $f{$cell};
! 3109: my ($n)= ($cell =~ /A(\d+)/);
! 3110: next if ($n eq '0');
! 3111: $self->{'maxrow'} = $n if ($n > $self->{'maxrow'});
! 3112: my ($usy,$ufn)=split(/__&&&\__/,$formula);
! 3113: $existing{$usy}=1;
! 3114: if ( ! exists($self->{'rowlabel'}->{$usy}) ||
! 3115: ! defined($self->{'rowlabel'}->{$usy}) ||
! 3116: ($formula =~ /^(~~~|---)/) ||
! 3117: ($formula =~ /^\s*$/)) {
! 3118: $f{$cell}='!!! Obsolete';
! 3119: # $self->logthis('obsoleted row '.$n);
! 3120: $changed=1;
! 3121: }
! 3122: }
! 3123: # New and unknown keys
! 3124: my %keys_hates_me = $self->rowlabels();
! 3125: foreach (keys(%keys_hates_me)) {
! 3126: unless ($existing{$_}) {
! 3127: $changed=1;
! 3128: $self->{'maxrow'}++;
! 3129: $f{'A'.$self->{'maxrow'}}=$_;
! 3130: }
1.78 matthew 3131: }
1.164 ! matthew 3132: $self->formulas(\%f) if ($changed);
! 3133: # $self->dump_formulas_to_log();
1.44 www 3134: }
1.104 matthew 3135:
1.164 ! matthew 3136: # ------------------------------------------------ Load data for one assessment
! 3137: sub loadstudent{
! 3138: my $self = shift;
! 3139: my ($r,$c)=@_;
! 3140: my %constants = ();
! 3141: my %formulas = $self->formulas();
! 3142: $cachedassess = $self->{'uname'}.':'.$self->{'udom'};
! 3143: # Get ALL the student preformance data
! 3144: my @tmp = &Apache::lonnet::currentdump($self->{'cid'},
! 3145: $self->{'udom'},
! 3146: $self->{'uname'});
! 3147: if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
! 3148: %cachedstores = @tmp;
! 3149: }
! 3150: undef @tmp;
! 3151: #
! 3152: my @assessdata=();
! 3153: foreach my $cell ($self->A_column()) {
! 3154: my $value = $formulas{$cell};
! 3155: if(defined($c) && ($c->aborted())) {
! 3156: last;
! 3157: }
! 3158: my ($row)=($cell=~/A(\d+)/);
! 3159: next if (($value =~ /^[!~-]/) || ($row==0));
! 3160: my ($usy,$ufn)=split(/__&&&\__/,$value);
! 3161: @assessdata=$self->exportsheet($self->{'uname'},
! 3162: $self->{'udom'},
! 3163: 'assesscalc',$usy,$ufn,$r);
! 3164: my $index=0;
! 3165: foreach my $col ('A','B','C','D','E','F','G','H','I','J','K','L','M',
! 3166: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
! 3167: if (defined($assessdata[$index])) {
! 3168: if ($assessdata[$index]=~/\D/) {
! 3169: $constants{$col.$row}="'".$assessdata[$index]."'";
! 3170: } else {
! 3171: $constants{$col.$row}=$assessdata[$index];
! 3172: }
! 3173: $formulas{$col.$row}='import' if ($col ne 'A');
! 3174: }
! 3175: $index++;
! 3176: }
1.48 www 3177: }
1.164 ! matthew 3178: $cachedassess='';
! 3179: undef %cachedstores;
! 3180: $self->formulas(\%formulas);
! 3181: $self->constants(\%constants);
1.48 www 3182: }
1.44 www 3183:
1.164 ! matthew 3184: # --------------------------------------------------- Load data for one student
1.44 www 3185: #
1.164 ! matthew 3186: sub loadcourse {
! 3187: my $self = shift;
! 3188: my ($r,$c)=@_;
! 3189: #
! 3190: my %constants=();
! 3191: my %formulas=$self->formulas();
! 3192: #
! 3193: my $total=0;
! 3194: foreach ($self->A_column()) {
! 3195: $total++ if ($formulas{$_} !~ /^[!~-]/);
! 3196: }
! 3197: my $now=0;
! 3198: my $since=time;
! 3199: $r->print(<<ENDPOP);
! 3200: <script>
! 3201: popwin=open('','popwin','width=400,height=100');
! 3202: popwin.document.writeln('<html><body bgcolor="#FFFFFF">'+
! 3203: '<h3>Spreadsheet Calculation Progress</h3>'+
! 3204: '<form name=popremain>'+
! 3205: '<input type=text size=45 name=remaining value=Starting></form>'+
! 3206: '</body></html>');
! 3207: popwin.document.close();
! 3208: </script>
! 3209: ENDPOP
! 3210: $r->rflush();
! 3211: foreach ($self->A_column()) {
! 3212: if(defined($c) && ($c->aborted())) {
! 3213: last;
! 3214: }
! 3215: my ($row)=(/A(\d+)/);
! 3216: next if (($formulas{$_}=~/^[\!\~\-]/) || ($row==0));
! 3217: my ($sname,$sdom) = split(':',$formulas{$_});
! 3218: my $started = time;
! 3219: my @studentdata=$self->exportsheet($sname,$sdom,'studentcalc',
! 3220: undef,undef,$r);
! 3221: undef %userrdatas;
! 3222: $now++;
! 3223: $r->print('<script>popwin.document.popremain.remaining.value="'.
! 3224: $now.'/'.$total.': '.int((time-$since)/$now*($total-$now)).
! 3225: ' secs remaining '.(time-$started).' last";</script>');
! 3226: $r->rflush();
! 3227: #
! 3228: my $index=0;
! 3229: foreach ('A','B','C','D','E','F','G','H','I','J','K','L','M',
! 3230: 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z') {
! 3231: if (defined($studentdata[$index])) {
! 3232: my $col=$_;
! 3233: if ($studentdata[$index]=~/\D/) {
! 3234: $constants{$col.$row}="'".$studentdata[$index]."'";
! 3235: } else {
! 3236: $constants{$col.$row}=$studentdata[$index];
! 3237: }
! 3238: unless ($col eq 'A') {
! 3239: $formulas{$col.$row}='import';
! 3240: }
! 3241: }
! 3242: $index++;
1.78 matthew 3243: }
1.44 www 3244: }
1.164 ! matthew 3245: $self->formulas(\%formulas);
! 3246: $self->constants(\%constants);
! 3247: $r->print('<script>popwin.close()</script>');
! 3248: $r->rflush();
1.28 www 3249: }
3250:
1.164 ! matthew 3251: # ------------------------------------------------ Load data for one assessment
1.46 www 3252: #
1.164 ! matthew 3253: sub loadassessment {
! 3254: my $self = shift;
! 3255: my ($r,$c)=@_;
! 3256:
! 3257: my $uhome = $self->{'uhome'};
! 3258: my $uname = $self->{'uname'};
! 3259: my $udom = $self->{'udom'};
! 3260: my $symb = $self->{'usymb'};
! 3261: my $cid = $self->{'cid'};
! 3262: my $cnum = $self->{'cnum'};
! 3263: my $cdom = $self->{'cdom'};
! 3264: my $chome = $self->{'chome'};
! 3265: my $csec = $self->{'csec'};
1.46 www 3266:
1.164 ! matthew 3267: my $namespace;
! 3268: unless ($namespace=$cid) { return ''; }
! 3269: # Get stored values
! 3270: my %returnhash=();
! 3271: if ($cachedassess eq $uname.':'.$udom) {
! 3272: #
! 3273: # get data out of the dumped stores
! 3274: #
! 3275: if (exists($cachedstores{$symb})) {
! 3276: %returnhash = %{$cachedstores{$symb}};
! 3277: } else {
! 3278: %returnhash = ();
1.78 matthew 3279: }
1.106 matthew 3280: } else {
1.164 ! matthew 3281: #
! 3282: # restore individual
! 3283: #
! 3284: %returnhash = &Apache::lonnet::restore($symb,$namespace,$udom,$uname);
1.106 matthew 3285: }
3286: #
1.164 ! matthew 3287: # returnhash now has all stores for this resource
! 3288: # convert all "_" to "." to be able to use libraries, multiparts, etc
1.136 matthew 3289: #
1.164 ! matthew 3290: # This is dumb. It is also necessary :(
! 3291: my @oldkeys=keys %returnhash;
1.136 matthew 3292: #
1.164 ! matthew 3293: foreach my $name (@oldkeys) {
! 3294: my $value=$returnhash{$name};
! 3295: delete $returnhash{$name};
! 3296: $name=~s/\_/\./g;
! 3297: $returnhash{$name}=$value;
1.138 matthew 3298: }
1.164 ! matthew 3299: # initialize coursedata and userdata for this user
! 3300: undef %courseopt;
! 3301: undef %useropt;
1.138 matthew 3302:
1.164 ! matthew 3303: my $userprefix=$uname.'_'.$udom.'_';
1.10 www 3304:
1.164 ! matthew 3305: unless ($uhome eq 'no_host') {
! 3306: # Get coursedata
! 3307: unless ((time-$courserdatas{$cid.'.last_cache'})<240) {
! 3308: my %Tmp = &Apache::lonnet::dump('resourcedata',$cdom,$cnum);
! 3309: $courserdatas{$cid}=\%Tmp;
! 3310: $courserdatas{$cid.'.last_cache'}=time;
! 3311: }
! 3312: while (my ($name,$value) = each(%{$courserdatas{$cid}})) {
! 3313: $courseopt{$userprefix.$name}=$value;
! 3314: }
! 3315: # Get userdata (if present)
! 3316: unless ((time-$userrdatas{$uname.'@'.$udom.'.last_cache'})<240) {
! 3317: my %Tmp = &Apache::lonnet::dump('resourcedata',$udom,$uname);
! 3318: $userrdatas{$cid} = \%Tmp;
! 3319: # Most of the time the user does not have a 'resourcedata.db'
! 3320: # file. We need to cache that we got nothing instead of bothering
! 3321: # with requesting it every time.
! 3322: $userrdatas{$uname.'@'.$udom.'.last_cache'}=time;
! 3323: }
! 3324: while (my ($name,$value) = each(%{$userrdatas{$cid}})) {
! 3325: $useropt{$userprefix.$name}=$value;
1.10 www 3326: }
3327: }
1.164 ! matthew 3328: # now courseopt, useropt initialized for this user and course
! 3329: # (used by parmval)
! 3330: #
! 3331: # Load keys for this assessment only
1.106 matthew 3332: #
1.164 ! matthew 3333: my %thisassess=();
! 3334: my ($symap,$syid,$srcf)=split(/\_\_\_/,$symb);
! 3335: foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'keys'))) {
! 3336: $thisassess{$_}=1;
! 3337: }
1.136 matthew 3338: #
1.164 ! matthew 3339: # Load parameters
1.106 matthew 3340: #
1.164 ! matthew 3341: my %c=();
! 3342: if (tie(%parmhash,'GDBM_File',
! 3343: $self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
! 3344: my %f=$self->formulas();
! 3345: foreach my $cell ($self->A_column()) {
! 3346: my $formula = $self->formula($cell);
! 3347: next if ($formula =~/^[\!\~\-]/);
! 3348: if ($formula =~ /^parameter/) {
! 3349: if (defined($thisassess{$formula})) {
! 3350: my $val = &parmval($formula,$symb,$uname,$udom,$csec);
! 3351: $c{$cell} = $val;
! 3352: $c{$formula} = $val;
! 3353: }
! 3354: } else {
! 3355: my $ckey=$formula;
! 3356: $formula=~s/^stores\_/resource\./;
! 3357: $formula=~s/\_/\./g;
! 3358: $c{$cell}=$returnhash{$formula};
! 3359: $c{$ckey}=$returnhash{$formula};
! 3360: }
1.139 matthew 3361: }
1.164 ! matthew 3362: untie(%parmhash);
1.139 matthew 3363: }
1.164 ! matthew 3364: $self->constants(\%c);
! 3365: }
! 3366:
! 3367:
! 3368: # =============================================== Update information in a sheet
! 3369: #
! 3370: # Add new users or assessments, etc.
! 3371: #
! 3372: sub updatesheet {
! 3373: my $self = shift;
! 3374: if ($self->{'type'} eq 'classcalc') {
! 3375: return $self->updateclasssheet();
! 3376: } else {
! 3377: return $self->updatestudentassesssheet();
1.139 matthew 3378: }
1.164 ! matthew 3379: }
! 3380:
! 3381: # =================================================== Load the rows for a sheet
! 3382: #
! 3383: # Import the data for rows
! 3384: #
! 3385: sub loadrows {
! 3386: my $self = shift;
! 3387: my ($r)=@_;
! 3388: my $c = $r->connection;
! 3389: if ($self->{'type'} eq 'classcalc') {
! 3390: $self->loadcourse($r,$c);
! 3391: } elsif ($self->{'type'} eq 'studentcalc') {
! 3392: $self->loadstudent($r,$c);
1.106 matthew 3393: } else {
1.164 ! matthew 3394: $self->loadassessment($r,$c);
1.106 matthew 3395: }
1.164 ! matthew 3396: }
! 3397:
! 3398: # ============================================================== Export handler
! 3399: # exportsheet
! 3400: # returns the export row for a spreadsheet.
! 3401: #
! 3402: sub exportsheet {
! 3403: my $self = shift;
! 3404: my ($uname,$udom,$stype,$usymb,$fn,$r)=@_;
! 3405: my $flag = 0;
! 3406: $uname = $uname || $self->{'uname'};
! 3407: $udom = $udom || $self->{'udom'};
! 3408: $stype = $stype || $self->{'type'};
! 3409: my @exportarr=();
! 3410: # This handles the assessment sheets for '_feedback', etc
! 3411: if (defined($usymb) && ($usymb=~/^\_(\w+)/) &&
! 3412: (!defined($fn) || $fn eq '')) {
! 3413: $fn='default_'.$1;
1.106 matthew 3414: }
1.164 ! matthew 3415: #
! 3416: # Check if cached
! 3417: #
! 3418: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
! 3419: my $found='';
! 3420: if ($Apache::lonspreadsheet::oldsheets{$key}) {
! 3421: foreach (split(/___&\___/,$Apache::lonspreadsheet::oldsheets{$key})) {
! 3422: my ($name,$value)=split(/___=___/,$_);
! 3423: if ($name eq $fn) {
! 3424: $found=$value;
! 3425: }
! 3426: }
1.106 matthew 3427: }
1.164 ! matthew 3428: unless ($found) {
! 3429: &cachedssheets($self,$uname,$udom);
! 3430: if ($Apache::lonspreadsheet::oldsheets{$key}) {
! 3431: foreach (split(/___&\___/,$Apache::lonspreadsheet::oldsheets{$key})) {
! 3432: my ($name,$value)=split(/___=___/,$_);
! 3433: if ($name eq $fn) {
! 3434: $found=$value;
! 3435: }
! 3436: }
1.104 matthew 3437: }
1.106 matthew 3438: }
1.136 matthew 3439: #
1.164 ! matthew 3440: # Check if still valid
1.136 matthew 3441: #
1.164 ! matthew 3442: if ($found) {
! 3443: if (&forcedrecalc($uname,$udom,$stype,$usymb)) {
! 3444: $found='';
! 3445: }
! 3446: }
! 3447: if ($found) {
! 3448: #
! 3449: # Return what was cached
! 3450: #
! 3451: @exportarr=split(/___;___/,$found);
! 3452: return @exportarr;
1.136 matthew 3453: }
3454: #
1.164 ! matthew 3455: # Not cached
1.106 matthew 3456: #
1.164 ! matthew 3457: my $newsheet = Apache::lonspreadsheet::Spreadsheet->new($uname,$udom,
! 3458: $stype,$usymb);
! 3459: $newsheet->readsheet($fn);
! 3460: $newsheet->updatesheet();
! 3461: $newsheet->loadrows($r);
! 3462: $newsheet->calcsheet();
! 3463: @exportarr=$newsheet->exportdata();
! 3464: ##
! 3465: ## Store now
! 3466: ##
1.106 matthew 3467: #
1.164 ! matthew 3468: # load in the old value
1.106 matthew 3469: #
1.164 ! matthew 3470: my %currentlystored=();
! 3471: if ($stype eq 'studentcalc') {
! 3472: my @tmp = &Apache::lonnet::get('nohist_calculatedsheets',
! 3473: [$key],
! 3474: $self->{'cdom'},$self->{'cnum'});
! 3475: if ($tmp[0]!~/^error/) {
! 3476: # We only got one key, so we will access it directly.
! 3477: foreach (split('___&___',$tmp[1])) {
! 3478: my ($key,$value) = split('___=___',$_);
! 3479: $key = '' if (! defined($key));
! 3480: $currentlystored{$key} = $value;
! 3481: }
! 3482: }
! 3483: } else {
! 3484: my @tmp = &Apache::lonnet::get('nohist_calculatedsheets_'.
! 3485: $self->{'cid'},[$key],
! 3486: $self->{'udom'},$self->{'uname'});
! 3487: if ($tmp[0]!~/^error/) {
! 3488: # We only got one key, so we will access it directly.
! 3489: foreach (split('___&___',$tmp[1])) {
! 3490: my ($key,$value) = split('___=___',$_);
! 3491: $key = '' if (! defined($key));
! 3492: $currentlystored{$key} = $value;
! 3493: }
1.104 matthew 3494: }
1.106 matthew 3495: }
3496: #
1.164 ! matthew 3497: # Add the new line
! 3498: #
! 3499: $currentlystored{$fn}=join('___;___',@exportarr);
1.106 matthew 3500: #
1.164 ! matthew 3501: # Stick everything back together
1.106 matthew 3502: #
1.164 ! matthew 3503: my $newstore='';
! 3504: foreach (keys(%currentlystored)) {
! 3505: if ($newstore) { $newstore.='___&___'; }
! 3506: $newstore.=$_.'___=___'.$currentlystored{$_};
1.77 www 3507: }
1.164 ! matthew 3508: my $now=time;
1.120 matthew 3509: #
1.164 ! matthew 3510: # Store away the new value
1.134 matthew 3511: #
1.164 ! matthew 3512: my $timekey = $key.'.time';
! 3513: if ($stype eq 'studentcalc') {
! 3514: my $result = &Apache::lonnet::put('nohist_calculatedsheets',
! 3515: { $key => $newstore,
! 3516: $timekey => $now },
! 3517: $self->{'cdom'},
! 3518: $self->{'cnum'});
! 3519: } else {
! 3520: my $result = &Apache::lonnet::put('nohist_calculatedsheets_'.$self->{'cid'},
! 3521: { $key => $newstore,
! 3522: $timekey => $now },
! 3523: $self->{'udom'},
! 3524: $self->{'uname'});
1.69 www 3525: }
1.164 ! matthew 3526: return @exportarr;
1.1 www 3527: }
3528:
3529: 1;
1.164 ! matthew 3530:
1.1 www 3531: __END__
1.154 matthew 3532:
3533:
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