Annotation of loncom/interface/statistics/lonproblemanalysis.pm, revision 1.34
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.33 matthew 3:
1.34 ! matthew 4: # $Id: lonproblemanalysis.pm,v 1.33 2003/10/13 19:17:42 matthew Exp $
1.1 stredwic 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
1.11 minaeibi 29: package Apache::lonproblemanalysis;
1.1 stredwic 30:
31: use strict;
32: use Apache::lonnet();
1.25 matthew 33: use Apache::loncommon();
1.7 stredwic 34: use Apache::lonhtmlcommon();
1.23 matthew 35: use Apache::loncoursedata();
36: use Apache::lonstatistics;
37: use Apache::lonlocal;
1.2 stredwic 38:
1.1 stredwic 39: sub BuildProblemAnalysisPage {
1.23 matthew 40: my ($r,$c)=@_;
1.24 matthew 41: $r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');
1.25 matthew 42: $r->print(&CreateInterface());
1.28 matthew 43: #
44: my @Students = @Apache::lonstatistics::Students;
45: #
1.33 matthew 46: if (exists($ENV{'form.updatecaches'}) ||
47: (exists($ENV{'form.firstanalysis'}) &&
48: $ENV{'form.firstanalysis'} ne 'no')) {
49: &Apache::lonstatistics::Gather_Full_Student_Data($r);
50: }
51: if (! exists($ENV{'form.firstanalysis'})) {
52: $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
53: } else {
54: $r->print('<input type="hidden" name="firstanalysis" value="no" />');
55: }
56: if (exists($ENV{'form.problemchoice'}) &&
57: ! exists($ENV{'form.SelectAnother'})) {
1.31 matthew 58: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
59: &mt('Analyze Problem Again').'" />');
60: $r->print(' 'x5);
61: $r->print('<input type="submit" name="ClearCache" value="'.
62: &mt('Clear Caches').'" />');
63: $r->print(' 'x5);
1.33 matthew 64: $r->print('<input type="submit" name="updatecaches" value="'.
65: &mt('Update Student Data').'" />');
66: $r->print(' 'x5);
1.31 matthew 67: $r->print('<input type="hidden" name="problemchoice" value="'.
68: $ENV{'form.problemchoice'}.'" />');
69: $r->print('<input type="submit" name="SelectAnother" value="'.
70: &mt('Choose a different resource').'" />');
71: $r->print(' 'x5);
72: #
1.25 matthew 73: $r->print('<hr />');
1.23 matthew 74: #
1.25 matthew 75: my ($symb,$part,$resid) = &get_problem_symb(
1.23 matthew 76: &Apache::lonnet::unescape($ENV{'form.problemchoice'})
77: );
1.28 matthew 78: #
1.23 matthew 79: my $resource = &get_resource_from_symb($symb);
80: if (defined($resource)) {
1.25 matthew 81: my %Data = &get_problem_data($resource->{'src'});
82: my $ORdata = $Data{$part.'.'.$resid};
83: ##
1.26 matthew 84: ## Render the problem
1.25 matthew 85: my $base;
86: ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
87: $base = "http://".$ENV{'SERVER_NAME'}.$base;
1.26 matthew 88: my $rendered_problem =
89: &Apache::lonnet::ssi_body($resource->{'src'});
1.30 matthew 90: $rendered_problem =~ s/<\s*form\s*/<nop /g;
91: $rendered_problem =~ s|(<\s*/form\s*>)|<\/nop>|g;
1.26 matthew 92: $r->print('<table bgcolor="ffffff"><tr><td>'.
1.25 matthew 93: '<base href="'.$base.'" />'.
1.26 matthew 94: $rendered_problem.
95: '</td></tr></table>');
1.25 matthew 96: ##
97: ## Analyze the problem
1.26 matthew 98: my $PerformanceData =
99: &Apache::loncoursedata::get_optionresponse_data
1.28 matthew 100: (\@Students,$symb,$resid);
1.26 matthew 101: if (defined($PerformanceData) &&
102: ref($PerformanceData) eq 'ARRAY') {
1.28 matthew 103: if ($ENV{'form.AnalyzeBy'} eq 'Tries') {
1.33 matthew 104: my $analysis_html = &tries_analysis($PerformanceData,
105: $ORdata);
106: $r->print($analysis_html);
107: } elsif ($ENV{'form.AnalyzeBy'} eq 'Time') {
108: my $analysis_html = &time_analysis($PerformanceData,
1.28 matthew 109: $ORdata);
1.26 matthew 110: $r->print($analysis_html);
1.28 matthew 111: } else {
112: $r->print('<h2>'.
113: &mt('The analysis you have selected is '.
114: 'not supported at this time').
115: '</h2>');
116: }
1.26 matthew 117: } else {
118: $r->print('<h2>'.
119: &mt('There is no student data for this problem.').
120: '</h2>');
121: }
1.23 matthew 122: } else {
123: $r->print('resource is undefined');
1.7 stredwic 124: }
1.23 matthew 125: $r->print('<hr />');
1.25 matthew 126: } else {
1.31 matthew 127: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
128: &mt('Analyze Problem').'" />');
129: $r->print(' 'x5);
1.27 matthew 130: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
1.31 matthew 131: $r->print(&OptionResponseProblemSelector());
1.1 stredwic 132: }
133: }
134:
1.25 matthew 135:
1.33 matthew 136: #########################################################
137: #########################################################
138: ##
139: ## Misc interface routines use by analysis code
140: ##
141: #########################################################
142: #########################################################
143: sub build_foil_index {
144: my ($ORdata) = @_;
145: my @Foils = sort(keys(%{$ORdata->{'Foiltext'}}));
1.25 matthew 146: my %Row_Label;
147: foreach my $foilid (@Foils) {
148: my $value = $ORdata->{'Foiltext'}->{$foilid};
149: $Row_Label{$foilid} = $ORdata->{'Foiltext'}->{$foilid};
150: }
1.31 matthew 151: #
152: # Build up the table of row labels.
153: my $table = '<table border="1" >'."\n";
1.32 matthew 154: $table .= '<tr><th>'.&mt('Foil Number').'</th>'.
155: '<th>'.&mt('Foil Text')."</th></tr>\n";
1.31 matthew 156: my $index = 1;
157: foreach my $foilid (@Foils) {
158: $table .= '<tr><td>'.$index.'</td>'.
159: '<td>'.$Row_Label{$foilid}."</td></tr>\n";
160: } continue {
161: $index++;
1.25 matthew 162: }
1.31 matthew 163: $table .= "</table>\n";
1.33 matthew 164: return ($table,@Foils);
165: }
166:
167: #########################################################
168: #########################################################
169: ##
170: ## Tries Analysis
171: ##
172: #########################################################
173: #########################################################
174: sub tries_analysis {
175: my ($PerformanceData,$ORdata) = @_;
176: my $mintries = 1;
177: my $maxtries = $ENV{'form.NumPlots'};
178: my %ResponseData = &analyze_option_data_by_tries($PerformanceData,
179: $mintries,$maxtries);
180: my ($table,@Foils) = &build_foil_index($ORdata);
1.31 matthew 181: #
182: # Compute the data neccessary to make the plots
1.25 matthew 183: my @PlotData;
184: my @CumulativePlotData;
185: foreach my $foilid (@Foils) {
186: for (my $i=$mintries;$i<=$maxtries;$i++) {
187: #
188: # Gather the per-attempt data
189: push (@{$PlotData[$i]->{'good'}},
190: $ResponseData{$foilid}->[$i]->{'percent_corr'});
191: push (@{$PlotData[$i]->{'bad'}},
192: 100-$ResponseData{$foilid}->[$i]->{'percent_corr'});
1.31 matthew 193: #
194: # Someday we may need the cumulative data and I think
195: # this is a neat way of computing it as we go along.
1.25 matthew 196: push (@{$CumulativePlotData[$i]->{'good'}},
197: $CumulativePlotData[-1]->{'good'}+
198: $ResponseData{$foilid}->[$i]->{'correct'});
199: push (@{$CumulativePlotData[$i]->{'bad'}},
200: $CumulativePlotData[-1]->{'bad'}+
201: $ResponseData{$foilid}->[$i]->{'incorrect'});
202: }
203: }
1.31 matthew 204: #
205: # Build a table for the plots
206: $table .= "<table>\n";
207: my @Plots;
1.25 matthew 208: for (my $i=$mintries;$i<=$maxtries;$i++) {
1.27 matthew 209: my $minstu = $ResponseData{$Foils[0]}->[$i]->{'total'};
210: my $maxstu = $ResponseData{$Foils[0]}->[$i]->{'total'};
211: foreach my $foilid (@Foils) {
212: if ($minstu > $ResponseData{$foilid}->[$i]->{'total'}) {
213: $minstu = $ResponseData{$foilid}->[$i]->{'total'};
214: }
215: if ($maxstu < $ResponseData{$foilid}->[$i]->{'total'}) {
216: $maxstu = $ResponseData{$foilid}->[$i]->{'total'};
217: }
218: }
1.28 matthew 219: $maxstu = 0 if (! $maxstu);
220: $minstu = 0 if (! $minstu);
1.27 matthew 221: my $graphlink;
222: if ($maxstu == $minstu) {
1.28 matthew 223: $graphlink = &Apache::loncommon::DrawGraph
224: ('Attempt '.$i.', '.$maxstu.' students',
225: 'Foil Number',
226: 'Percent Correct',
227: 100,
228: $PlotData[$i]->{'good'},
229: $PlotData[$i]->{'bad'});
1.27 matthew 230: } else {
1.29 matthew 231: $graphlink = &Apache::loncommon::DrawGraph
1.28 matthew 232: ('Attempt '.$i.', '.$minstu.'-'.$maxstu.
233: ' students',
234: 'Foil Number',
235: 'Percent Correct',
236: 100,
237: $PlotData[$i]->{'good'},
238: $PlotData[$i]->{'bad'});
1.27 matthew 239: }
1.31 matthew 240: push(@Plots,$graphlink);
1.25 matthew 241: }
1.31 matthew 242: #
243: # Should this be something the user can set? Too many dialogs!
244: my $plots_per_row = 2;
245: while (my $plotlink = shift(@Plots)) {
246: $table .= '<tr><td>'.$plotlink.'</td>';
247: for (my $i=1;$i<$plots_per_row;$i++) {
248: if ($plotlink = shift(@Plots)) {
249: $table .= '<td>'.$plotlink.'</td>';
250: } else {
251: $table .= '<td></td>';
252: }
253: }
254: $table .= "</tr>\n";
1.25 matthew 255: }
1.31 matthew 256: $table .= "</table>\n";
1.25 matthew 257: return ($table);
258: }
259:
260: sub analyze_option_data_by_tries {
1.26 matthew 261: my ($PerformanceData,$mintries,$maxtries) = @_;
1.25 matthew 262: my %Trydata;
263: $mintries = 1 if (! defined($mintries) || $mintries < 1);
264: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
1.26 matthew 265: foreach my $row (@$PerformanceData) {
266: next if (! defined($row));
1.25 matthew 267: my ($grading,$submission,$time,$tries) = @$row;
268: my @Foilgrades = split('&',$grading);
269: my @Foilsubs = split('&',$submission);
270: for (my $numtries = 1; $numtries <= $maxtries; $numtries++) {
271: if ($tries == $numtries) {
272: foreach my $foilgrade (@Foilgrades) {
273: my ($foilid,$correct) = split('=',$foilgrade);
274: if ($correct) {
275: $Trydata{$foilid}->[$numtries]->{'correct'}++;
276: } else {
277: $Trydata{$foilid}->[$numtries]->{'incorrect'}++;
278: }
279: }
280: }
281: }
282: }
283: foreach my $foilid (keys(%Trydata)) {
284: foreach my $tryhash (@{$Trydata{$foilid}}) {
285: next if ((! exists($tryhash->{'correct'}) &&
286: ! exists($tryhash->{'incorrect'})) ||
287: ($tryhash->{'correct'} < 1 &&
288: $tryhash->{'incorrect'} < 1));
1.27 matthew 289: $tryhash->{'total'} = $tryhash->{'correct'} +
290: $tryhash->{'incorrect'};
1.25 matthew 291: $tryhash->{'percent_corr'} = 100 *
292: ($tryhash->{'correct'} /
293: ($tryhash->{'correct'} + $tryhash->{'incorrect'})
294: );
295: }
296: }
297: return %Trydata;
298: }
299:
1.33 matthew 300: #########################################################
301: #########################################################
302: ##
303: ## Time Analysis
304: ##
305: #########################################################
306: #########################################################
307: sub time_analysis {
308: my ($PerformanceData,$ORdata) = @_;
309: my $num_plots = $ENV{'form.NumPlots'};
310: my ($table,@Foils) = &build_foil_index($ORdata);
311: my $num_data = scalar(@$PerformanceData)-1;
312: my $percent = sprintf('%2f',100/$num_plots);
313: for (my $i=0;$i<$num_plots;$i++) {
1.34 ! matthew 314: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
! 315: ('startdate_'.$i);
! 316: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
! 317: ('enddate_'.$i);
! 318: my ($begin_index,$end_index,$plottitle,$plothtml,$data);
! 319: if (! defined($starttime) || ! defined($endtime)) {
! 320: $begin_index = $i*int($num_data/$num_plots);
! 321: $end_index = ($i+1)*int($num_data/$num_plots);
! 322: my $lownum = sprintf('%2.1f',$i*$percent);
! 323: $lownum =~ s/(\.0)$//;
! 324: my $highnum = sprintf('%2.1f',($i+1)*$percent);
! 325: $highnum =~ s/(\.0)$//;
! 326: $plottitle = $lownum.'% to '.$highnum.'% of submissions';
! 327: } else {
! 328: my $j;
! 329: while (++$j < scalar(@$PerformanceData)) {
! 330: last if ($PerformanceData->[$j]->[2] > $starttime);
! 331: }
! 332: $begin_index = $j;
! 333: while (++$j < scalar(@$PerformanceData)) {
! 334: last if ($PerformanceData->[$j]->[2] > $endtime);
! 335: }
! 336: $end_index = $j;
! 337: $plottitle = 'Tries plot '.$i;
! 338: }
! 339:
! 340: ($plothtml,$starttime,$endtime,$data) =
1.33 matthew 341: &analyze_option_data_by_time($PerformanceData,
342: $begin_index,$end_index,
1.34 ! matthew 343: $plottitle,
1.33 matthew 344: @Foils);
1.34 ! matthew 345: my $startdateform = &Apache::lonhtmlcommon::date_setter
! 346: ('Statistics','startdate_'.$i,$starttime);
! 347: my $enddateform = &Apache::lonhtmlcommon::date_setter
! 348: ('Statistics','enddate_'.$i,$endtime);
! 349: $plothtml.= "<br />\n".
! 350: "<b>Start Time</b>: "." ".$startdateform."<br />\n".
! 351: "<b>End Time</b> : "." ".$enddateform."<br />\n";
1.33 matthew 352: $table.=$plothtml;
353: }
354: return $table;
355: }
356:
357: sub analyze_option_data_by_time {
358: my ($PerformanceData,$begin_index,$end_index,$description,@Foils) = @_;
359: my %TimeData;
360: #
361: # Get the start and end times for this segment of the plot
362: my $starttime = $PerformanceData->[$begin_index]->[2];
363: my $endtime = $PerformanceData->[$end_index ]->[2];
364: #
365: # Compute the number getting the foils correct or incorrects
366: for (my $i=$begin_index;$i<=$end_index;$i++) {
367: my $row = $PerformanceData->[$i];
368: next if (! defined($row));
369: my ($grading,$submission,$time,$tries) = @$row;
370: my @Foilgrades = split('&',$grading);
371: my @Foilsubs = split('&',$submission);
372: foreach my $foilgrade (@Foilgrades) {
373: my ($foilid,$correct) = split('=',$foilgrade);
374: if ($correct) {
375: $TimeData{$foilid}->{'correct'}++;
376: } else {
377: $TimeData{$foilid}->{'incorrect'}++;
378: }
379: }
380: }
381: #
382: # Compute the total and percent correct
383: my @Plotdata1;
384: my @Plotdata2;
385: foreach my $foilid (@Foils) {
386: if (! exists($TimeData{$foilid}->{'correct'})) {
387: $TimeData{$foilid}->{'correct'} = 0;
388: }
389: if (! exists($TimeData{$foilid}->{'incorrect'})) {
390: $TimeData{$foilid}->{'incorrect'} = 0;
391: }
392: $TimeData{$foilid}->{'total'} = $TimeData{$foilid}->{'correct'} +
393: $TimeData{$foilid}->{'incorrect'};
394: $TimeData{$foilid}->{'percent_corr'} = 100 *
395: $TimeData{$foilid}->{'correct'} /
396: $TimeData{$foilid}->{'total'};
397: push (@Plotdata1, $TimeData{$foilid}->{'percent_corr'});
398: push (@Plotdata2,100-$TimeData{$foilid}->{'percent_corr'});
399: }
400: #
401: # Create the plot
402: my $graphlink = &Apache::loncommon::DrawGraph
403: ($description,#'Time Interval Analysis',
404: 'Foil Number',
405: 'Percent Correct / Incorrect',
406: 100,
407: \@Plotdata1,\@Plotdata2);
408: #
409: return ($graphlink,$starttime,$endtime,\%TimeData);
1.1 stredwic 410: }
411:
1.33 matthew 412:
413:
414:
415: #########################################################
416: #########################################################
417: ##
418: ## Interface
419: ##
420: #########################################################
421: #########################################################
1.23 matthew 422: sub CreateInterface {
1.28 matthew 423: ##
424: ## Environment variable initialization
425: if (! exists$ENV{'form.AnalyzeBy'}) {
426: $ENV{'form.AnalyzeBy'} = 'Tries';
427: }
428: ##
429: ## Build the menu
1.7 stredwic 430: my $Str = '';
1.23 matthew 431: $Str .= '<table cellspacing="5">'."\n";
432: $Str .= '<tr>';
433: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
434: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1.31 matthew 435: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
436: $Str .= '<td align="center"> </td>';
1.23 matthew 437: $Str .= '</tr>'."\n";
1.31 matthew 438: ##
439: ##
1.23 matthew 440: $Str .= '<tr><td align="center">'."\n";
441: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.28 matthew 442: $Str .= '</td>';
443: #
444: $Str .= '<td align="center">';
1.23 matthew 445: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.28 matthew 446: $Str .= '</td>';
447: #
1.31 matthew 448: # $Str .= '<td align="center">';
1.23 matthew 449: my $only_seq_with_assessments = sub {
450: my $s=shift;
451: if ($s->{'num_assess'} < 1) {
452: return 0;
453: } else {
454: return 1;
455: }
456: };
1.31 matthew 457: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1.23 matthew 458: $only_seq_with_assessments);
1.31 matthew 459: # $Str .= '</td>';
1.28 matthew 460: #
461: $Str .= '<td>';
1.31 matthew 462: $Str .= '<nobr>'.&mt('Analyze By ');
463: $Str .='<select name="AnalyzeBy" >';
464: #
465: $Str .= '<option value="Tries" ';
466: if (! exists($ENV{'form.AnalyzeBy'}) || $ENV{'form.AnalyzeBy'} eq 'Tries'){
467: # Default to Tries
468: $Str .= ' selected ';
469: }
470: $Str .= '>'.&mt('Tries').'</option>';
471: #
472: $Str .= '<option value="Time" ';
473: $Str .= ' selected ' if ($ENV{'form.AnalyzeBy'} eq 'Time');
474: $Str .= '>'.&mt('Time').'</option>';
475: $Str .= '</select></nobr><br />';
476: #
477: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
478: $Str .= '<select name="NumPlots">';
479: if (! exists($ENV{'form.NumPlots'})
480: || $ENV{'form.NumPlots'} < 1
481: || $ENV{'form.NumPlots'} > 20) {
1.33 matthew 482: $ENV{'form.NumPlots'} = 5;
1.31 matthew 483: }
484: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
485: $Str .= '<option value="'.$i.'" ';
486: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
487: $Str .= '>'.$i.'</option>';
1.28 matthew 488: }
1.31 matthew 489: $Str .= '</select></nobr>';
1.28 matthew 490: $Str .= '</td>';
491: #
492: $Str .= '</tr>'."\n";
1.23 matthew 493: $Str .= '</table>'."\n";
494: return ($Str);
495: }
496:
497: sub OptionResponseProblemSelector {
498: my $Str;
499: $Str = "\n<table>\n";
500: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
501: next if ($seq->{'num_assess'}<1);
502: my $seq_str = '';
503: foreach my $res (@{$seq->{'contents'}}) {
504: # &Apache::lonnet::logthis('checking '.$res->{'title'});
1.26 matthew 505: next if ($res->{'type'} ne 'assessment');
1.23 matthew 506: foreach my $part (@{$res->{'parts'}}) {
507: my $partdata = $res->{'partdata'}->{$part};
508: if (! exists($partdata->{'option'}) ||
509: $partdata->{'option'} == 0) {
510: next;
511: }
512: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
513: my $respid = $partdata->{'ResponseIds'}->[$i];
514: my $resptype = $partdata->{'ResponseTypes'}->[$i];
515: if ($resptype eq 'option') {
1.25 matthew 516: my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$part.':'.$respid);
1.23 matthew 517: my $checked = '';
518: if ($ENV{'form.problemchoice'} eq $value) {
519: $checked = 'checked ';
520: }
521: $seq_str .= '<tr><td>'.
522: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
523: '</td><td>'.
524: '<a href="'.$res->{'src'}.'">'.$res->{'title'}.'</a> ';
525: if ($partdata->{'option'} > 1) {
526: $seq_str .= &mt('response').' '.$respid;
527: }
528: $seq_str .= "</td></tr>\n";
1.11 minaeibi 529: }
530: }
531: }
532: }
1.23 matthew 533: if ($seq_str ne '') {
534: $Str .= '<tr><td> </td><td><b>'.$seq->{'title'}.'</b></td>'.
535: "</tr>\n".$seq_str;
536: }
1.11 minaeibi 537: }
1.23 matthew 538: $Str .= "</table>\n";
539: return $Str;
1.33 matthew 540: }
541:
542: #########################################################
543: #########################################################
544: ##
545: ## Misc functions
546: ##
547: #########################################################
548: #########################################################
549: sub get_problem_symb {
550: my $problemstring = shift();
551: my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/);
552: return ($symb,$partid,$resid);
1.11 minaeibi 553: }
554:
1.23 matthew 555: sub get_resource_from_symb {
556: my ($symb) = @_;
557: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
558: foreach my $res (@{$seq->{'contents'}}) {
559: if ($res->{'symb'} eq $symb) {
560: return $res;
1.2 stredwic 561: }
1.1 stredwic 562: }
563: }
1.23 matthew 564: return undef;
1.1 stredwic 565: }
566:
1.25 matthew 567: sub get_problem_data {
568: my ($url) = @_;
569: # my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze',
570: # 'grade_username' => $sname,
571: # 'grade_domain' => $sdom,
572: # 'grade_courseid' => $cid,
573: # 'grade_symb' => $symb));
574: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
1.23 matthew 575: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
1.25 matthew 576: my %Answer;
1.23 matthew 577: %Answer=&Apache::lonnet::str2hash($Answ);
1.25 matthew 578: # &Apache::lonnet::logthis('keys of %Answer = '.join(', ',(keys(%Answer))));
579: # &Apache::lonnet::logthis('$Answer{parts} = '.
580: # join(', ',@{$Answer{'parts'}}));
581: my %Partdata;
582: foreach my $part (@{$Answer{'parts'}}) {
583: while (my($key,$value) = each(%Answer)) {
584: next if ($key !~ /^$part/);
585: $key =~ s/^$part\.//;
586: if (ref($value) eq 'ARRAY') {
587: if ($key eq 'options') {
588: $Partdata{$part}->{'Options'}=$value;
589: } elsif ($key eq 'concepts') {
590: $Partdata{$part}->{'Concepts'}=$value;
591: } elsif ($key =~ /^concept\.(.*)$/) {
592: my $concept = $1;
593: foreach my $foil (@$value) {
594: $Partdata{$part}->{$foil}->{'Concept'}=$concept;
595: }
596: }
1.26 matthew 597: # &Apache::lonnet::logthis($part.' '.$key.' (array) = '.
598: # join(', ',@$value));
1.25 matthew 599: } else {
600: $value =~ s/^\s*//g;
601: $value =~ s/\s*$//g;
602: if ($key=~ /^foil\.text\.(.*)$/) {
603: my $foil = $1;
604: $Partdata{$part}->{'Foiltext'}->{$foil}=$value;
605: } elsif ($key =~ /^foil\.value\.(.*)$/) {
606: my $foil = $1;
607: $Partdata{$part}->{'FoilValues'}->{$foil}=$value;
608: }
1.26 matthew 609: # &Apache::lonnet::logthis($part.' '.$key.' = '.$value);
1.25 matthew 610: }
611: }
1.23 matthew 612: }
613:
1.25 matthew 614: # my $parts='';
615: # foreach my $elm (@{$Answer{"parts"}}) {
616: # $parts.="$elm,";
617: # }
618: # chop($parts);
619: # my $conc='';
620: # foreach my $elm (@{$Answer{"$parts.concepts"}}) {
621: # $conc.="$elm@";
622: # }
623: # chop($conc);
624: #
625: # @Concepts=split(/\@/,$conc);
626: # foreach my $concept (@{$Answer{"$parts.concepts"}}) {
627: # foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) {
628: # $foil_to_concept{$foil} = $concept;
629: # #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"};
630: # }
631: # }
632: # return $symb;
633: return %Partdata;
1.1 stredwic 634: }
635:
1.23 matthew 636: 1;
1.1 stredwic 637:
638: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonproblemanalysis.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface / statistics