1: # The LearningOnline Network
2: # Pick a CODE from the list of possible CODEs
3: #
4: # $Id: lonpickcode.pm,v 1.9 2006/03/15 22:11:04 albertel Exp $
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:
29: package Apache::lonpickcode;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::loncommon();
34: use Apache::grades();
35: use Apache::lonlocal;
36: use Apache::lonnet;
37:
38: sub get_code_freq {
39: my ($r)=@_;
40: my %codes;
41: my %scantron_config=
42: &Apache::grades::get_scantron_config($env{'form.scantron_format'});
43: $r->rflush();
44: my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
45: for (my $i=0;$i<=$scanlines->{'count'};$i++) {
46: my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
47: if ($line=~/^[\s\cz]*$/) { next; }
48: my $scan_record=
49: &Apache::grades::scantron_parse_scanline($line,$i,
50: \%scantron_config,
51: $scan_data,1);
52: push(@{$codes{$$scan_record{'scantron.CODE'}}},$$scan_record{'scantron.PaperID'});
53:
54: }
55: return %codes;
56: }
57:
58: sub handler {
59: my $r = shift;
60: &Apache::loncommon::content_type($r,'text/html');
61: $r->send_http_header;
62: return OK if $r->header_only;
63:
64: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
65: ['curCODE','scantron_selectfile',
66: 'form','scantron_format','symb',
67: 'scantron_CODElist','command']);
68:
69: if (!($env{'request.course.id'}) &&
70: (&Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
71: $r->print(&Apache::loncommon::start_page().
72: &mt('Access not allowed.').
73: &Apache::loncommon::end_page());
74: return OK;
75: }
76: if ($env{'form.command'} eq 'codelist') {
77: &code_list($r);
78: } elsif ($env{'form.command'} eq 'showcodes') {
79: &show_codes($r);
80: } else {
81: &picking_a_code($r);
82: }
83: $r->print(&Apache::loncommon::end_page());
84: return OK;
85: }
86:
87: sub code_list {
88: my ($r,$secondview)=@_;
89: if (!$secondview) {
90: $r->print(&Apache::loncommon::start_page("View CODEs"));
91: $r->print("<p>".&mt('Select a set of saved CODEs to view.')."</p>");
92: } else {
93: $r->print("<p>".&mt('Select another set of saved CODEs to view.')."</p>");
94: }
95: $r->print("<form method='POST' action='/adm/pickcode' name='pickcode'>");
96: $r->print(&Apache::grades::scantron_CODElist());
97: $r->print("<input type='hidden' name='command' value='showcodes' />");
98: $r->print("<input type='hidden' name='symb' value='".$env{'form.symb'}."' />");
99: $r->print("<input type='hidden' name='url' value='".$env{'form.url'}."' />");
100: $r->print("<input type='submit' name='submit' value='".&mt("View")."' />");
101: $r->print("</form>");
102: $r->print(&Apache::grades::show_grading_menu_form($env{'form.symb'},
103: $env{'form.url'}));
104: }
105:
106: sub show_codes {
107: my ($r)=@_;
108: $r->print(&Apache::loncommon::start_page("View CODEs"));
109: my %codes=&Apache::grades::get_codes();
110: $r->print("<h2>".$env{'form.scantron_CODElist'}."</h2>");
111: $r->print('<pre>');
112: foreach my $code (sort(keys(%codes))) {
113: $r->print($code."\n");
114: }
115: $r->print('</pre>');
116: &code_list($r,1);
117: }
118:
119: sub picking_a_code {
120: my ($r)=@_;
121: $r->print(&Apache::loncommon::start_page("Selecting a CODE"));
122: $r->print(<<ENDSCRIPT);
123: <script>
124: function gochoose(newcode) {
125: opener.document.$env{'form.form'}.scantron_CODE_selectedvalue.value=newcode;
126: var slct=opener.document.$env{'form.form'}.scantron_CODE_resolution;
127: var i;
128: for (i=0;i<slct.length;i++) {
129: if (slct[i].value=='use_found') { slct[i].checked=true; }
130: }
131: self.close();
132: }
133: </script>
134: ENDSCRIPT
135:
136:
137: $r->print("<p>The CODE on the paper is <tt><b>".$env{'form.curCODE'}.
138: "</b></tt>. Please Select a new one.</p>\n".'<form>');
139: my %codes=&Apache::grades::get_codes();
140: my %code_freq=&get_code_freq($r);
141: my $num_matches=length($env{'form.curCODE'});
142: for (my $i=$num_matches;$i>=0;$i--) {
143: my $to_print="<p> CODEs with $i matches</p>";
144: $to_print.='<table border="1"><tr><td></td><td>CODE</td><td>exams using this CODE</td>';
145: my $print;
146: foreach my $code (sort(keys(%codes))) {
147: if (&Apache::grades::num_matches($env{'form.curCODE'},$code) != $i) { next; }
148: $print=1;
149: my ($count,$list);
150: if (!ref($code_freq{$code})) {
151: $count=0;
152: } else {
153: $count=scalar(@{$code_freq{$code}});
154: $list=' - '.join(', ',@{$code_freq{$code}});
155: }
156: $to_print.='<tr><td>'.
157: '<input type="button" value="'.&mt('Select').
158: '" onClick="gochoose(\''.$code.'\')" /></td>'.
159: '<td><tt>'.$code.'</tt></td><td>'.$count.
160: $list.'</td></tr>';
161: delete($codes{$code});
162: }
163: $to_print.='</table>';
164: if ($print) { $r->print($to_print); }
165: }
166: $r->print('</form>');
167: }
168:
169: 1;
170: __END__
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