1: # The LearningOnline Network with CAPA
2: # Quick Student Grades Display
3: #
4: # $Id: lonquickgrades.pm,v 1.61 2011/01/03 14:39:19 raeburn 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::lonquickgrades;
30:
31: use strict;
32: use Apache::Constants qw(:common :http);
33: use POSIX;
34: use Apache::loncommon;
35: use Apache::lonlocal;
36: use Apache::lonnet;
37: use Apache::grades;
38:
39: sub handler {
40: my $r = shift;
41: return real_handler($r);
42: }
43:
44: sub real_handler {
45: my $r = shift;
46:
47: &Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
48:
49: # Handle header-only request
50: if ($env{'browser.mathml'}) {
51: &Apache::loncommon::content_type($r,'text/xml');
52: } else {
53: &Apache::loncommon::content_type($r,'text/html');
54: }
55: if ($r->header_only) {
56: $r->send_http_header;
57: return OK;
58: }
59:
60: # Send header, don't cache this page
61: &Apache::loncommon::no_cache($r);
62: $r->send_http_header;
63:
64: my $showPoints =
65: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'standard';
66: my $notshowSPRSlink =
67: (($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'external')
68: || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals'));
69: my $notshowTotals=
70: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals';
71: my $showCategories=
72: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories';
73:
74:
75: my $title = "Grading and Statistics";#$showPoints ? "Points Display" : "Completed Problems Display";
76: my $brcrum = [{href=>"/adm/quickgrades",text => "Points Display"}];
77: $r->print(&Apache::loncommon::start_page($title,undef,
78: {'bread_crumbs' => $brcrum})
79: );
80:
81: &startGradeScreen($r,'quick');
82:
83: $r->rflush();
84:
85: # my $uname='korte';
86: # my $udom='gerd';
87:
88: my $uname;
89: my $udom;
90:
91: my ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=
92: &getData($showPoints,$uname,$udom);
93:
94: if ($showCategories) {
95: &outputCategories($r,$showPoints,$notshowTotals,
96: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
97: } else {
98: &outputTable($r,$showPoints,$notshowTotals,
99: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
100: }
101: &endGradeScreen($r);
102: return OK;
103:
104: }
105:
106: sub startGradeScreen {
107: my ($r,$mode)=@_;
108:
109: my $showPoints =
110: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'standard';
111: my $notshowSPRSlink =
112: (($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'external')
113: || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals')
114: || ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories'));
115: my $notshowTotals=
116: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'externalnototals';
117: my $showCategories=
118: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'categories';
119:
120: my $allowed_to_view = &Apache::lonnet::allowed('vgr',$env{'request.course.id'});
121: my $allowed_to_edit = &Apache::lonnet::allowed('mgr',$env{'request.course.id'});
122:
123: if ($allowed_to_view) {
124: my @notes;
125: push(@notes,&mt('Students do not see total points.')) if ($notshowTotals);
126: push(@notes,&mt('Students do not see link to spreadsheet.')) if ($notshowSPRSlink);
127: push(@notes,&mt('Students will see points based on problem weights.')) if ($showPoints);
128: push(@notes,&mt('Students will see points based on categories.')) if ($showCategories);
129: push(@notes, &Apache::lonhtmlcommon::coursepreflink(&mt('Grade display settings'),'grading'));
130: $r->print(&Apache::loncommon::head_subbox(join(' ',@notes)));
131: }
132:
133:
134: $r->print("\n".'<ul class="LC_TabContentBigger" id="main">');
135: $r->print("\n".'<li'.($mode eq 'quick'?' class="active"':'').'><a href="/adm/quickgrades"><b> '.
136: ($showPoints?&mt('Points Overview'):($showCategories?&mt('Grades Overview'):&mt('Completion Overview'))).
137: ' </b></a></li>');
138:
139: if (!($showPoints || $notshowSPRSlink) || ($allowed_to_view)) {
140: $r->print("\n".'<li'.($mode eq 'spreadsheet'?' class="active"':'').'><a href="/adm/'.($allowed_to_view?'classcalc':'studentcalc').'"><b>'.
141: &mt('Spreadsheet (Detailed)').'</b></a></li>');
142: }
143: if ($allowed_to_view) {
144: $r->print("\n".'<li'.($mode eq 'chart'?' class="active"':'').'><a href="/adm/statistics?reportSelected=student_assessment"><b>'.
145: &mt('Assessment Overview Chart').'</b></a></li>');
146:
147: }
148: if ($allowed_to_edit) {
149: $r->print("\n".'<li'.($mode eq 'grading'?' class="active"':'').'><a href="/adm/grades"><b> '.
150: &mt('Problem Grading').' </b></a></li>');
151: }
152: $r->print("\n".'</ul>'."\n");
153: $r->print('<div class="LC_Box" style="clear:both;margin:0;"><div id="maincoursedoc" style="margin:0 0;padding:0 0;"><div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">');
154: }
155:
156: sub endGradeScreen {
157: my ($r)=@_;
158: $r->print('</div></div></div>');
159: }
160:
161:
162: sub getData {
163:
164: my ($showPoints,$uname,$udom)=@_;
165:
166: &Apache::lonnet::logthis("About to call with $uname $udom");
167:
168: # Create the nav map
169: my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
170:
171: my $res = $navmap->firstResource(); # temp resource to access constants
172:
173: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
174: my $depth = 1;
175: $iterator->next(); # ignore first BEGIN_MAP
176: my $curRes = $iterator->next();
177:
178: # General overview of the following: Walk along the course resources.
179: # For every problem in the resource, tell its parent maps how many
180: # parts and how many parts correct it has. After that, each map will
181: # have a count of the total parts underneath it, correct and otherwise.
182: # After that, we will walk through the course again and read off
183: # maps in order, with their data.
184: # (If in the future people decide not to be cumulative, only add
185: # the counts to the parent map.)
186: # For convenience, "totalParts" is also "totalPoints" when we're looking
187: # at points; I can't come up with a variable name that makes sense
188: # equally for both cases.
189:
190: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
191: my $totalAttempted = 0;
192: my $now = time();
193: my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
194:
195: # Pre-run: Count parts correct
196: while ( $depth > 0 ) {
197: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
198: if ($curRes == $iterator->END_MAP()) { $depth--; }
199:
200: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
201: {
202: # Get number of correct, incorrect parts
203: my $parts = $curRes->parts();
204: my $partsRight = 0;
205: my $partsCount = 0;
206: my $partsAttempted = 0;
207: my $stack = $iterator->getStack();
208:
209: for my $part (@{$parts}) {
210: my $completionStatus = $curRes->getCompletionStatus($part);
211: my $dateStatus = $curRes->getDateStatus($part);
212:
213: if ($completionStatus == $curRes->EXCUSED()) {
214: next;
215: }
216: if ($showPoints) {
217: my $score = 0;
218: # If we're not telling status and the answer date isn't passed yet,
219: # it's an "attempted" point
220: if ((($curRes->problemstatus($part) eq 'no') ||
221: ($curRes->problemstatus($part) eq 'no_feedback_ever')) &&
222: ($dateStatus != $curRes->ANSWER_OPEN)) {
223: my $status = $curRes->simpleStatus($part);
224: if ($status == $curRes->ATTEMPTED) {
225: $partsAttempted += $curRes->weight($part);
226: $totalAttempted += $partsAttempted;
227: }
228: } else {
229: $score = &Apache::grades::compute_points($curRes->weight($part), $curRes->awarded($part));
230: }
231: $partsRight += $score;
232: $totalRight += $score;
233: $partsCount += $curRes->weight($part);
234:
235: if ($curRes->opendate($part) < $now) {
236: $totalPossible += $curRes->weight($part);
237: }
238: $totalParts += $curRes->weight($part);
239: } else {
240: my $status = $curRes->simpleStatus($part);
241: my $thisright = 0;
242: $partsCount++;
243: if ($status == $curRes->CORRECT ||
244: $status == $curRes->PARTIALLY_CORRECT ) {
245: $partsRight++;
246: $totalRight++;
247: $thisright = 1;
248: }
249:
250: if ($status == $curRes->ATTEMPTED) {
251: $partsAttempted++;
252: $totalAttempted++;
253: }
254:
255: my $dateStatus = $curRes->getDateStatus($part);
256: $totalParts++;
257: if ($curRes->opendate($part) < $now) {
258: $totalPossible++;
259: }
260: }
261: }
262:
263: if ($depth == 1) { # in top-level only
264: $topLevelParts += $partsCount;
265: $topLevelRight += $partsRight;
266: $topLevelAttempted += $partsAttempted;
267: }
268:
269: # Crawl down stack and record parts correct and total
270: for my $res (@{$stack}) {
271: if (ref($res) && $res->is_map()) {
272: if (!defined($res->{DATA}->{CHILD_PARTS})) {
273: $res->{DATA}->{CHILD_PARTS} = 0;
274: $res->{DATA}->{CHILD_CORRECT} = 0;
275: $res->{DATA}->{CHILD_ATTEMPTED} = 0;
276: }
277:
278: $res->{DATA}->{CHILD_PARTS} += $partsCount;
279: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
280: $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
281: }
282: }
283: }
284: $curRes = $iterator->next();
285: }
286: return ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
287: }
288:
289: #
290: # Outputting everything.
291: #
292:
293: sub outputTable {
294:
295: my ($r,$showPoints,$notshowTotals,
296: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
297:
298: my @start = (255, 255, 192);
299: my @end = (0, 192, 0);
300:
301: my $indentString = ' ';
302:
303: # Second pass: Print the maps.
304: $r->print(&Apache::loncommon::start_data_table()
305: .&Apache::loncommon::start_data_table_header_row()
306: .'<th>'.&mt('Folder').'</th>');
307: my $title = &mt($showPoints ? "Points Scored" : "Done");
308: if ($totalAttempted) {
309: $title .= " / " . &mt("Attempted");
310: }
311: $r->print("<th>$title".($notshowTotals?'':" / ".&mt('Total')).'</th>'
312: .&Apache::loncommon::end_data_table_header_row());
313: #
314: # Output of folder scores
315: #
316:
317: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
318: my $depth = 1;
319: $iterator->next(); # ignore first BEGIN_MAP
320: my $curRes = $iterator->next();
321:
322: while ($depth > 0) {
323: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
324: if ($curRes == $iterator->END_MAP()) { $depth--; }
325:
326: if (ref($curRes) && $curRes->is_map()) {
327: my $title = $curRes->compTitle();
328:
329: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
330: my $total = $curRes->{DATA}->{CHILD_PARTS};
331: my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
332:
333: if ($total > 0) {
334: my $ratio;
335: $ratio = $correct / $total;
336: my $color = &mixColors(\@start, \@end, $ratio);
337: $r->print(&Apache::loncommon::start_data_table_row()
338: .'<td style="background-color:'.$color.';">');
339:
340: my $thisIndent = '';
341: for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
342:
343: $r->print("$thisIndent$title</td>");
344: if ($totalAttempted) {
345: $r->print('<td valign="top">'
346: .$thisIndent
347: .'<span class="LC_nobreak">'
348: .$correct.' / '.$attempted.($notshowTotals?'':' / '.$total)
349: .'</span></td>'
350: .&Apache::loncommon::end_data_table_row()
351: );
352: } else {
353: $r->print('<td valign="top">'
354: .$thisIndent
355: .'<span class="LC_nobreak">'
356: .$correct.($notshowTotals?'':' / '.$total)
357: .'</span></td>'
358: .&Apache::loncommon::end_data_table_row());
359: }
360: }
361: }
362:
363: $curRes = $iterator->next();
364: }
365:
366: # If there were any problems at the top level, print an extra "catchall"
367: if ($topLevelParts > 0) {
368: my $ratio = $topLevelRight / $topLevelParts;
369: my $color = mixColors(\@start, \@end, $ratio);
370: $r->print(&Apache::loncommon::start_data_table_row()
371: .'<td style="background-color:'.$color.';">');
372: $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
373: $r->print("$topLevelRight / $topLevelParts</td>"
374: .&Apache::loncommon::end_data_table_row());
375: }
376:
377: #
378: # show totals (if applicable), close table
379: #
380: if ($showPoints) {
381: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
382:
383: $title = $showPoints ? "Points" : "Parts Done";
384: my $totaltitle = $showPoints ? &mt("Awarded Total Points") : &mt("Total Parts Done");
385: $r->print(&Apache::loncommon::start_data_table_row()
386: .'<td colspan="2" align="right">'.$totaltitle.': <b>'.$totalRight.'</b><br />');
387: $r->print(&mt('Max Possible To Date')." $maxHelpLink: <b>$totalPossible</b><br />");
388: $title = $showPoints ? "Points" : "Parts";
389: $r->print(&mt("Total $title In Course").': <b>'.$totalParts.'</b></td>'
390: .&Apache::loncommon::end_data_table_row());
391: }
392:
393: $r->print(&Apache::loncommon::end_data_table()
394: .&Apache::loncommon::end_page());
395:
396: }
397:
398: #
399: # Outputting category-based grades.
400: #
401:
402: sub outputCategories {
403:
404: my ($r,$showPoints,$notshowTotals,
405: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
406: }
407:
408: # Pass this two refs to arrays for the start and end color, and a number
409: # from 0 to 1 for how much of the latter you want to mix in. It will
410: # return a string ready to show ("#FFC309");
411:
412: sub mixColors {
413: my $start = shift;
414: my $end = shift;
415: my $ratio = shift;
416:
417: my ($a,$b);
418: my $final = "";
419: $a = $start->[0]; $b = $end->[0];
420: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
421: $a = $start->[1]; $b = $end->[1];
422: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
423: $a = $start->[2]; $b = $end->[2];
424: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
425:
426: $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
427: return "#" . $final;
428: }
429:
430: 1;
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