1: # The LearningOnline Network with CAPA
2: # Quick Student Grades Display
3: #
4: # $Id: lonquickgrades.pm,v 1.58 2010/12/04 14:41:09 www 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: $r->print('<div id="LC_head_subbox">');
125: if ($notshowTotals) { $r->print (' '.&mt('Students do not see total points.').' '); }
126: if ($notshowSPRSlink){ $r->print (' '.&mt('Students do not see link to spreadsheet.').' '); }
127: if ($showPoints) { $r->print (' '.&mt('Students will see points based on problem weights.').' '); }
128: if ($showCategories) { $r->print (' '.&mt('Students will see points based on categories.').' '); }
129: $r->print(' '.&Apache::lonhtmlcommon::coursepreflink(&mt('Grade display settings'),'grading').'</div>');
130: }
131:
132:
133: $r->print("\n".'<ul class="LC_TabContentBigger" id="main">');
134: $r->print("\n".'<li'.($mode eq 'quick'?' class="active"':'').'><a href="/adm/quickgrades"><b> '.
135: ($showPoints?&mt('Points Overview'):($showCategories?&mt('Grades Overview'):&mt('Completion Overview'))).
136: ' </b></a></li>');
137:
138: if (!($showPoints || $notshowSPRSlink) || ($allowed_to_view)) {
139: $r->print("\n".'<li'.($mode eq 'spreadsheet'?' class="active"':'').'><a href="/adm/'.($allowed_to_view?'classcalc':'studentcalc').'"><b>'.
140: &mt('Spreadsheet (Detailed)').'</b></a></li>');
141: }
142: if ($allowed_to_view) {
143: $r->print("\n".'<li'.($mode eq 'chart'?' class="active"':'').'><a href="/adm/statistics?reportSelected=student_assessment"><b>'.
144: &mt('Assessment Overview Chart').'</b></a></li>');
145:
146: }
147: $r->print("\n".'</ul>'."\n");
148: $r->print('<div class="LC_Box" style="clear:both;margin:0;"><div id="maincoursedoc" style="margin:0 0;padding:0 0;"><div class="LC_ContentBox" id="mainCourseDocuments" style="display: block;">');
149: }
150:
151: sub endGradeScreen {
152: my ($r)=@_;
153: $r->print('</div></div></div>');
154: }
155:
156:
157: sub getData {
158:
159: my ($showPoints,$uname,$udom)=@_;
160:
161: &Apache::lonnet::logthis("About to call with $uname $udom");
162:
163: # Create the nav map
164: my $navmap = Apache::lonnavmaps::navmap->new($uname,$udom);
165:
166: my $res = $navmap->firstResource(); # temp resource to access constants
167:
168: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
169: my $depth = 1;
170: $iterator->next(); # ignore first BEGIN_MAP
171: my $curRes = $iterator->next();
172:
173: # General overview of the following: Walk along the course resources.
174: # For every problem in the resource, tell its parent maps how many
175: # parts and how many parts correct it has. After that, each map will
176: # have a count of the total parts underneath it, correct and otherwise.
177: # After that, we will walk through the course again and read off
178: # maps in order, with their data.
179: # (If in the future people decide not to be cumulative, only add
180: # the counts to the parent map.)
181: # For convenience, "totalParts" is also "totalPoints" when we're looking
182: # at points; I can't come up with a variable name that makes sense
183: # equally for both cases.
184:
185: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
186: my $totalAttempted = 0;
187: my $now = time();
188: my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
189:
190: # Pre-run: Count parts correct
191: while ( $depth > 0 ) {
192: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
193: if ($curRes == $iterator->END_MAP()) { $depth--; }
194:
195: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
196: {
197: # Get number of correct, incorrect parts
198: my $parts = $curRes->parts();
199: my $partsRight = 0;
200: my $partsCount = 0;
201: my $partsAttempted = 0;
202: my $stack = $iterator->getStack();
203:
204: for my $part (@{$parts}) {
205: my $completionStatus = $curRes->getCompletionStatus($part);
206: my $dateStatus = $curRes->getDateStatus($part);
207:
208: if ($completionStatus == $curRes->EXCUSED()) {
209: next;
210: }
211: if ($showPoints) {
212: my $score = 0;
213: # If we're not telling status and the answer date isn't passed yet,
214: # it's an "attempted" point
215: if ((($curRes->problemstatus($part) eq 'no') ||
216: ($curRes->problemstatus($part) eq 'no_feedback_ever')) &&
217: ($dateStatus != $curRes->ANSWER_OPEN)) {
218: my $status = $curRes->simpleStatus($part);
219: if ($status == $curRes->ATTEMPTED) {
220: $partsAttempted += $curRes->weight($part);
221: $totalAttempted += $partsAttempted;
222: }
223: } else {
224: $score = &Apache::grades::compute_points($curRes->weight($part), $curRes->awarded($part));
225: }
226: $partsRight += $score;
227: $totalRight += $score;
228: $partsCount += $curRes->weight($part);
229:
230: if ($curRes->opendate($part) < $now) {
231: $totalPossible += $curRes->weight($part);
232: }
233: $totalParts += $curRes->weight($part);
234: } else {
235: my $status = $curRes->simpleStatus($part);
236: my $thisright = 0;
237: $partsCount++;
238: if ($status == $curRes->CORRECT ||
239: $status == $curRes->PARTIALLY_CORRECT ) {
240: $partsRight++;
241: $totalRight++;
242: $thisright = 1;
243: }
244:
245: if ($status == $curRes->ATTEMPTED) {
246: $partsAttempted++;
247: $totalAttempted++;
248: }
249:
250: my $dateStatus = $curRes->getDateStatus($part);
251: $totalParts++;
252: if ($curRes->opendate($part) < $now) {
253: $totalPossible++;
254: }
255: }
256: }
257:
258: if ($depth == 1) { # in top-level only
259: $topLevelParts += $partsCount;
260: $topLevelRight += $partsRight;
261: $topLevelAttempted += $partsAttempted;
262: }
263:
264: # Crawl down stack and record parts correct and total
265: for my $res (@{$stack}) {
266: if (ref($res) && $res->is_map()) {
267: if (!defined($res->{DATA}->{CHILD_PARTS})) {
268: $res->{DATA}->{CHILD_PARTS} = 0;
269: $res->{DATA}->{CHILD_CORRECT} = 0;
270: $res->{DATA}->{CHILD_ATTEMPTED} = 0;
271: }
272:
273: $res->{DATA}->{CHILD_PARTS} += $partsCount;
274: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
275: $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
276: }
277: }
278: }
279: $curRes = $iterator->next();
280: }
281: return ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
282: }
283:
284: #
285: # Outputting everything.
286: #
287:
288: sub outputTable {
289:
290: my ($r,$showPoints,$notshowTotals,
291: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
292:
293: my @start = (255, 255, 192);
294: my @end = (0, 192, 0);
295:
296: my $indentString = ' ';
297:
298: # Second pass: Print the maps.
299: $r->print(&Apache::loncommon::start_data_table()
300: .&Apache::loncommon::start_data_table_header_row()
301: .'<th>'.&mt('Folder').'</th>');
302: my $title = &mt($showPoints ? "Points Scored" : "Done");
303: if ($totalAttempted) {
304: $title .= " / " . &mt("Attempted");
305: }
306: $r->print("<th>$title".($notshowTotals?'':" / ".&mt('Total')).'</th>'
307: .&Apache::loncommon::end_data_table_header_row());
308: #
309: # Output of folder scores
310: #
311:
312: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
313: my $depth = 1;
314: $iterator->next(); # ignore first BEGIN_MAP
315: my $curRes = $iterator->next();
316:
317: while ($depth > 0) {
318: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
319: if ($curRes == $iterator->END_MAP()) { $depth--; }
320:
321: if (ref($curRes) && $curRes->is_map()) {
322: my $title = $curRes->compTitle();
323:
324: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
325: my $total = $curRes->{DATA}->{CHILD_PARTS};
326: my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
327:
328: if ($total > 0) {
329: my $ratio;
330: $ratio = $correct / $total;
331: my $color = &mixColors(\@start, \@end, $ratio);
332: $r->print(&Apache::loncommon::start_data_table_row()
333: .'<td style="background-color:'.$color.';">');
334:
335: my $thisIndent = '';
336: for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
337:
338: $r->print("$thisIndent$title</td>");
339: if ($totalAttempted) {
340: $r->print('<td valign="top">'
341: .$thisIndent
342: .'<span class="LC_nobreak">'
343: .$correct.' / '.$attempted.($notshowTotals?'':' / '.$total)
344: .'</span></td>'
345: .&Apache::loncommon::end_data_table_row()
346: );
347: } else {
348: $r->print('<td valign="top">'
349: .$thisIndent
350: .'<span class="LC_nobreak">'
351: .$correct.($notshowTotals?'':' / '.$total)
352: .'</span></td>'
353: .&Apache::loncommon::end_data_table_row());
354: }
355: }
356: }
357:
358: $curRes = $iterator->next();
359: }
360:
361: # If there were any problems at the top level, print an extra "catchall"
362: if ($topLevelParts > 0) {
363: my $ratio = $topLevelRight / $topLevelParts;
364: my $color = mixColors(\@start, \@end, $ratio);
365: $r->print(&Apache::loncommon::start_data_table_row()
366: .'<td style="background-color:'.$color.';">');
367: $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
368: $r->print("$topLevelRight / $topLevelParts</td>"
369: .&Apache::loncommon::end_data_table_row());
370: }
371:
372: #
373: # show totals (if applicable), close table
374: #
375: if ($showPoints) {
376: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
377:
378: $title = $showPoints ? "Points" : "Parts Done";
379: my $totaltitle = $showPoints ? &mt("Awarded Total Points") : &mt("Total Parts Done");
380: $r->print(&Apache::loncommon::start_data_table_row()
381: .'<td colspan="2" align="right">'.$totaltitle.': <b>'.$totalRight.'</b><br />');
382: $r->print(&mt('Max Possible To Date')." $maxHelpLink: <b>$totalPossible</b><br />");
383: $title = $showPoints ? "Points" : "Parts";
384: $r->print(&mt("Total $title In Course").': <b>'.$totalParts.'</b></td>'
385: .&Apache::loncommon::end_data_table_row());
386: }
387:
388: $r->print(&Apache::loncommon::end_data_table()
389: .&Apache::loncommon::end_page());
390:
391: }
392:
393: #
394: # Outputting category-based grades.
395: #
396:
397: sub outputCategories {
398:
399: my ($r,$showPoints,$notshowTotals,
400: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
401: }
402:
403: # Pass this two refs to arrays for the start and end color, and a number
404: # from 0 to 1 for how much of the latter you want to mix in. It will
405: # return a string ready to show ("#FFC309");
406:
407: sub mixColors {
408: my $start = shift;
409: my $end = shift;
410: my $ratio = shift;
411:
412: my ($a,$b);
413: my $final = "";
414: $a = $start->[0]; $b = $end->[0];
415: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
416: $a = $start->[1]; $b = $end->[1];
417: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
418: $a = $start->[2]; $b = $end->[2];
419: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
420:
421: $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
422: return "#" . $final;
423: }
424:
425: 1;
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