1: # The LearningOnline Network with CAPA
2: # Quick Student Grades Display
3: #
4: # $Id: lonquickgrades.pm,v 1.52 2010/12/02 00:53:37 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: # Header
76: my $title = "Grading and Statistics";#$showPoints ? "Points Display" : "Completed Problems Display";
77: my $brcrum = [{href=>"/adm/quickgrades",text => "Points Display"}];
78: $r->print(&Apache::loncommon::start_page($title,undef,
79: {'bread_crumbs' => $brcrum})
80: );
81:
82: $r->print(&Apache::lonhtmlcommon::coursepreflink(&mt('Grade display settings'),'grading'));
83:
84: if (!$showPoints && !$notshowSPRSlink ) {
85: $r->print('<p>'
86: .&mt('This screen shows how many problems (or problem parts) you have completed'
87: .', and how many you have not yet done.'
88: .' You can also look at [_1]a detailed score sheet[_2].'
89: ,'<a href="/adm/studentcalc">','</a>')
90: .'</p>');
91: }
92:
93: $r->print('<p class="LC_info">'.&mt('This may take a few moments to display.').'</p>');
94:
95: $r->rflush();
96: my ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=&getData($showPoints);
97: &outputTable($r,$showPoints,$notshowTotals,
98: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
99: return OK;
100:
101: }
102:
103: sub getData {
104:
105: my ($showPoints)=@_;
106:
107: # Create the nav map
108: my $navmap = Apache::lonnavmaps::navmap->new();
109:
110: my $res = $navmap->firstResource(); # temp resource to access constants
111:
112: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
113: my $depth = 1;
114: $iterator->next(); # ignore first BEGIN_MAP
115: my $curRes = $iterator->next();
116:
117: # General overview of the following: Walk along the course resources.
118: # For every problem in the resource, tell its parent maps how many
119: # parts and how many parts correct it has. After that, each map will
120: # have a count of the total parts underneath it, correct and otherwise.
121: # After that, we will walk through the course again and read off
122: # maps in order, with their data.
123: # (If in the future people decide not to be cumulative, only add
124: # the counts to the parent map.)
125: # For convenience, "totalParts" is also "totalPoints" when we're looking
126: # at points; I can't come up with a variable name that makes sense
127: # equally for both cases.
128:
129: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
130: my $totalAttempted = 0;
131: my $now = time();
132: my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
133:
134: # Pre-run: Count parts correct
135: while ( $depth > 0 ) {
136: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
137: if ($curRes == $iterator->END_MAP()) { $depth--; }
138:
139: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
140: {
141: # Get number of correct, incorrect parts
142: my $parts = $curRes->parts();
143: my $partsRight = 0;
144: my $partsCount = 0;
145: my $partsAttempted = 0;
146: my $stack = $iterator->getStack();
147:
148: for my $part (@{$parts}) {
149: my $completionStatus = $curRes->getCompletionStatus($part);
150: my $dateStatus = $curRes->getDateStatus($part);
151:
152: if ($completionStatus == $curRes->EXCUSED()) {
153: next;
154: }
155: if ($showPoints) {
156: my $score = 0;
157: # If we're not telling status and the answer date isn't passed yet,
158: # it's an "attempted" point
159: if ((($curRes->problemstatus($part) eq 'no') ||
160: ($curRes->problemstatus($part) eq 'no_feedback_ever')) &&
161: ($dateStatus != $curRes->ANSWER_OPEN)) {
162: my $status = $curRes->simpleStatus($part);
163: if ($status == $curRes->ATTEMPTED) {
164: $partsAttempted += $curRes->weight($part);
165: $totalAttempted += $partsAttempted;
166: }
167: } else {
168: $score = &Apache::grades::compute_points($curRes->weight($part), $curRes->awarded($part));
169: }
170: $partsRight += $score;
171: $totalRight += $score;
172: $partsCount += $curRes->weight($part);
173:
174: if ($curRes->opendate($part) < $now) {
175: $totalPossible += $curRes->weight($part);
176: }
177: $totalParts += $curRes->weight($part);
178: } else {
179: my $status = $curRes->simpleStatus($part);
180: my $thisright = 0;
181: $partsCount++;
182: if ($status == $curRes->CORRECT ||
183: $status == $curRes->PARTIALLY_CORRECT ) {
184: $partsRight++;
185: $totalRight++;
186: $thisright = 1;
187: }
188:
189: if ($status == $curRes->ATTEMPTED) {
190: $partsAttempted++;
191: $totalAttempted++;
192: }
193:
194: my $dateStatus = $curRes->getDateStatus($part);
195: $totalParts++;
196: if ($curRes->opendate($part) < $now) {
197: $totalPossible++;
198: }
199: }
200: }
201:
202: if ($depth == 1) { # in top-level only
203: $topLevelParts += $partsCount;
204: $topLevelRight += $partsRight;
205: $topLevelAttempted += $partsAttempted;
206: }
207:
208: # Crawl down stack and record parts correct and total
209: for my $res (@{$stack}) {
210: if (ref($res) && $res->is_map()) {
211: if (!defined($res->{DATA}->{CHILD_PARTS})) {
212: $res->{DATA}->{CHILD_PARTS} = 0;
213: $res->{DATA}->{CHILD_CORRECT} = 0;
214: $res->{DATA}->{CHILD_ATTEMPTED} = 0;
215: }
216:
217: $res->{DATA}->{CHILD_PARTS} += $partsCount;
218: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
219: $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
220: }
221: }
222: }
223: $curRes = $iterator->next();
224: }
225: return ($navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted);
226: }
227:
228: #
229: # Outputting everything.
230: #
231:
232: sub outputTable {
233:
234: my ($r,$showPoints,$notshowTotals,
235: $navmap,$totalParts,$totalPossible,$totalRight,$totalAttempted,$topLevelParts,$topLevelRight,$topLevelAttempted)=@_;
236:
237: my @start = (255, 255, 192);
238: my @end = (0, 192, 0);
239:
240: my $indentString = ' ';
241:
242: # Second pass: Print the maps.
243: $r->print(&Apache::loncommon::start_data_table()
244: .&Apache::loncommon::start_data_table_header_row()
245: .'<th>'.&mt('Folder').'</th>');
246: my $title = &mt($showPoints ? "Points Scored" : "Done");
247: if ($totalAttempted) {
248: $title .= " / " . &mt("Attempted");
249: }
250: $r->print("<th>$title".($notshowTotals?'':" / ".&mt('Total')).'</th>'
251: .&Apache::loncommon::end_data_table_header_row());
252: #
253: # Output of folder scores
254: #
255:
256: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
257: my $depth = 1;
258: $iterator->next(); # ignore first BEGIN_MAP
259: my $curRes = $iterator->next();
260:
261: while ($depth > 0) {
262: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
263: if ($curRes == $iterator->END_MAP()) { $depth--; }
264:
265: if (ref($curRes) && $curRes->is_map()) {
266: my $title = $curRes->compTitle();
267:
268: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
269: my $total = $curRes->{DATA}->{CHILD_PARTS};
270: my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
271:
272: if ($total > 0) {
273: my $ratio;
274: $ratio = $correct / $total;
275: my $color = &mixColors(\@start, \@end, $ratio);
276: $r->print(&Apache::loncommon::start_data_table_row()
277: .'<td style="background-color:'.$color.';">');
278:
279: my $thisIndent = '';
280: for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
281:
282: $r->print("$thisIndent$title</td>");
283: if ($totalAttempted) {
284: $r->print('<td valign="top">'
285: .$thisIndent
286: .'<span class="LC_nobreak">'
287: .$correct.' / '.$attempted.($notshowTotals?'':' / '.$total)
288: .'</span></td>'
289: .&Apache::loncommon::end_data_table_row()
290: );
291: } else {
292: $r->print('<td valign="top">'
293: .$thisIndent
294: .'<span class="LC_nobreak">'
295: .$correct.($notshowTotals?'':' / '.$total)
296: .'</span></td>'
297: .&Apache::loncommon::end_data_table_row());
298: }
299: }
300: }
301:
302: $curRes = $iterator->next();
303: }
304:
305: # If there were any problems at the top level, print an extra "catchall"
306: if ($topLevelParts > 0) {
307: my $ratio = $topLevelRight / $topLevelParts;
308: my $color = mixColors(\@start, \@end, $ratio);
309: $r->print(&Apache::loncommon::start_data_table_row()
310: .'<td style="background-color:'.$color.';">');
311: $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
312: $r->print("$topLevelRight / $topLevelParts</td>"
313: .&Apache::loncommon::end_data_table_row());
314: }
315:
316: #
317: # show totals (if applicable), close table
318: #
319: if ($showPoints) {
320: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
321:
322: $title = $showPoints ? "Points" : "Parts Done";
323: my $totaltitle = $showPoints ? &mt("Awarded Total Points") : &mt("Total Parts Done");
324: $r->print(&Apache::loncommon::start_data_table_row()
325: .'<td colspan="2" align="right">'.$totaltitle.': <b>'.$totalRight.'</b><br />');
326: $r->print(&mt('Max Possible To Date')." $maxHelpLink: <b>$totalPossible</b><br />");
327: $title = $showPoints ? "Points" : "Parts";
328: $r->print(&mt("Total $title In Course").': <b>'.$totalParts.'</b></td>'
329: .&Apache::loncommon::end_data_table_row());
330: }
331:
332: $r->print(&Apache::loncommon::end_data_table()
333: .&Apache::loncommon::end_page());
334:
335: }
336:
337: # Pass this two refs to arrays for the start and end color, and a number
338: # from 0 to 1 for how much of the latter you want to mix in. It will
339: # return a string ready to show ("#FFC309");
340:
341: sub mixColors {
342: my $start = shift;
343: my $end = shift;
344: my $ratio = shift;
345:
346: my ($a,$b);
347: my $final = "";
348: $a = $start->[0]; $b = $end->[0];
349: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
350: $a = $start->[1]; $b = $end->[1];
351: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
352: $a = $start->[2]; $b = $end->[2];
353: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
354:
355: $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
356: return "#" . $final;
357: }
358:
359: 1;
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