1: # The LearningOnline Network with CAPA
2: # Quick Student Grades Display
3: #
4: # $Id: lonquickgrades.pm,v 1.50 2010/11/27 20:51:26 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: # Create the nav map
76: my $navmap = Apache::lonnavmaps::navmap->new();
77:
78: if (!defined($navmap)) {
79: my $requrl = $r->uri;
80: $env{'user.error.msg'} = "$requrl:bre:0:0:Navamp initialization failed.";
81: return HTTP_NOT_ACCEPTABLE;
82: }
83:
84: # Keep this hash in sync with %statusIconMap in lonnavmaps; they
85: # should match color/icon
86: my $res = $navmap->firstResource(); # temp resource to access constants
87:
88: # Header
89: my $title = "Grading and Statistics";#$showPoints ? "Points Display" : "Completed Problems Display";
90: my $brcrum = [{href=>"/adm/quickgrades",text => "Points Display"}];
91: $r->print(&Apache::loncommon::start_page($title,undef,
92: {'bread_crumbs' => $brcrum})
93: );
94:
95: if (!$showPoints && !$notshowSPRSlink ) {
96: $r->print('<p>'
97: .&mt('This screen shows how many problems (or problem parts) you have completed'
98: .', and how many you have not yet done.'
99: .' You can also look at [_1]a detailed score sheet[_2].'
100: ,'<a href="/adm/studentcalc">','</a>')
101: .'</p>');
102: }
103:
104: $r->print('<p class="LC_info">'.&mt('This may take a few moments to display.').'</p>');
105:
106: $r->rflush();
107:
108: # End navmap using boilerplate
109:
110: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
111: my $depth = 1;
112: $iterator->next(); # ignore first BEGIN_MAP
113: my $curRes = $iterator->next();
114:
115: # General overview of the following: Walk along the course resources.
116: # For every problem in the resource, tell its parent maps how many
117: # parts and how many parts correct it has. After that, each map will
118: # have a count of the total parts underneath it, correct and otherwise.
119: # After that, we will walk through the course again and read off
120: # maps in order, with their data.
121: # (If in the future people decide not to be cumulative, only add
122: # the counts to the parent map.)
123: # For convenience, "totalParts" is also "totalPoints" when we're looking
124: # at points; I can't come up with a variable name that makes sense
125: # equally for both cases.
126:
127: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
128: my $totalAttempted = 0;
129: my $now = time();
130: my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
131:
132: # Pre-run: Count parts correct
133: while ( $depth > 0 ) {
134: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
135: if ($curRes == $iterator->END_MAP()) { $depth--; }
136:
137: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
138: {
139: # Get number of correct, incorrect parts
140: my $parts = $curRes->parts();
141: my $partsRight = 0;
142: my $partsCount = 0;
143: my $partsAttempted = 0;
144: my $stack = $iterator->getStack();
145:
146: for my $part (@{$parts}) {
147: my $completionStatus = $curRes->getCompletionStatus($part);
148: my $dateStatus = $curRes->getDateStatus($part);
149:
150: if ($completionStatus == $curRes->EXCUSED()) {
151: next;
152: }
153: if ($showPoints) {
154: my $score = 0;
155: # If we're not telling status and the answer date isn't passed yet,
156: # it's an "attempted" point
157: if ((($curRes->problemstatus($part) eq 'no') ||
158: ($curRes->problemstatus($part) eq 'no_feedback_ever')) &&
159: ($dateStatus != $curRes->ANSWER_OPEN)) {
160: my $status = $curRes->simpleStatus($part);
161: if ($status == $curRes->ATTEMPTED) {
162: $partsAttempted += $curRes->weight($part);
163: $totalAttempted += $partsAttempted;
164: }
165: } else {
166: $score = &Apache::grades::compute_points($curRes->weight($part), $curRes->awarded($part));
167: }
168: $partsRight += $score;
169: $totalRight += $score;
170: $partsCount += $curRes->weight($part);
171:
172: if ($curRes->opendate($part) < $now) {
173: $totalPossible += $curRes->weight($part);
174: }
175: $totalParts += $curRes->weight($part);
176: } else {
177: my $status = $curRes->simpleStatus($part);
178: my $thisright = 0;
179: $partsCount++;
180: if ($status == $curRes->CORRECT ||
181: $status == $curRes->PARTIALLY_CORRECT ) {
182: $partsRight++;
183: $totalRight++;
184: $thisright = 1;
185: }
186:
187: if ($status == $curRes->ATTEMPTED) {
188: $partsAttempted++;
189: $totalAttempted++;
190: }
191:
192: my $dateStatus = $curRes->getDateStatus($part);
193: $totalParts++;
194: if ($curRes->opendate($part) < $now) {
195: $totalPossible++;
196: }
197: }
198: }
199:
200: if ($depth == 1) { # in top-level only
201: $topLevelParts += $partsCount;
202: $topLevelRight += $partsRight;
203: $topLevelAttempted += $partsAttempted;
204: }
205:
206: # Crawl down stack and record parts correct and total
207: for my $res (@{$stack}) {
208: if (ref($res) && $res->is_map()) {
209: if (!defined($res->{DATA}->{CHILD_PARTS})) {
210: $res->{DATA}->{CHILD_PARTS} = 0;
211: $res->{DATA}->{CHILD_CORRECT} = 0;
212: $res->{DATA}->{CHILD_ATTEMPTED} = 0;
213: }
214:
215: $res->{DATA}->{CHILD_PARTS} += $partsCount;
216: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
217: $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
218: }
219: }
220: }
221: $curRes = $iterator->next();
222: }
223:
224: $iterator = $navmap->getIterator(undef, undef, undef, 1);
225: $depth = 1;
226: $iterator->next(); # ignore first BEGIN_MAP
227: $curRes = $iterator->next();
228:
229: my @start = (255, 255, 192);
230: my @end = (0, 192, 0);
231:
232: my $indentString = ' ';
233:
234: # Second pass: Print the maps.
235: $r->print(&Apache::loncommon::start_data_table()
236: .&Apache::loncommon::start_data_table_header_row()
237: .'<th>'.&mt('Folder').'</th>');
238: $title = &mt($showPoints ? "Points Scored" : "Done");
239: if ($totalAttempted) {
240: $title .= " / " . &mt("Attempted");
241: }
242: $r->print("<th>$title".($notshowTotals?'':" / ".&mt('Total')).'</th>'
243: .&Apache::loncommon::end_data_table_header_row());
244: while ($depth > 0) {
245: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
246: if ($curRes == $iterator->END_MAP()) { $depth--; }
247:
248: if (ref($curRes) && $curRes->is_map()) {
249: my $title = $curRes->compTitle();
250:
251: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
252: my $total = $curRes->{DATA}->{CHILD_PARTS};
253: my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
254:
255: if ($total > 0) {
256: my $ratio;
257: $ratio = $correct / $total;
258: my $color = mixColors(\@start, \@end, $ratio);
259: $r->print(&Apache::loncommon::start_data_table_row()
260: .'<td style="background-color:'.$color.';">');
261:
262: my $thisIndent = '';
263: for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
264:
265: $r->print("$thisIndent$title</td>");
266: if ($totalAttempted) {
267: $r->print('<td valign="top">'
268: .$thisIndent
269: .'<span class="LC_nobreak">'
270: .$correct.' / '.$attempted.($notshowTotals?'':' / '.$total)
271: .'</span></td>'
272: .&Apache::loncommon::end_data_table_row()
273: );
274: } else {
275: $r->print('<td valign="top">'
276: .$thisIndent
277: .'<span class="LC_nobreak">'
278: .$correct.($notshowTotals?'':' / '.$total)
279: .'</span></td>'
280: .&Apache::loncommon::end_data_table_row());
281: }
282: }
283: }
284:
285: $curRes = $iterator->next();
286: }
287:
288: # If there were any problems at the top level, print an extra "catchall"
289: if ($topLevelParts > 0) {
290: my $ratio = $topLevelRight / $topLevelParts;
291: my $color = mixColors(\@start, \@end, $ratio);
292: $r->print(&Apache::loncommon::start_data_table_row()
293: .'<td style="background-color:'.$color.';">');
294: $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
295: $r->print("$topLevelRight / $topLevelParts</td>"
296: .&Apache::loncommon::end_data_table_row());
297: }
298:
299: if ($showPoints) {
300: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
301:
302: $title = $showPoints ? "Points" : "Parts Done";
303: my $totaltitle = $showPoints ? &mt("Awarded Total Points") : &mt("Total Parts Done");
304: $r->print(&Apache::loncommon::start_data_table_row()
305: .'<td colspan="2" align="right">'.$totaltitle.': <b>'.$totalRight.'</b><br />');
306: $r->print(&mt('Max Possible To Date')." $maxHelpLink: <b>$totalPossible</b><br />");
307: $title = $showPoints ? "Points" : "Parts";
308: $r->print(&mt("Total $title In Course").': <b>'.$totalParts.'</b></td>'
309: .&Apache::loncommon::end_data_table_row());
310: }
311:
312: $r->print(&Apache::loncommon::end_data_table()
313: .&Apache::loncommon::end_page());
314:
315: return OK;
316: }
317:
318: # Pass this two refs to arrays for the start and end color, and a number
319: # from 0 to 1 for how much of the latter you want to mix in. It will
320: # return a string ready to show ("#FFC309");
321: sub mixColors {
322: my $start = shift;
323: my $end = shift;
324: my $ratio = shift;
325:
326: my ($a,$b);
327: my $final = "";
328: $a = $start->[0]; $b = $end->[0];
329: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
330: $a = $start->[1]; $b = $end->[1];
331: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
332: $a = $start->[2]; $b = $end->[2];
333: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
334:
335: $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
336: return "#" . $final;
337: }
338:
339: 1;
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