1: # The LearningOnline Network with CAPA
2: # Quick Student Grades Display
3: #
4: # $Id: lonquickgrades.pm,v 1.44 2008/12/10 21:46:58 kaisler 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: # Created Nov. 14, 2002 by Jeremy Bowers
29:
30: package Apache::lonquickgrades;
31:
32: use strict;
33: use Apache::Constants qw(:common :http);
34: use POSIX;
35: use Apache::loncommon;
36: use Apache::lonlocal;
37: use Apache::lonnet;
38: use Apache::grades;
39:
40: sub handler {
41: my $r = shift;
42: return real_handler($r);
43: }
44:
45: sub real_handler {
46: my $r = shift;
47:
48: &Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
49:
50: # Handle header-only request
51: if ($env{'browser.mathml'}) {
52: &Apache::loncommon::content_type($r,'text/xml');
53: } else {
54: &Apache::loncommon::content_type($r,'text/html');
55: }
56: if ($r->header_only) {
57: $r->send_http_header;
58: return OK;
59: }
60:
61: # Send header, don't cache this page
62: &Apache::loncommon::no_cache($r);
63: $r->send_http_header;
64:
65: my $showPoints =
66: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'standard';
67: my $notshowSPRSlink =
68: $env{'course.'.$env{'request.course.id'}.'.grading'} eq 'external';
69:
70: # Create the nav map
71: my $navmap = Apache::lonnavmaps::navmap->new();
72:
73: if (!defined($navmap)) {
74: my $requrl = $r->uri;
75: $env{'user.error.msg'} = "$requrl:bre:0:0:Navamp initialization failed.";
76: return HTTP_NOT_ACCEPTABLE;
77: }
78:
79: # Keep this hash in sync with %statusIconMap in lonnavmaps; they
80: # should match color/icon
81: my $res = $navmap->firstResource(); # temp resource to access constants
82:
83: # Header
84: my $title = $showPoints ? "Points Display" : "Completed Problems Display";
85: my @brcrum = [{href=>"/adm/quickgrades",text => "Points Display"}];
86: $r->print(&Apache::loncommon::start_page($title,undef,{bread_crumbs => @brcrum}));
87:
88: if (!$showPoints && !$notshowSPRSlink ) {
89: $r->print('<p>'
90: .&mt('This screen shows how many problems (or problem parts) you have completed'
91: .', and how many you have not yet done.'
92: .' You can also look at [_1]a detailed score sheet[_2].'
93: ,'<a href="/adm/studentcalc">','</a>')
94: .'</p>');
95: }
96:
97: $r->print('<p class="LC_info">'.&mt('This may take a few moments to display.').'</p>');
98:
99: $r->rflush();
100:
101: # End navmap using boilerplate
102:
103: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
104: my $depth = 1;
105: $iterator->next(); # ignore first BEGIN_MAP
106: my $curRes = $iterator->next();
107:
108: # General overview of the following: Walk along the course resources.
109: # For every problem in the resource, tell its parent maps how many
110: # parts and how many parts correct it has. After that, each map will
111: # have a count of the total parts underneath it, correct and otherwise.
112: # After that, we will walk through the course again and read off
113: # maps in order, with their data.
114: # (If in the future people decide not to be cumulative, only add
115: # the counts to the parent map.)
116: # For convenience, "totalParts" is also "totalPoints" when we're looking
117: # at points; I can't come up with a variable name that makes sense
118: # equally for both cases.
119:
120: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
121: my $totalAttempted = 0;
122: my $now = time();
123: my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
124:
125: # Pre-run: Count parts correct
126: while ( $depth > 0 ) {
127: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
128: if ($curRes == $iterator->END_MAP()) { $depth--; }
129:
130: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
131: {
132: # Get number of correct, incorrect parts
133: my $parts = $curRes->parts();
134: my $partsRight = 0;
135: my $partsCount = 0;
136: my $partsAttempted = 0;
137: my $stack = $iterator->getStack();
138:
139: for my $part (@{$parts}) {
140: my $completionStatus = $curRes->getCompletionStatus($part);
141: my $dateStatus = $curRes->getDateStatus($part);
142:
143: if ($completionStatus == $curRes->EXCUSED()) {
144: next;
145: }
146: if ($showPoints) {
147: my $score = 0;
148: # If we're not telling status and the answer date isn't passed yet,
149: # it's an "attempted" point
150: if ((($curRes->problemstatus($part) eq 'no') ||
151: ($curRes->problemstatus($part) eq 'no_feedback_ever')) &&
152: ($dateStatus != $curRes->ANSWER_OPEN)) {
153: my $status = $curRes->simpleStatus($part);
154: if ($status == $curRes->ATTEMPTED) {
155: $partsAttempted += $curRes->weight($part);
156: $totalAttempted += $partsAttempted;
157: }
158: } else {
159: $score = &Apache::grades::compute_points($curRes->weight($part), $curRes->awarded($part));
160: }
161: $partsRight += $score;
162: $totalRight += $score;
163: $partsCount += $curRes->weight($part);
164:
165: if ($curRes->opendate($part) < $now) {
166: $totalPossible += $curRes->weight($part);
167: }
168: $totalParts += $curRes->weight($part);
169: } else {
170: my $status = $curRes->simpleStatus($part);
171: my $thisright = 0;
172: $partsCount++;
173: if ($status == $curRes->CORRECT ||
174: $status == $curRes->PARTIALLY_CORRECT ) {
175: $partsRight++;
176: $totalRight++;
177: $thisright = 1;
178: }
179:
180: if ($status == $curRes->ATTEMPTED) {
181: $partsAttempted++;
182: $totalAttempted++;
183: }
184:
185: my $dateStatus = $curRes->getDateStatus($part);
186: $totalParts++;
187: if ($curRes->opendate($part) < $now) {
188: $totalPossible++;
189: }
190: }
191: }
192:
193: if ($depth == 1) { # in top-level only
194: $topLevelParts += $partsCount;
195: $topLevelRight += $partsRight;
196: $topLevelAttempted += $partsAttempted;
197: }
198:
199: # Crawl down stack and record parts correct and total
200: for my $res (@{$stack}) {
201: if (ref($res) && $res->is_map()) {
202: if (!defined($res->{DATA}->{CHILD_PARTS})) {
203: $res->{DATA}->{CHILD_PARTS} = 0;
204: $res->{DATA}->{CHILD_CORRECT} = 0;
205: $res->{DATA}->{CHILD_ATTEMPTED} = 0;
206: }
207:
208: $res->{DATA}->{CHILD_PARTS} += $partsCount;
209: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
210: $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
211: }
212: }
213: }
214: $curRes = $iterator->next();
215: }
216:
217: $iterator = $navmap->getIterator(undef, undef, undef, 1);
218: $depth = 1;
219: $iterator->next(); # ignore first BEGIN_MAP
220: $curRes = $iterator->next();
221:
222: my @start = (255, 255, 192);
223: my @end = (0, 192, 0);
224:
225: my $indentString = ' ';
226:
227: # Second pass: Print the maps.
228: $r->print(&Apache::loncommon::start_data_table()
229: .&Apache::loncommon::start_data_table_header_row()
230: .'<th>'.&mt('Folder').'</th>');
231: $title = &mt($showPoints ? "Points Scored" : "Done");
232: if ($totalAttempted) {
233: $title .= " / " . &mt("Attempted");
234: }
235: $r->print("<th>$title / ".&mt('Total').'</td>'
236: .&Apache::loncommon::end_data_table_header_row());
237: while ($depth > 0) {
238: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
239: if ($curRes == $iterator->END_MAP()) { $depth--; }
240:
241: if (ref($curRes) && $curRes->is_map()) {
242: my $title = $curRes->compTitle();
243:
244: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
245: my $total = $curRes->{DATA}->{CHILD_PARTS};
246: my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
247:
248: if ($total > 0) {
249: my $ratio;
250: $ratio = $correct / $total;
251: my $color = mixColors(\@start, \@end, $ratio);
252: $r->print(&Apache::loncommon::start_data_table_row()
253: .'<td style="background-color:'.$color.';">');
254:
255: my $thisIndent = '';
256: for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
257:
258: $r->print("$thisIndent$title</td>");
259: if ($totalAttempted) {
260: $r->print("<td valign='top'>$thisIndent<nobr>$correct / $attempted / $total</nobr></td>"
261: .&Apache::loncommon::end_data_table_row());
262: } else {
263: $r->print("<td valign='top'>$thisIndent<nobr>$correct / $total</nobr></td>"
264: .&Apache::loncommon::end_data_table_row());
265: }
266: }
267: }
268:
269: $curRes = $iterator->next();
270: }
271:
272: # If there were any problems at the top level, print an extra "catchall"
273: if ($topLevelParts > 0) {
274: my $ratio = $topLevelRight / $topLevelParts;
275: my $color = mixColors(\@start, \@end, $ratio);
276: $r->print(&Apache::loncommon::start_data_table_row()
277: .'<td style="background-color:'.$color.';">');
278: $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
279: $r->print("$topLevelRight / $topLevelParts</td>"
280: .&Apache::loncommon::end_data_table_row());
281: }
282:
283: if ($showPoints) {
284: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
285:
286: $title = $showPoints ? "Points" : "Parts Done";
287: my $totaltitle = $showPoints ? &mt("Awarded Total Points") : &mt("Total Parts Done");
288: $r->print(&Apache::loncommon::start_data_table_row()
289: .'<td colspan="2" align="right">'.$totaltitle.': <b>'.$totalRight.'</b><br>');
290: $r->print(&mt("Max Possible To Date")." $maxHelpLink: <b>$totalPossible</b><br>");
291: $title = $showPoints ? "Points" : "Parts";
292: $r->print(&mt("Total $title In Course").': <b>'.$totalParts.'</b></td>'
293: .&Apache::loncommon::end_data_table_row());
294: }
295:
296: $r->print(&Apache::loncommon::end_data_table()
297: .&Apache::loncommon::end_page());
298:
299: return OK;
300: }
301:
302: # Pass this two refs to arrays for the start and end color, and a number
303: # from 0 to 1 for how much of the latter you want to mix in. It will
304: # return a string ready to show ("#FFC309");
305: sub mixColors {
306: my $start = shift;
307: my $end = shift;
308: my $ratio = shift;
309:
310: my ($a,$b);
311: my $final = "";
312: $a = $start->[0]; $b = $end->[0];
313: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
314: $a = $start->[1]; $b = $end->[1];
315: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
316: $a = $start->[2]; $b = $end->[2];
317: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
318:
319: $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
320: return "#" . $final;
321: }
322:
323: 1;
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