1: # The LearningOnline Network with CAPA
2: # Quick Student Grades Display
3: #
4: # $Id: lonquickgrades.pm,v 1.35 2005/01/03 14:46:41 albertel 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:
38: sub handler {
39: my $r = shift;
40: return real_handler($r);
41: }
42:
43: sub real_handler {
44: my $r = shift;
45:
46: &Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
47:
48: # Handle header-only request
49: if ($r->header_only) {
50: if ($ENV{'browser.mathml'}) {
51: &Apache::loncommon::content_type($r,'text/xml');
52: } else {
53: &Apache::loncommon::content_type($r,'text/html');
54: }
55: $r->send_http_header;
56: return OK;
57: }
58:
59: # Send header, don't cache this page
60: if ($ENV{'browser.mathml'}) {
61: &Apache::loncommon::content_type($r, 'text/xml');
62: } else {
63: &Apache::loncommon::content_type($r, 'text/html');
64: }
65: &Apache::loncommon::no_cache($r);
66: $r->send_http_header;
67:
68: my $showPoints =
69: $ENV{'course.'.$ENV{'request.course.id'}.'.grading'} eq 'standard';
70: my $notshowSPRSlink =
71: $ENV{'course.'.$ENV{'request.course.id'}.'.grading'} eq 'external';
72:
73: # Create the nav map
74: my $navmap = Apache::lonnavmaps::navmap->new();
75:
76: if (!defined($navmap)) {
77: my $requrl = $r->uri;
78: $ENV{'user.error.msg'} = "$requrl:bre:0:0:Navamp initialization failed.";
79: return HTTP_NOT_ACCEPTABLE;
80: }
81:
82: # Keep this hash in sync with %statusIconMap in lonnavmaps; they
83: # should match color/icon
84: my $res = $navmap->firstResource(); # temp resource to access constants
85:
86: # Header
87: my $title = $showPoints ? "Points Display" : "Completed Problems Display";
88: $r->print(&Apache::loncommon::bodytag($title, '', ''));
89:
90: if (!$showPoints && !$notshowSPRSlink ) {
91: $r->print(<<HEADER);
92: <p>This screen shows how many problems (or problem parts) you have completed, and
93: how many you have not yet done. You can also look at <a href="/adm/studentcalc">a detailed
94: score sheet</a>.</p>
95: HEADER
96: }
97:
98: $r->print("This may take a few moments to display.");
99:
100: $r->rflush();
101:
102: # End navmap using boilerplate
103:
104: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
105: my $depth = 1;
106: $iterator->next(); # ignore first BEGIN_MAP
107: my $curRes = $iterator->next();
108:
109: # General overview of the following: Walk along the course resources.
110: # For every problem in the resource, tell its parent maps how many
111: # parts and how many parts correct it has. After that, each map will
112: # have a count of the total parts underneath it, correct and otherwise.
113: # After that, we will walk through the course again and read off
114: # maps in order, with their data.
115: # (If in the future people decide not to be cumulative, only add
116: # the counts to the parent map.)
117: # For convenience, "totalParts" is also "totalPoints" when we're looking
118: # at points; I can't come up with a variable name that makes sense
119: # equally for both cases.
120:
121: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
122: my $totalAttempted = 0;
123: my $now = time();
124: my $topLevelParts = 0; my $topLevelRight = 0; my $topLevelAttempted = 0;
125:
126: # Pre-run: Count parts correct
127: while ( $depth > 0 ) {
128: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
129: if ($curRes == $iterator->END_MAP()) { $depth--; }
130:
131: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
132: {
133: # Get number of correct, incorrect parts
134: my $parts = $curRes->parts();
135: my $partsRight = 0;
136: my $partsCount = 0;
137: my $partsAttempted = 0;
138: my $stack = $iterator->getStack();
139:
140: for my $part (@{$parts}) {
141: my $completionStatus = $curRes->getCompletionStatus($part);
142: my $dateStatus = $curRes->getDateStatus($part);
143:
144: if ($completionStatus == $curRes->EXCUSED()) {
145: next;
146: }
147: if ($showPoints) {
148: my $score = 0;
149: # If we're not telling status and the answer date isn't passed yet,
150: # it's an "attempted" point
151: if ($curRes->problemstatus($part) eq 'no' &&
152: ($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 = $curRes->weight($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: $partsRight++;
175: $totalRight++;
176: $thisright = 1;
177: }
178:
179: if ($status == $curRes->ATTEMPTED) {
180: $partsAttempted++;
181: $totalAttempted++;
182: }
183:
184: my $dateStatus = $curRes->getDateStatus($part);
185: $totalParts++;
186: if ($curRes->opendate($part) < $now) {
187: $totalPossible++;
188: }
189: }
190: }
191:
192: if ($depth == 1) { # in top-level only
193: $topLevelParts += $partsCount;
194: $topLevelRight += $partsRight;
195: $topLevelAttempted += $partsAttempted;
196: }
197:
198: # Crawl down stack and record parts correct and total
199: for my $res (@{$stack}) {
200: if (ref($res) && $res->is_map()) {
201: if (!defined($res->{DATA}->{CHILD_PARTS})) {
202: $res->{DATA}->{CHILD_PARTS} = 0;
203: $res->{DATA}->{CHILD_CORRECT} = 0;
204: $res->{DATA}->{CHILD_ATTEMPTED} = 0;
205: }
206:
207: $res->{DATA}->{CHILD_PARTS} += $partsCount;
208: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
209: $res->{DATA}->{CHILD_ATTEMPTED} += $partsAttempted;
210: }
211: }
212: }
213: $curRes = $iterator->next();
214: }
215:
216: $iterator = $navmap->getIterator(undef, undef, undef, 1);
217: $depth = 1;
218: $iterator->next(); # ignore first BEGIN_MAP
219: $curRes = $iterator->next();
220:
221: my @start = (255, 255, 192);
222: my @end = (0, 192, 0);
223:
224: my $indentString = ' ';
225:
226: # Second pass: Print the maps.
227: $r->print('<table cellspacing="3" border="2"><tr><td align="center"><b>' .
228: &mt('Folder') . '</b></td>');
229: $title = &mt($showPoints ? "Points Scored" : "Done");
230: if ($totalAttempted) {
231: $title .= " / " . &mt("Attempted");
232: }
233: $r->print("<td align='center'>$title / "
234: . &mt('Total') . "</td><tr>\n\n");
235: while ($depth > 0) {
236: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
237: if ($curRes == $iterator->END_MAP()) { $depth--; }
238:
239: if (ref($curRes) && $curRes->is_map()) {
240: my $title = $curRes->compTitle();
241:
242: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
243: my $total = $curRes->{DATA}->{CHILD_PARTS};
244: my $attempted = $curRes->{DATA}->{CHILD_ATTEMPTED};
245:
246: if ($total > 0) {
247: my $ratio;
248: $ratio = $correct / $total;
249: my $color = mixColors(\@start, \@end, $ratio);
250: $r->print("<tr><td bgcolor='$color'>");
251:
252: my $thisIndent = '';
253: for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
254:
255: $r->print("$thisIndent$title</td>");
256: if ($totalAttempted) {
257: $r->print("<td valign='top'>$thisIndent<nobr>$correct / $attempted / $total</nobr></td></tr>\n");
258: } else {
259: $r->print("<td valign='top'>$thisIndent<nobr>$correct / $total</nobr></td></tr>\n");
260: }
261: }
262: }
263:
264: $curRes = $iterator->next();
265: }
266:
267: # If there were any problems at the top level, print an extra "catchall"
268: if ($topLevelParts > 0) {
269: my $ratio = $topLevelRight / $topLevelParts;
270: my $color = mixColors(\@start, \@end, $ratio);
271: $r->print("<tr><td bgcolor='$color'>");
272: $r->print(&mt("Problems Not Contained In A Folder")."</td><td>");
273: $r->print("$topLevelRight / $topLevelParts</td></tr>");
274: }
275:
276: if ($showPoints) {
277: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
278:
279: $title = $showPoints ? "Points" : "Parts Done";
280:
281: $r->print("<tr><td colspan='2' align='right'>Total $title: <b>$totalRight</b><br>");
282: $r->print(&mt("Max Possible To Date")." $maxHelpLink: <b>$totalPossible</b><br>");
283: $title = $showPoints ? "Points" : "Parts";
284: $r->print(&mt("Total $title In Course").": <b>$totalParts</b></td></tr>\n\n");
285: }
286:
287: $r->print("</table></body></html>");
288:
289: return OK;
290: }
291:
292: # Pass this two refs to arrays for the start and end color, and a number
293: # from 0 to 1 for how much of the latter you want to mix in. It will
294: # return a string ready to show ("#FFC309");
295: sub mixColors {
296: my $start = shift;
297: my $end = shift;
298: my $ratio = shift;
299:
300: my ($a,$b);
301: my $final = "";
302: $a = $start->[0]; $b = $end->[0];
303: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
304: $a = $start->[1]; $b = $end->[1];
305: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
306: $a = $start->[2]; $b = $end->[2];
307: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
308:
309: $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
310: return "#" . $final;
311: }
312:
313: 1;
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