1: # The LearningOnline Network with CAPA
2: # Quick Student Grades Display
3: #
4: # $Id:
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:
36: sub handler {
37: my $r = shift;
38: return real_handler($r);
39: }
40:
41: sub real_handler {
42: my $r = shift;
43:
44: &Apache::loncommon::get_unprocessed_cgi($ENV{QUERY_STRING});
45:
46: # Handle header-only request
47: if ($r->header_only) {
48: if ($ENV{'browser.mathml'}) {
49: $r->content_type('text/xml');
50: } else {
51: $r->content_type('text/html');
52: }
53: $r->send_http_header;
54: return OK;
55: }
56:
57: # Send header, don't cache this page
58: if ($ENV{'browser.mathml'}) {
59: $r->content_type('text/xml');
60: } else {
61: $r->content_type('text/html');
62: }
63: &Apache::loncommon::no_cache($r);
64: $r->send_http_header;
65:
66: my $showPoints = $ENV{'course.'.$ENV{'request.course.id'}.'.grading'} eq 'standard';
67:
68: # Create the nav map
69: my $navmap = Apache::lonnavmaps::navmap->new(
70: $ENV{"request.course.fn"}.".db",
71: $ENV{"request.course.fn"}."_parms.db", 1, 0, 1);
72:
73: if (!defined($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 ? "Quick Points Display" : "Quick Completed Problems Display";
85: $r->print(&Apache::loncommon::bodytag($title, '', ''));
86:
87: if ($showPoints) {
88: $r->print(<<HEADER);
89: <p>This screen shows how many problems (or problem parts) you have completed, and
90: how many you have not yet done. You can also look at <a href="/adm/studentcalc">a detailed
91: score sheet</a>.</p>
92: HEADER
93: } else {
94: $r->print(<<HEADER);
95: <p>This screen shows how many points you have. You can also look at
96: <a href="/adm/studentcalc">a detailed score sheet</a>.</p>
97: HEADER
98: }
99:
100: $r->print("<p>This may take a few moments to display.</p>");
101:
102: $r->rflush();
103:
104: $navmap->init();
105:
106: # End navmap using boilerplate
107:
108: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
109: my $depth = 1;
110: $iterator->next(); # ignore first BEGIN_MAP
111: my $curRes = $iterator->next();
112:
113: # General overview of the following: Walk along the course resources.
114: # For every problem in the resource, tell its parent maps how many
115: # parts and how many parts correct it has. After that, each map will
116: # have a count of the total parts underneath it, correct and otherwise.
117: # After that, we will walk through the course again and read off
118: # maps in order, with their data.
119: # (If in the future people decide not to be cumulative, only add
120: # the counts to the parent map.)
121: # For convenience, "totalParts" is also "totalPoints" when we're looking
122: # at points; I can't come up with a variable name that makes sense
123: # equally for both cases.
124:
125: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
126: my $now = time();
127: my $topLevelParts = 0; my $topLevelRight = 0;
128:
129: # Pre-run: Count parts correct
130: while ( $depth > 0 ) {
131: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
132: if ($curRes == $iterator->END_MAP()) { $depth--; }
133:
134: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
135: {
136: # Get number of correct, incorrect parts
137: my $parts = $curRes->parts();
138: $totalParts += $curRes->countParts();
139: my $partsRight = 0;
140: my $partsCount = 0;
141: my $stack = $iterator->getStack();
142:
143: for my $part (@{$parts}) {
144: if ($showPoints) {
145: my $score = $curRes->weight() * $curRes->awarded();
146: $partsRight += $score;
147: $totalRight += $score;
148: $partsCount += $curRes->weight();
149:
150: if ($curRes->opendate($part) < $now) {
151: $totalPossible += $curRes->weight();
152: }
153: } else {
154: my $status = $curRes->getCompletionStatus($part);
155: my $thisright = 0;
156: $partsCount++;
157: if ($status == $curRes->CORRECT ||
158: $status == $curRes->CORRECT_BY_OVERRIDE ||
159: $status == $curRes->EXCUSED ||
160: $status == $curRes->ANSWER_SUBMITTED) {
161: $partsRight++;
162: $totalRight++;
163: $thisright = 1;
164: }
165:
166: my $dateStatus = $curRes->getDateStatus($part);
167: if ($curRes->opendate($part) < $now) {
168: $totalPossible++;
169: }
170: }
171: }
172:
173: if ($depth == 1) { # in top-level only
174: $topLevelParts += scalar(@{$parts});
175: $topLevelRight += $partsRight;
176: $r->print($curRes->compTitle() . '<br>');
177: }
178:
179: # Crawl down stack and record parts correct and total
180: for my $res (@{$stack}) {
181: if (ref($res) && $res->is_map()) {
182: if (!defined($res->{DATA}->{CHILD_PARTS})) {
183: $res->{DATA}->{CHILD_PARTS} = 0;
184: $res->{DATA}->{CHILD_CORRECT} = 0;
185: }
186:
187: $res->{DATA}->{CHILD_PARTS} += $partsCount;
188: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
189: }
190: }
191: }
192: $curRes = $iterator->next();
193: }
194:
195: $iterator = $navmap->getIterator(undef, undef, undef, 1);
196: $depth = 1;
197: $iterator->next(); # ignore first BEGIN_MAP
198: $curRes = $iterator->next();
199:
200: my @start = (255, 255, 192);
201: my @end = (0, 192, 0);
202:
203: my $indentString = ' ';
204:
205: # Second pass: Print the maps.
206: $r->print('<table cellspacing="3" border="2"><tr><td align="center"><b>Sequence</b></td>');
207: $r->print('<td align="center">Done / Total</td><tr>' . "\n\n");
208: while ($depth > 0) {
209: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
210: if ($curRes == $iterator->END_MAP()) { $depth--; }
211:
212: if (ref($curRes) && $curRes->is_map()) {
213: my $title = $curRes->compTitle();
214:
215: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
216: my $total = $curRes->{DATA}->{CHILD_PARTS};
217:
218: if ($total > 0) {
219: my $ratio;
220: $ratio = $correct / $total;
221: my $color = mixColors(\@start, \@end, $ratio);
222: $r->print("<tr><td bgcolor='$color'>");
223:
224: my $thisIndent = '';
225: for (my $i = 1; $i < $depth; $i++) { $thisIndent .= $indentString; }
226:
227: $r->print("$thisIndent$title</td>");
228: $r->print("<td valign='top'>$thisIndent<nobr>$correct / $total</nobr></td></tr>\n");
229: }
230: }
231:
232: $curRes = $iterator->next();
233: }
234:
235: # If there were any problems at the top level, print an extra "catchall"
236: if ($topLevelParts > 0) {
237: my $ratio = $topLevelRight / $topLevelParts;
238: my $color = mixColors(\@start, \@end, $ratio);
239: $r->print("<tr><td bgcolor='$color'>");
240: $r->print("Problems Not Contained In A Folder</td><td>");
241: $r->print("$topLevelRight / $topLevelParts</td></tr>");
242: }
243:
244: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
245:
246: $title = $showPoints ? "Points" : "Parts Done";
247:
248: $r->print("<tr><td colspan='2' align='right'>Total $title: <b>$totalRight</b><br>");
249: $r->print("Max Possible To Date $maxHelpLink: <b>$totalPossible</b><br>");
250: $title = $showPoints ? "Points" : "Parts";
251: $r->print("Total $title In Course: <b>$totalParts</b></td></tr>\n\n");
252:
253:
254: $r->print("</table></body></html>");
255:
256: $navmap->untieHashes();
257:
258: return OK;
259: }
260:
261: # Pass this two refs to arrays for the start and end color, and a number
262: # from 0 to 1 for how much of the latter you want to mix in. It will
263: # return a string ready to show ("#FFC309");
264: sub mixColors {
265: my $start = shift;
266: my $end = shift;
267: my $ratio = shift;
268:
269: my ($a,$b);
270: my $final = "";
271: $a = $start->[0]; $b = $end->[0];
272: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
273: $a = $start->[1]; $b = $end->[1];
274: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
275: $a = $start->[2]; $b = $end->[2];
276: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
277:
278: $final = sprintf "%02x%02x%02x", $mix1, $mix2, $mix3;
279: return "#" . $final;
280: }
281:
282: 1;
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