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: # Create the nav map
67: my $navmap = Apache::lonnavmaps::navmap->new(
68: $ENV{"request.course.fn"}.".db",
69: $ENV{"request.course.fn"}."_parms.db", 1, 0);
70:
71: if (!defined($navmap)) {
72: my $requrl = $r->uri;
73: $ENV{'user.error.msg'} = "$requrl:bre:0:0:Navamp initialization failed.";
74: return HTTP_NOT_ACCEPTABLE;
75: }
76:
77: # Keep this hash in sync with %statusIconMap in lonnavmaps; they
78: # should match color/icon
79: my $res = $navmap->firstResource(); # temp resource to access constants
80:
81: # Header
82: $r->print(&Apache::loncommon::bodytag('Quick Score Display','',
83: ''));
84:
85: $r->print(<<HEADER);
86: <p>This screen shows how many problems (or problem parts) you have completed, and
87: how many you have not yet done. You can also look at <a href="/adm/studentcalc">a detailed
88: score sheet</a>.</p>
89: HEADER
90:
91: $navmap->init();
92:
93: # End navmap using boilerplate
94:
95: my $iterator = $navmap->getIterator(undef, undef, undef, 1);
96: my $depth = 1;
97: $iterator->next(); # ignore first BEGIN_MAP
98: my $curRes = $iterator->next();
99:
100: # General overview of the following: Walk along the course resources.
101: # For every problem in the resource, tell its parent maps how many
102: # parts and how many parts correct it has. After that, each map will
103: # have a count of the total parts underneath it, correct and otherwise.
104: # After that, we will walk through the course again and read off
105: # maps in order, with their data.
106: # (If in the future people decide not to be cumulative, only add
107: # the counts to the parent map.)
108:
109: my $totalParts = 0; my $totalPossible = 0; my $totalRight = 0;
110: my $now = time();
111:
112: # Pre-run: Count parts correct
113: while ( $depth > 0 ) {
114: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
115: if ($curRes == $iterator->END_MAP()) { $depth--; }
116:
117: if (ref($curRes) && $curRes->is_problem() && !$curRes->randomout)
118: {
119: # Get number of correct, incorrect parts
120: my $parts = $curRes->parts();
121: $totalParts += $curRes->countParts();
122: my $partsRight = 0;
123: my $stack = $iterator->getStack();
124:
125: for my $part (@{$parts}) {
126: my $status = $curRes->getCompletionStatus($part);
127: my $thisright = 0;
128: if ($status == $curRes->CORRECT || $status == $curRes->CORRECT_BY_OVERRIDE
129: || $status == $curRes->EXCUSED || $status == $curRes->ANSWER_SUBMITTED) {
130: $partsRight++;
131: $totalRight++;
132: $thisright = 1;
133: }
134:
135: my $dateStatus = $curRes->getDateStatus($part);
136: if ($curRes->opendate($part) < $now) {
137: $totalPossible++;
138: }
139: }
140:
141: # Crawl down stack and record parts correct and total
142: for my $res (@{$stack}) {
143: if (ref($res) && $res->is_map()) {
144: if (!defined($res->{DATA}->{CHILD_PARTS})) {
145: $res->{DATA}->{CHILD_PARTS} = 0;
146: $res->{DATA}->{CHILD_CORRECT} = 0;
147: }
148:
149: $res->{DATA}->{CHILD_PARTS} += scalar(@{$parts});
150: $res->{DATA}->{CHILD_CORRECT} += $partsRight;
151: }
152: }
153: }
154: $curRes = $iterator->next();
155: }
156:
157: $iterator = $navmap->getIterator(undef, undef, undef, 1);
158: $depth = 1;
159: $iterator->next(); # ignore first BEGIN_MAP
160: $curRes = $iterator->next();
161:
162: my @start = (255, 255, 192);
163: my @end = (0, 192, 0);
164:
165: my $indentString = ' ';
166:
167: my $unaccountedTotal = $totalParts;
168: my $unaccountedCorrect = $totalRight;
169:
170: # Second pass: Print the maps.
171: $r->print('<table cellspacing="3" border="2"><tr><td align="center"><b>Sequence</b></td>');
172: $r->print('<td align="center">Done / Total</td><tr>' . "\n\n");
173: while ($depth > 0) {
174: if ($curRes == $iterator->BEGIN_MAP()) {$depth++;}
175: if ($curRes == $iterator->END_MAP()) { $depth--; }
176:
177: if (ref($curRes) && $curRes->is_map()) {
178: my $title = $curRes->compTitle();
179:
180: my $correct = $curRes->{DATA}->{CHILD_CORRECT};
181: my $total = $curRes->{DATA}->{CHILD_PARTS};
182:
183: $unaccountedTotal -= $total;
184: $unaccountedCorrect -= $correct;
185:
186: if ($total > 0) {
187: my $ratio;
188: $ratio = $correct / $total;
189: my $color = mixColors(\@start, \@end, $ratio);
190: $r->print("<tr><td bgcolor='$color'>");
191:
192: for (my $i = 1; $i < $depth; $i++) { $r->print($indentString); }
193:
194: $r->print("$title</td>");
195: $r->print("<td align='center'>$correct / $total</td></tr>\n");
196: }
197: }
198:
199: $curRes = $iterator->next();
200: }
201:
202: # If there were any problems at the top level, print an extra "catchall"
203: if ($unaccountedTotal > 0) {
204: my $ratio = $unaccountedCorrect / $unaccountedTotal;
205: my $color = mixColors(\@start, \@end, $ratio);
206: $r->print("<tr><td bgcolor='$color'>");
207: $r->print("Problems Not Contained In A Folder</td><td align='center'>");
208: $r->print("$unaccountedCorrect / $unaccountedTotal</td></tr>");
209: }
210:
211: my $maxHelpLink = Apache::loncommon::help_open_topic("Quick_Grades_Possibly_Correct");
212:
213: $r->print("<tr><td colspan='2' align='right'>Total Parts Done: <b>$totalRight</b><br>");
214: $r->print("Max Possible To Date $maxHelpLink: <b>$totalPossible</b><br>");
215: $r->print("Total Parts In Course: <b>$totalParts</b></td></tr>\n\n");
216:
217:
218: $r->print("</table></body></html>");
219:
220: $navmap->untieHashes();
221:
222: return OK;
223: }
224:
225: # Pass this two refs to arrays for the start and end color, and a number
226: # from 0 to 1 for how much of the latter you want to mix in. It will
227: # return a string ready to show ("#FFC309");
228: sub mixColors {
229: my $start = shift;
230: my $end = shift;
231: my $ratio = shift;
232:
233: my ($a,$b);
234: my $final = "";
235: $a = $start->[0]; $b = $end->[0];
236: my $mix1 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
237: $a = $start->[1]; $b = $end->[1];
238: my $mix2 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
239: $a = $start->[2]; $b = $end->[2];
240: my $mix3 = POSIX::floor((1-$ratio)*$a + $ratio*$b);
241:
242: $final = sprintf "%2x%2x%2x", $mix1, $mix2, $mix3;
243: return "#" . $final;
244: }
245:
246: 1;
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