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[LON-CAPA] /
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lontrackstudent.pm
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1.6:
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Sun Aug 29 19:58:32 2004 UTC (19 years, 8 months ago) by
matthew
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Removed 'orginating server' column.
Reduced number of lines requested to 500.
Better handling of tables.
Changed style of table to be much less colorful.
Reduced the number of useless pieces of information output to the user.
1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lontrackstudent.pm,v 1.6 2004/08/29 19:58:32 matthew Exp $
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27: ###
28:
29: =pod
30:
31: =head1 NAME
32:
33: lontrackstudent
34:
35: =head1 SYNOPSIS
36:
37: Track student progress through course materials
38:
39: =over 4
40:
41: =cut
42:
43: package Apache::lontrackstudent;
44:
45: use strict;
46: use Apache::Constants qw(:common :http);
47: use Apache::lonnet();
48: use Apache::lonlocal;
49: use Time::HiRes;
50:
51: sub get_data {
52: my ($r,$prog_state,$navmap,$mode) = @_;
53: ##
54: ## Compose the query
55: &Apache::lonhtmlcommon::Update_PrgWin
56: ($r,$prog_state,&mt('Composing Query'));
57: #
58: my $query = &build_query($mode);
59: &Apache::lonnet::logthis('sending query '.$query);
60: ##
61: ## Send it along
62: my $home = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
63: my $reply=&Apache::lonnet::metadata_query($query,undef,undef,[$home]);
64: if (ref($reply) ne 'HASH') {
65: $r->print('<h2>'.
66: &mt('Error contacting home server for course: [_1]',
67: $reply).
68: '</h2>');
69: return;
70: }
71: my $results_file = $r->dir_config('lonDaemons').'/tmp/'.$reply->{$home};
72: my $endfile = $results_file.'.end';
73: ##
74: ## Check for the results
75: &Apache::lonhtmlcommon::Update_PrgWin
76: ($r,$prog_state,&mt('Waiting for results'));
77: my $maxtime = 500;
78: my $starttime = time;
79: while (! -e $endfile && (time-$starttime < $maxtime)) {
80: &Apache::lonhtmlcommon::Update_PrgWin
81: ($r,$prog_state,&mt('Waiting up to [_1] seconds for results',
82: $starttime+$maxtime-time));
83: sleep(1);
84: }
85: if (! -e $endfile) {
86: $r->print('<h2>'.
87: &mt('Unable to retrieve data.').'</h2>');
88: $r->print(&mt('Please try again in a few minutes.'));
89: return;
90: }
91: # $r->print('<h2>'.&mt('Elapsed Time = [_1] seconds',
92: # time-$starttime).'</h2>');
93: $r->rflush();
94: &Apache::lonhtmlcommon::Update_PrgWin
95: ($r,$prog_state,&mt('Parsing results'));
96: # $r->print('<h2>'.
97: # &mt('Reloading this page may result in newer data').
98: # '</h2>');
99: &output_results($r,$results_file,$navmap,$mode);
100: &Apache::lonhtmlcommon::Update_PrgWin($r,$prog_state,&mt('Finished!'));
101: return;
102: }
103:
104: sub build_query {
105: my ($mode) = @_;
106: my $cid = $ENV{'request.course.id'};
107: my $domain = $ENV{'course.'.$cid.'.domain'};
108: my $home = $ENV{'course.'.$cid.'.home'};
109: my $course = $ENV{'course.'.$cid.'.num'};
110: my $prefix = $course.'_'.$domain.'_';
111: #
112: my $student_table = $prefix.'students';
113: my $res_table = $prefix.'resource';
114: my $action_table = $prefix.'actions';
115: my $machine_table = $prefix.'machine_table';
116: my $activity_table = $prefix.'activity';
117: #
118: my $query;
119: if ($mode eq 'full_class') {
120: $query = qq{
121: SELECT B.resource,A.time,C.student,A.action,E.machine,A.action_values
122: FROM $activity_table AS A
123: LEFT JOIN $res_table AS B ON B.res_id=A.res_id
124: LEFT JOIN $student_table AS C ON C.student_id=A.student_id
125: LEFT JOIN $machine_table AS E ON E.machine_id=A.machine_id
126: WHERE A.student_id>10
127: ORDER BY A.time DESC
128: LIMIT 500
129: };
130: } elsif ($mode =~ /^student:(.*):(.*)$/) {
131: my $student = $1.':'.$2;
132: $query = qq{
133: SELECT B.resource,A.time,A.action,E.machine,A.action_values
134: FROM $activity_table AS A
135: LEFT JOIN $res_table AS B ON B.res_id=A.res_id
136: LEFT JOIN $student_table AS C ON C.student_id=A.student_id
137: LEFT JOIN $machine_table AS E ON E.machine_id=A.machine_id
138: WHERE C.student='$student'
139: ORDER BY A.time DESC
140: LIMIT 500
141: };
142: }
143: $query =~ s|$/||g;
144: return $query;
145: }
146:
147: ###################################################################
148: ###################################################################
149: sub output_results {
150: my ($r,$results_file,$navmap,$mode) = @_;
151: ##
152: ##
153: if (! open(ACTIVITYDATA,$results_file)) {
154: $r->print('<h2>'.&mt('Unable to read results file.').'</h2>'.
155: '<p>'.
156: &mt('This is a serious error and has been logged. '.
157: 'You should contact your system administrator '.
158: 'to resolve this issue.').
159: '</p>');
160: return;
161: }
162: ##
163: ##
164: my $tableheader;
165: if ($mode eq 'full_class') {
166: $tableheader =
167: '<table><tr>'.
168: '<th>'.&mt('Resource').'</th>'.
169: '<th>'.&mt('Time').'</th>'.
170: '<th>'.&mt('Student').'</th>'.
171: '<th>'.&mt('Action').'</th>'.
172: # '<th>'.&mt('Originating Server').'</th>'.
173: '<th align="left">'.&mt('Data').'</th>'.
174: '</tr>'.$/;
175: } elsif ($mode =~ /^student:(.*):(.*)$/) {
176: $tableheader =
177: '<table><tr>'.
178: '<th>'.&mt('Resource').'</th>'.
179: '<th>'.&mt('Time').'</th>'.
180: '<th>'.&mt('Action').'</th>'.
181: # '<th>'.&mt('Originating Server').'</th>'.
182: '<th align="left">'.&mt('Data').'</th>'.
183: '</tr>'.$/;
184: }
185: my $count = -1;
186: $r->rflush();
187: ##
188: ##
189: while (my $line = <ACTIVITYDATA>) {
190: chomp($line);
191: $line = &Apache::lonnet::unescape($line);
192: if (++$count % 50 == 0) {
193: if ($count != 0) {
194: $r->print('</table>'.$/);
195: $r->rflush();
196: }
197: $r->print($tableheader);
198: }
199: my ($symb,$timestamp,$student,$action,$machine,$values);
200: if ($mode eq 'full_class') {
201: ($symb,$timestamp,$student,$action,$machine,$values) =
202: map { &Apache::lonnet::unescape($_); } split(',',$line,6);
203: } else {
204: ($symb,$timestamp,$action,$machine,$values) =
205: map { &Apache::lonnet::unescape($_); } split(',',$line,5);
206: }
207: my ($title,$src);
208: if ($symb =~ m:^/adm/:) {
209: $title = $symb;
210: $src = $symb;
211: } else {
212: my $nav_res = $navmap->getBySymb($symb);
213: if (defined($nav_res)) {
214: $title = $nav_res->title();
215: $src = $nav_res->src();
216: } else {
217: if ($src =~ m|^/res|) {
218: $title = $src;
219: } elsif ($values =~ /^\s*$/ &&
220: (! defined($src) || $src =~ /^\s*$/)) {
221: next;
222: } elsif ($values =~ /^\s*$/) {
223: $values = $src;
224: } else {
225: $title = 'unable to retrieve title';
226: $src = '/dev/null';
227: }
228: }
229: }
230: my %classes;
231: my $class_count=0;
232: if (! exists($classes{$symb})) {
233: $classes{$symb} = $class_count++;
234: }
235: my $class = 'a';#.$classes{$symb};
236: #
237: if ($symb eq '/prtspool/') {
238: $class = 'print';
239: $title = 'retrieve printout';
240: } elsif ($symb =~ m|^/adm/([^/]+)|) {
241: $class = $1;
242: } elsif ($symb =~ m|^/adm/|) {
243: $class = 'adm';
244: }
245: if ($title eq 'unable to retrieve title') {
246: $title =~ s/ /\ /g;
247: $class = 'warning';
248: }
249: if (! defined($title) || $title eq '') {
250: $title = 'untitled';
251: $class = 'warning';
252: }
253: # Clean up the values
254: $values =~ s/counter=\d+$//;
255: #
256: # Build the row for output
257: my $tablerow = qq{<tr class="$class">};
258: if ($src =~ m|^/adm/|) {
259: $tablerow .=
260: '<td><nobr>'.$title.'</td>';
261: } else {
262: $tablerow .=
263: '<td><nobr>'.
264: '<a href="'.$src.'">'.$title.'</a>'.
265: '</nobr></td>';
266: }
267: $tablerow .= '<td><nobr>'.$timestamp.'</nobr></td>';
268: if ($mode eq 'full_class') {
269: $tablerow.='<td>'.$student.'</td>';
270: }
271: $tablerow .=
272: '<td>'.$action.'</td>'.
273: # '<td>'.$machine.'</td>'.
274: '<td>'.$values.'</td>'.
275: '</tr>';
276: $r->print($tablerow.$/);
277: }
278: $r->print('</table>'.$/) if (! $count % 50);
279: close(ACTIVITYDATA);
280: return;
281: }
282:
283: ###################################################################
284: ###################################################################
285: sub request_data_update {
286: my $command = 'prepare activity log';
287: my $cid = $ENV{'request.course.id'};
288: my $domain = $ENV{'course.'.$cid.'.domain'};
289: my $home = $ENV{'course.'.$cid.'.home'};
290: my $course = $ENV{'course.'.$cid.'.num'};
291: # &Apache::lonnet::logthis($command.' '.$course.' '.$domain.' '.$home);
292: my $result = &Apache::lonnet::metadata_query($command,$course,$domain,
293: [$home]);
294: return $result;
295: }
296:
297: ###################################################################
298: ###################################################################
299: sub pick_student {
300: my ($r) = @_;
301: $r->print("Sorry, cannot display classlist at this time. Come back another time.");
302: return;
303: }
304:
305: ###################################################################
306: ###################################################################
307: sub styles {
308: return <<END;
309: <style type="text/css">
310: tr.warning { background-color: \#CCCCCC; }
311: tr.chat { background-color: \#CCCCCC; }
312: tr.chatfetch { background-color: \#CCCCCC; }
313: tr.navmaps { background-color: \#CCCCCC; }
314: tr.roles { background-color: \#CCCCCC; }
315: tr.flip { background-color: \#CCCCCC; }
316: tr.adm { background-color: \#CCCCCC; }
317: tr.print { background-color: \#CCCCCC; }
318: tr.printout { background-color: \#CCCCCC; }
319: tr.parmset { background-color: \#CCCCCC; }
320: tr.grades { background-color: \#CCCCCC; }
321: </style>
322: END
323: }
324:
325: sub developer_centric_styles {
326: return <<END;
327: <style type="text/css">
328: tr.warning { background-color: red; }
329: tr.chat { background-color: yellow; }
330: tr.chatfetch { background-color: yellow; }
331: tr.navmaps { background-color: \#777777; }
332: tr.roles { background-color: \#999999; }
333: tr.flip { background-color: \#BBBBBB; }
334: tr.adm { background-color: green; }
335: tr.print { background-color: blue; }
336: tr.parmset { background-color: \#000088; }
337: tr.printout { background-color: blue; }
338: tr.grades { background-color: \#CCCCCC; }
339: </style>
340: END
341: }
342:
343: ###################################################################
344: ###################################################################
345: sub handler {
346: my $r=shift;
347: my $c = $r->connection();
348: #
349: # Check for overloading here and on the course home server
350: my $loaderror=&Apache::lonnet::overloaderror($r);
351: if ($loaderror) { return $loaderror; }
352: $loaderror=
353: &Apache::lonnet::overloaderror
354: ($r,
355: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
356: if ($loaderror) { return $loaderror; }
357: #
358: # Check for access
359: if (! &Apache::lonnet::allowed('vsa',$ENV{'request.course.id'})) {
360: $ENV{'user.error.msg'}=
361: $r->uri.":vsa:0:0:Cannot student activity for complete course";
362: if (!
363: &Apache::lonnet::allowed('vsa',
364: $ENV{'request.course.id'}.'/'.
365: $ENV{'request.course.sec'})) {
366: $ENV{'user.error.msg'}=
367: $r->uri.":vsa:0:0:Cannot view student activity with given role";
368: return HTTP_NOT_ACCEPTABLE;
369: }
370: }
371: #
372: # Send the header
373: &Apache::loncommon::no_cache($r);
374: &Apache::loncommon::content_type($r,'text/html');
375: $r->send_http_header;
376: if ($r->header_only) { return OK; }
377: #
378: # Extract form elements from query string
379: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
380: ['selected_student']);
381: #
382: # We will almost always need this...
383: my $navmap = Apache::lonnavmaps::navmap->new();
384: #
385: &Apache::lonhtmlcommon::clear_breadcrumbs();
386: &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/studentactivity',
387: title=>'Student Activity',
388: text =>'Student Activity',
389: faq=>139,
390: bug=>'instructor interface'});
391: #
392: # Give the LON-CAPA page header
393: $r->print('<html><head>'.&styles.'<title>'.
394: &mt('Student Activity').
395: "</title></head>\n".
396: &Apache::loncommon::bodytag('Student Activity').
397: &Apache::lonhtmlcommon::breadcrumbs(undef,'Student Activity'));
398: $r->rflush();
399: #
400: # Begin form output
401: $r->print('<form name="trackstudent" method="post" action="/adm/trackstudent">');
402: $r->print('<br />');
403: $r->print('<div name="statusline">'.
404: &mt('Status:[_1]',
405: '<input type="text" name="status" size="60" value="" />').
406: '</div>');
407: $r->rflush();
408: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
409: ($r,&mt('Student Activity Retrieval'),
410: &mt('Student Activity Retrieval'),undef,'inline',undef,
411: 'trackstudent','status');
412: &Apache::lonhtmlcommon::Update_PrgWin
413: ($r,\%prog_state,&mt('Contacting course home server'));
414: #
415: my $result = &request_data_update();
416: if (ref($result) eq 'HASH') {
417: $result = join(' ',map { $_.'=>'.$result->{$_}; } keys(%$result));
418: }
419: #
420: if (exists($ENV{'form.selected_student'})) {
421: # For now, just show all the data, in the future allow selection of
422: # a student
423: my ($sname,$sdom) = split(':',$ENV{'form.selected_student'});
424: if ($sname =~ /^\w*$/ && $sdom =~ /^\w*$/) {
425: $r->print('<h2>'.
426: &mt('Recent activity of [_1]@[_2]',$sname,$sdom).
427: '</h2>');
428: &get_data($r,\%prog_state,$navmap,
429: 'student:'.$ENV{'form.selected_student'});
430: } else {
431: $r->print('<h2>'.&mt('Unable to process for [_1]@[_2]',
432: $sname,$sdom).'</h2>');
433: }
434: } else {
435: # For now, just show all the data instead of limiting it to one student
436: &get_data($r,\%prog_state,$navmap,'full_class');
437: }
438: #
439: &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Done'));
440: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
441: #
442: $r->print("</form>\n");
443: $r->print("</body>\n</html>\n");
444: $r->rflush();
445: #
446: return OK;
447: }
448:
449: 1;
450:
451: #######################################################
452: #######################################################
453:
454: =pod
455:
456: =back
457:
458: =cut
459:
460: #######################################################
461: #######################################################
462:
463: __END__
464:
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