File:
[LON-CAPA] /
loncom /
interface /
loncoursedata.pm
Revision
1.13:
download - view:
text,
annotated -
select for diffs
Tue Aug 13 00:37:18 2002 UTC (21 years, 11 months ago) by
stredwic
Branches:
MAIN
CVS tags:
HEAD
First, added unescaping of $key in lond dump command.
Next, I added a new way to download student course data. There are now
two functions for storing data, DownloadStudentCourseData and
DownloadStudentCourseDataSeparate. These two functions base their running
on input parameters. The option parameters are whether or not to check
the date for downloading, whether or not to store all the dumped data or
extract out the data you want, whether or not to display a status window.
The extracting data parameter will be best utilized if someone adds in the
ability to send a list of what parameters are desired and perhaps some simple
commands to affect how that data is processed, like tries, sum would
sum record the sum of all the tries for a student. This is just an idea.
Currently, I have all the statistics modules using the extract ability.
This slightly increases in download time, but drastically reduces cache
size. Possible ideas include pushing the extract to the lond side with a
list of parameter/commands, or even downloading everything to a temp cache,
then extract the necessary data into the cache then removing the temp
cache. There are lots of other possibilities, which can change the download
time, cache size, and other factors. Now, only loncoursedata handles the
downloading of data to a hash.
lonstudentassessment was changed slightly to remove ' ' as a link if the
student actually hadn't attempted the problem.
lonproblemanalysis was updated for the new str2hash type functions. There
are a couple of (cludges/fixes) for it. Depending on whether or not the
str2hash type functions are changed, these may or may not need to be
updated.
lonproblemstatistics was drastically overhauled. Most of the processing
was removed. Now, it just does its few statistics functions and outputs
the table. Currently, I broke the graph, discussion column, and
discriminant factor columns. These will be fixed on the next commit soon.
There is also no caching done. This will also be remedied soon. The
problem that will need attention with caching is to know when to update
the statistics cached data when a student's course data is updated.
Lastly, I plan to add perhaps a toggle legend display button, another graph
button(percentage correct), a button to send the CSV format(not just display),
and add a toggle button for sorting within a sequence and sorting all
the problems.
Also, I changed the look and feel to be the same as the class list page.
Also, the displaying of sequence headers and child sequences are not
working. This will be fixed, but thought will be put into how best to
make it look and have a similiar fill for all the table combinations.
1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
4: # $Id: loncoursedata.pm,v 1.13 2002/08/13 00:37:18 stredwic 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: ###
29:
30: =pod
31:
32: =head1 NAME
33:
34: loncoursedata
35:
36: =head1 SYNOPSIS
37:
38: Set of functions that download and process student information.
39:
40: =head1 PACKAGES USED
41:
42: Apache::Constants qw(:common :http)
43: Apache::lonnet()
44: HTML::TokeParser
45: GDBM_File
46:
47: =cut
48:
49: package Apache::loncoursedata;
50:
51: use strict;
52: use Apache::Constants qw(:common :http);
53: use Apache::lonnet();
54: use Apache::lonhtmlcommon;
55: use HTML::TokeParser;
56: use GDBM_File;
57:
58: =pod
59:
60: =head1 DOWNLOAD INFORMATION
61:
62: This section contains all the files that get data from other servers
63: and/or itself. There is one function that has a call to get remote
64: information but isn't included here which is ProcessTopLevelMap. The
65: usage was small enough to be ignored, but that portion may be moved
66: here in the future.
67:
68: =cut
69:
70: # ----- DOWNLOAD INFORMATION -------------------------------------------
71:
72: =pod
73:
74: =item &DownloadClasslist()
75:
76: Collects lastname, generation, middlename, firstname, PID, and section for each
77: student from their environment database. The list of students is built from
78: collecting a classlist for the course that is to be displayed.
79:
80: =over 4
81:
82: Input: $courseID, $c
83:
84: $courseID: The id of the course
85:
86: $c: The connection class that can determine if the browser has aborted. It
87: is used to short circuit this function so that it doesn't continue to
88: get information when there is no need.
89:
90: Output: \%classlist
91:
92: \%classlist: A pointer to a hash containing the following data:
93:
94: -A list of student name:domain (as keys) (known below as $name)
95:
96: -A hash pointer for each student containing lastname, generation, firstname,
97: middlename, and PID : Key is $name.'studentInformation'
98:
99: -A hash pointer to each students section data : Key is $name.section
100:
101: =back
102:
103: =cut
104:
105: sub DownloadClasslist {
106: my ($courseID, $lastDownloadTime, $c)=@_;
107: my ($courseDomain,$courseNumber)=split(/\_/,$courseID);
108: my %classlist;
109:
110: my $modifiedTime = &GetFileTimestamp($courseDomain, $courseNumber,
111: 'classlist.db',
112: $Apache::lonnet::perlvar{'lonUsersDir'});
113:
114: if($lastDownloadTime ne 'Not downloaded' &&
115: $lastDownloadTime >= $modifiedTime && $modifiedTime >= 0) {
116: $classlist{'lastDownloadTime'}=time;
117: $classlist{'UpToDate'} = 'true';
118: return \%classlist;
119: }
120:
121: %classlist=&Apache::lonnet::dump('classlist',$courseDomain, $courseNumber);
122: my ($checkForError)=keys (%classlist);
123: if($checkForError =~ /^(con_lost|error|no_such_host)/i) {
124: return \%classlist;
125: }
126:
127: foreach my $name (keys(%classlist)) {
128: if($c->aborted()) {
129: $classlist{'error'}='aborted';
130: return \%classlist;
131: }
132:
133: my ($studentName,$studentDomain) = split(/\:/,$name);
134: # Download student environment data, specifically the full name and id.
135: my %studentInformation=&Apache::lonnet::get('environment',
136: ['lastname','generation',
137: 'firstname','middlename',
138: 'id'],
139: $studentDomain,
140: $studentName);
141: $classlist{$name.':studentInformation'}=\%studentInformation;
142:
143: if($c->aborted()) {
144: $classlist{'error'}='aborted';
145: return \%classlist;
146: }
147:
148: #Section
149: my %section=&Apache::lonnet::dump('roles',$studentDomain,$studentName);
150: $classlist{$name.':sections'}=\%section;
151: }
152:
153: $classlist{'UpToDate'} = 'false';
154: $classlist{'lastDownloadTime'}=time;
155:
156: return \%classlist;
157: }
158:
159: =pod
160:
161: =item &DownloadCourseInformation()
162:
163: Dump of all the course information for a single student. There is no
164: pruning of data, it is all stored in a hash and returned. It also
165: checks the timestamp of the students course database file and only downloads
166: if it has been modified since the last download.
167:
168: =over 4
169:
170: Input: $name, $courseID
171:
172: $name: student name:domain
173:
174: $courseID: The id of the course
175:
176: Output: \%courseData
177:
178: \%courseData: A hash pointer to the raw data from the student's course
179: database.
180:
181: =back
182:
183: =cut
184:
185: sub DownloadCourseInformation {
186: my ($namedata,$courseID,$lastDownloadTime,$WhatIWant)=@_;
187: my %courseData;
188: my ($name,$domain) = split(/\:/,$namedata);
189:
190: my $modifiedTime = &GetFileTimestamp($domain, $name,
191: $courseID.'.db',
192: $Apache::lonnet::perlvar{'lonUsersDir'});
193:
194: if($lastDownloadTime >= $modifiedTime && $modifiedTime >= 0) {
195: $courseData{$namedata.':lastDownloadTime'}=time;
196: $courseData{$namedata.':UpToDate'} = 'true';
197: return \%courseData;
198: }
199:
200: # Download course data
201: if(!defined($WhatIWant)) {
202: $WhatIWant = '.';
203: }
204: %courseData=&Apache::lonnet::dump($courseID, $domain, $name, $WhatIWant);
205: $courseData{'UpToDate'} = 'false';
206: $courseData{'lastDownloadTime'}=time;
207:
208: my %newData;
209: foreach (keys(%courseData)) {
210: $newData{$namedata.':'.$_} = $courseData{$_};
211: }
212:
213: return \%newData;
214: }
215:
216: # ----- END DOWNLOAD INFORMATION ---------------------------------------
217:
218: =pod
219:
220: =head1 PROCESSING FUNCTIONS
221:
222: These functions process all the data for all the students. Also, they
223: are the only functions that access the cache database for writing. Thus
224: they are the only functions that cache data. The downloading and caching
225: were separated to reduce problems with stopping downloading then can't
226: tie hash to database later.
227:
228: =cut
229:
230: # ----- PROCESSING FUNCTIONS ---------------------------------------
231:
232: =pod
233:
234: =item &ProcessTopResourceMap()
235:
236: Trace through the "big hash" created in rat/lonuserstate.pm::loadmap.
237: Basically, this function organizes a subset of the data and stores it in
238: cached data. The data stored is the problems, sequences, sequence titles,
239: parts of problems, and their ordering. Column width information is also
240: partially handled here on a per sequence basis.
241:
242: =over 4
243:
244: Input: $cache, $c
245:
246: $cache: A pointer to a hash to store the information
247:
248: $c: The connection class used to determine if an abort has been sent to the
249: browser
250:
251: Output: A string that contains an error message or "OK" if everything went
252: smoothly.
253:
254: =back
255:
256: =cut
257:
258: sub ProcessTopResourceMap {
259: my ($cache,$c)=@_;
260: my %hash;
261: my $fn=$ENV{'request.course.fn'};
262: if(-e "$fn.db") {
263: my $tieTries=0;
264: while($tieTries < 3) {
265: if($c->aborted()) {
266: return;
267: }
268: if(tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER(),0640)) {
269: last;
270: }
271: $tieTries++;
272: sleep 1;
273: }
274: if($tieTries >= 3) {
275: return 'Coursemap undefined.';
276: }
277: } else {
278: return 'Can not open Coursemap.';
279: }
280:
281: # Initialize state machine. Set information pointing to top level map.
282: my (@sequences, @currentResource, @finishResource);
283: my ($currentSequence, $currentResourceID, $lastResourceID);
284:
285: $currentResourceID=$hash{'ids_/res/'.$ENV{'request.course.uri'}};
286: push(@currentResource, $currentResourceID);
287: $lastResourceID=-1;
288: $currentSequence=-1;
289: my $topLevelSequenceNumber = $currentSequence;
290:
291: my %sequenceRecord;
292: while(1) {
293: if($c->aborted()) {
294: last;
295: }
296: # HANDLE NEW SEQUENCE!
297: #if page || sequence
298: if(defined($hash{'map_pc_'.$hash{'src_'.$currentResourceID}}) &&
299: !defined($sequenceRecord{$currentResourceID})) {
300: $sequenceRecord{$currentResourceID}++;
301: push(@sequences, $currentSequence);
302: push(@currentResource, $currentResourceID);
303: push(@finishResource, $lastResourceID);
304:
305: $currentSequence=$hash{'map_pc_'.$hash{'src_'.$currentResourceID}};
306:
307: # Mark sequence as containing problems. If it doesn't, then
308: # it will be removed when processing for this sequence is
309: # complete. This allows the problems in a sequence
310: # to be outputed before problems in the subsequences
311: if(!defined($cache->{'orderedSequences'})) {
312: $cache->{'orderedSequences'}=$currentSequence;
313: } else {
314: $cache->{'orderedSequences'}.=':'.$currentSequence;
315: }
316:
317: $lastResourceID=$hash{'map_finish_'.
318: $hash{'src_'.$currentResourceID}};
319: $currentResourceID=$hash{'map_start_'.
320: $hash{'src_'.$currentResourceID}};
321:
322: if(!($currentResourceID) || !($lastResourceID)) {
323: $currentSequence=pop(@sequences);
324: $currentResourceID=pop(@currentResource);
325: $lastResourceID=pop(@finishResource);
326: if($currentSequence eq $topLevelSequenceNumber) {
327: last;
328: }
329: }
330: next;
331: }
332:
333: # Handle gradable resources: exams, problems, etc
334: $currentResourceID=~/(\d+)\.(\d+)/;
335: my $partA=$1;
336: my $partB=$2;
337: if($hash{'src_'.$currentResourceID}=~
338: /\.(problem|exam|quiz|assess|survey|form)$/ &&
339: $partA eq $currentSequence &&
340: !defined($sequenceRecord{$currentSequence.':'.
341: $currentResourceID})) {
342: $sequenceRecord{$currentSequence.':'.$currentResourceID}++;
343: my $Problem = &Apache::lonnet::symbclean(
344: &Apache::lonnet::declutter($hash{'map_id_'.$partA}).
345: '___'.$partB.'___'.
346: &Apache::lonnet::declutter($hash{'src_'.
347: $currentResourceID}));
348:
349: $cache->{$currentResourceID.':problem'}=$Problem;
350: if(!defined($cache->{$currentSequence.':problems'})) {
351: $cache->{$currentSequence.':problems'}=$currentResourceID;
352: } else {
353: $cache->{$currentSequence.':problems'}.=
354: ':'.$currentResourceID;
355: }
356:
357: my $meta=$hash{'src_'.$currentResourceID};
358: # $cache->{$currentResourceID.':title'}=
359: # &Apache::lonnet::metdata($meta,'title');
360: $cache->{$currentResourceID.':title'}=
361: $hash{'title_'.$currentResourceID};
362: $cache->{$currentResourceID.':source'}=
363: $hash{'src_'.$currentResourceID};
364:
365: # Get Parts for problem
366: my %beenHere;
367: foreach (split(/\,/,&Apache::lonnet::metadata($meta,'packages'))) {
368: if(/^\w+response_\d+.*/) {
369: my (undef, $partId, $responseId) = split(/_/,$_);
370: if($beenHere{'p:'.$partId} == 0) {
371: $beenHere{'p:'.$partId}++;
372: if(!defined($cache->{$currentSequence.':'.
373: $currentResourceID.':parts'})) {
374: $cache->{$currentSequence.':'.$currentResourceID.
375: ':parts'}=$partId;
376: } else {
377: $cache->{$currentSequence.':'.$currentResourceID.
378: ':parts'}.=':'.$partId;
379: }
380: }
381: if($beenHere{'r:'.$partId.':'.$responseId} == 0) {
382: $beenHere{'r:'.$partId.':'.$responseId}++;
383: if(!defined($cache->{$currentSequence.':'.
384: $currentResourceID.':'.$partId.
385: ':responseIDs'})) {
386: $cache->{$currentSequence.':'.$currentResourceID.
387: ':'.$partId.':responseIDs'}=$responseId;
388: } else {
389: $cache->{$currentSequence.':'.$currentResourceID.
390: ':'.$partId.':responseIDs'}.=':'.
391: $responseId;
392: }
393: }
394: if(/^optionresponse/ &&
395: $beenHere{'o:'.$partId.':'.$currentResourceID} == 0) {
396: $beenHere{'o:'.$partId.$currentResourceID}++;
397: if(defined($cache->{'OptionResponses'})) {
398: $cache->{'OptionResponses'}.= ':::'.
399: $currentResourceID.':'.
400: $partId.':'.$responseId;
401: } else {
402: $cache->{'OptionResponses'}= $currentResourceID.
403: ':'.$partId.':'.$responseId;
404: }
405: }
406: }
407: }
408: }
409:
410: # if resource == finish resource, then it is the end of a sequence/page
411: if($currentResourceID eq $lastResourceID) {
412: # pop off last resource of sequence
413: $currentResourceID=pop(@currentResource);
414: $lastResourceID=pop(@finishResource);
415:
416: if(defined($cache->{$currentSequence.':problems'})) {
417: # Capture sequence information here
418: $cache->{$currentSequence.':title'}=
419: $hash{'title_'.$currentResourceID};
420: $cache->{$currentSequence.':source'}=
421: $hash{'src_'.$currentResourceID};
422:
423: my $totalProblems=0;
424: foreach my $currentProblem (split(/\:/,
425: $cache->{$currentSequence.
426: ':problems'})) {
427: foreach (split(/\:/,$cache->{$currentSequence.':'.
428: $currentProblem.
429: ':parts'})) {
430: $totalProblems++;
431: }
432: }
433: my @titleLength=split(//,$cache->{$currentSequence.
434: ':title'});
435: # $extra is 3 for problems correct and 3 for space
436: # between problems correct and problem output
437: my $extra = 6;
438: if(($totalProblems + $extra) > (scalar @titleLength)) {
439: $cache->{$currentSequence.':columnWidth'}=
440: $totalProblems + $extra;
441: } else {
442: $cache->{$currentSequence.':columnWidth'}=
443: (scalar @titleLength);
444: }
445: } else {
446: # Remove sequence from list, if it contains no problems to
447: # display.
448: $cache->{'orderedSequences'}=~s/$currentSequence//;
449: $cache->{'orderedSequences'}=~s/::/:/g;
450: $cache->{'orderedSequences'}=~s/^:|:$//g;
451: }
452:
453: $currentSequence=pop(@sequences);
454: if($currentSequence eq $topLevelSequenceNumber) {
455: last;
456: }
457: }
458:
459: # MOVE!!!
460: # move to next resource
461: unless(defined($hash{'to_'.$currentResourceID})) {
462: # big problem, need to handle. Next is probably wrong
463: my $errorMessage = 'Big problem in ';
464: $errorMessage .= 'loncoursedata::ProcessTopLevelMap.';
465: $errorMessage .= ' bighash to_$currentResourceID not defined!';
466: &Apache::lonnet::logthis($errorMessage);
467: last;
468: }
469: my @nextResources=();
470: foreach (split(/\,/,$hash{'to_'.$currentResourceID})) {
471: if(!defined($sequenceRecord{$currentSequence.':'.
472: $hash{'goesto_'.$_}})) {
473: push(@nextResources, $hash{'goesto_'.$_});
474: }
475: }
476: push(@currentResource, @nextResources);
477: # Set the next resource to be processed
478: $currentResourceID=pop(@currentResource);
479: }
480:
481: unless (untie(%hash)) {
482: &Apache::lonnet::logthis("<font color=blue>WARNING: ".
483: "Could not untie coursemap $fn (browse)".
484: ".</font>");
485: }
486:
487: return 'OK';
488: }
489:
490: =pod
491:
492: =item &ProcessClasslist()
493:
494: Taking the class list dumped from &DownloadClasslist(), all the
495: students and their non-class information is processed using the
496: &ProcessStudentInformation() function. A date stamp is also recorded for
497: when the data was processed.
498:
499: Takes data downloaded for a student and breaks it up into managable pieces and
500: stored in cache data. The username, domain, class related date, PID,
501: full name, and section are all processed here.
502:
503:
504: =over 4
505:
506: Input: $cache, $classlist, $courseID, $ChartDB, $c
507:
508: $cache: A hash pointer to store the data
509:
510: $classlist: The hash of data collected about a student from
511: &DownloadClasslist(). The hash contains a list of students, a pointer
512: to a hash of student information for each student, and each student's section
513: number.
514:
515: $courseID: The course ID
516:
517: $ChartDB: The name of the cache database file.
518:
519: $c: The connection class used to determine if an abort has been sent to the
520: browser
521:
522: Output: @names
523:
524: @names: An array of students whose information has been processed, and are to
525: be considered in an arbitrary order.
526:
527: =back
528:
529: =cut
530:
531: sub ProcessClasslist {
532: my ($cache,$classlist,$courseID,$c)=@_;
533: my @names=();
534:
535: $cache->{'ClasslistTimeStamp'}=$classlist->{'lastDownloadTime'};
536: if($classlist->{'UpToDate'} eq 'true') {
537: return split(/:::/,$cache->{'NamesOfStudents'});;
538: }
539:
540: foreach my $name (keys(%$classlist)) {
541: if($name =~ /\:section/ || $name =~ /\:studentInformation/ ||
542: $name eq '' || $name eq 'UpToDate' || $name eq 'lastDownloadTime') {
543: next;
544: }
545: if($c->aborted()) {
546: return ();
547: }
548: push(@names,$name);
549: my $studentInformation = $classlist->{$name.':studentInformation'},
550: my $sectionData = $classlist->{$name.':sections'},
551: my $date = $classlist->{$name},
552: my ($studentName,$studentDomain) = split(/\:/,$name);
553:
554: $cache->{$name.':username'}=$studentName;
555: $cache->{$name.':domain'}=$studentDomain;
556: # Initialize timestamp for student
557: if(!defined($cache->{$name.':lastDownloadTime'})) {
558: $cache->{$name.':lastDownloadTime'}='Not downloaded';
559: $cache->{$name.':updateTime'}=' Not updated';
560: }
561:
562: my ($checkForError)=keys(%$studentInformation);
563: if($checkForError =~ /^(con_lost|error|no_such_host)/i) {
564: $cache->{$name.':error'}=
565: 'Could not download student environment data.';
566: $cache->{$name.':fullname'}='';
567: $cache->{$name.':id'}='';
568: } else {
569: $cache->{$name.':fullname'}=&ProcessFullName(
570: $studentInformation->{'lastname'},
571: $studentInformation->{'generation'},
572: $studentInformation->{'firstname'},
573: $studentInformation->{'middlename'});
574: $cache->{$name.':id'}=$studentInformation->{'id'};
575: }
576:
577: my ($end, $start)=split(':',$date);
578: $courseID=~s/\_/\//g;
579: $courseID=~s/^(\w)/\/$1/;
580:
581: my $sec='';
582: foreach my $key (keys (%$sectionData)) {
583: my $value = $sectionData->{$key};
584: if ($key=~/^$courseID(?:\/)*(\w+)*\_st$/) {
585: my $tempsection=$1;
586: if($key eq $courseID.'_st') {
587: $tempsection='';
588: }
589: my ($dummy,$roleend,$rolestart)=split(/\_/,$value);
590: if($roleend eq $end && $rolestart eq $start) {
591: $sec = $tempsection;
592: last;
593: }
594: }
595: }
596:
597: my $status='Expired';
598: if(((!$end) || time < $end) && ((!$start) || (time > $start))) {
599: $status='Active';
600: }
601: $cache->{$name.':Status'}=$status;
602: $cache->{$name.':section'}=$sec;
603:
604: if($sec eq '' || !defined($sec) || $sec eq ' ') {
605: $sec = 'none';
606: }
607: if(defined($cache->{'sectionList'})) {
608: if($cache->{'sectionList'} !~ /(^$sec:|^$sec$|:$sec$|:$sec:)/) {
609: $cache->{'sectionList'} .= ':'.$sec;
610: }
611: } else {
612: $cache->{'sectionList'} = $sec;
613: }
614: }
615:
616: $cache->{'ClasslistTimestamp'}=time;
617: $cache->{'NamesOfStudents'}=join(':::',@names);
618:
619: return @names;
620: }
621:
622: =pod
623:
624: =item &ProcessStudentData()
625:
626: Takes the course data downloaded for a student in
627: &DownloadCourseInformation() and breaks it up into key value pairs
628: to be stored in the cached data. The keys are comprised of the
629: $username:$domain:$keyFromCourseDatabase. The student username:domain is
630: stored away signifying that the student's information has been downloaded and
631: can be reused from cached data.
632:
633: =over 4
634:
635: Input: $cache, $courseData, $name
636:
637: $cache: A hash pointer to store data
638:
639: $courseData: A hash pointer that points to the course data downloaded for a
640: student.
641:
642: $name: username:domain
643:
644: Output: None
645:
646: *NOTE: There is no output, but an error message is stored away in the cache
647: data. This is checked in &FormatStudentData(). The key username:domain:error
648: will only exist if an error occured. The error is an error from
649: &DownloadCourseInformation().
650:
651: =back
652:
653: =cut
654:
655: sub ProcessStudentData {
656: my ($cache,$courseData,$name)=@_;
657:
658: if(!&CheckDateStampError($courseData, $cache, $name)) {
659: return;
660: }
661:
662: foreach (keys %$courseData) {
663: $cache->{$_}=$courseData->{$_};
664: }
665:
666: return;
667: }
668:
669: sub ExtractStudentData {
670: my ($input, $output, $data, $name)=@_;
671:
672: if(!&CheckDateStampError($input, $data, $name)) {
673: return;
674: }
675:
676: my ($username,$domain)=split(':',$name);
677:
678: my $Version;
679: my $problemsCorrect = 0;
680: my $totalProblems = 0;
681: my $problemsSolved = 0;
682: my $numberOfParts = 0;
683: foreach my $sequence (split(':', $data->{'orderedSequences'})) {
684: foreach my $problemID (split(':', $data->{$sequence.':problems'})) {
685: my $problem = $data->{$problemID.':problem'};
686: my $LatestVersion = $input->{$name.':version:'.$problem};
687:
688: # Output dashes for all the parts of this problem if there
689: # is no version information about the current problem.
690: if(!$LatestVersion) {
691: foreach my $part (split(/\:/,$data->{$sequence.':'.
692: $problemID.
693: ':parts'})) {
694: $totalProblems++;
695: }
696: $output->{$name.':'.$problemID.':NoVersion'} = 'true';
697: next;
698: }
699:
700: my %partData=undef;
701: # Initialize part data, display skips correctly
702: # Skip refers to when a student made no submissions on that
703: # part/problem.
704: foreach my $part (split(/\:/,$data->{$sequence.':'.
705: $problemID.
706: ':parts'})) {
707: $partData{$part.':tries'}=0;
708: $partData{$part.':code'}=' ';
709: $partData{$part.':awarded'}=0;
710: $partData{$part.':timestamp'}=0;
711: foreach my $response (split(':', $data->{$sequence.':'.
712: $problemID.':'.
713: $part.':responseIDs'})) {
714: $partData{$part.':'.$response.':submission'}='';
715: }
716: }
717:
718: # Looping through all the versions of each part, starting with the
719: # oldest version. Basically, it gets the most recent
720: # set of grade data for each part.
721: my @submissions = ();
722: for(my $Version=1; $Version<=$LatestVersion; $Version++) {
723: foreach my $part (split(/\:/,$data->{$sequence.':'.
724: $problemID.
725: ':parts'})) {
726:
727: if(!defined($input->{"$name:$Version:$problem".
728: ":resource.$part.solved"})) {
729: # No grade for this submission, so skip
730: next;
731: }
732:
733: my $tries=0;
734: my $code=' ';
735: my $awarded=0;
736:
737: $tries = $input->{$name.':'.$Version.':'.$problem.
738: ':resource.'.$part.'.tries'};
739: $awarded = $input->{$name.':'.$Version.':'.$problem.
740: ':resource.'.$part.'.awarded'};
741:
742: $partData{$part.':awarded'}=($awarded) ? $awarded : 0;
743: $partData{$part.':tries'}=($tries) ? $tries : 0;
744:
745: $partData{$part.':timestamp'}=$input->{$name.':'.$Version.':'.
746: $problem.
747: ':timestamp'};
748: if(!$input->{$name.':'.$Version.':'.$problem.':resource.'.$part.
749: '.previous'}) {
750: foreach my $response (split(':',
751: $data->{$sequence.':'.
752: $problemID.':'.
753: $part.':responseIDs'})) {
754: @submissions=($input->{$name.':'.$Version.':'.
755: $problem.
756: ':resource.'.$part.'.'.
757: $response.'.submission'},
758: @submissions);
759: }
760: }
761:
762: my $val = $input->{$name.':'.$Version.':'.$problem.
763: ':resource.'.$part.'.solved'};
764: if ($val eq 'correct_by_student') {$code = '*';}
765: elsif ($val eq 'correct_by_override') {$code = '+';}
766: elsif ($val eq 'incorrect_attempted') {$code = '.';}
767: elsif ($val eq 'incorrect_by_override'){$code = '-';}
768: elsif ($val eq 'excused') {$code = 'x';}
769: elsif ($val eq 'ungraded_attempted') {$code = '#';}
770: else {$code = ' ';}
771: $partData{$part.':code'}=$code;
772: }
773: }
774:
775: foreach my $part (split(/\:/,$data->{$sequence.':'.$problemID.
776: ':parts'})) {
777: $output->{$name.':'.$problemID.':'.$part.':wrong'} =
778: $partData{$part.':tries'};
779:
780: if($partData{$part.':code'} eq '*') {
781: $output->{$name.':'.$problemID.':'.$part.':wrong'}--;
782: $problemsCorrect++;
783: } elsif($partData{$part.':code'} eq '+') {
784: $output->{$name.':'.$problemID.':'.$part.':wrong'}--;
785: $problemsCorrect++;
786: }
787:
788: $output->{$name.':'.$problemID.':'.$part.':tries'} =
789: $partData{$part.':tries'};
790: $output->{$name.':'.$problemID.':'.$part.':code'} =
791: $partData{$part.':code'};
792: $output->{$name.':'.$problemID.':'.$part.':awarded'} =
793: $partData{$part.':awarded'};
794: $output->{$name.':'.$problemID.':'.$part.':timestamp'} =
795: $partData{$part.':timestamp'};
796: foreach my $response (split(':', $data->{$sequence.':'.
797: $problemID.':'.
798: $part.':responseIDs'})) {
799: $output->{$name.':'.$problemID.':'.$part.':'.$response.
800: ':submission'}=join(':::',@submissions);
801: }
802:
803: if($partData{$part.':code'} ne 'x') {
804: $totalProblems++;
805: }
806: }
807: }
808:
809: $output->{$name.':'.$sequence.':problemsCorrect'} = $problemsCorrect;
810: $problemsSolved += $problemsCorrect;
811: $problemsCorrect=0;
812: }
813:
814: $output->{$name.':problemsSolved'} = $problemsSolved;
815: $output->{$name.':totalProblems'} = $totalProblems;
816:
817: return;
818: }
819:
820: sub LoadDiscussion {
821: my ($courseID)=@_;
822: my %Discuss=();
823: my %contrib=&Apache::lonnet::dump(
824: $courseID,
825: $ENV{'course.'.$courseID.'.domain'},
826: $ENV{'course.'.$courseID.'.num'});
827:
828: #my %contrib=&DownloadCourseInformation($name, $courseID, 0);
829:
830: foreach my $temp(keys %contrib) {
831: if ($temp=~/^version/) {
832: my $ver=$contrib{$temp};
833: my ($dummy,$prb)=split(':',$temp);
834: for (my $idx=1; $idx<=$ver; $idx++ ) {
835: my $name=$contrib{"$idx:$prb:sendername"};
836: $Discuss{"$name:$prb"}=$idx;
837: }
838: }
839: }
840:
841: return \%Discuss;
842: }
843:
844: # ----- END PROCESSING FUNCTIONS ---------------------------------------
845:
846: =pod
847:
848: =head1 HELPER FUNCTIONS
849:
850: These are just a couple of functions do various odd and end
851: jobs.
852:
853: =cut
854:
855: # ----- HELPER FUNCTIONS -----------------------------------------------
856:
857: sub CheckDateStampError {
858: my ($courseData, $cache, $name)=@_;
859: if($courseData->{$name.':UpToDate'} eq 'true') {
860: $cache->{$name.':lastDownloadTime'} =
861: $courseData->{$name.':lastDownloadTime'};
862: if($courseData->{$name.':lastDownloadTime'} eq 'Not downloaded') {
863: $cache->{$name.':updateTime'} = ' Not updated';
864: } else {
865: $cache->{$name.':updateTime'}=
866: localtime($courseData->{$name.':lastDownloadTime'});
867: }
868: return 0;
869: }
870:
871: $cache->{$name.':lastDownloadTime'}=$courseData->{$name.':lastDownloadTime'};
872: if($courseData->{$name.':lastDownloadTime'} eq 'Not downloaded') {
873: $cache->{$name.':updateTime'} = ' Not updated';
874: } else {
875: $cache->{$name.':updateTime'}=
876: localtime($courseData->{$name.':lastDownloadTime'});
877: }
878:
879: if(defined($courseData->{$name.':error'})) {
880: $cache->{$name.':error'}=$courseData->{$name.':error'};
881: return 0;
882: }
883:
884: return 1;
885: }
886:
887: =pod
888:
889: =item &ProcessFullName()
890:
891: Takes lastname, generation, firstname, and middlename (or some partial
892: set of this data) and returns the full name version as a string. Format
893: is Lastname generation, firstname middlename or a subset of this.
894:
895: =cut
896:
897: sub ProcessFullName {
898: my ($lastname, $generation, $firstname, $middlename)=@_;
899: my $Str = '';
900:
901: if($lastname ne '') {
902: $Str .= $lastname.' ';
903: if($generation ne '') {
904: $Str .= $generation;
905: } else {
906: chop($Str);
907: }
908: $Str .= ', ';
909: if($firstname ne '') {
910: $Str .= $firstname.' ';
911: }
912: if($middlename ne '') {
913: $Str .= $middlename;
914: } else {
915: chop($Str);
916: if($firstname eq '') {
917: chop($Str);
918: }
919: }
920: } else {
921: if($firstname ne '') {
922: $Str .= $firstname.' ';
923: }
924: if($middlename ne '') {
925: $Str .= $middlename.' ';
926: }
927: if($generation ne '') {
928: $Str .= $generation;
929: } else {
930: chop($Str);
931: }
932: }
933:
934: return $Str;
935: }
936:
937: =pod
938:
939: =item &TestCacheData()
940:
941: Determine if the cache database can be accessed with a tie. It waits up to
942: ten seconds before returning failure. This function exists to help with
943: the problems with stopping the data download. When an abort occurs and the
944: user quickly presses a form button and httpd child is created. This
945: child needs to wait for the other to finish (hopefully within ten seconds).
946:
947: =over 4
948:
949: Input: $ChartDB
950:
951: $ChartDB: The name of the cache database to be opened
952:
953: Output: -1, 0, 1
954:
955: -1: Couldn't tie database
956: 0: Use cached data
957: 1: New cache database created, use that.
958:
959: =back
960:
961: =cut
962:
963: sub TestCacheData {
964: my ($ChartDB,$isRecalculate,$totalDelay)=@_;
965: my $isCached=-1;
966: my %testData;
967: my $tieTries=0;
968:
969: if(!defined($totalDelay)) {
970: $totalDelay = 10;
971: }
972:
973: if ((-e "$ChartDB") && (!$isRecalculate)) {
974: $isCached = 1;
975: } else {
976: $isCached = 0;
977: }
978:
979: while($tieTries < $totalDelay) {
980: my $result=0;
981: if($isCached) {
982: $result=tie(%testData,'GDBM_File',$ChartDB,&GDBM_READER(),0640);
983: } else {
984: $result=tie(%testData,'GDBM_File',$ChartDB,&GDBM_NEWDB(),0640);
985: }
986: if($result) {
987: last;
988: }
989: $tieTries++;
990: sleep 1;
991: }
992: if($tieTries >= $totalDelay) {
993: return -1;
994: }
995:
996: untie(%testData);
997:
998: return $isCached;
999: }
1000:
1001: sub DownloadStudentCourseData {
1002: my ($students,$checkDate,$cacheDB,$extract,$status,$courseID,$r,$c)=@_;
1003:
1004: my $title = 'LON-CAPA Statistics';
1005: my $heading = 'Download and Process Course Data';
1006: my $studentCount = scalar(@$students);
1007: my %cache;
1008:
1009: my $WhatIWant;
1010: $WhatIWant = '(^version:(\w|\/|\.|-)+?$|';
1011: $WhatIWant .= '^\d+:(\w|\/|\.|-)+?:(resource\.\d+\.';
1012: $WhatIWant .= '(solved|tries|previous|awarded|(\d+\.submission))\s*$';
1013: $WhatIWant .= '|timestamp)';
1014: $WhatIWant .= ')';
1015:
1016: if($status eq 'true') {
1017: &Apache::lonhtmlcommon::Create_PrgWin($r, $title, $heading);
1018: }
1019: my $count=1;
1020: foreach (@$students) {
1021: if($c->aborted()) { return 'Aborted'; }
1022:
1023: if($status eq 'true') {
1024: my $displayString = $count.'/'.$studentCount.': '.$_;
1025: &Apache::lonhtmlcommon::Update_PrgWin($displayString, $r);
1026: }
1027:
1028: my $downloadTime='Not downloaded';
1029: if($checkDate eq 'true' &&
1030: tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
1031: $downloadTime = $cache{$_.':lastDownloadTime'};
1032: untie(%cache);
1033: }
1034:
1035: if($c->aborted()) { return 'Aborted'; }
1036:
1037: if($downloadTime eq 'Not downloaded') {
1038: my $courseData =
1039: &DownloadCourseInformation($_, $courseID, $downloadTime,
1040: $WhatIWant);
1041: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) {
1042: foreach my $key (keys(%$courseData)) {
1043: if($key =~ /^(con_lost|error|no_such_host)/i) {
1044: $courseData->{$_.':error'} = 'No course data for '.$_;
1045: last;
1046: }
1047: }
1048: if($extract eq 'true') {
1049: &ExtractStudentData($courseData, \%cache, \%cache, $_);
1050: } else {
1051: &ProcessStudentData(\%cache, $courseData, $_);
1052: }
1053: untie(%cache);
1054: } else {
1055: next;
1056: }
1057: }
1058: $count++;
1059: }
1060: if($status eq 'true') { &Apache::lonhtmlcommon::Close_PrgWin($r); }
1061:
1062: return 'OK';
1063: }
1064:
1065: sub DownloadStudentCourseDataSeparate {
1066: my ($students,$checkDate,$cacheDB,$extract,$status,$courseID,$r,$c)=@_;
1067: my $residualFile = '/home/httpd/perl/tmp/'.$courseID.'DownloadFile.db';
1068: my $title = 'LON-CAPA Statistics';
1069: my $heading = 'Download Course Data';
1070:
1071: my $WhatIWant;
1072: $WhatIWant = '(^version:(\w|\/|\.|-)+?$|';
1073: $WhatIWant .= '^\d+:(\w|\/|\.|-)+?:(resource\.\d+\.';
1074: $WhatIWant .= '(solved|tries|previous|awarded|(\d+\.submission))\s*$';
1075: $WhatIWant .= '|timestamp)';
1076: $WhatIWant .= ')';
1077:
1078: &CheckForResidualDownload($courseID, $cacheDB, $students, $c);
1079:
1080: my %cache;
1081: my %downloadData;
1082: unless(tie(%downloadData,'GDBM_File',$residualFile,&GDBM_NEWDB(),0640)) {
1083: return 'Failed to tie temporary download hash.';
1084: }
1085:
1086: my $studentCount = scalar(@$students);
1087: if($status eq 'true') {
1088: &Apache::lonhtmlcommon::Create_PrgWin($r, $title, $heading);
1089: }
1090: my $count=1;
1091: foreach (@$students) {
1092: if($c->aborted()) {
1093: untie(%downloadData);
1094: return 'Aborted';
1095: }
1096:
1097: if($status eq 'true') {
1098: my $displayString = $count.'/'.$studentCount.': '.$_;
1099: &Apache::lonhtmlcommon::Update_PrgWin($displayString, $r);
1100: }
1101:
1102: my $downloadTime='Not downloaded';
1103: if($checkDate eq 'true' &&
1104: tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
1105: $downloadTime = $cache{$_.':lastDownloadTime'};
1106: untie(%cache);
1107: }
1108:
1109: if($c->aborted()) {
1110: untie(%downloadData);
1111: return 'Aborted';
1112: }
1113:
1114: if($downloadTime eq 'Not downloaded') {
1115: my $error = 0;
1116: my $courseData =
1117: &DownloadCourseInformation($_, $courseID, $downloadTime,
1118: $WhatIWant);
1119: foreach my $key (keys(%$courseData)) {
1120: $downloadData{$key} = $courseData->{$key};
1121: if($key =~ /^(con_lost|error|no_such_host)/i) {
1122: $error = 1;
1123: last;
1124: }
1125: }
1126: if($error) {
1127: foreach my $deleteKey (keys(%$courseData)) {
1128: delete $downloadData{$deleteKey};
1129: }
1130: $downloadData{$_.':error'} = 'No course data for '.$_;
1131: }
1132: }
1133: $count++;
1134: }
1135: if($status eq 'true') { &Apache::lonhtmlcommon::Close_PrgWin($r); }
1136:
1137: return &CheckForResidualDownload($cacheDB, 'true', 'true',
1138: $courseID, $r, $c);
1139: }
1140:
1141: sub CheckForResidualDownload {
1142: my ($cacheDB,$extract,$status,$courseID,$r,$c)=@_;
1143:
1144: my $residualFile = '/home/httpd/perl/tmp/'.$courseID.'DownloadFile.db';
1145: if(!-e $residualFile) {
1146: return;
1147: }
1148:
1149: my %downloadData;
1150: my %cache;
1151: unless(tie(%downloadData,'GDBM_File',$residualFile,&GDBM_READER(),0640) &&
1152: tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) {
1153: return;
1154: }
1155:
1156: my @dataKeys=keys(%downloadData);
1157: my @students=();
1158: my %checkStudent;
1159: foreach(@dataKeys) {
1160: my @temp = split(':', $_);
1161: my $student = $temp[0].':'.$temp[1];
1162: if(!defined($checkStudent{$student})) {
1163: $checkStudent{$student}++;
1164: push(@students, $student);
1165: }
1166: }
1167:
1168: my $heading = 'Process Course Data';
1169: my $title = 'LON-CAPA Statistics';
1170: my $studentCount = scalar(@students);
1171: if($status eq 'true') {
1172: &Apache::lonhtmlcommon::Create_PrgWin($r, $title, $heading);
1173: }
1174:
1175: my $count=1;
1176: foreach my $name (@students) {
1177: last if($c->aborted());
1178:
1179: if($status eq 'true') {
1180: my $displayString = $count.'/'.$studentCount.': '.$_;
1181: &Apache::lonhtmlcommon::Update_PrgWin($displayString, $r);
1182: }
1183:
1184: if($extract eq 'true') {
1185: &ExtractStudentData(\%downloadData, \%cache, \%cache, $name);
1186: } else {
1187: &ProcessStudentData(\%cache, \%downloadData, $name);
1188: }
1189: foreach (@dataKeys) {
1190: if(/^$name/) {
1191: delete $downloadData{$_};
1192: }
1193: }
1194: $count++;
1195: }
1196:
1197: if($status eq 'true') { &Apache::lonhtmlcommon::Close_PrgWin($r); }
1198:
1199: untie(%cache);
1200: untie(%downloadData);
1201:
1202: if(!$c->aborted()) {
1203: my @files = ($residualFile);
1204: unlink(@files);
1205: }
1206:
1207: return 'OK';
1208: }
1209:
1210: sub GetFileTimestamp {
1211: my ($studentDomain,$studentName,$filename,$root)=@_;
1212: $studentDomain=~s/\W//g;
1213: $studentName=~s/\W//g;
1214: my $subdir=$studentName.'__';
1215: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
1216: my $proname="$studentDomain/$subdir/$studentName";
1217: $proname .= '/'.$filename;
1218: my @dir = &Apache::lonnet::dirlist($proname, $studentDomain, $studentName,
1219: $root);
1220: my $fileStat = $dir[0];
1221: my @stats = split('&', $fileStat);
1222: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1223: return $stats[9];
1224: } else {
1225: return -1;
1226: }
1227: }
1228:
1229: # ----- END HELPER FUNCTIONS --------------------------------------------
1230:
1231: 1;
1232: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to loncoursedata.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface