1: # The LON-CAPA Grading handler
2: # 2/9,2/13 Guy Albertelli
3: # 6/8 Gerd Kortemeyer
4: # 7/26 H.K. Ng
5: # 8/20 Gerd Kortemeyer
6:
7: package Apache::grades;
8: use strict;
9: use Apache::style;
10: use Apache::lonxml;
11: use Apache::lonnet;
12: use Apache::loncommon;
13: use Apache::lonhomework;
14: use Apache::Constants qw(:common);
15:
16: sub moreinfo {
17: my ($request,$reason) = @_;
18: $request->print("Unable to process request: $reason");
19: if ( $Apache::grades::viewgrades eq 'F' ) {
20: $request->print('<form action="/adm/grades" method="post">'."\n");
21: if ($ENV{'form.url'}) {
22: $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");
23: }
24: if ($ENV{'form.symb'}) {
25: $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");
26: }
27: $request->print('<input type="hidden" name="command" value="'.$ENV{'form.command'}.'" />'."\n");
28: $request->print("Student:".'<input type="text" name="student" value="'.$ENV{'form.student'}.'" />'."<br />\n");
29: $request->print("Domain:".'<input type="text" name="domain" value="'.$ENV{'user.domain'}.'" />'."<br />\n");
30: $request->print('<input type="submit" name="submit" value="ReSubmit" />'."<br />\n");
31: $request->print('</form>');
32: }
33: return '';
34: }
35:
36:
37: sub listStudents {
38: my ($request) = shift;
39: my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
40: my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
41: $request->print ("Found $cdom:$cnum:$chome<br />");
42: my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
43: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
44: my ($sname,$sdom) = split(/:/,$student);
45:
46: my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.
47: ':environment:lastname&generation&firstname&middlename',
48: &Apache::lonnet::homeserver($sname,$sdom));
49: #print "reply=$reply<br>";
50: my (@nameparts) = split /&/,$reply;
51: # my $sfullname = $Apache::lonnet::unescape($nameparts[0]);
52:
53: if ( $Apache::grades::viewgrades eq 'F' ) {
54: $request->print('<form action="/adm/grades" method="post">'."\n");
55: $request->print("$sname @nameparts\n");
56: if ($ENV{'form.url'}) {
57: $request->print('<input type="hidden" name="url" value="'.$ENV{'form.url'}.'" />'."\n");
58: }
59: if ($ENV{'form.symb'}) {
60: $request->print('<input type="hidden" name="symb" value="'.$ENV{'form.symb'}.'" />'."\n");
61: }
62: $request->print('<input type="hidden" name="command" value="'.$ENV{'form.command'}.'" />'."\n");
63: $request->print('<input type="hidden" name="student" value="'.$sname.'" />'."\n");
64: $request->print('<input type="hidden" name="domain" value="'.$sdom.'" />'."\n");
65: $request->print('<input type="submit" name="submit" value="View" />'."<br />\n");
66: $request->print('</form>');
67: }
68: }
69:
70: }
71:
72:
73: #FIXME - needs to handle multiple matches
74: sub finduser {
75: my ($name) = @_;
76: my $domain = '';
77:
78: if ( $Apache::grades::viewgrades eq 'F' ) {
79: #get classlist
80: my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
81: my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
82: #print "Found $cdom:$cnum:$chome<br />";
83: my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
84: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
85: my ($posname,$posdomain) = split(/:/,$student);
86: if ($posname =~ $name) { $name=$posname; $domain=$posdomain; last; }
87: }
88: return ($name,$domain);
89: } else {
90: return ($ENV{'user.name'},$ENV{'user.domain'});
91: }
92: }
93:
94: sub getclasslist {
95: my ($coursedomain,$coursenum,$coursehome,$hideexpired) = @_;
96: my $classlist=&Apache::lonnet::reply("dump:$coursedomain:$coursenum:classlist",$coursehome);
97: my %classlist=();
98: my $now = time;
99: foreach my $record (split /&/, $classlist) {
100: my ($name,$value)=split(/=/,&Apache::lonnet::unescape($record));
101: my ($end,$start)=split(/:/,$value);
102: # still a student?
103: if (($hideexpired) && ($end) && ($end < $now)) {
104: #print "Skipping:$name:$end:$now<br />\n";
105: next;
106: }
107: #print "record=$record<br>";
108: push( @{ $classlist{'allids'} }, $name);
109: }
110: return (%classlist);
111: }
112:
113: sub getpartlist {
114: my ($url) = @_;
115: my @parts =();
116: my (@metakeys) = split(/,/,&Apache::lonnet::metadata($url,'keys'));
117: foreach my $key (@metakeys) {
118: if ( $key =~ m/stores_([0-9]+)_.*/ ) {
119: push(@parts,$key);
120: }
121: }
122: return @parts;
123: }
124:
125: sub viewstudentgrade {
126: my ($url,$symb,$courseid,$student,@parts) = @_;
127: my $result ='';
128: my $cellclr = '"#ffffdd"';
129: my ($stuname,$domain) = split(/:/,$student);
130:
131: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
132:
133: $result.="<tr><td bgcolor=$cellclr>$stuname</td><td bgcolor=$cellclr align=\"middle\">$domain</td>\n";
134: foreach my $part (@parts) {
135: my ($temp,$part,$type)=split(/_/,$part);
136: #print "resource.$part.$type = ".$record{"resource.$part.$type"}." <br />\n";
137: if ($type eq 'awarded') {
138: my $score=$record{"resource.$part.$type"};
139: $result.="<td bgcolor=$cellclr align=\"middle\"><input type=\"text\" name=\"GRADE.$student.$part.$type\" value=\"$score\" size=\"4\" /></td>\n";
140: } elsif ($type eq 'tries') {
141: my $score=$record{"resource.$part.$type"};
142: $result.="<td bgcolor=$cellclr align=\"middle\"><input type=\"text\" name=\"GRADE.$student.$part.$type\" value=\"$score\" size=\"4\" /></td>\n"
143: } elsif ($type eq 'solved') {
144: my $score=$record{"resource.$part.$type"};
145: $result.="<td bgcolor=$cellclr align=\"middle\"><select name=\"GRADE.$student.$part.$type\">\n";
146: if ($score =~ /^correct/) {
147: $result.="<option selected=\"on\">correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
148: } elsif ($score =~ /^incorrect/) {
149: $result.="<option>correct</option>\n<option selected=\"on\">incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
150: } elsif ($score eq '') {
151: $result.="<option>correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option>ungraded</option>\n<option selected=\"on\">nothing</option>\n";
152: } elsif ($score =~ /^excused/) {
153: $result.="<option>correct</option>\n<option>incorrect</option>\n<option selected=\"on\">excused</option>\n<option>ungraded</option>\n<option>nothing</option>\n";
154: } elsif ($score =~ /^ungraded/) {
155: $result.="<option>correct</option>\n<option>incorrect</option>\n<option>excused</option>\n<option selected=\"on\">ungraded</option>\n<option>nothing</option>\n";
156: }
157: $result.="</select></td>\n";
158: }
159: }
160: $result.='</tr>';
161: return $result;
162: }
163: #FIXME need to look at the meatdata <stores> spec on what type of data to accept and provide an
164: #interface based on that, also do that to above function.
165: sub setstudentgrade {
166: my ($url,$symb,$courseid,$student,@parts) = @_;
167:
168: my $result ='';
169:
170: my ($stuname,$domain) = split(/:/,$student);
171:
172: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$stuname);
173:
174: my %newrecord;
175:
176: foreach my $part (@parts) {
177: my ($temp,$part,$type)=split(/_/,$part);
178: my $oldscore=$record{"resource.$part.$type"};
179: my $newscore=$ENV{"form.GRADE.$student.$part.$type"};
180: if ($type eq 'solved') {
181: my $update=0;
182: if ($newscore eq 'nothing' ) {
183: if ($oldscore ne '') {
184: $update=1;
185: $newscore = '';
186: }
187: } elsif ($oldscore !~ m/^$newscore/) {
188: $update=1;
189: $result.="Updating $stuname to $newscore<br />\n";
190: if ($newscore eq 'correct') { $newscore = 'correct_by_override'; }
191: if ($newscore eq 'incorrect') { $newscore = 'incorrect_by_override'; }
192: if ($newscore eq 'excused') { $newscore = 'excused'; }
193: if ($newscore eq 'ungraded') { $newscore = 'ungraded_attempted'; }
194: } else {
195: #$result.="$stuname:$part:$type:unchanged $oldscore to $newscore:<br />\n";
196: }
197: if ($update) { $newrecord{"resource.$part.$type"}=$newscore; }
198: } else {
199: if ($oldscore ne $newscore) {
200: $newrecord{"resource.$part.$type"}=$newscore;
201: $result.="Updating $student"."'s status for $part.$type to $newscore<br />\n";
202: } else {
203: #$result.="$stuname:$part:$type:unchanged $oldscore to $newscore:<br />\n";
204: }
205: }
206: }
207: if ( scalar(keys(%newrecord)) > 0 ) {
208: $newrecord{"resource.regrader"}="$ENV{'user.name'}:$ENV{'user.domain'}";
209: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$stuname);
210:
211: $result.="Stored away ".scalar(keys(%newrecord))." elements.<br />\n";
212: }
213: return $result;
214: }
215:
216: sub submission {
217: my ($request) = @_;
218: my $url=$ENV{'form.url'};
219: $url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
220: if ($ENV{'form.student'} eq '') { &moreinfo($request,"Need student login id"); return ''; }
221: # if ($ENV{'form.student'} eq '') { &listStudents($request); return ''; }
222: my ($uname,$udom) = &finduser($ENV{'form.student'});
223: if ($uname eq '') { &moreinfo($request,"Unable to find student"); return ''; }
224: my $symb;
225: if ($ENV{'form.symb'}) {
226: $symb=$ENV{'form.symb'};
227: } else {
228: $symb=&Apache::lonnet::symbread($url);
229: }
230: if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
231: my $answer=&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
232: $ENV{'request.course.id'});
233: my $result="<h2> Submission Record </h2> $uname:$udom for $url <br />".$answer;
234: return $result;
235: }
236:
237: sub viewgrades {
238: my ($request) = @_;
239: my $result='';
240:
241: #get resource reference
242: my $url=$ENV{'form.url'};
243: $url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
244: my $symb=$ENV{'form.symb'};
245: if (!$symb) { $symb=&Apache::lonnet::symbread($url); }
246: if ($symb eq '') { $request->print("Unable to handle ambiguous references:$url:."); return ''; }
247:
248: #get classlist
249: my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
250: my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
251: #print "Found $cdom:$cnum:$chome<br />";
252: my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
253: my $headerclr = '"#ccffff"';
254: my $cellclr = '"#ffffcc"';
255:
256: #get list of parts for this problem
257: my (@parts) = &getpartlist($url);
258:
259: $request->print ("<h2><font color=\"#339966\">Manual Grading</font></h2>");
260:
261: #start the form
262: $result = '<form action="/adm/grades" method="post">'."\n".
263: '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
264: '<input type="hidden" name="url" value="'.$url.'" />'."\n".
265: '<input type="hidden" name="command" value="editgrades" />'."\n".
266: '<input type="submit" name="submit" value="Submit Changes" />'."\n".
267: '<table border=0><tr><td bgcolor="#999999">'."\n".
268: '<table border=0>'."\n".
269: '<tr><td bgcolor='.$headerclr.'>UserId</td><td bgcolor='.$headerclr.'>Domain</td>'."\n";
270: foreach my $part (@parts) {
271: my $display=&Apache::lonnet::metadata($url,$part.'.display');
272: if (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
273: $result.='<td bgcolor='.$headerclr.'>'.$display.'</td>'."\n";
274: }
275: $result.="</tr>";
276: #get info for each student
277: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
278: $result.=&viewstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);
279: }
280: $result.='</table></td></tr></table><input type="submit" name="submit" value="Submit Changes" /></form>';
281:
282: return $result;
283: }
284:
285: sub editgrades {
286: my ($request) = @_;
287: my $result='';
288:
289: my $symb=$ENV{'form.symb'};
290: if ($symb eq '') { $request->print("Unable to handle ambiguous references:$symb:$ENV{'form.url'}"); return ''; }
291: my $url=$ENV{'form.url'};
292: #get classlist
293: my ($cdom,$cnum) = split(/_/,$ENV{'request.course.id'});
294: my $chome=$ENV{"course.$ENV{'request.course.id'}.home"};
295: #print "Found $cdom:$cnum:$chome<br />";
296: my (%classlist) = &getclasslist($cdom,$cnum,$chome,'0');
297:
298: #get list of parts for this problem
299: my (@parts) = &getpartlist($url);
300:
301: $result.='<form action="/adm/grades" method="post">'."\n".
302: '<input type="hidden" name="symb" value="'.$symb.'" />'."\n".
303: '<input type="hidden" name="url" value="'.$url.'" />'."\n".
304: '<input type="hidden" name="command" value="viewgrades" />'."\n".
305: '<input type="submit" name="submit" value="See Grades" /> <br />'."\n";
306:
307: foreach my $student ( sort(@{ $classlist{'allids'} }) ) {
308: $result.=&setstudentgrade($url,$symb,$ENV{'request.course.id'},$student,@parts);
309: }
310:
311: $result.='<input type="submit" name="submit" value="See Grades" /></table></form>';
312: return $result;
313: }
314:
315: sub send_header {
316: my ($request)= @_;
317: $request->print(&Apache::lontexconvert::header());
318: # $request->print("
319: #<script>
320: #remotewindow=open('','homeworkremote');
321: #remotewindow.close();
322: #</script>");
323: $request->print('<body bgcolor="#FFFFFF">');
324: }
325:
326: sub send_footer {
327: my ($request)= @_;
328: $request->print('</body>');
329: $request->print(&Apache::lontexconvert::footer());
330: }
331:
332: sub handler {
333: my $request=$_[0];
334:
335: if ( $ENV{'user.name'} eq 'albertel' ) {$Apache::lonxml::debug=1;} else {$Apache::lonxml::debug=0;}
336:
337: if ($ENV{'browser.mathml'}) {
338: $request->content_type('text/xml');
339: } else {
340: $request->content_type('text/html');
341: }
342: $request->send_http_header;
343: return OK if $request->header_only;
344: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
345: my $url=$ENV{'form.url'};
346: my $symb=$ENV{'form.symb'};
347: my $command=$ENV{'form.command'};
348: if (!$url) {
349: my ($temp1,$temp2);
350: ($temp1,$temp2,$ENV{'form.url'})=split(/___/,$symb);
351: $url = $ENV{'form.url'};
352: }
353: &send_header($request);
354: if ($url eq '' && $symb eq '') {
355: if ($ENV{'user.adv'}) {
356: if (($ENV{'form.codeone'}) && ($ENV{'form.codetwo'}) &&
357: ($ENV{'form.codethree'})) {
358: my $token=$ENV{'form.codeone'}.'*'.$ENV{'form.codetwo'}.'*'.
359: $ENV{'form.codethree'};
360: my ($tsymb,$tuname,$tudom,$tcrsid)=
361: &Apache::lonnet::checkin($token);
362: if ($tsymb) {
363: my ($map,$id,$url)=split(/\_\_\_/,$tsymb);
364: if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
365: $request->print(
366: &Apache::lonnet::ssi('/res/'.$url,
367: ('grade_username' => $tuname,
368: 'grade_domain' => $tudom,
369: 'grade_courseid' => $tcrsid,
370: 'grade_symb' => $tsymb)));
371: } else {
372: $request->print('<h1>Not authorized: '.$token.'</h1>');
373: }
374: } else {
375: $request->print('<h1>Not a valid DocID: '.$token.'</h1>');
376: }
377: } else {
378: $request->print(&Apache::lonxml::tokeninputfield());
379: }
380: }
381: } else {
382: $Apache::grades::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
383: if ($command eq 'submission') {
384: $request->print(&listStudents($request)) if ($ENV{'form.student'} eq '');
385: $request->print(&submission($request)) if ($ENV{'form.student'} ne '');
386: } elsif ($command eq 'viewgrades') {
387: $request->print(&viewgrades($request));
388: } elsif ($command eq 'editgrades') {
389: $request->print(&editgrades($request));
390: } else {
391: $request->print("Unknown action:$command:");
392: }
393: }
394: &send_footer($request);
395: return OK;
396: }
397:
398: 1;
399:
400: __END__;
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