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