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