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1 : toenail 2794 ################################################################################
2 :     # WeBWorK Online Homework Delivery System
3 : sh002i 3973 # Copyright © 2000-2006 The WeBWorK Project, http://openwebwork.sf.net/
4 : toenail 2794 #
5 :     #
6 :     # This program is free software; you can redistribute it and/or modify it under
7 :     # the terms of either: (a) the GNU General Public License as published by the
8 :     # Free Software Foundation; either version 2, or (at your option) any later
9 :     # version, or (b) the "Artistic License" which comes with this package.
10 :     #
11 :     # This program is distributed in the hope that it will be useful, but WITHOUT
12 :     # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 :     # FOR A PARTICULAR PURPOSE. See either the GNU General Public License or the
14 :     # Artistic License for more details.
15 :     ################################################################################
16 :    
17 :     package WeBWorK::ContentGenerator::Instructor::ProblemSetDetail;
18 :     use base qw(WeBWorK::ContentGenerator::Instructor);
19 :    
20 :     =head1 NAME
21 :    
22 :     WeBWorK::ContentGenerator::Instructor::ProblemSetDetail - Edit general set and specific user/set information as well as problem information
23 :    
24 :     =cut
25 :    
26 :     use strict;
27 :     use warnings;
28 : gage 4234 #use CGI qw(-nosticky );
29 :     use WeBWorK::CGI;
30 : toenail 2816 use WeBWorK::HTML::ComboBox qw/comboBox/;
31 :     use WeBWorK::Utils qw(readDirectory list2hash listFilesRecursive max);
32 : toenail 2794 use WeBWorK::DB::Record::Set;
33 :     use WeBWorK::Utils::Tasks qw(renderProblems);
34 : toenail 2901 use WeBWorK::Debug;
35 : toenail 2794
36 :     # Important Note: the following two sets of constants may seem similar
37 :     # but they are functionally and semantically different
38 :    
39 :     # these constants determine which fields belong to what type of record
40 : glarose 3377 use constant SET_FIELDS => [qw(set_header hardcopy_header open_date due_date answer_date published assignment_type attempts_per_version version_time_limit versions_per_interval time_interval problem_randorder)];
41 : toenail 2794 use constant PROBLEM_FIELDS =>[qw(source_file value max_attempts)];
42 :     use constant USER_PROBLEM_FIELDS => [qw(problem_seed status num_correct num_incorrect)];
43 :    
44 :     # these constants determine what order those fields should be displayed in
45 :     use constant HEADER_ORDER => [qw(set_header hardcopy_header)];
46 :     use constant PROBLEM_FIELD_ORDER => [qw(problem_seed status value max_attempts attempted last_answer num_correct num_incorrect)];
47 :    
48 : glarose 3377 # we exclude the gateway set fields from the set field order, because they
49 :     # are only displayed for sets that are gateways. this results in a bit of
50 :     # convoluted logic below, but it saves burdening people who are only using
51 :     # homework assignments with all of the gateway parameters
52 :     use constant SET_FIELD_ORDER => [qw(open_date due_date answer_date published assignment_type)];
53 :     use constant GATEWAY_SET_FIELD_ORDER => [qw(attempts_per_version version_time_limit time_interval versions_per_interval problem_randorder)];
54 :    
55 : toenail 2794 # this constant is massive hash of information corresponding to each db field.
56 :     # override indicates for how many students at a time a field can be overridden
57 :     # this hash should make it possible to NEVER have explicitly: if (somefield) { blah() }
58 :     #
59 :     # All but name are optional
60 :     # some_field => {
61 :     # name => "Some Field",
62 :     # type => "edit", # edit, choose, hidden, view - defines how the data is displayed
63 :     # size => "50", # size of the edit box (if any)
64 :     # override => "none", # none, one, any, all - defines for whom this data can/must be overidden
65 :     # module => "problem_list", # WeBWorK module
66 :     # default => 0 # if a field cannot default to undefined/empty what should it default to
67 :     # labels => { # special values can be hashed to display labels
68 :     # 1 => "Yes",
69 :     # 0 => "No",
70 :     # },
71 : gage 3790
72 :     use constant BLANKPROBLEM => 'blankProblem.pg';
73 :    
74 : toenail 2794 use constant FIELD_PROPERTIES => {
75 :     # Set information
76 :     set_header => {
77 :     name => "Set Header",
78 :     type => "edit",
79 :     size => "50",
80 :     override => "all",
81 :     module => "problem_list",
82 :     default => "",
83 :     },
84 :     hardcopy_header => {
85 :     name => "Hardcopy Header",
86 :     type => "edit",
87 :     size => "50",
88 :     override => "all",
89 :     module => "hardcopy_preselect_set",
90 :     default => "",
91 :     },
92 :     open_date => {
93 :     name => "Opens",
94 :     type => "edit",
95 : toenail 2901 size => "26",
96 : toenail 2794 override => "any",
97 : toenail 2841 labels => {
98 : toenail 3061 #0 => "None Specified",
99 : toenail 2841 "" => "None Specified",
100 :     },
101 : toenail 2794 },
102 :     due_date => {
103 :     name => "Answers Due",
104 :     type => "edit",
105 : toenail 2901 size => "26",
106 : toenail 2794 override => "any",
107 : toenail 2841 labels => {
108 : toenail 3061 #0 => "None Specified",
109 : toenail 2841 "" => "None Specified",
110 :     },
111 : toenail 2794 },
112 :     answer_date => {
113 :     name => "Answers Available",
114 :     type => "edit",
115 : toenail 2901 size => "26",
116 : toenail 2794 override => "any",
117 : toenail 2841 labels => {
118 : toenail 3061 #0 => "None Specified",
119 : toenail 2841 "" => "None Specified",
120 :     },
121 : toenail 2794 },
122 :     published => {
123 :     name => "Visible to Students",
124 :     type => "choose",
125 :     override => "all",
126 :     choices => [qw( 0 1 )],
127 :     labels => {
128 :     1 => "Yes",
129 :     0 => "No",
130 :     },
131 :     },
132 : glarose 3377 assignment_type => {
133 :     name => "Assignment type",
134 :     type => "choose",
135 :     override => "all",
136 :     choices => [qw( default gateway proctored_gateway )],
137 :     labels => { default => "homework",
138 :     gateway => "gateway/quiz",
139 :     proctored_gateway => "proctored gateway/quiz",
140 :     },
141 :     },
142 :     attempts_per_version => {
143 :     name => "Attempts per Version (untested for > 1)",
144 :     type => "edit",
145 :     size => "3",
146 :     override => "all",
147 :     # labels => { "" => 1 },
148 :     },
149 :     version_time_limit => {
150 :     name => "Test Time Limit (sec)",
151 :     type => "edit",
152 :     size => "4",
153 : glarose 3853 override => "any",
154 : glarose 3377 labels => { "" => 0 }, # I'm not sure this is quite right
155 :     },
156 :     time_interval => {
157 :     name => "Time Interval for New Versions (sec)",
158 :     type => "edit",
159 :     size => "5",
160 :     override => "all",
161 :     labels => { "" => 0 },
162 :     },
163 :     versions_per_interval => {
164 :     name => "Number of New Versions per Time Interval (0=infty)",
165 :     type => "edit",
166 :     size => "3",
167 :     override => "all",
168 : glarose 3853 labels => { "" => 0 },
169 : glarose 3377 # labels => { "" => 1 },
170 :     },
171 :     problem_randorder => {
172 :     name => "Order Problems Randomly",
173 :     type => "choose",
174 :     choices => [qw( 0 1 )],
175 :     override => "all",
176 :     labels => { 0 => "No", 1 => "Yes" },
177 :     },
178 : toenail 2794 # Problem information
179 :     source_file => {
180 :     name => "Source File",
181 :     type => "edit",
182 :     size => 50,
183 :     override => "any",
184 :     default => "",
185 :     },
186 :     value => {
187 :     name => "Weight",
188 :     type => "edit",
189 : toenail 2901 size => 6,
190 : toenail 2794 override => "any",
191 :     },
192 :     max_attempts => {
193 :     name => "Max attempts",
194 :     type => "edit",
195 : toenail 2901 size => 6,
196 : toenail 2794 override => "any",
197 :     labels => {
198 :     "-1" => "unlimited",
199 :     },
200 :     },
201 :     problem_seed => {
202 :     name => "Seed",
203 :     type => "edit",
204 : toenail 2901 size => 6,
205 : toenail 2794 override => "one",
206 :    
207 :     },
208 :     status => {
209 :     name => "Status",
210 :     type => "edit",
211 : toenail 2901 size => 6,
212 :     override => "one",
213 : toenail 2794 default => 0,
214 :     },
215 :     attempted => {
216 :     name => "Attempted",
217 :     type => "hidden",
218 :     override => "none",
219 :     choices => [qw( 0 1 )],
220 :     labels => {
221 :     1 => "Yes",
222 :     0 => "No",
223 :     },
224 :     default => 0,
225 :     },
226 :     last_answer => {
227 :     name => "Last Answer",
228 :     type => "hidden",
229 :     override => "none",
230 :     },
231 :     num_correct => {
232 :     name => "Correct",
233 :     type => "hidden",
234 :     override => "none",
235 :     default => 0,
236 :     },
237 :     num_incorrect => {
238 :     name => "Incorrect",
239 :     type => "hidden",
240 :     override => "none",
241 :     default => 0,
242 :     },
243 :     };
244 :    
245 :     # Create a table of fields for the given parameters, one row for each db field
246 :     # if only the setID is included, it creates a table of set information
247 :     # if the problemID is included, it creates a table of problem information
248 :     sub FieldTable {
249 : sh002i 2913 my ($self, $userID, $setID, $problemID, $globalRecord, $userRecord) = @_;
250 : toenail 2794
251 :     my $r = $self->r;
252 :     my @editForUser = $r->param('editForUser');
253 :     my $forUsers = scalar(@editForUser);
254 :     my $forOneUser = $forUsers == 1;
255 :    
256 :     my @fieldOrder;
257 : glarose 3377 my $gwoutput = '';
258 : toenail 2794 if (defined $problemID) {
259 :     @fieldOrder = @{ PROBLEM_FIELD_ORDER() };
260 :     } else {
261 :     @fieldOrder = @{ SET_FIELD_ORDER() };
262 : glarose 3377
263 :     # gateway data fields are included only if the set is a gateway
264 :     if ( $globalRecord->assignment_type() =~ /gateway/ ) {
265 : glarose 3853 my $gwhdr = "\n<!-- begin gwoutput table -->\n";
266 :     my $nF = 0;
267 :    
268 :     foreach my $gwfield ( @{ GATEWAY_SET_FIELD_ORDER() } ) {
269 :     my @fieldData =
270 :     ($self->FieldHTML($userID, $setID, $problemID,
271 :     $globalRecord, $userRecord,
272 :     $gwfield));
273 : gage 4063 if ( @fieldData && defined($fieldData[1]) and $fieldData[1] ne '' ) {
274 : glarose 3853 $nF = @fieldData if ( @fieldData > $nF );
275 :     $gwoutput .= CGI::Tr({}, CGI::td({}, [@fieldData]));
276 : glarose 3377 }
277 : glarose 3853 }
278 :     $gwhdr .= CGI::Tr({},CGI::td({colspan=>$nF},
279 :     CGI::em("Gateway parameters")))
280 :     if ( $nF );
281 :     $gwoutput = "$gwhdr$gwoutput\n" .
282 :     "<!-- end gwoutput table -->\n";
283 : glarose 3377 }
284 : toenail 2794 }
285 :    
286 :     my $output = CGI::start_table({border => 0, cellpadding => 1});
287 : sh002i 2948 if ($forUsers) {
288 :     $output .= CGI::Tr(
289 : gage 2952 CGI::th({colspan=>"2"}, "&nbsp;"),
290 : toenail 3061 CGI::th({colspan=>"1"}, "User Values"),
291 :     CGI::th({}, "Class values"),
292 : sh002i 2948 );
293 :     }
294 :    
295 : toenail 2794 foreach my $field (@fieldOrder) {
296 :     my %properties = %{ FIELD_PROPERTIES()->{$field} };
297 :     unless ($properties{type} eq "hidden") {
298 : glarose 3377 $output .= CGI::Tr({}, CGI::td({}, [$self->FieldHTML($userID, $setID, $problemID, $globalRecord, $userRecord, $field)])) . "\n";
299 : toenail 2794 }
300 : glarose 3377 # this is a rather artifical addition to include gateway fields, which we
301 :     # only want to show for gateways
302 : glarose 3853 $output .= "$gwoutput\n"
303 : glarose 3377 if ( $field eq 'assignment_type' &&
304 :     $globalRecord->assignment_type() =~ /gateway/ );
305 : toenail 2794 }
306 :    
307 :     if (defined $problemID) {
308 : sh002i 2913 #my $problemRecord = $r->{db}->getUserProblem($userID, $setID, $problemID);
309 :     my $problemRecord = $userRecord; # we get this from the caller, hopefully
310 : toenail 2794 $output .= CGI::Tr({}, CGI::td({}, ["","Attempts", ($problemRecord->num_correct || 0) + ($problemRecord->num_incorrect || 0)])) if $forOneUser;
311 :     }
312 :     $output .= CGI::end_table();
313 :    
314 :     return $output;
315 :     }
316 :    
317 :     # Returns a list of information and HTML widgets
318 :     # for viewing and editing the specified db fields
319 :     # if only the setID is included, it creates a list of set information
320 :     # if the problemID is included, it creates a list of problem information
321 :     sub FieldHTML {
322 : sh002i 2913 my ($self, $userID, $setID, $problemID, $globalRecord, $userRecord, $field) = @_;
323 : toenail 2794
324 :     my $r = $self->r;
325 :     my $db = $r->db;
326 :     my @editForUser = $r->param('editForUser');
327 :     my $forUsers = scalar(@editForUser);
328 :     my $forOneUser = $forUsers == 1;
329 :    
330 : sh002i 2913 #my ($globalRecord, $userRecord, $mergedRecord);
331 :     #if (defined $problemID) {
332 :     # $globalRecord = $db->getGlobalProblem($setID, $problemID);
333 :     # $userRecord = $db->getUserProblem($userID, $setID, $problemID);
334 :     # #$mergedRecord = $db->getMergedProblem($userID, $setID, $problemID); # never used --sam
335 :     #} else {
336 :     # $globalRecord = $db->getGlobalSet($setID);
337 :     # $userRecord = $db->getUserSet($userID, $setID);
338 :     # #$mergedRecord = $db->getMergedSet($userID, $setID); # never user --sam
339 :     #}
340 : toenail 2794
341 :     return "No data exists for set $setID and problem $problemID" unless $globalRecord;
342 :     return "No user specific data exists for user $userID" if $forOneUser and $globalRecord and not $userRecord;
343 :    
344 :     my %properties = %{ FIELD_PROPERTIES()->{$field} };
345 :     my %labels = %{ $properties{labels} };
346 :     return "" if $properties{type} eq "hidden";
347 :     return "" if $properties{override} eq "one" && not $forOneUser;
348 :     return "" if $properties{override} eq "none" && not $forOneUser;
349 :     return "" if $properties{override} eq "all" && $forUsers;
350 :    
351 :     my $edit = ($properties{type} eq "edit") && ($properties{override} ne "none");
352 :     my $choose = ($properties{type} eq "choose") && ($properties{override} ne "none");
353 :    
354 :     my $globalValue = $globalRecord->{$field};
355 : gage 3046 # use defined instead of value in order to allow 0 to printed, e.g. for the 'value' field
356 :     $globalValue = (defined($globalValue)) ? ($labels{$globalValue || ""} || $globalValue) : "";
357 : toenail 2794 my $userValue = $userRecord->{$field};
358 : gage 3046 $userValue = (defined($userValue)) ? ($labels{$userValue || ""} || $userValue) : "";
359 : toenail 2794
360 :     if ($field =~ /_date/) {
361 : toenail 3061 $globalValue = $self->formatDateTime($globalValue) if defined $globalValue && $globalValue ne $labels{""};
362 :     $userValue = $self->formatDateTime($userValue) if defined $userValue && $userValue ne $labels{""};
363 : toenail 2794 }
364 :    
365 :     # check to make sure that a given value can be overridden
366 :     my %canOverride = map { $_ => 1 } (@{ PROBLEM_FIELDS() }, @{ SET_FIELDS() });
367 :     my $check = $canOverride{$field};
368 :    
369 :     # $recordType is a shorthand in the return statement for problem or set
370 :     # $recordID is a shorthand in the return statement for $problemID or $setID
371 :     my $recordType = "";
372 :     my $recordID = "";
373 :     if (defined $problemID) {
374 :     $recordType = "problem";
375 :     $recordID = $problemID;
376 :     } else {
377 :     $recordType = "set";
378 :     $recordID = $setID;
379 :     }
380 :    
381 :     # $inputType contains either an input box or a popup_menu for changing a given db field
382 :     my $inputType = "";
383 :     if ($edit) {
384 :     $inputType = CGI::input({
385 :     name => "$recordType.$recordID.$field",
386 : toenail 2834 value => $r->param("$recordType.$recordID.$field") || ($forUsers ? $userValue : $globalValue),
387 : toenail 2794 size => $properties{size} || 5,
388 :     });
389 :     } elsif ($choose) {
390 :     # Note that in popup menus, you're almost guaranteed to have the choices hashed to labels in %properties
391 :     # but $userValue and and $globalValue are the values in the hash not the keys
392 :     # so we have to use the actual db record field values to select our default here.
393 :     $inputType = CGI::popup_menu({
394 :     name => "$recordType.$recordID.$field",
395 :     values => $properties{choices},
396 :     labels => \%labels,
397 : toenail 2834 default => $r->param("$recordType.$recordID.$field") || ($forUsers ? $userRecord->$field : $globalRecord->$field),
398 : toenail 2794 });
399 :     }
400 :    
401 :     return (($forUsers && $edit && $check) ? CGI::checkbox({
402 :     type => "checkbox",
403 :     name => "$recordType.$recordID.$field.override",
404 :     label => "",
405 :     value => $field,
406 : toenail 3061 checked => $r->param("$recordType.$recordID.$field.override") || ($userValue ne ($labels{""} || "") ? 1 : 0),
407 : toenail 2794 }) : "",
408 :     $properties{name},
409 :     $inputType,
410 :     $forUsers ? " $globalValue" : "",
411 :     );
412 :     }
413 :    
414 :     # creates a popup menu of all possible problem numbers (for possible rearranging)
415 :     sub problem_number_popup {
416 :     my $num = shift;
417 :     my $total = shift;
418 :     return (CGI::popup_menu(-name => "problem_num_$num",
419 :     -values => [1..$total],
420 :     -default => $num));
421 :     }
422 :    
423 :     # handles rearrangement necessary after changes to problem ordering
424 :     sub handle_problem_numbers {
425 :     my $newProblemNumbersref = shift;
426 :     my %newProblemNumbers = %$newProblemNumbersref;
427 :     my $maxNum = shift;
428 :     my $db = shift;
429 : toenail 2816 my $setID = shift;
430 : toenail 2794 my $force = shift || 0;
431 :     my @sortme=();
432 :     my ($j, $val);
433 :    
434 : sh002i 3802 # keys are current problem numbers, values are target problem numbers
435 : toenail 2794 foreach $j (keys %newProblemNumbers) {
436 : sh002i 3802 # we don't want to act unless all problems have been assigned a new problem number, so if any have not, return
437 : toenail 2794 return "" if (not defined $newProblemNumbers{"$j"});
438 : sh002i 3802 # if the problem has been given a new number, we reduce the "score" of the problem by the original number of the problem
439 :     # when multiple problems are assigned the same number, this results in the last one ending up first -- FIXME?
440 : toenail 2794 if ($newProblemNumbers{"$j"} != $j) {
441 : sh002i 3802 # force always gets set if reordering is done, so don't expect to be able to delete a problem,
442 :     # reorder some other problems, and end up with a hole -- FIXME
443 : toenail 2794 $force = 1;
444 :     $val = 1000 * $newProblemNumbers{$j} - $j;
445 :     } else {
446 :     $val = 1000 * $newProblemNumbers{$j};
447 :     }
448 : sh002i 3802 # store a mapping between current problem number and score (based on currnet and new problem number)
449 : toenail 2794 push @sortme, [$j, $val];
450 : sh002i 3802 # replace new problem numbers in hash with the (global) problems themselves
451 : toenail 2816 $newProblemNumbers{$j} = $db->getGlobalProblem($setID, $j);
452 :     die "global $j for set $setID not found." unless $newProblemNumbers{$j};
453 : toenail 2794 }
454 :    
455 : sh002i 3802 # we don't have to do anything if we're not getting rid of holes
456 : toenail 2794 return "" unless $force;
457 :    
458 : sh002i 3802 # sort the curr. prob. num./score pairs by score
459 : toenail 2794 @sortme = sort {$a->[1] <=> $b->[1]} @sortme;
460 :     # now, for global and each user with this set, loop through problem list
461 :     # get all of the problem records
462 :     # assign new problem numbers
463 :     # loop - if number is new, put the problem record
464 :     # print "Sorted to get ". join(', ', map {$_->[0] } @sortme) ."<p>\n";
465 :    
466 :    
467 :     # Now, three stages. First global values
468 :    
469 :     for ($j = 0; $j < scalar @sortme; $j++) {
470 : sh002i 3802 if($sortme[$j][0] == $j + 1) {
471 :     # if the jth problem (according to the new ordering) is in the right place (problem IDs are numbered from 1, hence $j+1)
472 : toenail 2794 # do nothing
473 :     } elsif (not defined $newProblemNumbers{$j + 1}) {
474 : sh002i 3802 # otherwise, if there's a hole for it, add it there
475 :     $newProblemNumbers{$sortme[$j][0]}->problem_id($j + 1);
476 :     $db->addGlobalProblem($newProblemNumbers{$sortme[$j][0]});
477 : toenail 2794 } else {
478 : sh002i 3802 # otherwise, overwrite the data for the problem that's already there with the jth problem's data (with a changed problemID)
479 :     $newProblemNumbers{$sortme[$j][0]}->problem_id($j + 1);
480 :     $db->putGlobalProblem($newProblemNumbers{$sortme[$j][0]});
481 : toenail 2794 }
482 :     }
483 :    
484 : toenail 2816 my @setUsers = $db->listSetUsers($setID);
485 : toenail 2794 my (@problist, $user);
486 :     my $globalUserID = $db->{set}->{params}->{globalUserID} || '';
487 :    
488 :     foreach $user (@setUsers) {
489 :     # if this is gdbm, the global user has been taken care of above.
490 :     # we can't do it again. This relies on the global user not having
491 :     # a blank name.
492 :     next if $globalUserID eq $user;
493 : sh002i 3802 # grab a copy of each UserProblem for this user. @problist can be sparse (if problems were deleted)
494 : toenail 2794 for $j (keys %newProblemNumbers) {
495 : toenail 2816 $problist[$j] = $db->getUserProblem($user, $setID, $j);
496 : toenail 2794 }
497 : sh002i 3802 use Data::Dumper;
498 : toenail 2794 for($j = 0; $j < scalar @sortme; $j++) {
499 : sh002i 3802 if ($sortme[$j][0] == $j + 1) {
500 :     # same as above -- the jth problem is in the right place, so don't worry about it
501 : toenail 2794 # do nothing
502 : sh002i 3802 } elsif ($problist[$sortme[$j][0]]) {
503 :     # we've made sure the user's problem actually exists HERE, since we want to be able to fail gracefullly if it doesn't
504 :     # the problem with the original conditional below is that %newProblemNumbers maps oldids => global problem record
505 :     # we need to check if the target USER PROBLEM exists, which is what @problist knows
506 :     #if (not defined $newProblemNumbers{$j + 1}) {
507 :     if (not defined $problist[$j+1]) {
508 :     # same as above -- there's a hole for that problem to go into, so add it in its new place
509 :     $problist[$sortme[$j][0]]->problem_id($j + 1);
510 :     $db->addUserProblem($problist[$sortme[$j][0]]);
511 :     } else {
512 :     # same as above -- there's a problem already there, so overwrite its data with the data from the jth problem
513 :     $problist[$sortme[$j][0]]->problem_id($j + 1);
514 :     $db->putUserProblem($problist[$sortme[$j][0]]);
515 :     }
516 :     } else {
517 :     warn "UserProblem missing for user=$user set=$setID problem=$sortme[$j][0]. This may indicate database corruption.\n";
518 :     # when a problem doesn't exist in the target slot, a new problem gets added there, but the original problem
519 :     # never gets overwritten (because there wan't a problem it would have to get exchanged with)
520 :     # i think this can get pretty complex. consider 1=>2, 2=>3, 3=>4, 4=>1 where problem 1 doesn't exist for some user:
521 :     # @sortme[$j][0] will contain: 4, 1, 2, 3
522 :     # - problem 1 will get **added** with the data from problem 4 (because problem 1 doesn't exist for this user)
523 :     # - problem 2 will get overwritten with the data from problem 1
524 :     # - problem 3 will get overwritten with the data from problem 2
525 :     # - nothing will happend to problem 4, since problem 1 doesn't exit
526 :     # so the solution is to delete problem 4 altogether!
527 :     # here's the fix:
528 :    
529 :     # the data from problem $j+1 was/will be moved to another problem slot,
530 :     # but there's no problem $sortme[$j][0] to replace it. thus, we delete it now.
531 :     $db->deleteUserProblem($user, $setID, $j+1);
532 :     }
533 : toenail 2794 }
534 :     }
535 :    
536 : sh002i 3802 # any problems with IDs above $maxNum get deleted -- presumably their data has been copied into problems with lower IDs
537 : toenail 2794 foreach ($j = scalar @sortme; $j < $maxNum; $j++) {
538 :     if (defined $newProblemNumbers{$j + 1}) {
539 : toenail 2816 $db->deleteGlobalProblem($setID, $j+1);
540 : toenail 2794 }
541 :     }
542 :    
543 : sh002i 3802 # return a string form of the old problem IDs in the new order (not used by caller, incidentally)
544 : toenail 2794 return join(', ', map {$_->[0]} @sortme);
545 :     }
546 :    
547 :     # swap index given with next bigger index
548 :     # leftover from when we had up/down buttons
549 :     # maybe we will bring them back
550 :    
551 : sh002i 2913 #sub moveme {
552 :     # my $index = shift;
553 :     # my $db = shift;
554 :     # my $setID = shift;
555 :     # my (@problemIDList) = @_;
556 :     # my ($prob1, $prob2, $prob);
557 :     #
558 :     # foreach my $problemID (@problemIDList) {
559 :     # my $problemRecord = $db->getGlobalProblem($setID, $problemID); # checked
560 :     # die "global $problemID for set $setID not found." unless $problemRecord;
561 :     # if ($problemRecord->problem_id == $index) {
562 :     # $prob1 = $problemRecord;
563 :     # } elsif ($problemRecord->problem_id == $index + 1) {
564 :     # $prob2 = $problemRecord;
565 :     # }
566 :     # }
567 :     # if (not defined $prob1 or not defined $prob2) {
568 :     # die "cannot find problem $index or " . ($index + 1);
569 :     # }
570 :     #
571 :     # $prob1->problem_id($index + 1);
572 :     # $prob2->problem_id($index);
573 :     # $db->putGlobalProblem($prob1);
574 :     # $db->putGlobalProblem($prob2);
575 :     #
576 :     # my @setUsers = $db->listSetUsers($setID);
577 :     #
578 :     # my $user;
579 :     # foreach $user (@setUsers) {
580 :     # $prob1 = $db->getUserProblem($user, $setID, $index); #checked
581 :     # die " problem $index for set $setID and effective user $user not found"
582 :     # unless $prob1;
583 :     # $prob2 = $db->getUserProblem($user, $setID, $index+1); #checked
584 :     # die " problem $index for set $setID and effective user $user not found"
585 :     # unless $prob2;
586 :     # $prob1->problem_id($index+1);
587 :     # $prob2->problem_id($index);
588 :     # $db->putUserProblem($prob1);
589 :     # $db->putUserProblem($prob2);
590 :     # }
591 :     #}
592 : toenail 2794
593 :     # primarily saves any changes into the correct set or problem records (global vs user)
594 :     # also deals with deleting or rearranging problems
595 :     sub initialize {
596 :     my ($self) = @_;
597 :     my $r = $self->r;
598 :     my $db = $r->db;
599 :     my $ce = $r->ce;
600 :     my $authz = $r->authz;
601 :     my $user = $r->param('user');
602 :     my $setID = $r->urlpath->arg("setID");
603 :     my $setRecord = $db->getGlobalSet($setID); # checked
604 :     die "global set $setID not found." unless $setRecord;
605 :    
606 :     $self->{set} = $setRecord;
607 :     my @editForUser = $r->param('editForUser');
608 :     # some useful booleans
609 :     my $forUsers = scalar(@editForUser);
610 :     my $forOneUser = $forUsers == 1;
611 :    
612 :     # Check permissions
613 :     return unless ($authz->hasPermissions($user, "access_instructor_tools"));
614 :     return unless ($authz->hasPermissions($user, "modify_problem_sets"));
615 :    
616 :    
617 :     my %properties = %{ FIELD_PROPERTIES() };
618 :    
619 :     # takes a hash of hashes and inverts it
620 :     my %undoLabels;
621 :     foreach my $key (keys %properties) {
622 :     %{ $undoLabels{$key} } = map { $properties{$key}->{labels}->{$_} => $_ } keys %{ $properties{$key}->{labels} };
623 :     }
624 :    
625 : toenail 2816 # Unfortunately not everyone uses Javascript enabled browsers so
626 :     # we must fudge the information coming from the ComboBoxes
627 :     # Since the textfield and menu both have the same name, we get an array of two elements
628 :     # We then reset the param to the first if its not-empty or the second (empty or not).
629 :     foreach ( @{ HEADER_ORDER() } ) {
630 :     my @values = $r->param("set.$setID.$_");
631 : toenail 2817 my $value = $values[0] || $values[1] || "";
632 : toenail 2816 $r->param("set.$setID.$_", $value);
633 :     }
634 : toenail 2794
635 : toenail 2901 #####################################################################
636 :     # Check date information
637 :     #####################################################################
638 :    
639 :     my ($open_date, $due_date, $answer_date);
640 :     my $error = 0;
641 : toenail 2794 if (defined $r->param('submit_changes')) {
642 : toenail 3061 my @names = ("open_date", "due_date", "answer_date");
643 :    
644 :     my %dates = map { $_ => $r->param("set.$setID.$_") } @names;
645 :     %dates = map {
646 :     my $unlabel = $undoLabels{$_}->{$dates{$_}};
647 :     $_ => defined $unlabel ? $setRecord->$_ : $self->parseDateTime($dates{$_})
648 :     } @names;
649 : toenail 2901
650 : toenail 3061 ($open_date, $due_date, $answer_date) = map { $dates{$_} } @names;
651 : toenail 2794
652 : toenail 2901 if ($answer_date < $due_date || $answer_date < $open_date) {
653 :     $self->addbadmessage("Answers cannot be made available until on or after the due date!");
654 :     $error = $r->param('submit_changes');
655 :     }
656 :    
657 :     if ($due_date < $open_date) {
658 :     $self->addbadmessage("Answers cannot be due until on or after the open date!");
659 :     $error = $r->param('submit_changes');
660 :     }
661 :    
662 : sh002i 3647 # make sure the dates are not more than 10 years in the future
663 :     my $curr_time = time;
664 :     my $seconds_per_year = 31_556_926;
665 :     my $cutoff = $curr_time + $seconds_per_year*10;
666 :     if ($open_date > $cutoff) {
667 :     $self->addbadmessage("Error: open date cannot be more than 10 years from now in set $setID");
668 :     $error = $r->param('submit_changes');
669 :     }
670 :     if ($due_date > $cutoff) {
671 :     $self->addbadmessage("Error: due date cannot be more than 10 years from now in set $setID");
672 :     $error = $r->param('submit_changes');
673 :     }
674 :     if ($answer_date > $cutoff) {
675 :     $self->addbadmessage("Error: answer date cannot be more than 10 years from now in set $setID");
676 :     $error = $r->param('submit_changes');
677 :     }
678 :    
679 :    
680 : toenail 2901 if ($error) {
681 :     $self->addbadmessage("No changes were saved!");
682 :     }
683 :     }
684 : sh002i 3647
685 : toenail 2901 if (defined $r->param('submit_changes') && !$error) {
686 :    
687 : sh002i 2913 #my $setRecord = $db->getGlobalSet($setID); # already fetched above --sam
688 : toenail 2901
689 : toenail 2794 #####################################################################
690 :     # Save general set information (including headers)
691 :     #####################################################################
692 :    
693 :     if ($forUsers) {
694 :     my @userRecords = $db->getUserSets(map { [$_, $setID] } @editForUser);
695 :     foreach my $record (@userRecords) {
696 :     foreach my $field ( @{ SET_FIELDS() } ) {
697 :     next unless canChange($forUsers, $field);
698 : toenail 3061 my $override = $r->param("set.$setID.$field.override");
699 : toenail 2794
700 :     if (defined $override && $override eq $field) {
701 :    
702 :     my $param = $r->param("set.$setID.$field");
703 : toenail 2841 $param = $properties{$field}->{default} || "" unless defined $param && $param ne "";
704 : toenail 3061 my $unlabel = $undoLabels{$field}->{$param};
705 :     $param = $unlabel if defined $unlabel;
706 :     # $param = $undoLabels{$field}->{$param} || $param;
707 : toenail 2794 if ($field =~ /_date/) {
708 : toenail 3061 $param = $self->parseDateTime($param) unless defined $unlabel;
709 : toenail 2794 }
710 :     $record->$field($param);
711 :     } else {
712 :     $record->$field(undef);
713 :     }
714 : toenail 3061
715 : toenail 2794 }
716 :     $db->putUserSet($record);
717 :     }
718 :     } else {
719 :     foreach my $field ( @{ SET_FIELDS() } ) {
720 :     next unless canChange($forUsers, $field);
721 :    
722 :     my $param = $r->param("set.$setID.$field");
723 : toenail 2841 $param = $properties{$field}->{default} || "" unless defined $param && $param ne "";
724 : toenail 3061 my $unlabel = $undoLabels{$field}->{$param};
725 :     $param = $unlabel if defined $unlabel;
726 : toenail 2794 if ($field =~ /_date/) {
727 : toenail 3061 $param = $self->parseDateTime($param) unless defined $unlabel;
728 : toenail 2794 }
729 :     $setRecord->$field($param);
730 :     }
731 :     $db->putGlobalSet($setRecord);
732 :     }
733 : sh002i 3721
734 : toenail 2794 #####################################################################
735 :     # Save problem information
736 :     #####################################################################
737 :    
738 : toenail 2901 my @problemIDs = sort { $a <=> $b } $db->listGlobalProblems($setID);;
739 : toenail 2816 my @problemRecords = $db->getGlobalProblems(map { [$setID, $_] } @problemIDs);
740 :     foreach my $problemRecord (@problemRecords) {
741 : toenail 2794 my $problemID = $problemRecord->problem_id;
742 :     die "Global problem $problemID for set $setID not found." unless $problemRecord;
743 :    
744 :     if ($forUsers) {
745 :     # Since we're editing for specific users, we don't allow the GlobalProblem record to be altered on that same page
746 :     # So we only need to make changes to the UserProblem record and only then if we are overriding a value
747 :     # in the GlobalProblem record or for fields unique to the UserProblem record.
748 :    
749 :     my @userIDs = @editForUser;
750 :     my @userProblemIDs = map { [$_, $setID, $problemID] } @userIDs;
751 :     my @userProblemRecords = $db->getUserProblems(@userProblemIDs);
752 :     foreach my $record (@userProblemRecords) {
753 :    
754 :     my $changed = 0; # keep track of any changes, if none are made, avoid unnecessary db accesses
755 :     foreach my $field ( @{ PROBLEM_FIELDS() } ) {
756 :     next unless canChange($forUsers, $field);
757 :    
758 :     my $override = $r->param("problem.$problemID.$field.override");
759 :     if (defined $override && $override eq $field) {
760 :    
761 :     my $param = $r->param("problem.$problemID.$field");
762 : toenail 2841 $param = $properties{$field}->{default} || "" unless defined $param && $param ne "";
763 : toenail 3061 my $unlabel = $undoLabels{$field}->{$param};
764 :     $param = $unlabel if defined $unlabel;
765 : toenail 2794 $changed ||= changed($record->$field, $param);
766 :     $record->$field($param);
767 :     } else {
768 :     $changed ||= changed($record->$field, undef);
769 :     $record->$field(undef);
770 :     }
771 :    
772 :     }
773 :    
774 :     foreach my $field ( @{ USER_PROBLEM_FIELDS() } ) {
775 :     next unless canChange($forUsers, $field);
776 :    
777 :     my $param = $r->param("problem.$problemID.$field");
778 : toenail 2841 $param = $properties{$field}->{default} || "" unless defined $param && $param ne "";
779 : toenail 3061 my $unlabel = $undoLabels{$field}->{$param};
780 :     $param = $unlabel if defined $unlabel;
781 : toenail 2794 $changed ||= changed($record->$field, $param);
782 :     $record->$field($param);
783 :     }
784 :     $db->putUserProblem($record) if $changed;
785 :     }
786 :     } else {
787 :     # Since we're editing for ALL set users, we will make changes to the GlobalProblem record.
788 :     # We may also have instances where a field is unique to the UserProblem record but we want
789 :     # all users to (at least initially) have the same value
790 :    
791 :     # this only edits a globalProblem record
792 :     my $changed = 0; # keep track of any changes, if none are made, avoid unnecessary db accesses
793 :     foreach my $field ( @{ PROBLEM_FIELDS() } ) {
794 :     next unless canChange($forUsers, $field);
795 :    
796 :     my $param = $r->param("problem.$problemID.$field");
797 : toenail 2841 $param = $properties{$field}->{default} || "" unless defined $param && $param ne "";
798 : toenail 3061 my $unlabel = $undoLabels{$field}->{$param};
799 :     $param = $unlabel if defined $unlabel;
800 : toenail 2794 $changed ||= changed($problemRecord->$field, $param);
801 :     $problemRecord->$field($param);
802 :     }
803 :     $db->putGlobalProblem($problemRecord) if $changed;
804 :    
805 :    
806 :     # sometimes (like for status) we might want to change an attribute in
807 :     # the userProblem record for every assigned user
808 :     # However, since this data is stored in the UserProblem records,
809 :     # it won't be displayed once its been changed and if you hit "Save Changes" again
810 :     # it gets erased
811 :    
812 :     # So we'll enforce that there be something worth putting in all the UserProblem records
813 :     # This also will make hitting "Save Changes" on the global page MUCH faster
814 :     my %useful;
815 :     foreach my $field ( @{ USER_PROBLEM_FIELDS() } ) {
816 :     my $param = $r->param("problem.$problemID.$field");
817 :     $useful{$field} = 1 if defined $param and $param ne "";
818 :     }
819 :    
820 :     if (keys %useful) {
821 :     my @userIDs = $db->listProblemUsers($setID, $problemID);
822 :     my @userProblemIDs = map { [$_, $setID, $problemID] } @userIDs;
823 :     my @userProblemRecords = $db->getUserProblems(@userProblemIDs);
824 :     foreach my $record (@userProblemRecords) {
825 :     my $changed = 0; # keep track of any changes, if none are made, avoid unnecessary db accesses
826 : toenail 2901 foreach my $field ( keys %useful ) {
827 : toenail 2794 next unless canChange($forUsers, $field);
828 : toenail 2901
829 : toenail 2794 my $param = $r->param("problem.$problemID.$field");
830 : toenail 2841 $param = $properties{$field}->{default} || "" unless defined $param && $param ne "";
831 : toenail 3061 my $unlabel = $undoLabels{$field}->{$param};
832 :     $param = $unlabel if defined $unlabel;
833 : toenail 2794 $changed ||= changed($record->$field, $param);
834 :     $record->$field($param);
835 :     }
836 :     $db->putUserProblem($record) if $changed;
837 :     }
838 :     }
839 :     }
840 :     }
841 : toenail 2834
842 : toenail 2901 # Mark the specified problems as correct for all users
843 :     foreach my $problemID ($r->param('markCorrect')) {
844 :     my @userProblemIDs = map { [$_, $setID, $problemID] } ($forUsers ? @editForUser : $db->listProblemUsers($setID, $problemID));
845 :     my @userProblemRecords = $db->getUserProblems(@userProblemIDs);
846 :     foreach my $record (@userProblemRecords) {
847 :     if (defined $record && ($record->status eq "" || $record->status < 1)) {
848 :     $record->status(1);
849 :     $record->attempted(1);
850 :     $db->putUserProblem($record);
851 :     }
852 :     }
853 : toenail 2834 }
854 : sh002i 3721
855 :     # Delete all problems marked for deletion
856 :     foreach my $problemID ($r->param('deleteProblem')) {
857 :     $db->deleteGlobalProblem($setID, $problemID);
858 :     }
859 :    
860 :     #####################################################################
861 :     # Add blank problem if needed
862 :     #####################################################################
863 :     if (defined($r->param("add_blank_problem") ) and $r->param("add_blank_problem") == 1) {
864 :     my $targetProblemNumber = 1+ WeBWorK::Utils::max( $self->r->db->listGlobalProblems($setID));
865 : gage 3790 ##################################################
866 :     # make local copy of the blankProblem
867 :     ##################################################
868 : sh002i 3721 my $blank_file_path = $ce->{webworkFiles}->{screenSnippets}->{blankProblem};
869 : gage 3790 my $problemContents = WeBWorK::Utils::readFile($blank_file_path);
870 :     my $new_file_path = "set$setID/".BLANKPROBLEM();
871 :     my $fullPath = WeBWorK::Utils::surePathToFile($ce->{courseDirs}->{templates},'/'.$new_file_path);
872 :     local(*TEMPFILE);
873 :     open(TEMPFILE, ">$fullPath") or warn "Can't write to file $fullPath";
874 :     print TEMPFILE $problemContents;
875 :     close(TEMPFILE);
876 :    
877 : sh002i 3721 #################################################
878 :     # Update problem record
879 :     #################################################
880 :     my $problemRecord = $self->addProblemToSet(
881 :     setName => $setID,
882 : gage 3790 sourceFile => $new_file_path,
883 : sh002i 3721 problemID => $targetProblemNumber, #added to end of set
884 :     );
885 : gage 3787 $self->assignProblemToAllSetUsers($problemRecord);
886 : gage 3790 $self->addgoodmessage("Added $new_file_path to ". $setID. " as problem $targetProblemNumber") ;
887 : sh002i 3721 }
888 :    
889 :     # Sets the specified header to "" so that the default file will get used.
890 :     foreach my $header ($r->param('defaultHeader')) {
891 :     $setRecord->$header("");
892 :     }
893 : toenail 2901 }
894 : toenail 2834
895 : toenail 2794 # Leftover code from when there were up/down buttons
896 :    
897 :     # } else {
898 :     # # Look for up and down buttons
899 :     # my $index = 2;
900 :     # while ($index <= scalar @problemList) {
901 :     # if (defined $r->param("move.up.$index.x")) {
902 :     # moveme($index-1, $db, $setID, @problemList);
903 :     # }
904 :     # $index++;
905 :     # }
906 :     # $index = 1;
907 :     #
908 :     # while ($index < scalar @problemList) {
909 :     # if (defined $r->param("move.down.$index.x")) {
910 :     # moveme($index, $db, $setID, @problemList);
911 :     # }
912 :     # $index++;
913 :     # }
914 : toenail 2834 # }
915 :    
916 : toenail 2794
917 : toenail 2901 # This erases any sticky fields if the user saves changes, resets the form, or reorders problems
918 :     # It may not be obvious why this is necessary when saving changes or reordering problems
919 :     # but when the problems are reorder the param problem.1.source_file needs to be the source
920 :     # file of the problem that is NOW #1 and not the problem that WAS #1.
921 :     unless (defined $r->param('refresh')) {
922 :    
923 :     # reset all the parameters dealing with set/problem/header information
924 :     # if the current naming scheme is changed/broken, this could reek havoc
925 :     # on all kinds of things
926 :     foreach my $param ($r->param) {
927 : toenail 3102 $r->param($param, "") if $param =~ /^(set|problem|header)\./ && $param !~ /displaymode/;
928 : toenail 2901 }
929 :     }
930 : toenail 2794 }
931 :    
932 :     # helper method for debugging
933 : toenail 2901 sub definedness ($) {
934 : toenail 2794 my ($variable) = @_;
935 :    
936 :     return "undefined" unless defined $variable;
937 :     return "empty" unless $variable ne "";
938 :     return $variable;
939 :     }
940 :    
941 :     # helper method for checking if two things are different
942 :     # the return values will usually be thrown away, but they could be useful for debugging
943 :     sub changed ($$) {
944 :     my ($first, $second) = @_;
945 :    
946 :     return "def/undef" if defined $first and not defined $second;
947 :     return "undef/def" if not defined $first and defined $second;
948 : toenail 2834 return "" if not defined $first and not defined $second;
949 : toenail 2794 return "ne" if $first ne $second;
950 : toenail 2834 return ""; # if they're equal, there's no change
951 : toenail 2794 }
952 :    
953 : toenail 2834 # helper method that determines for how many users at a time a field can be changed
954 : toenail 2794 # none means it can't be changed for anyone
955 :     # any means it can be changed for anyone
956 :     # one means it can ONLY be changed for one at a time. (eg problem_seed)
957 :     # all means it can ONLY be changed for all at a time. (eg set_header)
958 :     sub canChange ($$) {
959 :     my ($forUsers, $field) = @_;
960 :    
961 :     my %properties = %{ FIELD_PROPERTIES() };
962 :     my $forOneUser = $forUsers == 1;
963 :    
964 :     my $howManyCan = $properties{$field}->{override};
965 :    
966 :     return 0 if $howManyCan eq "none";
967 :     return 1 if $howManyCan eq "any";
968 :     return 1 if $howManyCan eq "one" && $forOneUser;
969 : toenail 2816 return 1 if $howManyCan eq "all" && !$forUsers;
970 : toenail 2794 return 0; # FIXME: maybe it should default to 1?
971 :     }
972 :    
973 : toenail 2834 # helper method that determines if a file is valid and returns a pretty error message
974 :     sub checkFile ($) {
975 :     my ($self, $file) = @_;
976 :    
977 :     my $r = $self->r;
978 :     my $ce = $r->ce;
979 :    
980 :     return "No source file specified" unless $file;
981 :     $file = $ce->{courseDirs}->{templates} . '/' . $file unless $file =~ m|^/|;
982 :    
983 :     my $text = "This source file ";
984 :     my $fileError;
985 :     return "" if -e $file && -f $file && -r $file;
986 :     return $text . "is not readable!" if -e $file && -f $file;
987 :     return $text . "is a directory!" if -d $file;
988 :     return $text . "does not exist!" unless -e $file;
989 :     return $text . "is not a plain file!";
990 :     }
991 :    
992 : sh002i 3476 # don't show view options -- we provide display mode controls for headers/problems separately
993 :     sub options {
994 :     return "";
995 :     }
996 :    
997 : toenail 2794 # Creates two separate tables, first of the headers, and the of the problems in a given set
998 :     # If one or more users are specified in the "editForUser" param, only the data for those users
999 :     # becomes editable, not all the data
1000 :     sub body {
1001 :    
1002 :     my ($self) = @_;
1003 :     my $r = $self->r;
1004 :     my $db = $r->db;
1005 :     my $ce = $r->ce;
1006 :     my $authz = $r->authz;
1007 :     my $userID = $r->param('user');
1008 :     my $urlpath = $r->urlpath;
1009 : toenail 2901 my $courseID = $urlpath->arg("courseID");
1010 :     my $setID = $urlpath->arg("setID");
1011 :     my $setRecord = $db->getGlobalSet($setID) or die "No record for global set $setID.";
1012 :    
1013 :     my $userRecord = $db->getUser($userID) or die "No record for user $userID.";
1014 :     # Check permissions
1015 :     return CGI::div({class=>"ResultsWithError"}, "You are not authorized to access the Instructor tools.")
1016 :     unless $authz->hasPermissions($userRecord->user_id, "access_instructor_tools");
1017 :    
1018 :     return CGI::div({class=>"ResultsWithError"}, "You are not authorized to modify problems.")
1019 :     unless $authz->hasPermissions($userRecord->user_id, "modify_problem_sets");
1020 :    
1021 : toenail 2794 my @editForUser = $r->param('editForUser');
1022 :    
1023 : toenail 2901 # Check that every user that we're editing for has a valid UserSet
1024 :     my @assignedUsers;
1025 :     my @unassignedUsers;
1026 :     if (scalar @editForUser) {
1027 :     foreach my $ID (@editForUser) {
1028 :     if ($db->getUserSet($ID, $setID)) {
1029 :     unshift @assignedUsers, $ID;
1030 :     } else {
1031 :     unshift @unassignedUsers, $ID;
1032 :     }
1033 :     }
1034 : gage 3790 @editForUser = sort @assignedUsers;
1035 : toenail 2901 $r->param("editForUser", \@editForUser);
1036 :    
1037 :     if (scalar @editForUser && scalar @unassignedUsers) {
1038 :     print CGI::div({class=>"ResultsWithError"}, "The following users are NOT assigned to this set and will be ignored: " . CGI::b(join(", ", @unassignedUsers)));
1039 :     } elsif (scalar @editForUser == 0) {
1040 :     print CGI::div({class=>"ResultsWithError"}, "None of the selected users are assigned to this set: " . CGI::b(join(", ", @unassignedUsers)));
1041 :     print CGI::div({class=>"ResultsWithError"}, "Global set data will be shown instead of user specific data");
1042 :     }
1043 :     }
1044 :    
1045 : toenail 2794 # some useful booleans
1046 :     my $forUsers = scalar(@editForUser);
1047 :     my $forOneUser = $forUsers == 1;
1048 :    
1049 : toenail 2901 # If you're editing for users, initially their records will be different but
1050 : toenail 2794 # if you make any changes to them they will be the same.
1051 :     # if you're editing for one user, the problems shown should be his/hers
1052 : toenail 2901 my $userToShow = $forUsers ? $editForUser[0] : $userID;
1053 : toenail 2794
1054 :     my $userCount = $db->listUsers();
1055 : gage 3790 my $setCount = $db->listGlobalSets(); # if $forOneUser;
1056 : toenail 2816 my $setUserCount = $db->countSetUsers($setID);
1057 : toenail 2807 my $userSetCount = $db->countUserSets($editForUser[0]) if $forOneUser;
1058 : toenail 2901
1059 :    
1060 : toenail 2794 my $editUsersAssignedToSetURL = $self->systemLink(
1061 :     $urlpath->newFromModule(
1062 :     "WeBWorK::ContentGenerator::Instructor::UsersAssignedToSet",
1063 : toenail 2816 courseID => $courseID, setID => $setID));
1064 : toenail 2807 my $editSetsAssignedToUserURL = $self->systemLink(
1065 :     $urlpath->newFromModule(
1066 : gage 3856 "WeBWorK::ContentGenerator::Instructor::UserDetail",
1067 : toenail 2816 courseID => $courseID, userID => $editForUser[0])) if $forOneUser;
1068 : toenail 2794
1069 : toenail 2807
1070 : toenail 2816 my $setDetailPage = $urlpath -> newFromModule($urlpath->module, courseID => $courseID, setID => $setID);
1071 : gage 3863 my $setDetailURL = $self->systemLink($setDetailPage, authen=>0);
1072 : toenail 2794
1073 :    
1074 : toenail 2807 my $userCountMessage = CGI::a({href=>$editUsersAssignedToSetURL}, $self->userCountMessage($setUserCount, $userCount));
1075 :     my $setCountMessage = CGI::a({href=>$editSetsAssignedToUserURL}, $self->setCountMessage($userSetCount, $setCount)) if $forOneUser;
1076 : toenail 2794
1077 : toenail 2816 $userCountMessage = "The set $setID is assigned to " . $userCountMessage . ".";
1078 : toenail 2807 $setCountMessage = "The user $editForUser[0] has been assigned " . $setCountMessage . "." if $forOneUser;
1079 : toenail 2794
1080 : toenail 2807 if ($forUsers) {
1081 : gage 3790 ##############################################
1082 :     # calculate links for the users being edited:
1083 :     ##############################################
1084 :     my @userLinks = ();
1085 :     foreach my $userID (@editForUser) {
1086 :     my $u = $db->getUser($userID);
1087 : apizer 4064 my $email_address = $u->email_address;
1088 :     my $line = $u->last_name.", ".$u->first_name."&nbsp;&nbsp;(".CGI::a({-href=>"mailto:$email_address"},"email "). $u->user_id."). Assigned to ";
1089 : gage 3790 my $editSetsAssignedToUserURL = $self->systemLink(
1090 :     $urlpath->newFromModule(
1091 : gage 3856 "WeBWorK::ContentGenerator::Instructor::UserDetail",
1092 : gage 3790 courseID => $courseID, userID => $u->user_id));
1093 :     $line .= CGI::a({href=>$editSetsAssignedToUserURL},
1094 :     $self->setCountMessage($db->countUserSets($u->user_id), $setCount));
1095 :     unshift @userLinks,$line;
1096 : toenail 2807 }
1097 : gage 3790 @userLinks = sort @userLinks;
1098 :    
1099 :     print CGI::table({border=>2,cellpadding=>10},
1100 :     CGI::Tr(
1101 :     CGI::td([
1102 :     "Editing problem set ".CGI::strong($setID)." data for these individual students:".CGI::br().
1103 :     CGI::strong(join CGI::br(), @userLinks),
1104 : gage 3863 CGI::a({href=>$self->systemLink($setDetailPage) },"Edit set ".CGI::strong($setID)." data for ALL students assigned to this set."),
1105 : gage 3790
1106 :     ])
1107 :     )
1108 :     );
1109 : toenail 2794 } else {
1110 : gage 3790 print CGI::table({border=>2,cellpadding=>10},
1111 :     CGI::Tr(
1112 :     CGI::td([
1113 :     "This set ".CGI::strong($setID)." is assigned to ".$self->userCountMessage($setUserCount, $userCount).'.' ,
1114 :     'Edit '.CGI::a({href=>$editUsersAssignedToSetURL},'individual versions '). "of set $setID.",
1115 :    
1116 :     ])
1117 :     )
1118 :     );
1119 : toenail 2794 }
1120 :    
1121 : toenail 2901 # handle renumbering of problems if necessary
1122 :     print CGI::a({name=>"problems"});
1123 : toenail 2794
1124 : toenail 2901 my %newProblemNumbers = ();
1125 :     my $maxProblemNumber = -1;
1126 :     for my $jj (sort { $a <=> $b } $db->listGlobalProblems($setID)) {
1127 :     $newProblemNumbers{$jj} = $r->param('problem_num_' . $jj);
1128 :     $maxProblemNumber = $jj if $jj > $maxProblemNumber;
1129 :     }
1130 :    
1131 :     my $forceRenumber = $r->param('force_renumber') || 0;
1132 :     handle_problem_numbers(\%newProblemNumbers, $maxProblemNumber, $db, $setID, $forceRenumber) unless defined $r->param('undo_changes');
1133 :    
1134 : toenail 2794 my %properties = %{ FIELD_PROPERTIES() };
1135 :    
1136 :     my %display_modes = %{WeBWorK::PG::DISPLAY_MODES()};
1137 :     my @active_modes = grep { exists $display_modes{$_} } @{$r->ce->{pg}->{displayModes}};
1138 :     push @active_modes, 'None';
1139 :     my $default_header_mode = $r->param('header.displaymode') || 'None';
1140 :     my $default_problem_mode = $r->param('problem.displaymode') || 'None';
1141 :    
1142 : toenail 2816 #####################################################################
1143 :     # Browse available header/problem files
1144 :     #####################################################################
1145 :    
1146 :     my $templates = $r->ce->{courseDirs}->{templates};
1147 :     my %probLibs = %{ $r->ce->{courseFiles}->{problibs} };
1148 :     my $skip = join("|", keys %probLibs);
1149 : toenail 2794
1150 : toenail 2816 my @headerFileList = listFilesRecursive(
1151 :     $templates,
1152 :     qr/header.*\.pg$/i, # match these files
1153 :     qr/^(?:$skip|CVS)$/, # prune these directories
1154 :     0, # match against file name only
1155 :     1, # prune against path relative to $templates
1156 :     );
1157 :    
1158 :     # this just takes too much time to search
1159 :     # my @problemFileList = listFilesRecursive(
1160 :     # $templates,
1161 :     # qr/\.pg$/i, # problem files don't say problem
1162 :     # qr/^(?:$skip|CVS)$/, # prune these directories
1163 :     # 0, # match against file name only
1164 :     # 1, # prune against path relative to $templates
1165 :     # );
1166 :    
1167 : toenail 2794 # Display a useful warning message
1168 :     if ($forUsers) {
1169 :     print CGI::p(CGI::b("Any changes made below will be reflected in the set for ONLY the student" .
1170 :     ($forOneUser ? "" : "s") . " listed above."));
1171 :     } else {
1172 :     print CGI::p(CGI::b("Any changes made below will be reflected in the set for ALL students."));
1173 :     }
1174 :    
1175 :     print CGI::start_form({method=>"POST", action=>$setDetailURL});
1176 : toenail 2834 print $self->hiddenEditForUserFields(@editForUser);
1177 :     print $self->hidden_authen_fields;
1178 : toenail 2794 print CGI::input({type=>"submit", name=>"submit_changes", value=>"Save Changes"});
1179 : toenail 2834 print CGI::input({type=>"submit", name=>"undo_changes", value => "Reset Form"});
1180 :    
1181 : toenail 2794 # spacing
1182 :     print CGI::p();
1183 :    
1184 :     #####################################################################
1185 :     # Display general set information
1186 :     #####################################################################
1187 :    
1188 :     print CGI::start_table({border=>1, cellpadding=>4});
1189 :     print CGI::Tr({}, CGI::th({}, [
1190 :     "General Information",
1191 :     ]));
1192 : sh002i 2913
1193 :     # this is kind of a hack -- we need to get a user record here, so we can
1194 :     # pass it to FieldTable, so FieldTable can pass it to FieldHTML, so
1195 :     # FieldHTML doesn't have to fetch it itself.
1196 :     my $userSetRecord = $db->getUserSet($userToShow, $setID);
1197 :    
1198 : toenail 2794 print CGI::Tr({}, CGI::td({}, [
1199 : sh002i 2913 $self->FieldTable($userToShow, $setID, undef, $setRecord, $userSetRecord),
1200 : toenail 2794 ]));
1201 :     print CGI::end_table();
1202 :    
1203 :     # spacing
1204 :     print CGI::p();
1205 :    
1206 :    
1207 :     #####################################################################
1208 :     # Display header information
1209 :     #####################################################################
1210 :     my @headers = @{ HEADER_ORDER() };
1211 : toenail 2834 my %headerModules = (set_header => 'problem_list', hardcopy_header => 'hardcopy_preselect_set');
1212 :     my %headerDefaults = (set_header => $ce->{webworkFiles}->{screenSnippets}->{setHeader}, hardcopy_header => $ce->{webworkFiles}->{hardcopySnippets}->{setHeader});
1213 : toenail 2794 my @headerFiles = map { $setRecord->{$_} } @headers;
1214 :     if (scalar @headers and not $forUsers) {
1215 :    
1216 :     print CGI::start_table({border=>1, cellpadding=>4});
1217 :     print CGI::Tr({}, CGI::th({}, [
1218 :     "Headers",
1219 :     # "Data",
1220 :     "Display&nbsp;Mode:&nbsp;" .
1221 :     CGI::popup_menu(-name => "header.displaymode", -values => \@active_modes, -default => $default_header_mode) . '&nbsp;'.
1222 : gage 2904 CGI::input({type => "submit", name => "refresh", value => "Refresh Display"}),
1223 : toenail 2794 ]));
1224 :    
1225 :     my %header_html;
1226 :    
1227 : toenail 2834 my %error;
1228 : toenail 2794 foreach my $header (@headers) {
1229 : toenail 2834 my $headerFile = $r->param("set.$setID.$header") || $setRecord->{$header} || $headerDefaults{$header};
1230 :    
1231 :     $error{$header} = $self->checkFile($headerFile);
1232 :     unless ($error{$header}) {
1233 :     my @temp = renderProblems( r=> $r,
1234 :     user => $db->getUser($userToShow),
1235 :     displayMode=> $default_header_mode,
1236 :     problem_number=> 0,
1237 :     this_set => $db->getMergedSet($userToShow, $setID),
1238 :     problem_list => [$headerFile],
1239 :     );
1240 :     $header_html{$header} = $temp[0];
1241 :     }
1242 : toenail 2794 }
1243 :    
1244 :     foreach my $header (@headers) {
1245 :    
1246 : toenail 2816 my $editHeaderPage = $urlpath->new(type => 'instructor_problem_editor_withset_withproblem', args => { courseID => $courseID, setID => $setID, problemID => 0 });
1247 : toenail 2794 my $editHeaderLink = $self->systemLink($editHeaderPage, params => { file_type => $header, make_local_copy => 1 });
1248 :    
1249 : toenail 2816 my $viewHeaderPage = $urlpath->new(type => $headerModules{$header}, args => { courseID => $courseID, setID => $setID });
1250 : toenail 2794 my $viewHeaderLink = $self->systemLink($viewHeaderPage);
1251 :    
1252 :     print CGI::Tr({}, CGI::td({}, [
1253 :     CGI::start_table({border => 0, cellpadding => 0}) .
1254 :     CGI::Tr({}, CGI::td({}, $properties{$header}->{name})) .
1255 : dpvc 3901 CGI::Tr({}, CGI::td({}, CGI::a({href => $editHeaderLink, target=>"WW_Editor"}, "Edit it"))) .
1256 :     CGI::Tr({}, CGI::td({}, CGI::a({href => $viewHeaderLink, target=>"WW_View"}, "View it"))) .
1257 : toenail 2834 # CGI::Tr({}, CGI::td({}, CGI::checkbox({name => "defaultHeader", value => $header, label => "Use Default"}))) .
1258 : toenail 2794 CGI::end_table(),
1259 :     # "",
1260 : toenail 2816 # CGI::input({ name => "set.$setID.$header", value => $setRecord->{$header}, size => 50}) .
1261 :     # join ("\n", $self->FieldHTML($userToShow, $setID, $problemID, "source_file")) .
1262 :     # CGI::br() . CGI::div({class=> "RenderSolo"}, $problem_html[0]->{body_text}),
1263 :    
1264 :     comboBox({
1265 :     name => "set.$setID.$header",
1266 :     request => $r,
1267 : toenail 2834 default => $r->param("set.$setID.$header") || $setRecord->{$header},
1268 : toenail 2816 multiple => 0,
1269 :     values => ["", @headerFileList],
1270 :     labels => { "" => "Use Default Header File" },
1271 :     }) .
1272 : toenail 2834 ($error{$header} ?
1273 :     CGI::div({class=>"ResultsWithError", style=>"font-weight: bold"}, $error{$header})
1274 :     : CGI::div({class=> "RenderSolo"}, $header_html{$header}->{body_text})
1275 :     ),
1276 : toenail 2794 ]));
1277 :     }
1278 :    
1279 :     print CGI::end_table();
1280 :     } else {
1281 :     print CGI::p(CGI::b("Screen and Hardcopy set header information can not be overridden for individual students."));
1282 :     }
1283 :    
1284 :     # spacing
1285 :     print CGI::p();
1286 :    
1287 :    
1288 :     #####################################################################
1289 :     # Display problem information
1290 :     #####################################################################
1291 :    
1292 : toenail 2901 my @problemIDList = sort { $a <=> $b } $db->listGlobalProblems($setID);
1293 : sh002i 2913
1294 :     # get global problem records for all problems in one go
1295 :     my %GlobalProblems;
1296 :     my @globalKeypartsRef = map { [$setID, $_] } @problemIDList;
1297 :     @GlobalProblems{@problemIDList} = $db->getGlobalProblems(@globalKeypartsRef);
1298 :    
1299 :     # if needed, get user problem records for all problems in one go
1300 :     my (%UserProblems, %MergedProblems);
1301 :     if ($forOneUser) {
1302 :     my @userKeypartsRef = map { [$editForUser[0], $setID, $_] } @problemIDList;
1303 :     @UserProblems{@problemIDList} = $db->getUserProblems(@userKeypartsRef);
1304 :     @MergedProblems{@problemIDList} = $db->getMergedProblems(@userKeypartsRef);
1305 :     }
1306 :    
1307 : toenail 2816 if (scalar @problemIDList) {
1308 : toenail 2794
1309 :     print CGI::start_table({border=>1, cellpadding=>4});
1310 :     print CGI::Tr({}, CGI::th({}, [
1311 :     "Problems",
1312 :     "Data",
1313 :     "Display&nbsp;Mode:&nbsp;" .
1314 :     CGI::popup_menu(-name => "problem.displaymode", -values => \@active_modes, -default => $default_problem_mode) . '&nbsp;'.
1315 : gage 2904 CGI::input({type => "submit", name => "refresh", value => "Refresh Display"}),
1316 : toenail 2794 ]));
1317 :    
1318 : toenail 2834 my %shownYet;
1319 :     my $repeatFile;
1320 : toenail 2816 foreach my $problemID (@problemIDList) {
1321 : toenail 2794
1322 :     my $problemRecord;
1323 :     if ($forOneUser) {
1324 : sh002i 2913 #$problemRecord = $db->getMergedProblem($editForUser[0], $setID, $problemID);
1325 :     $problemRecord = $MergedProblems{$problemID}; # already fetched above --sam
1326 : toenail 2794 } else {
1327 : sh002i 2913 #$problemRecord = $db->getGlobalProblem($setID, $problemID);
1328 :     $problemRecord = $GlobalProblems{$problemID}; # already fetched above --sam
1329 : toenail 2794 }
1330 :    
1331 : sh002i 2913 #$self->addgoodmessage("");
1332 :     #$self->addbadmessage($problemRecord->toString());
1333 :    
1334 :    
1335 : toenail 2816 my $editProblemPage = $urlpath->new(type => 'instructor_problem_editor_withset_withproblem', args => { courseID => $courseID, setID => $setID, problemID => $problemID });
1336 :     my $editProblemLink = $self->systemLink($editProblemPage, params => { make_local_copy => 0 });
1337 : gage 3036
1338 :    
1339 : toenail 2794 # FIXME: should we have an "act as" type link here when editing for multiple users?
1340 : toenail 2841 my $viewProblemPage = $urlpath->new(type => 'problem_detail', args => { courseID => $courseID, setID => $setID, problemID => $problemID });
1341 : toenail 2794 my $viewProblemLink = $self->systemLink($viewProblemPage, params => { effectiveUser => ($forOneUser ? $editForUser[0] : $userID)});
1342 :    
1343 :     my @fields = @{ PROBLEM_FIELDS() };
1344 :     push @fields, @{ USER_PROBLEM_FIELDS() } if $forOneUser;
1345 :    
1346 : toenail 2834 my $problemFile = $r->param("problem.$problemID.source_file") || $problemRecord->source_file;
1347 :    
1348 :     # warn of repeat problems
1349 :     if (defined $shownYet{$problemFile}) {
1350 :     $repeatFile = "This problem uses the same source file as number " . $shownYet{$problemFile} . ".";
1351 :     } else {
1352 :     $shownYet{$problemFile} = $problemID;
1353 : toenail 2966 $repeatFile = "";
1354 : toenail 2834 }
1355 :    
1356 :     my $error = $self->checkFile($problemFile);
1357 :     my @problem_html;
1358 :     unless ($error) {
1359 :     @problem_html = renderProblems( r=> $r,
1360 : toenail 2794 user => $db->getUser($userToShow),
1361 :     displayMode=> $default_problem_mode,
1362 : toenail 2816 problem_number=> $problemID,
1363 :     this_set => $db->getMergedSet($userToShow, $setID),
1364 : toenail 2794 problem_seed => $forOneUser ? $problemRecord->problem_seed : 0,
1365 :     problem_list => [$problemRecord->source_file],
1366 : toenail 2834 );
1367 :     }
1368 : toenail 2794
1369 :     print CGI::Tr({}, CGI::td({}, [
1370 :     CGI::start_table({border => 0, cellpadding => 1}) .
1371 : toenail 2816 CGI::Tr({}, CGI::td({}, problem_number_popup($problemID, $maxProblemNumber))) .
1372 : dpvc 3901 CGI::Tr({}, CGI::td({}, CGI::a({href => $editProblemLink, target=>"WW_Editor"}, "Edit it"))) .
1373 :     CGI::Tr({}, CGI::td({}, CGI::a({href => $viewProblemLink, target=>"WW_View"}, "Try it" . ($forOneUser ? " (as $editForUser[0])" : "")))) .
1374 : toenail 2816 ($forUsers ? "" : CGI::Tr({}, CGI::td({}, CGI::checkbox({name => "deleteProblem", value => $problemID, label => "Delete it?"})))) .
1375 :     # CGI::Tr({}, CGI::td({}, "Delete&nbsp;it?" . CGI::input({type => "checkbox", name => "deleteProblem", value => $problemID}))) .
1376 : toenail 2901 ($forOneUser ? "" : CGI::Tr({}, CGI::td({}, CGI::checkbox({name => "markCorrect", value => $problemID, label => "Mark Correct?"})))) .
1377 : toenail 2794 CGI::end_table(),
1378 : sh002i 2913 $self->FieldTable($userToShow, $setID, $problemID, $GlobalProblems{$problemID}, $UserProblems{$problemID}),
1379 : toenail 2816 # A comprehensive list of problems is just TOO big to be handled well
1380 :     # comboBox({
1381 :     # name => "set.$setID.$problemID",
1382 :     # request => $r,
1383 :     # default => $problemRecord->{problem_id},
1384 :     # multiple => 0,
1385 :     # values => \@problemFileList,
1386 :     # }) .
1387 :    
1388 : sh002i 2913 join ("\n", $self->FieldHTML(
1389 :     $userToShow,
1390 :     $setID,
1391 :     $problemID,
1392 :     $GlobalProblems{$problemID}, # pass previously fetched global record to FieldHTML --sam
1393 :     $UserProblems{$problemID}, # pass previously fetched user record to FieldHTML --sam
1394 :     "source_file"
1395 :     )) .
1396 : toenail 2834 CGI::br() .
1397 :     ($error ?
1398 :     CGI::div({class=>"ResultsWithError", style=>"font-weight: bold"}, $error)
1399 :     : CGI::div({class=> "RenderSolo"}, $problem_html[0]->{body_text})
1400 :     ) .
1401 :     ($repeatFile ? CGI::div({class=>"ResultsWithError", style=>"font-weight: bold"}, $repeatFile) : ''),
1402 : toenail 2794 ]));
1403 :     }
1404 :    
1405 : gage 3036
1406 :     # print final lines
1407 : toenail 2794 print CGI::end_table();
1408 :     print CGI::checkbox({
1409 : sh002i 3803 label=> "Force problems to be numbered consecutively from one (always done when reordering problems)",
1410 : toenail 2794 name=>"force_renumber", value=>"1"}),
1411 : gage 3719 CGI::br(),
1412 :     CGI::checkbox({
1413 :     label=> "Add blank problem to set",
1414 :     name=>"add_blank_problem", value=>"1"}),
1415 : toenail 2794
1416 : gage 3719 CGI::br();
1417 : toenail 2794 print CGI::input({type=>"submit", name=>"submit_changes", value=>"Save Changes"});
1418 : toenail 2901 print CGI::input({type=>"submit", name=>"handle_numbers", value=>"Reorder problems only"}) . "(Any unsaved changes will be lost.)";
1419 : gage 3790 print CGI::p(<<EOF);
1420 : toenail 2794 Any time problem numbers are intentionally changed, the problems will
1421 :     always be renumbered consecutively, starting from one. When deleting
1422 :     problems, gaps will be left in the numbering unless the box above is
1423 :     checked.
1424 : gage 3790 EOF
1425 :     print CGI::p("It is before the open date. You probably want to renumber the problems if you are deleting some from the middle.") if ($setRecord->open_date>time());
1426 :     print CGI::p("When changing problem numbers, we will move the problem to be ", CGI::em("before"), " the chosen number.");
1427 : toenail 2794
1428 :     } else {
1429 :     print CGI::p(CGI::b("This set doesn't contain any problems yet."));
1430 :     }
1431 : gage 3175 # always allow one to add a new problem.
1432 :     my $editNewProblemPage = $urlpath->new(type => 'instructor_problem_editor_withset_withproblem', args => { courseID => $courseID, setID => $setID, problemID =>'new_problem' });
1433 :     my $editNewProblemLink = $self->systemLink($editNewProblemPage, params => { make_local_copy => 1, file_type => 'blank_problem' });
1434 : toenail 2794
1435 : gage 3811 # This next feature isn't fully supported and is causing problems. Remove for now. #FIXME
1436 :     #print CGI::p( CGI::a({href=>$editNewProblemLink},'Edit'). ' a new blank problem');
1437 : gage 3175
1438 : toenail 2794 print CGI::end_form();
1439 :    
1440 :     return "";
1441 :     }
1442 :    
1443 :     1;
1444 :    
1445 :     =head1 AUTHOR
1446 :    
1447 :     Written by Robert Van Dam, toenail (at) cif.rochester.edu
1448 :    
1449 :     =cut

aubreyja at gmail dot com
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