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1 :	david gage	6487	################################################################################
2 :			# WeBWorK Online Homework Delivery System
3 :			# Copyright © 2000-2007 The WeBWorK Project, http://openwebwork.sf.net/
4 :			# $CVSHeader: webwork2/lib/WeBWorK/ContentGenerator/Instructor/SetMaker.pm,v 1.85 2008/07/01 13:18:52 glarose Exp $
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 :
18 :			package WeBWorK::ContentGenerator::Instructor::SetMaker2;
19 :			use base qw(WeBWorK::ContentGenerator::Instructor);
20 :
21 :			=head1 NAME
22 :
23 :			WeBWorK::ContentGenerator::Instructor::SetMaker2 - Make homework sets.
24 :
25 :			=cut
26 :
27 :			use strict;
28 :			use warnings;
29 :
30 :
31 :			#use CGI qw(-nosticky);
32 :			use WeBWorK::CGI;
33 :			use WeBWorK::Debug;
34 :			use WeBWorK::Form;
35 :			use WeBWorK::Utils qw(readDirectory max sortByName);
36 :			use WeBWorK::Utils::Tasks qw(renderProblems);
37 :			use File::Find;
38 :
39 :			require WeBWorK::Utils::ListingDB;
40 :
41 :			use constant SHOW_HINTS_DEFAULT => 0;
42 :			use constant SHOW_SOLUTIONS_DEFAULT => 0;
43 :			use constant MAX_SHOW_DEFAULT => 20;
44 :			use constant NO_LOCAL_SET_STRING => 'No sets in this course yet';
45 :			use constant SELECT_SET_STRING => 'Select a Set from this Course';
46 :			use constant SELECT_LOCAL_STRING => 'Select a Problem Collection';
47 :			use constant MY_PROBLEMS => ' My Problems ';
48 :			use constant MAIN_PROBLEMS => ' Unclassified Problems ';
49 :			use constant CREATE_SET_BUTTON => 'Create New Set';
50 :			use constant ALL_CHAPTERS => 'All Chapters';
51 :			use constant ALL_SUBJECTS => 'All Subjects';
52 :			use constant ALL_SECTIONS => 'All Sections';
53 :			use constant ALL_TEXTBOOKS => 'All Textbooks';
54 :
55 :			use constant LIB2_DATA => {
56 :			'dbchapter' => {name => 'library_chapters', all => 'All Chapters'},
57 :			'dbsection' => {name => 'library_sections', all =>'All Sections' },
58 :			'dbsubject' => {name => 'library_subjects', all => 'All Subjects' },
59 :			'textbook' => {name => 'library_textbook', all => 'All Textbooks'},
60 :			'textchapter' => {name => 'library_textchapter', all => 'All Chapters'},
61 :			'textsection' => {name => 'library_textsection', all => 'All Sections'},
62 :			'keywords' => {name => 'library_keywords', all => '' },
63 :			};
64 :
65 :			## Flags for operations on files
66 :
67 :			use constant ADDED => 1;
68 :			use constant HIDDEN => (1 << 1);
69 :			use constant SUCCESS => (1 << 2);
70 :	david gage	6492	use constant DELETED => (1 << 3);
71 :	david gage	6487
72 :			## for additional problib buttons
73 :			my %problib; ## filled in in global.conf
74 :			my %ignoredir = (
75 :			'.' => 1, '..' => 1, 'Library' => 1, 'CVS' => 1, 'tmpEdit' => 1,
76 :			'headers' => 1, 'macros' => 1, 'email' => 1, '.svn' => 1,
77 :			);
78 :
79 :			sub prepare_activity_entry {
80 :			my $self=shift;
81 :			my $r = $self->r;
82 :			my $user = $self->r->param('user') \|\| 'NO_USER';
83 :			return("In SetMaker as user $user");
84 :			}
85 :
86 :			## This is for searching the disk for directories containing pg files.
87 :			## to make the recursion work, this returns an array where the first
88 :			## item is the number of pg files in the directory. The second is a
89 :			## list of directories which contain pg files.
90 :			##
91 :			## If a directory contains only one pg file and the directory name
92 :			## is the same as the file name, then the directory is considered
93 :			## to be part of the parent directory (it is probably in a separate
94 :			## directory only because it has auxiliary files that want to be
95 :			## kept together with the pg file).
96 :			##
97 :			## If a directory has a file named "=library-ignore", it is never
98 :			## included in the directory menu. If a directory contains a file
99 :			## called "=library-combine-up", then its pg are included with those
100 :			## in the parent directory (and the directory does not appear in the
101 :			## menu). If it has a file called "=library-no-combine" then it is
102 :			## always listed as a separate directory even if it contains only one
103 :			## pg file.
104 :
105 :			sub get_library_sets {
106 :			my $top = shift; my $dir = shift;
107 :			# ignore directories that give us an error
108 :			my @lis = eval { readDirectory($dir) };
109 :			if ($@) {
110 :			warn $@;
111 :			return (0);
112 :			}
113 :			return (0) if grep /^=library-ignore$/, @lis;
114 :
115 :			my @pgfiles = grep { m/\.pg$/ and (not m/(Header\|-text)\.pg$/) and -f "$dir/$_"} @lis;
116 :			my $pgcount = scalar(@pgfiles);
117 :			my $pgname = $dir; $pgname =~ s!.*/!!; $pgname .= '.pg';
118 :			my $combineUp = ($pgcount == 1 && $pgname eq $pgfiles[0] && !(grep /^=library-no-combine$/, @lis));
119 :
120 :			my @pgdirs;
121 :			my @dirs = grep {!$ignoredir{$_} and -d "$dir/$_"} @lis;
122 :			if ($top == 1) {@dirs = grep {!$problib{$_}} @dirs}
123 :			foreach my $subdir (@dirs) {
124 :			my @results = get_library_sets(0, "$dir/$subdir");
125 :			$pgcount += shift @results; push(@pgdirs,@results);
126 :			}
127 :
128 :			return ($pgcount, @pgdirs) if $top \|\| $combineUp \|\| grep /^=library-combine-up$/, @lis;
129 :			return (0,@pgdirs,$dir);
130 :			}
131 :
132 :			sub get_library_pgs {
133 :			my $top = shift; my $base = shift; my $dir = shift;
134 :			my @lis = readDirectory("$base/$dir");
135 :			return () if grep /^=library-ignore$/, @lis;
136 :			return () if !$top && grep /^=library-no-combine$/, @lis;
137 :
138 :			my @pgs = grep { m/\.pg$/ and (not m/(Header\|-text)\.pg$/) and -f "$base/$dir/$_"} @lis;
139 :			my $others = scalar(grep { (!m/\.pg$/ \|\| m/(Header\|-text)\.pg$/) &&
140 :			!m/(\.(tmp\|bak)\|~)$/ && -f "$base/$dir/$_" } @lis);
141 :
142 :			my @dirs = grep {!$ignoredir{$_} and -d "$base/$dir/$_"} @lis;
143 :			if ($top == 1) {@dirs = grep {!$problib{$_}} @dirs}
144 :			foreach my $subdir (@dirs) {push(@pgs, get_library_pgs(0,"$base/$dir",$subdir))}
145 :
146 :			return () unless $top \|\| (scalar(@pgs) == 1 && $others) \|\| grep /^=library-combine-up$/, @lis;
147 :			return (map {"$dir/$_"} @pgs);
148 :			}
149 :
150 :			sub list_pg_files {
151 :			my ($templates,$dir) = @_;
152 :			my $top = ($dir eq '.')? 1 : 2;
153 :			my @pgs = get_library_pgs($top,$templates,$dir);
154 :			return sortByName(undef,@pgs);
155 :			}
156 :
157 :			## Search for set definition files
158 :
159 :			sub get_set_defs {
160 :			my $topdir = shift;
161 :			my @found_set_defs;
162 :			# get_set_defs_wanted is a closure over @found_set_defs
163 :			my $get_set_defs_wanted = sub {
164 :			#my $fn = $_;
165 :			#my $fdir = $File::Find::dir;
166 :			#return() if($fn !~ /^set.*\.def$/);
167 :			##return() if(not -T $fn);
168 :			#push @found_set_defs, "$fdir/$fn";
169 :			push @found_set_defs, $_ if m\|/set[^/]*\.def$\|;
170 :			};
171 :			find({ wanted => $get_set_defs_wanted, follow_fast=>1, no_chdir=>1}, $topdir);
172 :			map { $_ =~ s\|^$topdir/?\|\| } @found_set_defs;
173 :			return @found_set_defs;
174 :			}
175 :
176 :			## Try to make reading of set defs more flexible. Additional strategies
177 :			## for fixing a path can be added here.
178 :
179 :			sub munge_pg_file_path {
180 :			my $self = shift;
181 :			my $pg_path = shift;
182 :			my $path_to_set_def = shift;
183 :			my $end_path = $pg_path;
184 :			# if the path is ok, don't fix it
185 :			return($pg_path) if(-e $self->r->ce->{courseDirs}{templates}."/$pg_path");
186 :			# if we have followed a link into a self contained course to get
187 :			# to the set.def file, we need to insert the start of the path to
188 :			# the set.def file
189 :			$end_path = "$path_to_set_def/$pg_path";
190 :			return($end_path) if(-e $self->r->ce->{courseDirs}{templates}."/$end_path");
191 :			# if we got this far, this path is bad, but we let it produce
192 :			# an error so the user knows there is a troublesome path in the
193 :			# set.def file.
194 :			return($pg_path);
195 :			}
196 :
197 :			## Read a set definition file. This could be abstracted since it happens
198 :			## elsewhere. Here we don't have to process so much of the file.
199 :
200 :			sub read_set_def {
201 :			my $self = shift;
202 :			my $r = $self->r;
203 :			my $filePathOrig = shift;
204 :			my $filePath = $r->ce->{courseDirs}{templates}."/$filePathOrig";
205 :			$filePathOrig =~ s/set.*\.def$//;
206 :			$filePathOrig =~ s\|/$\|\|;
207 :			$filePathOrig = "." if ($filePathOrig !~ /\S/);
208 :			my @pg_files = ();
209 :			my ($line, $got_to_pgs, $name, @rest) = ("", 0, "");
210 :			if ( open (SETFILENAME, "$filePath") ) {
211 :			while($line = <SETFILENAME>) {
212 :			chomp($line);
213 :			$line =~ s\|(#.*)\|\|; # don't read past comments
214 :			if($got_to_pgs) {
215 :			unless ($line =~ /\S/) {next;} # skip blank lines
216 :			($name,@rest) = split (/\s,\s/,$line);
217 :			$name =~ s/\s*//g;
218 :			push @pg_files, $name;
219 :			} else {
220 :			$got_to_pgs = 1 if ($line =~ /problemList\s*=/);
221 :			}
222 :			}
223 :			} else {
224 :			$self->addbadmessage("Cannot open $filePath");
225 :			}
226 :			# This is where we would potentially munge the pg file paths
227 :			# One possibility
228 :			@pg_files = map { $self->munge_pg_file_path($_, $filePathOrig) } @pg_files;
229 :			return(@pg_files);
230 :			}
231 :
232 :			## go through past page getting a list of identifiers for the problems
233 :			## and whether or not they are selected, and whether or not they should
234 :			## be hidden
235 :
236 :			sub get_past_problem_files {
237 :			my $r = shift;
238 :			my @found=();
239 :			my $count =1;
240 :			while (defined($r->param("filetrial$count"))) {
241 :			my $val = 0;
242 :			$val \|= ADDED if($r->param("trial$count"));
243 :	david gage	6492	$val \|= DELETED if($r->param("deleted$count"));
244 :	david gage	6487	$val \|= HIDDEN if($r->param("hideme$count"));
245 :			push @found, [$r->param("filetrial$count"), $val];
246 :			$count++;
247 :			}
248 :			return(\@found);
249 :			}
250 :
251 :			#### For adding new problems
252 :
253 :			sub add_selected {
254 :			my $self = shift;
255 :			my $db = shift;
256 :			my $setName = shift;
257 :			my @past_problems = @{$self->{past_problems}};
258 :			my @selected = @past_problems;
259 :			my (@path, $file, $selected, $freeProblemID);
260 :			# DBFIXME count would work just as well
261 :			$freeProblemID = max($db->listGlobalProblems($setName)) + 1;
262 :			my $addedcount=0;
263 :
264 :			for $selected (@selected) {
265 :			if($selected->[1] & ADDED) {
266 :			$file = $selected->[0];
267 :			my $problemRecord = $self->addProblemToSet(setName => $setName,
268 :			sourceFile => $file, problemID => $freeProblemID);
269 :			$freeProblemID++;
270 :			$self->assignProblemToAllSetUsers($problemRecord);
271 :			$selected->[1] \|= SUCCESS;
272 :			$addedcount++;
273 :			}
274 :	david gage	6492	if($selected->[1] & DELETED) {
275 :			foreach my $problem ($db->listGlobalProblems($setName)) {
276 :			my $problemRecord = $db->getGlobalProblem($setName, $problem);
277 :			if($problemRecord->source_file eq $selected->[0]){
278 :			$db->deleteGlobalProblem($setName, $problemRecord->problem_id);
279 :			}
280 :			}
281 :			print "it worked!";
282 :			$selected->[1] \|= SUCCESS;
283 :			$addedcount++;
284 :			}
285 :	david gage	6487	}
286 :			return($addedcount);
287 :			}
288 :
289 :
290 :			############# List of sets of problems in templates directory
291 :
292 :			sub get_problem_directories {
293 :			my $ce = shift;
294 :			my $lib = shift;
295 :			my $source = $ce->{courseDirs}{templates};
296 :			my $main = MY_PROBLEMS; my $isTop = 1;
297 :			if ($lib) {$source .= "/$lib"; $main = MAIN_PROBLEMS; $isTop = 2}
298 :			my @all_problem_directories = get_library_sets($isTop, $source);
299 :			my $includetop = shift @all_problem_directories;
300 :			my $j;
301 :			for ($j=0; $j<scalar(@all_problem_directories); $j++) {
302 :			$all_problem_directories[$j] =~ s\|^$ce->{courseDirs}->{templates}/?\|\|;
303 :			}
304 :			@all_problem_directories = sortByName(undef, @all_problem_directories);
305 :			unshift @all_problem_directories, $main if($includetop);
306 :			return (\@all_problem_directories);
307 :			}
308 :
309 :			############# Everyone has a view problems line. Abstract it
310 :			sub view_problems_line {
311 :			my $internal_name = shift;
312 :			my $label = shift;
313 :			my $r = shift; # so we can get parameter values
314 :			my $result = CGI::submit(-name=>"$internal_name", -value=>$label);
315 :
316 :			my %display_modes = %{WeBWorK::PG::DISPLAY_MODES()};
317 :			my @active_modes = grep { exists $display_modes{$_} }
318 :			@{$r->ce->{pg}->{displayModes}};
319 :			push @active_modes, 'None';
320 :			# We have our own displayMode since its value may be None, which is illegal
321 :			# in other modules.
322 :			my $mydisplayMode = $r->param('mydisplayMode') \|\| $r->ce->{pg}->{options}->{displayMode};
323 :			$result .= ' Display Mode: '.CGI::popup_menu(-name=> 'mydisplayMode',
324 :			-values=>\@active_modes,
325 :			-default=> $mydisplayMode);
326 :			# Now we give a choice of the number of problems to show
327 :			my $defaultMax = $r->param('max_shown') \|\| MAX_SHOW_DEFAULT;
328 :			$result .= ' Max. Shown:&nbsp'.
329 :			CGI::popup_menu(-name=> 'max_shown',
330 :			-values=>[5,10,15,20,25,30,50,'All'],
331 :			-default=> $defaultMax);
332 :			# Option of whether to show hints and solutions
333 :			my $defaultHints = $r->param('showHints') \|\| SHOW_HINTS_DEFAULT;
334 :			$result .= " ".CGI::checkbox(-name=>"showHints",-checked=>$defaultHints,-label=>"Hints");
335 :			my $defaultSolutions = $r->param('showSolutions') \|\| SHOW_SOLUTIONS_DEFAULT;
336 :			$result .= " ".CGI::checkbox(-name=>"showSolutions",-checked=>$defaultSolutions,-label=>"Solutions");
337 :
338 :			return($result);
339 :			}
340 :
341 :
342 :			### The browsing panel has three versions
343 :			##### Version 1 is local problems
344 :			sub browse_local_panel {
345 :			my $self = shift;
346 :			my $library_selected = shift;
347 :			my $lib = shift \|\| ''; $lib =~ s/^browse_//;
348 :			my $name = ($lib eq '')? 'Local' : $problib{$lib};
349 :
350 :			my $list_of_prob_dirs= get_problem_directories($self->r->ce,$lib);
351 :			if(scalar(@$list_of_prob_dirs) == 0) {
352 :			$library_selected = "Found no directories containing problems";
353 :			unshift @{$list_of_prob_dirs}, $library_selected;
354 :			} else {
355 :			my $default_value = SELECT_LOCAL_STRING;
356 :			if (not $library_selected or $library_selected eq $default_value) {
357 :			unshift @{$list_of_prob_dirs}, $default_value;
358 :			$library_selected = $default_value;
359 :			}
360 :			}
361 :			debug("library is $lib and sets are $library_selected");
362 :			my $view_problem_line = view_problems_line('view_local_set', 'View Problems', $self->r);
363 :			my @popup_menu_args = (
364 :			-name => 'library_sets',
365 :			-values => $list_of_prob_dirs,
366 :			-default => $library_selected,
367 :			);
368 :			# make labels without the $lib prefix -- reduces the width of the popup menu
369 :			if (length($lib)) {
370 :			my %labels = map { my($l)=$_=~/^$lib\/(.*)$/;$_=>$l } @$list_of_prob_dirs;
371 :			push @popup_menu_args, -labels => \%labels;
372 :			}
373 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"left"}, "$name Problems: ",
374 :	david gage	6487	CGI::popup_menu(@popup_menu_args),
375 :			CGI::br(),
376 :			$view_problem_line,
377 :	david gage	6492	);
378 :	david gage	6487	}
379 :
380 :			##### Version 2 is local homework sets
381 :			sub browse_mysets_panel {
382 :			my $self = shift;
383 :			my $library_selected = shift;
384 :			my $list_of_local_sets = shift;
385 :			my $remember_local_set = shift;
386 :			my $default_value = "Select a Homework Set";
387 :
388 :			if(scalar(@$list_of_local_sets) == 0) {
389 :			$list_of_local_sets = [NO_LOCAL_SET_STRING];
390 :			} elsif (not $library_selected or $library_selected eq $default_value) {
391 :			unshift @{$list_of_local_sets}, $default_value;
392 :			$library_selected = $default_value;
393 :			}
394 :
395 :			#my $view_problem_line = view_problems_line('view_mysets_set', 'View Problems', $self->r);
396 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"left"},
397 :	david gage	6487	CGI::popup_menu(-name=> 'myset_sets',
398 :			-values=>$list_of_local_sets,
399 :			-default=> $library_selected),
400 :			CGI::hidden(-name=> 'local_sets', -value=>$remember_local_set),
401 :			CGI::br(),
402 :	david gage	6492	CGI::submit(-name=>"view_mysets_set", -value=>"View Set")
403 :			);
404 :	david gage	6487	}
405 :
406 :			##### Version 3 is the problem library
407 :			#
408 :			# This comes in 3 forms, problem library version 1, and for version 2 there
409 :			# is the basic, and the advanced interfaces. This function checks what we are
410 :			# supposed to do, or aborts if the problem library has not been installed.
411 :
412 :			sub browse_library_panel {
413 :			my $self=shift;
414 :			my $r = $self->r;
415 :			my $ce = $r->ce;
416 :
417 :			# See if the problem library is installed
418 :			my $libraryRoot = $r->{ce}->{problemLibrary}->{root};
419 :
420 :			unless($libraryRoot) {
421 :	david gage	6492	print CGI::div({class=>'ResultsWithError', align=>"center"},
422 :			"The problem library has not been installed.");
423 :	david gage	6487	return;
424 :			}
425 :			# Test if the Library directory link exists. If not, try to make it
426 :			unless(-d "$ce->{courseDirs}->{templates}/Library") {
427 :			unless(symlink($libraryRoot, "$ce->{courseDirs}->{templates}/Library")) {
428 :			my $msg = <<"HERE";
429 :			You are missing the directory <code>templates/Library</code>, which is needed
430 :			for the Problem Library to function. It should be a link pointing to
431 :			<code>$libraryRoot</code>, which you set in <code>conf/global.conf</code>.
432 :			I tried to make the link for you, but that failed. Check the permissions
433 :			in your <code>templates</code> directory.
434 :			HERE
435 :			$self->addbadmessage($msg);
436 :			}
437 :			}
438 :
439 :			# Now check what version we are supposed to use
440 :			my $libraryVersion = $r->{ce}->{problemLibrary}->{version} \|\| 1;
441 :			if($libraryVersion == 1) {
442 :			return $self->browse_library_panel1;
443 :			} elsif($libraryVersion == 2) {
444 :			return $self->browse_library_panel2 if($self->{library_basic}==1);
445 :			return $self->browse_library_panel2adv;
446 :			} else {
447 :	david gage	6492	print CGI::div({class=>'ResultsWithError', align=>"center"},
448 :			"The problem library version is set to an illegal value.");
449 :	david gage	6487	return;
450 :			}
451 :			}
452 :
453 :			sub browse_library_panel1 {
454 :			my $self = shift;
455 :			my $r = $self->r;
456 :			my $ce = $r->ce;
457 :
458 :			my @chaps = WeBWorK::Utils::ListingDB::getAllChapters($r->{ce});
459 :			unshift @chaps, LIB2_DATA->{dbchapter}{all};
460 :			my $chapter_selected = $r->param('library_chapters') \|\| LIB2_DATA->{dbchapter}->{all};
461 :
462 :			my @sects=();
463 :			if ($chapter_selected ne LIB2_DATA->{dbchapter}{all}) {
464 :			@sects = WeBWorK::Utils::ListingDB::getAllSections($r->{ce}, $chapter_selected);
465 :			}
466 :
467 :			unshift @sects, ALL_SECTIONS;
468 :			my $section_selected = $r->param('library_sections') \|\| LIB2_DATA->{dbsection}{all};
469 :
470 :			my $view_problem_line = view_problems_line('lib_view', 'View Problems', $self->r);
471 :
472 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"left"},
473 :			CGI::div(["Chapter:",
474 :	david gage	6487	CGI::popup_menu(-name=> 'library_chapters',
475 :			-values=>\@chaps,
476 :			-default=> $chapter_selected,
477 :			-onchange=>"submit();return true"
478 :			),
479 :	david gage	6492	CGI::submit(-name=>"lib_select_chapter", -value=>"Update Section List")]),
480 :			CGI::div("Section:",
481 :	david gage	6487	CGI::popup_menu(-name=> 'library_sections',
482 :			-values=>\@sects,
483 :			-default=> $section_selected
484 :	david gage	6492	)),
485 :			CGI::div($view_problem_line)
486 :			);
487 :	david gage	6487	}
488 :
489 :			sub browse_library_panel2 {
490 :			my $self = shift;
491 :			my $r = $self->r;
492 :			my $ce = $r->ce;
493 :
494 :			my @subjs = WeBWorK::Utils::ListingDB::getAllDBsubjects($r);
495 :			unshift @subjs, LIB2_DATA->{dbsubject}{all};
496 :
497 :			my @chaps = WeBWorK::Utils::ListingDB::getAllDBchapters($r);
498 :			unshift @chaps, LIB2_DATA->{dbchapter}{all};
499 :
500 :			my @sects=();
501 :			@sects = WeBWorK::Utils::ListingDB::getAllDBsections($r);
502 :			unshift @sects, LIB2_DATA->{dbsection}{all};
503 :
504 :			my $subject_selected = $r->param('library_subjects') \|\| LIB2_DATA->{dbsubject}{all};
505 :			my $chapter_selected = $r->param('library_chapters') \|\| LIB2_DATA->{dbchapter}{all};
506 :			my $section_selected = $r->param('library_sections') \|\| LIB2_DATA->{dbsection}{all};
507 :
508 :			my $view_problem_line = view_problems_line('lib_view', 'View Problems', $self->r);
509 :
510 :			my $count_line = WeBWorK::Utils::ListingDB::countDBListings($r);
511 :			if($count_line==0) {
512 :			$count_line = "There are no matching pg files";
513 :			} else {
514 :			$count_line = "There are $count_line matching WeBWorK problem files";
515 :			}
516 :
517 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"left"},
518 :	david gage	6487	CGI::hidden(-name=>"library_is_basic", -default=>1,-override=>1),
519 :	david gage	6492	CGI::div(["Subject:",
520 :	david gage	6487	CGI::popup_menu(-name=> 'library_subjects',
521 :			-values=>\@subjs,
522 :			-default=> $subject_selected,
523 :			-onchange=>"submit();return true"
524 :			)]),
525 :	david gage	6492	CGI::div({-colspan=>2, -align=>"right"},
526 :			CGI::submit(-name=>"lib_select_subject", -value=>"Update Chapter/Section Lists")),
527 :			CGI::div(["Chapter:",
528 :	david gage	6487	CGI::popup_menu(-name=> 'library_chapters',
529 :			-values=>\@chaps,
530 :			-default=> $chapter_selected,
531 :			-onchange=>"submit();return true"
532 :			)]),
533 :	david gage	6492	CGI::div({-colspan=>2, -align=>"right"},
534 :			CGI::submit(-name=>"library_advanced", -value=>"Advanced Search")),
535 :			CGI::div(["Section:",
536 :	david gage	6487	CGI::popup_menu(-name=> 'library_sections',
537 :			-values=>\@sects,
538 :			-default=> $section_selected,
539 :			-onchange=>"submit();return true"
540 :			)]),
541 :	david gage	6492	CGI::div({-colspan=>3}, $view_problem_line),
542 :			CGI::div({-colspan=>3, -align=>"center"}, $count_line)
543 :			);
544 :	david gage	6487
545 :			}
546 :
547 :			sub browse_library_panel2adv {
548 :			my $self = shift;
549 :			my $r = $self->r;
550 :			my $ce = $r->ce;
551 :			my $right_button_style = "width: 18ex";
552 :
553 :			my @subjs = WeBWorK::Utils::ListingDB::getAllDBsubjects($r);
554 :			if(! grep { $_ eq $r->param('library_subjects') } @subjs) {
555 :			$r->param('library_subjects', '');
556 :			}
557 :			unshift @subjs, LIB2_DATA->{dbsubject}{all};
558 :
559 :			my @chaps = WeBWorK::Utils::ListingDB::getAllDBchapters($r);
560 :			if(! grep { $_ eq $r->param('library_chapters') } @chaps) {
561 :			$r->param('library_chapters', '');
562 :			}
563 :			unshift @chaps, LIB2_DATA->{dbchapter}{all};
564 :
565 :			my @sects = WeBWorK::Utils::ListingDB::getAllDBsections($r);
566 :			if(! grep { $_ eq $r->param('library_sections') } @sects) {
567 :			$r->param('library_sections', '');
568 :			}
569 :			unshift @sects, LIB2_DATA->{dbsection}{all};
570 :
571 :			my $texts = WeBWorK::Utils::ListingDB::getDBTextbooks($r);
572 :			my @textarray = map { $_->[0] } @{$texts};
573 :			my %textlabels = ();
574 :			for my $ta (@{$texts}) {
575 :			$textlabels{$ta->[0]} = $ta->[1]." by ".$ta->[2]." (edition ".$ta->[3].")";
576 :			}
577 :			if(! grep { $_ eq $r->param('library_textbook') } @textarray) {
578 :			$r->param('library_textbook', '');
579 :			}
580 :			unshift @textarray, LIB2_DATA->{textbook}{all};
581 :			my $atb = LIB2_DATA->{textbook}{all}; $textlabels{$atb} = LIB2_DATA->{textbook}{all};
582 :
583 :			my $textchap_ref = WeBWorK::Utils::ListingDB::getDBTextbooks($r, 'textchapter');
584 :			my @textchaps = map { $_->[0] } @{$textchap_ref};
585 :			if(! grep { $_ eq $r->param('library_textchapter') } @textchaps) {
586 :			$r->param('library_textchapter', '');
587 :			}
588 :			unshift @textchaps, LIB2_DATA->{textchapter}{all};
589 :
590 :			my $textsec_ref = WeBWorK::Utils::ListingDB::getDBTextbooks($r, 'textsection');
591 :			my @textsecs = map { $_->[0] } @{$textsec_ref};
592 :			if(! grep { $_ eq $r->param('library_textsection') } @textsecs) {
593 :			$r->param('library_textsection', '');
594 :			}
595 :			unshift @textsecs, LIB2_DATA->{textsection}{all};
596 :
597 :			my %selected = ();
598 :			for my $j (qw( dbsection dbchapter dbsubject textbook textchapter textsection )) {
599 :			$selected{$j} = $r->param(LIB2_DATA->{$j}{name}) \|\| LIB2_DATA->{$j}{all};
600 :			}
601 :
602 :			my $text_popup = CGI::popup_menu(-name => 'library_textbook',
603 :			-values =>\@textarray,
604 :			-labels => \%textlabels,
605 :			-default=>$selected{textbook},
606 :			-onchange=>"submit();return true");
607 :
608 :
609 :			my $library_keywords = $r->param('library_keywords') \|\| '';
610 :
611 :			my $view_problem_line = view_problems_line('lib_view', 'View Problems', $self->r);
612 :
613 :			my $count_line = WeBWorK::Utils::ListingDB::countDBListings($r);
614 :			if($count_line==0) {
615 :			$count_line = "There are no matching pg files";
616 :			} else {
617 :			$count_line = "There are $count_line matching WeBWorK problem files";
618 :			}
619 :
620 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"left"},
621 :	david gage	6487	CGI::hidden(-name=>"library_is_basic", -default=>2,-override=>1),
622 :			# Html done by hand since it is temporary
623 :	david gage	6492	CGI::div({-colspan=>4, -align=>"center"}, 'All Selected Constraints Joined by "And"'),
624 :			CGI::div(["Subject:",
625 :	david gage	6487	CGI::popup_menu(-name=> 'library_subjects',
626 :			-values=>\@subjs,
627 :			-default=> $selected{dbsubject},
628 :			-onchange=>"submit();return true"
629 :			)]),
630 :	david gage	6492	CGI::div({-colspan=>2, -align=>"right"},
631 :	david gage	6487	CGI::submit(-name=>"lib_select_subject", -value=>"Update Menus",
632 :	david gage	6492	-style=> $right_button_style)),
633 :			CGI::div(["Chapter:",
634 :	david gage	6487	CGI::popup_menu(-name=> 'library_chapters',
635 :			-values=>\@chaps,
636 :			-default=> $selected{dbchapter},
637 :			-onchange=>"submit();return true"
638 :			)]),
639 :	david gage	6492	CGI::div({-colspan=>2, -align=>"right"},
640 :	david gage	6487	CGI::submit(-name=>"library_reset", -value=>"Reset",
641 :	david gage	6492	-style=>$right_button_style)),
642 :			CGI::div(["Section:",
643 :	david gage	6487	CGI::popup_menu(-name=> 'library_sections',
644 :			-values=>\@sects,
645 :			-default=> $selected{dbsection},
646 :			-onchange=>"submit();return true"
647 :			)]),
648 :	david gage	6492	CGI::div({-colspan=>2, -align=>"right"},
649 :	david gage	6487	CGI::submit(-name=>"library_basic", -value=>"Basic Search",
650 :	david gage	6492	-style=>$right_button_style)),
651 :			CGI::div(["Textbook:", $text_popup]),
652 :			CGI::div(["Text chapter:",
653 :	david gage	6487	CGI::popup_menu(-name=> 'library_textchapter',
654 :			-values=>\@textchaps,
655 :			-default=> $selected{textchapter},
656 :			-onchange=>"submit();return true"
657 :			)]),
658 :	david gage	6492	CGI::div(["Text section:",
659 :	david gage	6487	CGI::popup_menu(-name=> 'library_textsection',
660 :			-values=>\@textsecs,
661 :			-default=> $selected{textsection},
662 :			-onchange=>"submit();return true"
663 :			)]),
664 :	david gage	6492	CGI::div("Keywords:"),CGI::div({-colspan=>2},
665 :	david gage	6487	CGI::textfield(-name=>"library_keywords",
666 :			-default=>$library_keywords,
667 :			-override=>1,
668 :	david gage	6492	-size=>40)),
669 :			CGI::div({-colspan=>3}, $view_problem_line),
670 :			CGI::div({-colspan=>3, -align=>"center"}, $count_line)
671 :			);
672 :	david gage	6487
673 :			}
674 :
675 :
676 :			##### Version 4 is the set definition file panel
677 :
678 :			sub browse_setdef_panel {
679 :			my $self = shift;
680 :			my $r = $self->r;
681 :			my $ce = $r->ce;
682 :			my $library_selected = shift;
683 :			my $default_value = "Select a Set Definition File";
684 :			# in the following line, the parens after sort are important. if they are
685 :			# omitted, sort will interpret get_set_defs as the name of the comparison
686 :			# function, and ($ce->{courseDirs}{templates}) as a single element list to
687 :			# be sorted. barf
688 :			my @list_of_set_defs = sort(get_set_defs($ce->{courseDirs}{templates}));
689 :			if(scalar(@list_of_set_defs) == 0) {
690 :			@list_of_set_defs = (NO_LOCAL_SET_STRING);
691 :			} elsif (not $library_selected or $library_selected eq $default_value) {
692 :			unshift @list_of_set_defs, $default_value;
693 :			$library_selected = $default_value;
694 :			}
695 :			my $view_problem_line = view_problems_line('view_setdef_set', 'View Problems', $self->r);
696 :			my $popupetc = CGI::popup_menu(-name=> 'library_sets',
697 :			-values=>\@list_of_set_defs,
698 :			-default=> $library_selected).
699 :			CGI::br(). $view_problem_line;
700 :			if($list_of_set_defs[0] eq NO_LOCAL_SET_STRING) {
701 :			$popupetc = "there are no set definition files in this course to look at."
702 :			}
703 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"left"}, "Browse from: ",
704 :	david gage	6487	$popupetc
705 :	david gage	6492	);
706 :	david gage	6487	}
707 :
708 :			sub make_mysets_row {
709 :			my $self = shift;
710 :			my $r = $self->r;
711 :			my $ce = $r->ce;
712 :			my %data = @_;
713 :
714 :			my $list_of_local_sets = $data{all_db_sets};
715 :			my $have_local_sets = scalar(@$list_of_local_sets);
716 :			my $browse_which = 'browse_mysets';
717 :			my $library_selected = $self->{current_myset_set};
718 :			my $set_selected = $r->param('myset_sets');
719 :			my $remember_local_set = $r->param('local_sets');
720 :
721 :			## Make buttons for additional problem libraries
722 :			#my $libs = '';
723 :			#foreach my $lib (sort(keys(%problib))) {
724 :			# $libs .= ' '. CGI::submit(-name=>"browse_$lib", -value=>$problib{$lib},
725 :			# ($browse_which eq "browse_$lib")? (-disabled=>1): ())
726 :			# if (-d "$ce->{courseDirs}{templates}/$lib");
727 :			#}
728 :			#$libs = CGI::br()."or Problems from".$libs if $libs ne '';
729 :
730 :			my $these_widths = "width: 25ex";
731 :
732 :			if($have_local_sets ==0) {
733 :			$list_of_local_sets = [NO_LOCAL_SET_STRING];
734 :			} elsif (not defined($set_selected) or $set_selected eq ""
735 :			or $set_selected eq SELECT_SET_STRING) {
736 :			unshift @{$list_of_local_sets}, SELECT_SET_STRING;
737 :			$set_selected = SELECT_SET_STRING;
738 :			}
739 :			my $myjs = 'document.mainform.selfassign.value=confirm("Should I assign the new set to you now?\nUse OK for yes and Cancel for no.");true;';
740 :
741 :			# Tidy this list up since it is used in two different places
742 :			if ($list_of_local_sets->[0] eq SELECT_SET_STRING) {
743 :			shift @{$list_of_local_sets};
744 :			}
745 :
746 :	david gage	6492	#print CGI::div(CGI::div({-bgcolor=>"black"}));
747 :	david gage	6487	#print CGI::hr();
748 :
749 :			$self->browse_mysets_panel($library_selected, $list_of_local_sets, $remember_local_set);
750 :			}
751 :
752 :			sub make_top_row {
753 :			my $self = shift;
754 :			my $r = $self->r;
755 :			my $ce = $r->ce;
756 :			my %data = @_;
757 :
758 :			my $list_of_local_sets = $data{all_db_sets};
759 :			my $have_local_sets = scalar(@$list_of_local_sets);
760 :			my $browse_which = $data{browse_which};
761 :			my $library_selected = $self->{current_library_set};
762 :			my $set_selected = $r->param('local_sets');
763 :			my (@dis1, @dis2, @dis3, @dis4) = ();
764 :			@dis1 = (-disabled=>1) if($browse_which eq 'browse_npl_library');
765 :			@dis2 = (-disabled=>1) if($browse_which eq 'browse_local');
766 :			@dis3 = (-disabled=>1) if($browse_which eq 'browse_mysets');
767 :			@dis4 = (-disabled=>1) if($browse_which eq 'browse_setdefs');
768 :
769 :			## Make buttons for additional problem libraries
770 :			my $libs = '';
771 :			foreach my $lib (sort(keys(%problib))) {
772 :			$libs .= ' '. CGI::submit(-name=>"browse_$lib", -value=>$problib{$lib},
773 :			($browse_which eq "browse_$lib")? (-disabled=>1): ())
774 :			if (-d "$ce->{courseDirs}{templates}/$lib");
775 :			}
776 :			$libs = CGI::br()."or Problems from".$libs if $libs ne '';
777 :
778 :			my $these_widths = "width: 25ex";
779 :
780 :			if($have_local_sets ==0) {
781 :			$list_of_local_sets = [NO_LOCAL_SET_STRING];
782 :			} elsif (not defined($set_selected) or $set_selected eq ""
783 :			or $set_selected eq SELECT_SET_STRING) {
784 :			unshift @{$list_of_local_sets}, SELECT_SET_STRING;
785 :			$set_selected = SELECT_SET_STRING;
786 :			}
787 :			my $myjs = 'document.mainform.selfassign.value=confirm("Should I assign the new set to you now?\nUse OK for yes and Cancel for no.");true;';
788 :			## edited this, as a demo for the current set problem list
789 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"left"},
790 :	david gage	6487	CGI::submit(-name=>"new_local_set", -value=>"Create a New Set in This Course:",
791 :			-onclick=>$myjs
792 :			),
793 :			" ",
794 :			CGI::textfield(-name=>"new_set_name",
795 :			-default=>"Name for new set here",
796 :			-override=>1, -size=>30),
797 :	david gage	6492	);
798 :	david gage	6487
799 :			# Tidy this list up since it is used in two different places
800 :			if ($list_of_local_sets->[0] eq SELECT_SET_STRING) {
801 :			shift @{$list_of_local_sets};
802 :			}
803 :
804 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"center"},
805 :	david gage	6487	"Browse ",
806 :			CGI::submit(-name=>"browse_npl_library", -value=>"National Problem Library", -style=>$these_widths, @dis1),
807 :			CGI::submit(-name=>"browse_local", -value=>"Local Problems", -style=>$these_widths, @dis2),
808 :			CGI::submit(-name=>"browse_setdefs", -value=>"Set Definition Files", -style=>$these_widths, @dis4),
809 :			$libs,
810 :	david gage	6492	);
811 :	david gage	6487
812 :			if ($browse_which eq 'browse_local') {
813 :			$self->browse_local_panel($library_selected);
814 :			} elsif ($browse_which eq 'browse_mysets') {
815 :			$self->browse_mysets_panel($library_selected, $list_of_local_sets);
816 :			} elsif ($browse_which eq 'browse_npl_library') {
817 :			$self->browse_library_panel();
818 :			} elsif ($browse_which eq 'browse_setdefs') {
819 :			$self->browse_setdef_panel($library_selected);
820 :			} else { ## handle other problem libraries
821 :			$self->browse_local_panel($library_selected,$browse_which);
822 :			}
823 :
824 :	david gage	6492	print CGI::div({-class=>"InfoPanel", -align=>"center"},
825 :	david gage	6487	CGI::submit(-name=>"select_all", -style=>$these_widths,
826 :			-value=>"Mark All For Adding"),
827 :			CGI::submit(-name=>"select_none", -style=>$these_widths,
828 :			-value=>"Clear All Marks"),
829 :	david gage	6492	),
830 :			CGI::div({},
831 :	david gage	6487	CGI::submit(-name=>"update", -style=>$these_widths. "; font-weight:bold",
832 :			-value=>"Update Set"),
833 :			CGI::submit(-name=>"rerandomize",
834 :			-style=>$these_widths,
835 :			-value=>"Rerandomize"),
836 :			CGI::submit(-name=>"cleardisplay",
837 :			-style=>$these_widths,
838 :			-value=>"Clear Problem Display")
839 :	david gage	6492	);
840 :	david gage	6487	}
841 :
842 :			sub make_data_row {
843 :			my $self = shift;
844 :			my $sourceFileName = shift;
845 :			my $pg = shift;
846 :			my $cnt = shift;
847 :			my $mark = shift \|\| 0;
848 :
849 :			$sourceFileName =~ s\|^./\|\|; # clean up top ugliness
850 :
851 :			my $urlpath = $self->r->urlpath;
852 :			my $db = $self->r->db;
853 :
854 :			## to set up edit and try links elegantly we want to know if
855 :			## any target set is a gateway assignment or not
856 :			my $localSet = $self->r->param('local_sets');
857 :			my $setRecord;
858 :			if ( defined($localSet) && $localSet ne SELECT_SET_STRING &&
859 :			$localSet ne NO_LOCAL_SET_STRING ) {
860 :			$setRecord = $db->getGlobalSet( $localSet );
861 :			}
862 :			my $isGatewaySet = ( defined($setRecord) &&
863 :			$setRecord->assignment_type =~ /gateway/ );
864 :
865 :			my $problem_output = $pg->{flags}->{error_flag} ?
866 :			CGI::div({class=>"ResultsWithError"}, CGI::em("This problem produced an error"))
867 :			: CGI::div({class=>"RenderSolo"}, $pg->{body_text});
868 :			$problem_output .= $pg->{flags}->{comment} if($pg->{flags}->{comment});
869 :
870 :
871 :			#if($self->{r}->param('browse_which') ne 'browse_npl_library') {
872 :			my $problem_seed = $self->{'problem_seed'} \|\| 1234;
873 :			my $edit_link = CGI::a({href=>$self->systemLink(
874 :			$urlpath->newFromModule("WeBWorK::ContentGenerator::Instructor::PGProblemEditor",
875 :			courseID =>$urlpath->arg("courseID"),
876 :			setID=>"Undefined_Set",
877 :			problemID=>"1"),
878 :			params=>{sourceFilePath => "$sourceFileName", problemSeed=> $problem_seed}
879 :			), target=>"WW_Editor"}, "Edit it" );
880 :
881 :			my $displayMode = $self->r->param("mydisplayMode");
882 :			$displayMode = $self->r->ce->{pg}->{options}->{displayMode}
883 :			if not defined $displayMode or $displayMode eq "None";
884 :			my $module = ( $isGatewaySet ) ? "GatewayQuiz" : "Problem";
885 :			my %pathArgs = ( courseID =>$urlpath->arg("courseID"),
886 :			setID=>"Undefined_Set" );
887 :			$pathArgs{problemID} = "1" if ( ! $isGatewaySet );
888 :
889 :			my $try_link = CGI::a({href=>$self->systemLink(
890 :			$urlpath->newFromModule("WeBWorK::ContentGenerator::$module",
891 :			%pathArgs ),
892 :			params =>{
893 :			effectiveUser => scalar($self->r->param('user')),
894 :			editMode => "SetMaker",
895 :			problemSeed=> $problem_seed,
896 :			sourceFilePath => "$sourceFileName",
897 :			displayMode => $displayMode,
898 :			}
899 :			), target=>"WW_View"}, "Try it");
900 :
901 :			my %add_box_data = ( -id=>"trial$cnt" ,-name=>"trial$cnt",-value=>1,-label=>"Add this problem to the target set on the next update");
902 :			if($mark & SUCCESS) {
903 :			$add_box_data{ -label } .= " (just added this problem)";
904 :			} elsif($mark & ADDED) {
905 :			$add_box_data{ -checked } = 1;
906 :			}
907 :
908 :			if(!($self->{isInSet}{$sourceFileName})){
909 :
910 :	david gage	6492	print CGI::div({-align=>"left", -draggable=>"true", -href=>"#", -id=>"$cnt"},
911 :	david gage	6487	CGI::div({-style=>"background-color: #DDDDDD; margin: 0px auto"},
912 :			CGI::span({-style=>"float:left ; text-align: left"},"File name: $sourceFileName "),
913 :			CGI::span({-style=>"float:right ; text-align: right"}, $edit_link, " ", $try_link)
914 :			), CGI::br(),
915 :			CGI::checkbox(-id=>"hideme$cnt", -name=>"hideme$cnt",-value=>1,-label=>"Don't show this problem on the next update",-override=>1),
916 :			CGI::br(),
917 :			CGI::checkbox((%add_box_data),-override=>1),
918 :			CGI::hidden(-name=>"filetrial$cnt", -default=>$sourceFileName,-override=>1).
919 :			CGI::p($problem_output),
920 :	david gage	6492	);
921 :	david gage	6487	}
922 :			}
923 :
924 :			sub make_myset_data_row {
925 :			my $self = shift;
926 :			my $sourceFileName = shift;
927 :			my $pg = shift;
928 :			my $cnt = shift;
929 :			my $mark = shift \|\| 0;
930 :
931 :			$sourceFileName =~ s\|^./\|\|; # clean up top ugliness
932 :
933 :			my $urlpath = $self->r->urlpath;
934 :			my $db = $self->r->db;
935 :
936 :			## to set up edit and try links elegantly we want to know if
937 :			## any target set is a gateway assignment or not
938 :			my $localSet = $self->r->param('local_sets');
939 :			my $setRecord;
940 :			if ( defined($localSet) && $localSet ne SELECT_SET_STRING &&
941 :			$localSet ne NO_LOCAL_SET_STRING ) {
942 :			$setRecord = $db->getGlobalSet( $localSet );
943 :			}
944 :			my $isGatewaySet = ( defined($setRecord) &&
945 :			$setRecord->assignment_type =~ /gateway/ );
946 :
947 :			my $problem_output = $pg->{flags}->{error_flag} ?
948 :			CGI::div({class=>"ResultsWithError"}, CGI::em("This problem produced an error"))
949 :			: CGI::div({class=>"RenderSolo"}, $pg->{body_text});
950 :			$problem_output .= $pg->{flags}->{comment} if($pg->{flags}->{comment});
951 :
952 :
953 :			#if($self->{r}->param('browse_which') ne 'browse_npl_library') {
954 :			my $problem_seed = $self->{'problem_seed'} \|\| 1234;
955 :			my $edit_link = CGI::a({href=>$self->systemLink(
956 :			$urlpath->newFromModule("WeBWorK::ContentGenerator::Instructor::PGProblemEditor",
957 :			courseID =>$urlpath->arg("courseID"),
958 :			setID=>"Undefined_Set",
959 :			problemID=>"1"),
960 :			params=>{sourceFilePath => "$sourceFileName", problemSeed=> $problem_seed}
961 :			), target=>"WW_Editor"}, "Edit it" );
962 :
963 :	david gage	6492	my %delete_box_data = ( -id=>"deleted$cnt".'myset' ,-name=>"deleted$cnt",-value=>1,-label=>"Delete this problem from the target set on the next update");
964 :
965 :	david gage	6487	my $displayMode = $self->r->param("mydisplayMode");
966 :			$displayMode = $self->r->ce->{pg}->{options}->{displayMode}
967 :			if not defined $displayMode or $displayMode eq "None";
968 :			my $module = ( $isGatewaySet ) ? "GatewayQuiz" : "Problem";
969 :			my %pathArgs = ( courseID =>$urlpath->arg("courseID"),
970 :			setID=>"Undefined_Set" );
971 :			$pathArgs{problemID} = "1" if ( ! $isGatewaySet );
972 :
973 :			my $try_link = CGI::a({href=>$self->systemLink(
974 :			$urlpath->newFromModule("WeBWorK::ContentGenerator::$module",
975 :			%pathArgs ),
976 :			params =>{
977 :			effectiveUser => scalar($self->r->param('user')),
978 :			editMode => "SetMaker",
979 :			problemSeed=> $problem_seed,
980 :			sourceFilePath => "$sourceFileName",
981 :			displayMode => $displayMode,
982 :			}
983 :			), target=>"WW_View"}, "Try it");
984 :
985 :	david gage	6492	print CGI::div({-class=>"problem myProblem", -draggable=>"true", -href=>"#", -id=>("$cnt".'myset')},
986 :	david gage	6487	CGI::div({-style=>"background-color: #DDDDDD; margin: 0px auto"},
987 :			CGI::span({-style=>"float:left ; text-align: left"},"File name: $sourceFileName "),
988 :			CGI::span({-style=>"float:right ; text-align: right"}, $edit_link, " ", $try_link)
989 :			), CGI::br(),
990 :			CGI::br(),
991 :	david gage	6492	CGI::checkbox((%delete_box_data),-override=>1),
992 :	david gage	6487	CGI::hidden(-name=>"filetrial$cnt", -default=>$sourceFileName,-override=>1).
993 :			CGI::p($problem_output),
994 :	david gage	6492	);
995 :	david gage	6487	}
996 :
997 :			sub clear_default {
998 :			my $r = shift;
999 :			my $param = shift;
1000 :			my $default = shift;
1001 :			my $newvalue = $r->param($param) \|\| '';
1002 :			$newvalue = '' if($newvalue eq $default);
1003 :			$r->param($param, $newvalue);
1004 :			}
1005 :
1006 :			sub pre_header_initialize {
1007 :			my ($self) = @_;
1008 :			my $r = $self->r;
1009 :			## For all cases, lets set some things
1010 :			$self->{error}=0;
1011 :			my $ce = $r->ce;
1012 :			my $db = $r->db;
1013 :			my $maxShown = $r->param('max_shown') \|\| MAX_SHOW_DEFAULT;
1014 :			$maxShown = 10000000 if($maxShown eq 'All'); # let's hope there aren't more
1015 :			my $library_basic = $r->param('library_is_basic') \|\| 1;
1016 :			$self->{problem_seed} = $r->param('problem_seed') \|\| 1234;
1017 :			## Fix some parameters
1018 :			for my $key (keys(%{ LIB2_DATA() })) {
1019 :			clear_default($r, LIB2_DATA->{$key}->{name}, LIB2_DATA->{$key}->{all} );
1020 :			}
1021 :			## Grab library sets to display from parameters list. We will modify this
1022 :			## as we go through the if/else tree
1023 :			$self->{current_library_set} = $r->param('library_sets');
1024 :			$self->{current_myset_set} = $r->param('myset_sets');
1025 :			if (not defined($self->{current_myset_set})
1026 :			or $self->{current_myset_set} eq "Select a Homework Set"
1027 :			or $self->{current_myset_set} eq NO_LOCAL_SET_STRING) {
1028 :			my @all_db_sets = $db->listGlobalSets;
1029 :			@all_db_sets = sortByName(undef, @all_db_sets);
1030 :			$self->{current_myset_set} = shift(@all_db_sets);
1031 :			}
1032 :
1033 :			## These directories will have individual buttons
1034 :			%problib = %{$ce->{courseFiles}{problibs}} if $ce->{courseFiles}{problibs};
1035 :
1036 :			my $userName = $r->param('user');
1037 :			my $user = $db->getUser($userName); # checked
1038 :			die "record for user $userName (real user) does not exist."
1039 :			unless defined $user;
1040 :			my $authz = $r->authz;
1041 :			unless ($authz->hasPermissions($userName, "modify_problem_sets")) {
1042 :			return(""); # Error message already produced in the body
1043 :			}
1044 :
1045 :			## Now one action we have to deal with here
1046 :			if ($r->param('edit_local')) {
1047 :			my $urlpath = $r->urlpath;
1048 :			my $db = $r->db;
1049 :			my $checkset = $db->getGlobalSet($r->param('local_sets'));
1050 :			if (not defined($checkset)) {
1051 :			$self->{error} = 1;
1052 :			$self->addbadmessage('You need to select a "Target Set" before you can edit it.');
1053 :			} else {
1054 :			my $page = $urlpath->newFromModule('WeBWorK::ContentGenerator::Instructor::ProblemSetDetail', setID=>$r->param('local_sets'), courseID=>$urlpath->arg("courseID"));
1055 :			my $url = $self->systemLink($page);
1056 :			$self->reply_with_redirect($url);
1057 :			}
1058 :			}
1059 :
1060 :			## Next, lots of set up so that errors can be reported with message()
1061 :
1062 :			############# List of problems we have already printed
1063 :
1064 :			$self->{past_problems} = get_past_problem_files($r);
1065 :			# if we don't end up reusing problems, this will be wiped out
1066 :			# if we do redisplay the same problems, we must adjust this accordingly
1067 :			my @past_marks = map {$_->[1]} @{$self->{past_problems}};
1068 :			my $none_shown = scalar(@{$self->{past_problems}})==0;
1069 :			my @pg_files=();
1070 :			my @myset_files=();
1071 :			my $use_previous_problems = 1;
1072 :			my $first_shown = $r->param('first_shown') \|\| 0;
1073 :			my $last_shown = $r->param('last_shown');
1074 :			if (not defined($last_shown)) {
1075 :			$last_shown = -1;
1076 :			}
1077 :			my @all_past_list = (); # these are include requested, but not shown
1078 :			my $j = 0;
1079 :			while (defined($r->param("all_past_list$j"))) {
1080 :			push @all_past_list, $r->param("all_past_list$j");
1081 :			$j++;
1082 :			}
1083 :
1084 :			############# Default of which problem selector to display
1085 :
1086 :			my $browse_which = $r->param('browse_which') \|\| 'browse_npl_library';
1087 :
1088 :
1089 :
1090 :			## check for problem lib buttons
1091 :			my $browse_lib = '';
1092 :			foreach my $lib (keys %problib) {
1093 :			if ($r->param("browse_$lib")) {
1094 :			$browse_lib = "browse_$lib";
1095 :			last;
1096 :			}
1097 :			}
1098 :
1099 :
1100 :			########### Start the logic through if elsif elsif ...
1101 :			debug("browse_lib", $r->param("$browse_lib"));
1102 :			debug("browse_npl_library", $r->param("browse_npl_library"));
1103 :			debug("browse_mysets", $r->param("browse_mysets"));
1104 :			debug("browse_setdefs", $r->param("browse_setdefs"));
1105 :			##### Asked to browse certain problems
1106 :			if ($browse_lib ne '') {
1107 :			$browse_which = $browse_lib;
1108 :			$self->{current_library_set} = "";
1109 :			$use_previous_problems = 0; @pg_files = (); ## clear old problems
1110 :			} elsif ($r->param('browse_npl_library')) {
1111 :			$browse_which = 'browse_npl_library';
1112 :			$self->{current_library_set} = "";
1113 :			$use_previous_problems = 0; @pg_files = (); ## clear old problems
1114 :			} elsif ($r->param('browse_local')) {
1115 :			$browse_which = 'browse_local';
1116 :			#$self->{current_library_set} = "";
1117 :			$use_previous_problems = 0; @pg_files = (); ## clear old problems
1118 :			} elsif ($r->param('browse_mysets')) {
1119 :			$browse_which = 'browse_mysets';
1120 :			$self->{current_library_set} = "";
1121 :			$use_previous_problems = 0; @pg_files = (); ## clear old problems
1122 :			} elsif ($r->param('browse_setdefs')) {
1123 :			$browse_which = 'browse_setdefs';
1124 :			$self->{current_library_set} = "";
1125 :			$use_previous_problems = 0; @pg_files = (); ## clear old problems
1126 :
1127 :			##### Change the seed value
1128 :
1129 :			} elsif ($r->param('rerandomize')) {
1130 :			$self->{problem_seed}= 1+$self->{problem_seed};
1131 :			#$r->param('problem_seed', $problem_seed);
1132 :			$self->addbadmessage('Changing the problem seed for display, but there are no problems showing.') if $none_shown;
1133 :
1134 :			##### Clear the display
1135 :
1136 :			} elsif ($r->param('cleardisplay')) {
1137 :			@pg_files = ();
1138 :			$use_previous_problems=0;
1139 :			$self->addbadmessage('The display was already cleared.') if $none_shown;
1140 :
1141 :			##### View problems selected from the local list
1142 :
1143 :			} elsif ($r->param('view_local_set')) {
1144 :
1145 :			my $set_to_display = $self->{current_library_set};
1146 :			if (not defined($set_to_display) or $set_to_display eq SELECT_LOCAL_STRING or $set_to_display eq "Found no directories containing problems") {
1147 :			$self->addbadmessage('You need to select a set to view.');
1148 :			} else {
1149 :			$set_to_display = '.' if $set_to_display eq MY_PROBLEMS;
1150 :			$set_to_display = substr($browse_which,7) if $set_to_display eq MAIN_PROBLEMS;
1151 :			@pg_files = list_pg_files($ce->{courseDirs}->{templates},
1152 :			"$set_to_display");
1153 :			$use_previous_problems=0;
1154 :			}
1155 :
1156 :			##### View problems selected from the a set in this course
1157 :
1158 :
1159 :			##### View from the library database
1160 :
1161 :			} elsif ($r->param('lib_view')) {
1162 :
1163 :			@pg_files=();
1164 :			my @dbsearch = WeBWorK::Utils::ListingDB::getSectionListings($r);
1165 :			my ($result, $tolibpath);
1166 :			for $result (@dbsearch) {
1167 :			$tolibpath = "Library/$result->{path}/$result->{filename}";
1168 :
1169 :			## Too clunky!!!!
1170 :			push @pg_files, $tolibpath;
1171 :			}
1172 :			$use_previous_problems=0;
1173 :
1174 :			##### View a set from a set*.def
1175 :
1176 :			} elsif ($r->param('view_setdef_set')) {
1177 :
1178 :			my $set_to_display = $self->{current_library_set};
1179 :			debug("set_to_display is $set_to_display");
1180 :			if (not defined($set_to_display)
1181 :			or $set_to_display eq "Select a Set Definition File"
1182 :			or $set_to_display eq NO_LOCAL_SET_STRING) {
1183 :			$self->addbadmessage("You need to select a set definition file to view.");
1184 :			} else {
1185 :			@pg_files= $self->read_set_def($set_to_display);
1186 :			}
1187 :			$use_previous_problems=0;
1188 :
1189 :			##### Edit the current local homework set
1190 :
1191 :			} elsif ($r->param('edit_local')) { ## Jump to set edit page
1192 :
1193 :			; # already handled
1194 :
1195 :
1196 :			##### Make a new local homework set
1197 :
1198 :			} elsif ($r->param('new_local_set')) {
1199 :			if ($r->param('new_set_name') !~ /^[\w .-]*$/) {
1200 :			$self->addbadmessage("The name ".$r->param('new_set_name')." is not a valid set name. Use only letters, digits, -, _, and .");
1201 :			} else {
1202 :			my $newSetName = $r->param('new_set_name');
1203 :			# if we want to munge the input set name, do it here
1204 :			$newSetName =~ s/\s/_/g;
1205 :			debug("local_sets was ", $r->param('local_sets'));
1206 :			$r->param('local_sets',$newSetName); ## use of two parameter param
1207 :			debug("new value of local_sets is ", $r->param('local_sets'));
1208 :			my $newSetRecord = $db->getGlobalSet($newSetName);
1209 :			if (defined($newSetRecord)) {
1210 :			$self->addbadmessage("The set name $newSetName is already in use.
1211 :			Pick a different name if you would like to start a new set.");
1212 :			} else { # Do it!
1213 :			# DBFIXME use $db->newGlobalSet
1214 :			$newSetRecord = $db->{set}->{record}->new();
1215 :			$newSetRecord->set_id($newSetName);
1216 :			$newSetRecord->set_header("");
1217 :			$newSetRecord->hardcopy_header("");
1218 :			$newSetRecord->open_date(time()+606024*7); # in one week
1219 :			$newSetRecord->due_date(time()+60602472); # in two weeks
1220 :			$newSetRecord->answer_date(time()+60602473); # in three weeks
1221 :			eval {$db->addGlobalSet($newSetRecord)};
1222 :			if ($@) {
1223 :			$self->addbadmessage("Problem creating set $newSetName<br> $@");
1224 :			} else {
1225 :			$self->addgoodmessage("Set $newSetName has been created.");
1226 :			my $selfassign = $r->param('selfassign') \|\| "";
1227 :			$selfassign = "" if($selfassign =~ /false/i); # deal with javascript false
1228 :			if($selfassign) {
1229 :			$self->assignSetToUser($userName, $newSetRecord);
1230 :			$self->addgoodmessage("Set $newSetName was assigned to $userName.");
1231 :			}
1232 :			}
1233 :			}
1234 :			}
1235 :
1236 :			##### Add selected problems to the current local set
1237 :
1238 :			} elsif ($r->param('update')) {
1239 :			## first handle problems to be added before we hide them
1240 :			my($localSet, @selected);
1241 :
1242 :	david gage	6492	@pg_files = grep {(($_->[1] & ADDED) \|\| ($_->[1] & DELETED)) != 0 } @{$self->{past_problems}};
1243 :	david gage	6487	@selected = map {$_->[0]} @pg_files;
1244 :
1245 :			my @action_files = grep {$_->[1] > 0 } @{$self->{past_problems}};
1246 :			# There are now good reasons to do an update without selecting anything.
1247 :			#if(scalar(@action_files) == 0) {
1248 :			# $self->addbadmessage('Update requested, but no problems were marked.');
1249 :			#}
1250 :
1251 :			if (scalar(@selected)>0) { # if some are to be added, they need a place to go
1252 :			$localSet = $r->param('myset_sets');
1253 :			if (not defined($localSet) or
1254 :			$localSet eq SELECT_SET_STRING or
1255 :			$localSet eq NO_LOCAL_SET_STRING) {
1256 :			$self->addbadmessage('You are trying to add problems to something,
1257 :			but you did not select a "Target Set" name as a target.');
1258 :			} else {
1259 :			my $newSetRecord = $db->getGlobalSet($localSet);
1260 :			if (not defined($newSetRecord)) {
1261 :			$self->addbadmessage("You are trying to add problems to $localSet,
1262 :			but that set does not seem to exist! I bet you used your \"Back\" button.");
1263 :			} else {
1264 :			my $addcount = add_selected($self, $db, $localSet);
1265 :			if($addcount > 0) {
1266 :			$self->addgoodmessage("Added $addcount problem".(($addcount>1)?'s':'').
1267 :			" to $localSet.");
1268 :			}
1269 :			}
1270 :			}
1271 :			}
1272 :			## now handle problems to be hidden
1273 :
1274 :			## only keep the ones which are not hidden
1275 :			@pg_files = grep {($_->[1] & HIDDEN) ==0 } @{$self->{past_problems}};
1276 :			@past_marks = map {$_->[1]} @pg_files;
1277 :			@pg_files = map {$_->[0]} @pg_files;
1278 :			@all_past_list = (@all_past_list[0..($first_shown-1)],
1279 :			@pg_files,
1280 :			@all_past_list[($last_shown+1)..(scalar(@all_past_list)-1)]);
1281 :			$last_shown = $first_shown+$maxShown -1; debug("last_shown 3: ", $last_shown);
1282 :			$last_shown = (scalar(@all_past_list)-1) if($last_shown>=scalar(@all_past_list)); debug("last_shown 4: ", $last_shown);
1283 :
1284 :			} elsif ($r->param('next_page')) {
1285 :			$first_shown = $last_shown+1;
1286 :			$last_shown = $first_shown+$maxShown-1; debug("last_shown 5: ", $last_shown);
1287 :			$last_shown = (scalar(@all_past_list)-1) if($last_shown>=scalar(@all_past_list)); debug("last_shown 6: ", $last_shown);
1288 :			@past_marks = ();
1289 :			} elsif ($r->param('prev_page')) {
1290 :			$last_shown = $first_shown-1;
1291 :			$first_shown = $last_shown - $maxShown+1;
1292 :
1293 :			$first_shown = 0 if($first_shown<0);
1294 :			@past_marks = ();
1295 :
1296 :			} elsif ($r->param('select_all')) {
1297 :			@past_marks = map {1} @past_marks;
1298 :			} elsif ($r->param('library_basic')) {
1299 :			$library_basic = 1;
1300 :			for my $jj (qw(textchapter textsection textbook)) {
1301 :			$r->param('library_'.$jj,'');
1302 :			}
1303 :			} elsif ($r->param('library_advanced')) {
1304 :			$library_basic = 2;
1305 :			} elsif ($r->param('library_reset')) {
1306 :			for my $jj (qw(chapters sections subjects textbook keywords)) {
1307 :			$r->param('library_'.$jj,'');
1308 :			}
1309 :			} elsif ($r->param('select_none')) {
1310 :			@past_marks = ();
1311 :			} else {
1312 :			#nothing
1313 :			} ##### end of the if elsif ...
1314 :
1315 :			my $default_set = $self->{current_myset_set};
1316 :			#debug("set_to_display is $default_set");
1317 :			if (not defined($default_set)
1318 :			or $default_set eq "Select a Homework Set"
1319 :			or $default_set eq NO_LOCAL_SET_STRING) {
1320 :			$self->addbadmessage("You need to select a set from this course to view.");
1321 :			} else {
1322 :			# DBFIXME don't use ID list, use an iterator
1323 :			my @problemList = $db->listGlobalProblems($default_set);
1324 :			my $problem;
1325 :			@myset_files=();
1326 :			for $problem (@problemList) {
1327 :			my $problemRecord = $db->getGlobalProblem($default_set, $problem); # checked
1328 :			die "global $problem for set $default_set not found." unless
1329 :			$problemRecord;
1330 :			push @myset_files, $problemRecord->source_file;
1331 :
1332 :			}
1333 :			@myset_files = sortByName(undef,@myset_files);
1334 :			$use_previous_problems=0;
1335 :			}
1336 :
1337 :			############# List of local sets
1338 :
1339 :			# DBFIXME sorting in database, please!
1340 :			my @all_db_sets = $db->listGlobalSets;
1341 :			@all_db_sets = sortByName(undef, @all_db_sets);
1342 :
1343 :			if ($use_previous_problems) {
1344 :			@pg_files = @all_past_list;
1345 :			} else {
1346 :			$first_shown = 0;
1347 :			$last_shown = scalar(@pg_files)<$maxShown ? scalar(@pg_files) : $maxShown;
1348 :			$last_shown--; # to make it an array index
1349 :			@past_marks = ();
1350 :			}
1351 :			############# Now store data in self for retreival by body
1352 :			$self->{first_shown} = $first_shown;
1353 :			$self->{last_shown} = $last_shown;
1354 :			$self->{browse_which} = $browse_which;
1355 :			#$self->{problem_seed} = $problem_seed;
1356 :			$self->{pg_files} = \@pg_files;
1357 :			$self->{myset_files} = \@myset_files;
1358 :			$self->{past_marks} = \@past_marks;
1359 :			$self->{all_db_sets} = \@all_db_sets;
1360 :			$self->{library_basic} = $library_basic;
1361 :			debug("past_marks is ", join(" ", @{$self->{past_marks}}));
1362 :			}
1363 :
1364 :
1365 :			sub title {
1366 :			return "Library Browser v2";
1367 :			}
1368 :
1369 :			# hide view options panel since it distracts from SetMaker's built-in view options
1370 :			sub options {
1371 :			return "";
1372 :			}
1373 :
1374 :			sub head {
1375 :			print '<script src="/webwork2_files/js/dnd.js"></script>';
1376 :			print '<link rel="stylesheet" type="text/css" href="/webwork2_files/css/setmaker2.css" />';
1377 :			print '<script>window.addEventListener("load", setup, false);</script>';
1378 :			return "";
1379 :			}
1380 :
1381 :			sub body {
1382 :			my ($self) = @_;
1383 :
1384 :			my $r = $self->r;
1385 :			my $ce = $r->ce; # course environment
1386 :			my $db = $r->db; # database
1387 :			my $j; # garden variety counter
1388 :
1389 :			my $userName = $r->param('user');
1390 :
1391 :			my $user = $db->getUser($userName); # checked
1392 :			die "record for user $userName (real user) does not exist."
1393 :			unless defined $user;
1394 :
1395 :			### Check that this is a professor
1396 :			my $authz = $r->authz;
1397 :			unless ($authz->hasPermissions($userName, "modify_problem_sets")) {
1398 :			print "User $userName returned " .
1399 :			$authz->hasPermissions($user, "modify_problem_sets") .
1400 :			" for permission";
1401 :			return(CGI::div({class=>'ResultsWithError'},
1402 :			CGI::em("You are not authorized to access the Instructor tools.")));
1403 :			}
1404 :
1405 :			my $showHints = $r->param('showHints');
1406 :			my $showSolutions = $r->param('showSolutions');
1407 :
1408 :			########## Extract information computed in pre_header_initialize
1409 :
1410 :			my $first_shown = $self->{first_shown};
1411 :			my $last_shown = $self->{last_shown};
1412 :			my $browse_which = $self->{browse_which};
1413 :			my $problem_seed = $self->{problem_seed}\|\|1234;
1414 :			my @pg_files = @{$self->{pg_files}};
1415 :			my @myset_files =@{$self->{myset_files}};
1416 :			my @all_db_sets = @{$self->{all_db_sets}};
1417 :
1418 :			my @pg_html;
1419 :			if ($last_shown >= $first_shown) {
1420 :			@pg_html = renderProblems(
1421 :			r=> $r,
1422 :			user => $user,
1423 :			problem_list => [@pg_files[$first_shown..$last_shown]],
1424 :			displayMode => $r->param('mydisplayMode'),
1425 :			showHints => $showHints,
1426 :			showSolutions => $showSolutions,
1427 :			);
1428 :			}
1429 :			my @myset_html;
1430 :			my $displayModePlaceholder;
1431 :			if (not defined($r->param('mydisplayMode'))){
1432 :			$displayModePlaceholder = "None";
1433 :			}
1434 :			else{
1435 :			$displayModePlaceholder = $r->param('mydisplayMode');
1436 :			}
1437 :			if (scalar(@myset_files) >= $first_shown) {
1438 :			@myset_html = renderProblems(
1439 :			r=> $r,
1440 :			user => $user,
1441 :			problem_list => [@myset_files[$first_shown..(scalar(@myset_files)-1)]],
1442 :			displayMode => $displayModePlaceholder,
1443 :			showHints => $showHints,
1444 :			showSolutions => $showSolutions,
1445 :			);
1446 :			}
1447 :
1448 :			my %isInSet;
1449 :			my $setName = $r->param("myset_sets");
1450 :			if ($setName) {
1451 :			# DBFIXME where clause, iterator
1452 :			# DBFIXME maybe instead of hashing here, query when checking source files?
1453 :			# DBFIXME definitely don't need to be making full record objects
1454 :			# DBFIXME SELECT source_file FROM whatever_problem WHERE set_id=? GROUP BY source_file ORDER BY NULL;
1455 :			# DBFIXME (and stick result directly into hash)
1456 :			foreach my $problem ($db->listGlobalProblems($setName)) {
1457 :			my $problemRecord = $db->getGlobalProblem($setName, $problem);
1458 :			$isInSet{$problemRecord->source_file} = 1;
1459 :			}
1460 :			}
1461 :			$self->{isInSet} = \%isInSet;
1462 :	david gage	6492	my $jj;
1463 :	david gage	6487	########## Top part
1464 :	david gage	6492	print '<div id="editor-form">';
1465 :
1466 :	david gage	6487	print CGI::start_form({-method=>"POST", -action=>$r->uri, -name=>'mainform'}),
1467 :	david gage	6492	$self->hidden_authen_fields;
1468 :			print '<div id="mysets">';
1469 :			######### Table of mysets problems
1470 :			$self->make_mysets_row('all_db_sets'=>\@all_db_sets);
1471 :			for ($jj=0; $jj<scalar(@myset_html); $jj++) {
1472 :			$myset_files[$jj] =~ s\|^$ce->{courseDirs}->{templates}/?\|\|;
1473 :			$self->make_myset_data_row($myset_files[$jj+$first_shown], $myset_html[$jj], $jj+1, $self->{past_marks}->[$jj]);
1474 :			}
1475 :			#print CGI::end_table();
1476 :			print '</div>';
1477 :
1478 :			print '<div id="setmaker_library">';
1479 :			#CGI::start_table({-id=>'setmaker_table', -border=>2});
1480 :	david gage	6487	$self->make_top_row('all_db_sets'=>\@all_db_sets,
1481 :			'browse_which'=> $browse_which);
1482 :
1483 :			print CGI::hidden(-name=>'browse_which', -value=>$browse_which,-override=>1),
1484 :			CGI::hidden(-name=>'problem_seed', -value=>$problem_seed, -override=>1);
1485 :			for ($j = 0 ; $j < scalar(@pg_files) ; $j++) {
1486 :			print CGI::hidden(-name=>"all_past_list$j", -value=>$pg_files[$j],-override=>1);
1487 :			}
1488 :
1489 :			print CGI::hidden(-name=>'first_shown', -value=>$first_shown,-override=>1);
1490 :
1491 :			print CGI::hidden(-name=>'last_shown', -value=>$last_shown, -override=>1);
1492 :
1493 :
1494 :			########## Now print problems
1495 :			for ($jj=0; $jj<scalar(@pg_html); $jj++) {
1496 :			$pg_files[$jj] =~ s\|^$ce->{courseDirs}->{templates}/?\|\|;
1497 :			$self->make_data_row($pg_files[$jj+$first_shown], $pg_html[$jj], $jj+1, $self->{past_marks}->[$jj]);
1498 :			#$self->make_data_row($pg_files[$jj+$first_shown], $pg_html[$jj], $jj+1, $self->{past_marks}->[$jj+$first_shown]); #MEG
1499 :			}
1500 :
1501 :			########## Finish things off
1502 :	david gage	6492	#print CGI::end_table();
1503 :	david gage	6487	my ($next_button, $prev_button) = ("", "");
1504 :			if ($first_shown > 0) {
1505 :			$prev_button = CGI::submit(-name=>"prev_page", -style=>"width:15ex",
1506 :			-value=>"Previous page");
1507 :			}
1508 :			if ((1+$last_shown)<scalar(@pg_files)) {
1509 :			$next_button = CGI::submit(-name=>"next_page", -style=>"width:15ex",
1510 :			-value=>"Next page");
1511 :			}
1512 :			if (scalar(@pg_files)>0) {
1513 :			print CGI::p(($first_shown+1)."-".($last_shown+1)." of ".scalar(@pg_files).
1514 :			" shown.", $prev_button, " ", $next_button,
1515 :			CGI::submit(-name=>"update", -style=>"width:15ex; font-weight:bold",
1516 :			-value=>"Update Set"));
1517 :			}
1518 :	david gage	6492	#close library_set
1519 :	david gage	6487	print '</div>';
1520 :	david gage	6492	#close form-editor
1521 :	david gage	6487	print '</div>';
1522 :
1523 :	david gage	6492	print '<div style="clear:both;"></div>';
1524 :	david gage	6487
1525 :
1526 :			# if($first_shown>0 or (1+$last_shown)<scalar(@pg_files)) {
1527 :
1528 :			# }
1529 :			print CGI::endform(), "\n";
1530 :
1531 :			return "";
1532 :			}
1533 :
1534 :			=head1 AUTHOR
1535 :
1536 :			Written by John Jones, jj (at) asu.edu.
1537 :			Edited by David Gage
1538 :
1539 :			=cut
1540 :
1541 :			1;

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