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Original Path: trunk/webwork2/lib/WeBWorK/ContentGenerator/Instructor/SetMaker.pm
| 1 : | jj | 1994 | ################################################################################ |
| 2 : | # WeBWorK Online Homework Delivery System | ||
| 3 : | # Copyright © 2000-2003 The WeBWorK Project, http://openwebwork.sf.net/ | ||
| 4 : | jj | 2152 | # $CVSHeader: webwork-modperl/lib/WeBWorK/ContentGenerator/Instructor/SetMaker.pm,v 1.13 2004/05/22 00:38:44 sh002i Exp $ |
| 5 : | jj | 1994 | # |
| 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::SetMaker; | ||
| 19 : | use base qw(WeBWorK::ContentGenerator::Instructor); | ||
| 20 : | |||
| 21 : | =head1 NAME | ||
| 22 : | |||
| 23 : | WeBWorK::ContentGenerator::Instructor::SetMaker - Make problem sets. | ||
| 24 : | |||
| 25 : | =cut | ||
| 26 : | |||
| 27 : | use strict; | ||
| 28 : | use warnings; | ||
| 29 : | |||
| 30 : | use CGI::Pretty qw(); | ||
| 31 : | use WeBWorK::Form; | ||
| 32 : | use WeBWorK::Utils qw(readDirectory max); | ||
| 33 : | use WeBWorK::Utils::Tasks qw(renderProblems); | ||
| 34 : | |||
| 35 : | require WeBWorK::Utils::ListingDB; | ||
| 36 : | |||
| 37 : | use constant MAX_SHOW => 20; | ||
| 38 : | jj | 2152 | use constant NO_LOCAL_SET_STRING => 'There are no local sets yet'; |
| 39 : | use constant SELECT_SET_STRING => 'Select a Set for This Course'; | ||
| 40 : | use constant SELECT_LOCAL_STRING => 'Select a Local Problem Collection'; | ||
| 41 : | jj | 1994 | |
| 42 : | jj | 2116 | ## Flags for operations on files |
| 43 : | |||
| 44 : | use constant ADDED => 1; | ||
| 45 : | use constant HIDDEN => (1 << 1); | ||
| 46 : | use constant SUCCESS => (1 << 2); | ||
| 47 : | |||
| 48 : | jj | 2039 | ## This is for searching the disk for directories containing pg files. |
| 49 : | jj | 1994 | ## to make the recursion work, this returns an array where the first |
| 50 : | ## item is 1 or 0 depending on whether or not the current | ||
| 51 : | ## directory has any pg files. The second is a list of directories | ||
| 52 : | ## which contain pg files. | ||
| 53 : | sub get_library_sets { | ||
| 54 : | jj | 2024 | my $amtop = shift; |
| 55 : | jj | 1994 | my $topdir = shift; |
| 56 : | my @lis = readDirectory($topdir); | ||
| 57 : | my @pgs = grep { m/\.pg$/ and (not m/Header\.pg/) and -f "$topdir/$_"} @lis; | ||
| 58 : | my $havepg = scalar(@pgs)>0 ? 1 : 0; | ||
| 59 : | my @mdirs = grep {$_ ne "." and $_ ne ".." and $_ ne "Library" | ||
| 60 : | and -d "$topdir/$_"} @lis; | ||
| 61 : | jj | 2024 | if($amtop) { # we don't want the library |
| 62 : | @mdirs = grep {$_ ne "Library"} @mdirs; | ||
| 63 : | } | ||
| 64 : | jj | 1994 | my ($adir, @results, @thisresult); |
| 65 : | for $adir (@mdirs) { | ||
| 66 : | jj | 2024 | @results = get_library_sets(0, "$topdir/$adir"); |
| 67 : | jj | 1994 | my $isadirok = shift @results; |
| 68 : | @thisresult = (@thisresult, @results); | ||
| 69 : | if ($isadirok) { | ||
| 70 : | @thisresult = ("$topdir/$adir", @thisresult); | ||
| 71 : | } | ||
| 72 : | } | ||
| 73 : | return(($havepg, @thisresult)); | ||
| 74 : | } | ||
| 75 : | |||
| 76 : | ## List all the pg files in the requested directory | ||
| 77 : | sub list_pg_files { | ||
| 78 : | my $templatedir = shift; | ||
| 79 : | my $topdir = shift; | ||
| 80 : | |||
| 81 : | my @lis = readDirectory("$templatedir/$topdir"); | ||
| 82 : | my @pgs = grep { m/\.pg$/ and (not m/Header\.pg/) and -f "$templatedir/$topdir/$_"} @lis; | ||
| 83 : | @pgs = map { "$topdir/$_" } @pgs; | ||
| 84 : | return(@pgs); | ||
| 85 : | } | ||
| 86 : | |||
| 87 : | ## go through past page getting a list of identifiers for the problems | ||
| 88 : | ## and whether or not they are selected, and whether or not they should | ||
| 89 : | ## be hidden | ||
| 90 : | |||
| 91 : | sub get_past_problem_files { | ||
| 92 : | my $r = shift; | ||
| 93 : | my @found=(); | ||
| 94 : | my $count =1; | ||
| 95 : | while (defined($r->param("filetrial$count"))) { | ||
| 96 : | jj | 2116 | my $val = 0; |
| 97 : | $val |= ADDED if($r->param("trial$count")); | ||
| 98 : | $val |= HIDDEN if($r->param("hideme$count")); | ||
| 99 : | push @found, [$r->param("filetrial$count"), $val]; | ||
| 100 : | jj | 1994 | $count++; |
| 101 : | } | ||
| 102 : | jj | 2116 | return(\@found); |
| 103 : | jj | 1994 | } |
| 104 : | |||
| 105 : | #### For adding new problems | ||
| 106 : | |||
| 107 : | sub add_selected { | ||
| 108 : | my $self = shift; | ||
| 109 : | my $db = shift; | ||
| 110 : | my $setName = shift; | ||
| 111 : | jj | 2116 | my @past_problems = @{$self->{past_problems}}; |
| 112 : | my @selected = @past_problems; | ||
| 113 : | jj | 1994 | my (@path, $file, $selected, $freeProblemID); |
| 114 : | $freeProblemID = max($db->listGlobalProblems($setName)) + 1; | ||
| 115 : | jj | 2116 | my $addedcount=0; |
| 116 : | jj | 1994 | |
| 117 : | for $selected (@selected) { | ||
| 118 : | jj | 2116 | if($selected->[1] & ADDED) { |
| 119 : | $file = $selected->[0]; | ||
| 120 : | @path = split "/", $selected->[0]; | ||
| 121 : | pop @path; # Remove the file name from the path | ||
| 122 : | shift @path if $path[0] eq ""; # remove the null element from the begining | ||
| 123 : | my $problemRecord = $db->newGlobalProblem(); | ||
| 124 : | $problemRecord->problem_id($freeProblemID++); | ||
| 125 : | $problemRecord->set_id($setName); | ||
| 126 : | $problemRecord->source_file($file); | ||
| 127 : | $problemRecord->value("1"); | ||
| 128 : | $problemRecord->max_attempts("-1"); | ||
| 129 : | $db->addGlobalProblem($problemRecord); | ||
| 130 : | $self->assignProblemToAllSetUsers($problemRecord); | ||
| 131 : | $selected->[1] &= SUCCESS; | ||
| 132 : | $addedcount++; | ||
| 133 : | } | ||
| 134 : | jj | 1994 | } |
| 135 : | jj | 2116 | return($addedcount); |
| 136 : | jj | 1994 | } |
| 137 : | |||
| 138 : | |||
| 139 : | jj | 2039 | ############# List of sets of problems in templates directory |
| 140 : | jj | 1994 | |
| 141 : | jj | 2115 | sub get_problem_directories { |
| 142 : | jj | 1994 | my $ce = shift; |
| 143 : | jj | 2115 | my @all_problem_directories = get_library_sets(1, $ce->{courseDirs}->{templates}); |
| 144 : | my $includetop = shift @all_problem_directories; | ||
| 145 : | jj | 1994 | my $j; |
| 146 : | jj | 2115 | for ($j=0; $j<scalar(@all_problem_directories); $j++) { |
| 147 : | $all_problem_directories[$j] =~ s|^$ce->{courseDirs}->{templates}/?||; | ||
| 148 : | jj | 1994 | } |
| 149 : | jj | 2115 | @all_problem_directories = sort @all_problem_directories; |
| 150 : | unshift @all_problem_directories, ' -- Top -- ' if($includetop); | ||
| 151 : | return (\@all_problem_directories); | ||
| 152 : | jj | 1994 | } |
| 153 : | |||
| 154 : | ### The browsing panel has three versions | ||
| 155 : | ##### Version 1 is local problems | ||
| 156 : | sub browse_local_panel { | ||
| 157 : | my $self = shift; | ||
| 158 : | my $library_selected = shift; | ||
| 159 : | |||
| 160 : | jj | 2115 | my $list_of_prob_dirs= get_problem_directories($self->r->ce); |
| 161 : | if(scalar(@$list_of_prob_dirs) == 0) { | ||
| 162 : | $library_selected = "Found no directories containing problems"; | ||
| 163 : | unshift @{$list_of_prob_dirs}, $library_selected; | ||
| 164 : | } else { | ||
| 165 : | jj | 2152 | my $default_value = SELECT_LOCAL_STRING; |
| 166 : | jj | 2115 | if (not $library_selected or $library_selected eq $default_value) { |
| 167 : | unshift @{$list_of_prob_dirs}, $default_value; | ||
| 168 : | $library_selected = $default_value; | ||
| 169 : | } | ||
| 170 : | jj | 1994 | } |
| 171 : | |||
| 172 : | print CGI::Tr(CGI::td({-class=>"InfoPanel"}, "Local Problems: ", | ||
| 173 : | CGI::popup_menu(-name=> 'library_sets', | ||
| 174 : | jj | 2115 | -values=>$list_of_prob_dirs, |
| 175 : | jj | 1994 | -default=> $library_selected), |
| 176 : | CGI::br(), | ||
| 177 : | CGI::submit(-name=>"view_local_set", -value=>"View Problems"), | ||
| 178 : | )); | ||
| 179 : | } | ||
| 180 : | |||
| 181 : | ##### Version 2 is local problem sets | ||
| 182 : | sub browse_mysets_panel { | ||
| 183 : | my $self = shift; | ||
| 184 : | my $library_selected = shift; | ||
| 185 : | my $list_of_local_sets = shift; | ||
| 186 : | my $default_value = "Select a Problem Set"; | ||
| 187 : | |||
| 188 : | jj | 2024 | if(scalar(@$list_of_local_sets) == 0) { |
| 189 : | jj | 2152 | $list_of_local_sets = [NO_LOCAL_SET_STRING]; |
| 190 : | jj | 2024 | } elsif (not $library_selected or $library_selected eq $default_value) { |
| 191 : | jj | 1994 | unshift @{$list_of_local_sets}, $default_value; |
| 192 : | $library_selected = $default_value; | ||
| 193 : | } | ||
| 194 : | |||
| 195 : | print CGI::Tr(CGI::td({-class=>"InfoPanel"}, "Browse from: ", | ||
| 196 : | CGI::popup_menu(-name=> 'library_sets', | ||
| 197 : | -values=>$list_of_local_sets, | ||
| 198 : | -default=> $library_selected), | ||
| 199 : | CGI::br(), | ||
| 200 : | CGI::submit(-name=>"view_mysets_set", -value=>"View This Set"), | ||
| 201 : | )); | ||
| 202 : | } | ||
| 203 : | |||
| 204 : | ##### Version 3 is the problem library | ||
| 205 : | |||
| 206 : | |||
| 207 : | # There a different levels, and you can pick a new chapter, | ||
| 208 : | # pick a new section, pick all from chapter, pick all from section | ||
| 209 : | # | ||
| 210 : | # Incoming data - current chapter, current section | ||
| 211 : | sub browse_library_panel { | ||
| 212 : | my $self = shift; | ||
| 213 : | my $r = $self->r; | ||
| 214 : | jj | 2039 | my $ce = $r->ce; |
| 215 : | jj | 1994 | |
| 216 : | jj | 2140 | my $libraryRoot = $r->{ce}->{problemLibrary}->{root}; |
| 217 : | jj | 1994 | |
| 218 : | unless($libraryRoot) { | ||
| 219 : | print CGI::Tr(CGI::td(CGI::div({class=>'ResultsWithError', align=>"center"}, | ||
| 220 : | "The problem library has not been installed."))); | ||
| 221 : | return; | ||
| 222 : | } | ||
| 223 : | jj | 2039 | # Test if the Library directory exists. If not, try to make it |
| 224 : | unless(-d "$ce->{courseDirs}->{templates}/Library") { | ||
| 225 : | unless(symlink($libraryRoot, "$ce->{courseDirs}->{templates}/Library")) { | ||
| 226 : | jj | 2115 | my $msg = <<"HERE"; |
| 227 : | jj | 2039 | You are missing the directory <code>templates/Library</code>, which is needed |
| 228 : | for the Problem Library to function. It should be a link pointing to | ||
| 229 : | <code>$libraryRoot</code>, which you set in <code>conf/global.conf</code>. | ||
| 230 : | I tried to make the link for you, but that failed. Check the permissions | ||
| 231 : | in your <code>templates</code> directory. | ||
| 232 : | HERE | ||
| 233 : | jj | 2152 | $self->addbadmessage($msg); |
| 234 : | jj | 2039 | } |
| 235 : | } | ||
| 236 : | jj | 1994 | |
| 237 : | my $default_chap = "All Chapters"; | ||
| 238 : | my $default_sect = "All Sections"; | ||
| 239 : | |||
| 240 : | my @chaps = WeBWorK::Utils::ListingDB::getAllChapters($r->{ce}); | ||
| 241 : | unshift @chaps, $default_chap; | ||
| 242 : | my $chapter_selected = $r->param('library_chapters') || $default_chap; | ||
| 243 : | |||
| 244 : | my @sects=(); | ||
| 245 : | if ($chapter_selected ne $default_chap) { | ||
| 246 : | @sects = WeBWorK::Utils::ListingDB::getAllSections($r->{ce}, $chapter_selected); | ||
| 247 : | } | ||
| 248 : | |||
| 249 : | my @textbooks = ('Textbook info not ready'); | ||
| 250 : | |||
| 251 : | unshift @sects, $default_sect; | ||
| 252 : | my $section_selected = $r->param('library_sections') || $default_sect; | ||
| 253 : | |||
| 254 : | print CGI::Tr(CGI::td({-class=>"InfoPanel"}, | ||
| 255 : | CGI::start_table(), | ||
| 256 : | CGI::Tr( | ||
| 257 : | CGI::td(["Chapter:", | ||
| 258 : | CGI::popup_menu(-name=> 'library_chapters', | ||
| 259 : | -values=>\@chaps, | ||
| 260 : | -default=> $chapter_selected, | ||
| 261 : | -onchange=>"submit();return true" | ||
| 262 : | ), | ||
| 263 : | CGI::submit(-name=>"lib_select_chapter", -value=>"Update Section List")])), | ||
| 264 : | CGI::Tr( | ||
| 265 : | CGI::td("Section:"), | ||
| 266 : | CGI::td({-colspan=>2}, | ||
| 267 : | CGI::popup_menu(-name=> 'library_sections', | ||
| 268 : | -values=>\@sects, | ||
| 269 : | -default=> $section_selected | ||
| 270 : | ))), | ||
| 271 : | |||
| 272 : | jj | 2015 | # CGI::Tr( |
| 273 : | # CGI::td("Textbook:"), | ||
| 274 : | # CGI::td({-colspan=>2}, | ||
| 275 : | # CGI::popup_menu(-name=> 'library_textbooks', | ||
| 276 : | # -values=>\@textbooks, | ||
| 277 : | # # -default=> $section_selected | ||
| 278 : | # ))), | ||
| 279 : | jj | 1994 | |
| 280 : | jj | 2015 | # CGI::Tr( |
| 281 : | # CGI::td("Keywords:"), | ||
| 282 : | # CGI::td({-colspan=>2}, CGI::textfield(-name=>"keywords", | ||
| 283 : | # -default=>"Keywords not implemented yet", | ||
| 284 : | # -override=>1, -size=>60))), | ||
| 285 : | jj | 1994 | CGI::Tr(CGI::td({-colspan=>3},CGI::submit(-name=>"lib_view", -value=>"View Problems"))), |
| 286 : | CGI::end_table(), | ||
| 287 : | )); | ||
| 288 : | } | ||
| 289 : | |||
| 290 : | sub make_top_row { | ||
| 291 : | my $self = shift; | ||
| 292 : | my $r = $self->r; | ||
| 293 : | my %data = @_; | ||
| 294 : | |||
| 295 : | my $list_of_local_sets = $data{all_set_defs}; | ||
| 296 : | jj | 2024 | my $have_local_sets = scalar(@$list_of_local_sets); |
| 297 : | jj | 1994 | my $browse_which = $data{browse_which}; |
| 298 : | my $library_selected = $r->param('library_sets'); | ||
| 299 : | my $set_selected = $r->param('local_sets'); | ||
| 300 : | |||
| 301 : | my ($dis1, $dis2, $dis3) = ("","",""); | ||
| 302 : | $dis1 = '-disabled' if($browse_which eq 'browse_library'); | ||
| 303 : | $dis2 = '-disabled' if($browse_which eq 'browse_local'); | ||
| 304 : | $dis3 = '-disabled' if($browse_which eq 'browse_mysets'); | ||
| 305 : | |||
| 306 : | my $these_widths = "width: 27ex"; | ||
| 307 : | print CGI::Tr(CGI::td({-class=>"InfoPanel", -align=>"center"}, | ||
| 308 : | CGI::submit(-name=>"browse_library", -value=>"Browse Problem Library", -style=>$these_widths, $dis1), | ||
| 309 : | CGI::submit(-name=>"browse_local", -value=>"Browse Local Problems", -style=>$these_widths, $dis2), | ||
| 310 : | CGI::submit(-name=>"browse_mysets", -value=>"Browse From This Course", -style=>$these_widths, $dis3), | ||
| 311 : | )); | ||
| 312 : | |||
| 313 : | print CGI::Tr(CGI::td({-bgcolor=>"black"})); | ||
| 314 : | |||
| 315 : | if ($browse_which eq 'browse_local') { | ||
| 316 : | jj | 2024 | $self->browse_local_panel($library_selected); |
| 317 : | jj | 1994 | } elsif ($browse_which eq 'browse_mysets') { |
| 318 : | jj | 2024 | $self->browse_mysets_panel($library_selected, $list_of_local_sets); |
| 319 : | jj | 1994 | } else { |
| 320 : | jj | 2024 | $self->browse_library_panel(); |
| 321 : | jj | 1994 | } |
| 322 : | |||
| 323 : | print CGI::Tr(CGI::td({-bgcolor=>"black"})); | ||
| 324 : | |||
| 325 : | jj | 2024 | if($have_local_sets ==0) { |
| 326 : | jj | 2152 | $list_of_local_sets = [NO_LOCAL_SET_STRING]; |
| 327 : | } elsif (not $set_selected or $set_selected eq SELECT_SET_STRING) { | ||
| 328 : | jj | 1994 | if ($list_of_local_sets->[0] eq "Select a Problem Set") { |
| 329 : | shift @{$list_of_local_sets}; | ||
| 330 : | } | ||
| 331 : | jj | 2152 | unshift @{$list_of_local_sets}, SELECT_SET_STRING; |
| 332 : | $set_selected = SELECT_SET_STRING; | ||
| 333 : | jj | 1994 | } |
| 334 : | |||
| 335 : | jj | 2152 | print CGI::Tr(CGI::td({-class=>"InfoPanel"}, "Adding Problems to ", |
| 336 : | CGI::b("Current Set: "), | ||
| 337 : | jj | 1994 | CGI::popup_menu(-name=> 'local_sets', |
| 338 : | -values=>$list_of_local_sets, | ||
| 339 : | -default=> $set_selected), | ||
| 340 : | CGI::submit(-name=>"edit_local", -value=>"Edit Current Set"), | ||
| 341 : | CGI::br(), | ||
| 342 : | CGI::br(), | ||
| 343 : | jj | 2152 | CGI::submit(-name=>"new_local_set", -value=>"Create a New Set in This Course:"), |
| 344 : | jj | 1994 | " ", |
| 345 : | CGI::textfield(-name=>"new_set_name", | ||
| 346 : | -default=>"Name for new set here", | ||
| 347 : | -override=>1, -size=>30), | ||
| 348 : | CGI::br(), | ||
| 349 : | )); | ||
| 350 : | |||
| 351 : | print CGI::Tr(CGI::td({-bgcolor=>"black"})); | ||
| 352 : | |||
| 353 : | print CGI::Tr(CGI::td({-class=>"InfoPanel", -align=>"center"}, | ||
| 354 : | CGI::submit(-name=>"update", -style=>$these_widths, | ||
| 355 : | -value=>"Act on Marked Problems"), | ||
| 356 : | CGI::submit(-name=>"rerandomize", | ||
| 357 : | -style=>$these_widths, | ||
| 358 : | -value=>"Rerandomize"), | ||
| 359 : | CGI::submit(-name=>"cleardisplay", | ||
| 360 : | -style=>$these_widths, | ||
| 361 : | -value=>"Clear Problem Display"))); | ||
| 362 : | |||
| 363 : | } | ||
| 364 : | |||
| 365 : | sub make_data_row { | ||
| 366 : | my $self = shift; | ||
| 367 : | my $sourceFileName = shift; | ||
| 368 : | my $pg = shift; | ||
| 369 : | my $cnt = shift; | ||
| 370 : | |||
| 371 : | jj | 2024 | $sourceFileName =~ s|^./||; # clean up top ugliness |
| 372 : | |||
| 373 : | jj | 1994 | my $urlpath = $self->r->urlpath; |
| 374 : | my $problem_output = $pg->{flags}->{error_flag} ? | ||
| 375 : | jj | 2015 | CGI::em("This problem produced an error") |
| 376 : | : CGI::div({class=>"RenderSolo"}, $pg->{body_text}); | ||
| 377 : | jj | 1994 | |
| 378 : | |||
| 379 : | jj | 2024 | my $edit_link = ''; |
| 380 : | jj | 2040 | #if($self->{r}->param('browse_which') ne 'browse_library') { |
| 381 : | if($sourceFileName !~ /^Library\//) { | ||
| 382 : | jj | 2039 | $edit_link = CGI::a({href=>$self->systemLink($urlpath->newFromModule("WeBWorK::ContentGenerator::Instructor::PGProblemEditor", |
| 383 : | courseID =>$urlpath->arg("courseID"), | ||
| 384 : | setID=>"Undefined_Set", | ||
| 385 : | problemID=>"1"), | ||
| 386 : | params=>{sourceFilePath => "$sourceFileName"} | ||
| 387 : | jj | 1994 | )}, "Edit it" ); |
| 388 : | jj | 2024 | } |
| 389 : | jj | 1994 | |
| 390 : | jj | 2039 | my $try_link = CGI::a({href=>$self->systemLink($urlpath->newFromModule("WeBWorK::ContentGenerator::Problem", |
| 391 : | courseID =>$urlpath->arg("courseID"), | ||
| 392 : | setID=>"Undefined_Set", | ||
| 393 : | problemID=>"1"), | ||
| 394 : | jj | 2015 | params =>{effectiveUser => $self->r->param('user'), |
| 395 : | jj | 2021 | editMode => "SetMaker", |
| 396 : | jj | 2015 | sourceFilePath => "$sourceFileName"} )}, "Try it"); |
| 397 : | jj | 1994 | |
| 398 : | |||
| 399 : | |||
| 400 : | print CGI::Tr({-align=>"left"}, CGI::td( | ||
| 401 : | |||
| 402 : | jj | 2024 | CGI::div({-style=>"background-color: #DDDDDD; margin: 0px auto"}, |
| 403 : | CGI::span({-style=>"float:left ; text-align: left"},"File name: $sourceFileName "), | ||
| 404 : | CGI::span({-style=>"float:right ; text-align: right"}, $edit_link, " ", $try_link) | ||
| 405 : | ), CGI::br(), | ||
| 406 : | jj | 1994 | |
| 407 : | |||
| 408 : | |||
| 409 : | |||
| 410 : | CGI::checkbox(-name=>"hideme$cnt",-value=>1,-label=>"Don't show me on the next update"), | ||
| 411 : | CGI::br(), | ||
| 412 : | CGI::checkbox(-name=>"trial$cnt",-value=>1,-label=>"Add me to the current set on the next update"), | ||
| 413 : | CGI::hidden(-name=>"filetrial$cnt", -default=>[$sourceFileName]). | ||
| 414 : | CGI::p($problem_output), | ||
| 415 : | )); | ||
| 416 : | } | ||
| 417 : | |||
| 418 : | |||
| 419 : | jj | 2115 | sub pre_header_initialize { |
| 420 : | jj | 1994 | my ($self) = @_; |
| 421 : | my $r = $self->r; | ||
| 422 : | jj | 2115 | ## For all cases, lets set some things |
| 423 : | $self->{error}=0; | ||
| 424 : | my $ce = $r->ce; | ||
| 425 : | my $db = $r->db; | ||
| 426 : | jj | 1994 | |
| 427 : | jj | 2115 | |
| 428 : | jj | 1994 | my $userName = $r->param('user'); |
| 429 : | jj | 2115 | my $user = $db->getUser($userName); # checked |
| 430 : | die "record for user $userName (real user) does not exist." | ||
| 431 : | jj | 1994 | unless defined $user; |
| 432 : | my $authz = $r->authz; | ||
| 433 : | unless ($authz->hasPermissions($userName, "modify_problem_sets")) { | ||
| 434 : | jj | 2115 | return(""); # Error message already produced in the body |
| 435 : | jj | 1994 | } |
| 436 : | |||
| 437 : | jj | 2115 | ## Now one action we have to deal with here |
| 438 : | if ($r->param('edit_local')) { | ||
| 439 : | my $urlpath = $r->urlpath; | ||
| 440 : | my $db = $r->db; | ||
| 441 : | my $checkset = $db->getGlobalSet($r->param('local_sets')); | ||
| 442 : | if (not defined($checkset)) { | ||
| 443 : | $self->{error} = 1; | ||
| 444 : | jj | 2152 | $self->addbadmessage('You need to select a "Current Set" before you can edit it.'); |
| 445 : | jj | 2115 | } else { |
| 446 : | my $page = $urlpath->newFromModule('WeBWorK::ContentGenerator::Instructor::ProblemSetEditor', setID=>$r->param('local_sets'), courseID=>$urlpath->arg("courseID")); | ||
| 447 : | my $url = $self->systemLink($page); | ||
| 448 : | $self->reply_with_redirect($url); | ||
| 449 : | } | ||
| 450 : | } | ||
| 451 : | jj | 1994 | |
| 452 : | jj | 2115 | ## Next, lots of set up so that errors can be reported with message() |
| 453 : | |||
| 454 : | jj | 1994 | ############# List of problems we have already printed |
| 455 : | |||
| 456 : | jj | 2116 | $self->{past_problems} = get_past_problem_files($r); |
| 457 : | my $none_shown = scalar(@{$self->{past_problems}})==0; | ||
| 458 : | jj | 2115 | my @pg_files=(); |
| 459 : | jj | 1994 | my $use_previous_problems = 1; |
| 460 : | my $first_shown = $r->param('first_shown') || 0; | ||
| 461 : | my $last_shown = $r->param('last_shown'); | ||
| 462 : | if (not defined($last_shown)) { | ||
| 463 : | $last_shown = -1; | ||
| 464 : | } | ||
| 465 : | my @all_past_list = (); # these are include requested, but not shown | ||
| 466 : | jj | 2115 | my $j = 0; |
| 467 : | jj | 1994 | while (defined($r->param("all_past_list$j"))) { |
| 468 : | push @all_past_list, $r->param("all_past_list$j"); | ||
| 469 : | $j++; | ||
| 470 : | } | ||
| 471 : | |||
| 472 : | ############# Default of which problem selector to display | ||
| 473 : | |||
| 474 : | jj | 2115 | my $browse_which = $r->param('browse_which') || 'browse_local'; |
| 475 : | jj | 1994 | |
| 476 : | my $problem_seed = $r->param('problem_seed') || 0; | ||
| 477 : | $r->param('problem_seed', $problem_seed); # if it wasn't defined before | ||
| 478 : | |||
| 479 : | ########### Start the logic through if elsif elsif ... | ||
| 480 : | |||
| 481 : | ##### Asked to browse certain problems | ||
| 482 : | if ($r->param('browse_library')) { | ||
| 483 : | $browse_which = 'browse_library'; | ||
| 484 : | $r->param('library_sets', ""); | ||
| 485 : | } elsif ($r->param('browse_local')) { | ||
| 486 : | $browse_which = 'browse_local'; | ||
| 487 : | $r->param('library_sets', ""); | ||
| 488 : | } elsif ($r->param('browse_mysets')) { | ||
| 489 : | $browse_which = 'browse_mysets'; | ||
| 490 : | $r->param('library_sets', ""); | ||
| 491 : | |||
| 492 : | ##### Change the seed value | ||
| 493 : | |||
| 494 : | } elsif ($r->param('rerandomize')) { | ||
| 495 : | $problem_seed++; | ||
| 496 : | $r->param('problem_seed', $problem_seed); | ||
| 497 : | jj | 2152 | $self->addbadmessage('Changing the problem seed for display, but there are no problems showing.') if $none_shown; |
| 498 : | jj | 1994 | |
| 499 : | ##### Clear the display | ||
| 500 : | |||
| 501 : | } elsif ($r->param('cleardisplay')) { | ||
| 502 : | @pg_files = (); | ||
| 503 : | $use_previous_problems=0; | ||
| 504 : | jj | 2152 | $self->addbadmessage('The display was already cleared.') if $none_shown; |
| 505 : | jj | 1994 | |
| 506 : | ##### View problems selected from the local list | ||
| 507 : | |||
| 508 : | } elsif ($r->param('view_local_set')) { | ||
| 509 : | |||
| 510 : | my $set_to_display = $r->param('library_sets'); | ||
| 511 : | jj | 2152 | if (not defined($set_to_display) or $set_to_display eq SELECT_LOCAL_STRING or $set_to_display eq "Found no directories containing problems") { |
| 512 : | $self->addbadmessage('You need to select a set to view.'); | ||
| 513 : | jj | 1994 | } else { |
| 514 : | jj | 2024 | $set_to_display = '.' if $set_to_display eq ' -- Top -- '; |
| 515 : | jj | 1994 | @pg_files = list_pg_files($ce->{courseDirs}->{templates}, |
| 516 : | "$set_to_display"); | ||
| 517 : | $use_previous_problems=0; | ||
| 518 : | } | ||
| 519 : | |||
| 520 : | ##### View problems selected from the a set in this course | ||
| 521 : | |||
| 522 : | } elsif ($r->param('view_mysets_set')) { | ||
| 523 : | |||
| 524 : | my $set_to_display = $r->param('library_sets'); | ||
| 525 : | jj | 2024 | if (not defined($set_to_display) |
| 526 : | or $set_to_display eq "Select a Problem Set" | ||
| 527 : | jj | 2152 | or $set_to_display eq NO_LOCAL_SET_STRING) { |
| 528 : | $self->addbadmessage("You need to select a set from this course to view."); | ||
| 529 : | jj | 1994 | } else { |
| 530 : | my @problemList = $db->listGlobalProblems($set_to_display); | ||
| 531 : | my $problem; | ||
| 532 : | @pg_files=(); | ||
| 533 : | for $problem (@problemList) { | ||
| 534 : | my $problemRecord = $db->getGlobalProblem($set_to_display, $problem); # checked | ||
| 535 : | die "global $problem for set $set_to_display not found." unless | ||
| 536 : | $problemRecord; | ||
| 537 : | push @pg_files, $problemRecord->source_file; | ||
| 538 : | |||
| 539 : | } | ||
| 540 : | $use_previous_problems=0; | ||
| 541 : | } | ||
| 542 : | |||
| 543 : | ##### View whole chapter from the library | ||
| 544 : | ## This will change somewhat later | ||
| 545 : | |||
| 546 : | } elsif ($r->param('lib_view')) { | ||
| 547 : | |||
| 548 : | @pg_files=(); | ||
| 549 : | my $chap = $r->param('library_chapters') || ""; | ||
| 550 : | $chap = "" if($chap eq "All Chapters"); | ||
| 551 : | my $sect = $r->param('library_sections') || ""; | ||
| 552 : | $sect = "" if($sect eq "All Sections"); | ||
| 553 : | my @dbsearch = WeBWorK::Utils::ListingDB::getSectionListings($r->{ce}, "$chap", "$sect"); | ||
| 554 : | my ($result, $tolibpath); | ||
| 555 : | for $result (@dbsearch) { | ||
| 556 : | jj | 2002 | $tolibpath = "Library/$result->{path}/$result->{filename}"; |
| 557 : | jj | 1994 | |
| 558 : | ## Too clunky!!!! | ||
| 559 : | push @pg_files, $tolibpath; | ||
| 560 : | } | ||
| 561 : | $use_previous_problems=0; | ||
| 562 : | |||
| 563 : | ##### Edit the current local problem set | ||
| 564 : | |||
| 565 : | } elsif ($r->param('edit_local')) { ## Jump to set edit page | ||
| 566 : | |||
| 567 : | jj | 2115 | ; # already handled |
| 568 : | |||
| 569 : | |||
| 570 : | jj | 1994 | ##### Make a new local problem set |
| 571 : | |||
| 572 : | } elsif ($r->param('new_local_set')) { | ||
| 573 : | if ($r->param('new_set_name') !~ /^[\w.-]*$/) { | ||
| 574 : | jj | 2152 | $self->addbadmessage("The name ".$r->param('new_set_name')." is not a valid set name. Use only letters, digits, -, _, and ."); |
| 575 : | jj | 1994 | } else { |
| 576 : | my $newSetName = $r->param('new_set_name'); | ||
| 577 : | $newSetName =~ s/^set//; | ||
| 578 : | $newSetName =~ s/\.def$//; | ||
| 579 : | jj | 2112 | $r->param('local_sets',$newSetName); |
| 580 : | jj | 1994 | my $newSetRecord = $db->getGlobalSet($newSetName); |
| 581 : | if (defined($newSetRecord)) { | ||
| 582 : | jj | 2152 | $self->addbadmessage("The set name $newSetName is already in use. Pick a different name if you would like to start a new set."); |
| 583 : | jj | 1994 | } else { # Do it! |
| 584 : | $newSetRecord = $db->{set}->{record}->new(); | ||
| 585 : | $newSetRecord->set_id($newSetName); | ||
| 586 : | $newSetRecord->set_header(""); | ||
| 587 : | $newSetRecord->problem_header(""); | ||
| 588 : | $newSetRecord->open_date(time()+60*60*24*7); # in one week | ||
| 589 : | $newSetRecord->due_date(time()+60*60*24*7*2); # in two weeks | ||
| 590 : | $newSetRecord->answer_date(time()+60*60*24*7*3); # in three weeks | ||
| 591 : | eval {$db->addGlobalSet($newSetRecord)}; | ||
| 592 : | } | ||
| 593 : | } | ||
| 594 : | |||
| 595 : | ##### Add selected problems to the current local set | ||
| 596 : | |||
| 597 : | } elsif ($r->param('update')) { | ||
| 598 : | ## first handle problems to be added before we hide them | ||
| 599 : | my($localSet, @selected); | ||
| 600 : | |||
| 601 : | jj | 2116 | @pg_files = grep {($_->[1] & ADDED) != 0 } @{$self->{past_problems}}; |
| 602 : | jj | 1994 | @selected = map {$_->[0]} @pg_files; |
| 603 : | |||
| 604 : | jj | 2116 | my @action_files = grep {$_->[1] > 0 } @{$self->{past_problems}}; |
| 605 : | if(scalar(@action_files) == 0) { | ||
| 606 : | jj | 2152 | $self->addbadmessage('Act on marked problems requested, but no problems were marked.'); |
| 607 : | jj | 2116 | } |
| 608 : | |||
| 609 : | jj | 1994 | if (scalar(@selected)>0) { # if some are to be added, they need a place to go |
| 610 : | $localSet = $r->param('local_sets'); | ||
| 611 : | jj | 2152 | if (not defined($localSet) or |
| 612 : | $localSet eq SELECT_SET_STRING or | ||
| 613 : | $localSet eq NO_LOCAL_SET_STRING) { | ||
| 614 : | $self->addbadmessage('You are trying to add problems to something, but you did not select a "Current Set" name as a target.'); | ||
| 615 : | jj | 1994 | } else { |
| 616 : | my $newSetRecord = $db->getGlobalSet($localSet); | ||
| 617 : | if (not defined($newSetRecord)) { | ||
| 618 : | jj | 2152 | $self->addbadmessage("You are trying to add problems to $localSet, but that set does not seem to exist! I bet you used your \"Back\" button."); |
| 619 : | jj | 1994 | } else { |
| 620 : | jj | 2116 | my $addcount = add_selected($self, $db, $localSet); |
| 621 : | if($addcount > 0) { | ||
| 622 : | jj | 2152 | $self->addgoodmessage("Added $addcount problem".(($addcount>1)?'s':''). |
| 623 : | jj | 2116 | " to $localSet."); |
| 624 : | } | ||
| 625 : | jj | 1994 | } |
| 626 : | } | ||
| 627 : | } | ||
| 628 : | ## now handle problems to be hidden | ||
| 629 : | |||
| 630 : | jj | 2116 | ## only keep the ones which are not hidden |
| 631 : | @pg_files = grep {($_->[1] & HIDDEN) ==0 } @{$self->{past_problems}}; | ||
| 632 : | jj | 1994 | @pg_files = map {$_->[0]} @pg_files; |
| 633 : | @all_past_list = (@all_past_list[0..($first_shown-1)], | ||
| 634 : | @pg_files, | ||
| 635 : | @all_past_list[($last_shown+1)..(scalar(@all_past_list)-1)]); | ||
| 636 : | $last_shown = $first_shown+MAX_SHOW -1; | ||
| 637 : | $last_shown = (scalar(@all_past_list)-1) if($last_shown>=scalar(@all_past_list)); | ||
| 638 : | |||
| 639 : | ## FIXME: you should say something if no problems are selected | ||
| 640 : | ## maybe the add button should be disabled if there are no problems | ||
| 641 : | ## showing | ||
| 642 : | |||
| 643 : | |||
| 644 : | } elsif ($r->param('next_page')) { | ||
| 645 : | $first_shown = $last_shown+1; | ||
| 646 : | $last_shown = $first_shown+MAX_SHOW-1; | ||
| 647 : | $last_shown = (scalar(@all_past_list)-1) if($last_shown>=scalar(@all_past_list)); | ||
| 648 : | } elsif ($r->param('prev_page')) { | ||
| 649 : | $last_shown = $first_shown-1; | ||
| 650 : | $first_shown = $last_shown - MAX_SHOW+1; | ||
| 651 : | |||
| 652 : | $first_shown = 0 if($first_shown<0); | ||
| 653 : | |||
| 654 : | ##### No action requested, probably our first time here | ||
| 655 : | |||
| 656 : | } else { | ||
| 657 : | #my $c = $r->connection; | ||
| 658 : | #print "Debug info: ". $r->get_remote_host ."<p>". $c->remote_ip ; | ||
| 659 : | ; | ||
| 660 : | } ##### end of the if elsif ... | ||
| 661 : | |||
| 662 : | |||
| 663 : | ############# List of local sets | ||
| 664 : | |||
| 665 : | jj | 2024 | my @all_set_defs = $db->listGlobalSets; |
| 666 : | jj | 1994 | for ($j=0; $j<scalar(@all_set_defs); $j++) { |
| 667 : | $all_set_defs[$j] =~ s|^set||; | ||
| 668 : | $all_set_defs[$j] =~ s|\.def||; | ||
| 669 : | } | ||
| 670 : | |||
| 671 : | if ($use_previous_problems) { | ||
| 672 : | @pg_files = @all_past_list; | ||
| 673 : | } else { | ||
| 674 : | $first_shown = 0; | ||
| 675 : | $last_shown = scalar(@pg_files)<MAX_SHOW ? scalar(@pg_files) : MAX_SHOW; | ||
| 676 : | $last_shown--; # to make it an array index | ||
| 677 : | } | ||
| 678 : | jj | 2115 | ############# Now store data in self for retreival by body |
| 679 : | $self->{first_shown} = $first_shown; | ||
| 680 : | $self->{last_shown} = $last_shown; | ||
| 681 : | $self->{browse_which} = $browse_which; | ||
| 682 : | $self->{problem_seed} = $problem_seed; | ||
| 683 : | $self->{pg_files} = \@pg_files; | ||
| 684 : | $self->{all_set_defs} = \@all_set_defs; | ||
| 685 : | jj | 1994 | |
| 686 : | jj | 2115 | } |
| 687 : | |||
| 688 : | |||
| 689 : | sub title { | ||
| 690 : | return "Problem Set Maker"; | ||
| 691 : | } | ||
| 692 : | |||
| 693 : | sub body { | ||
| 694 : | my ($self) = @_; | ||
| 695 : | |||
| 696 : | my $r = $self->r; | ||
| 697 : | my $ce = $r->ce; # course environment | ||
| 698 : | my $db = $r->db; # database | ||
| 699 : | my $j; # garden variety counter | ||
| 700 : | |||
| 701 : | my $userName = $r->param('user'); | ||
| 702 : | |||
| 703 : | my $user = $db->getUser($userName); # checked | ||
| 704 : | die "record for user $userName (real user) does not exist." | ||
| 705 : | unless defined $user; | ||
| 706 : | |||
| 707 : | ### Check that this is a professor | ||
| 708 : | my $authz = $r->authz; | ||
| 709 : | unless ($authz->hasPermissions($userName, "modify_problem_sets")) { | ||
| 710 : | print "User $userName returned " . | ||
| 711 : | $authz->hasPermissions($user, "modify_problem_sets") . | ||
| 712 : | " for permission"; | ||
| 713 : | return(CGI::div({class=>'ResultsWithError'}, | ||
| 714 : | CGI::em("You are not authorized to access the Instructor tools."))); | ||
| 715 : | } | ||
| 716 : | |||
| 717 : | ########## Extract information computed in pre_header_initialize | ||
| 718 : | |||
| 719 : | my $first_shown = $self->{first_shown}; | ||
| 720 : | my $last_shown = $self->{last_shown}; | ||
| 721 : | my $browse_which = $self->{browse_which}; | ||
| 722 : | my $problem_seed = $self->{problem_seed}; | ||
| 723 : | my @pg_files = @{$self->{pg_files}}; | ||
| 724 : | my @all_set_defs = @{$self->{all_set_defs}}; | ||
| 725 : | |||
| 726 : | my @pg_html=($last_shown>=$first_shown) ? | ||
| 727 : | jj | 1994 | renderProblems($r,$user, @pg_files[$first_shown..$last_shown]) : (); |
| 728 : | |||
| 729 : | ########## Top part | ||
| 730 : | print CGI::startform({-method=>"POST", -action=>$r->uri}), | ||
| 731 : | $self->hidden_authen_fields, | ||
| 732 : | '<div align="center">', | ||
| 733 : | CGI::start_table({-border=>2}); | ||
| 734 : | jj | 2024 | $self->make_top_row('all_set_defs'=>\@all_set_defs, |
| 735 : | jj | 1994 | 'browse_which'=> $browse_which); |
| 736 : | print CGI::hidden(-name=>'browse_which', -default=>[$browse_which]), | ||
| 737 : | CGI::hidden(-name=>'problem_seed', -default=>[$problem_seed]); | ||
| 738 : | for ($j = 0 ; $j < scalar(@pg_files) ; $j++) { | ||
| 739 : | print CGI::hidden(-name=>"all_past_list$j", -default=>$pg_files[$j]); | ||
| 740 : | } | ||
| 741 : | |||
| 742 : | print CGI::hidden(-name=>'first_shown', -default=>[$first_shown]); | ||
| 743 : | print CGI::hidden(-name=>'last_shown', -default=>[$last_shown]); | ||
| 744 : | |||
| 745 : | |||
| 746 : | ########## Now print problems | ||
| 747 : | my $jj; | ||
| 748 : | for ($jj=0; $jj<scalar(@pg_html); $jj++) { | ||
| 749 : | $pg_files[$jj] =~ s|^$ce->{courseDirs}->{templates}/?||; | ||
| 750 : | jj | 2024 | $self->make_data_row($pg_files[$jj+$first_shown], $pg_html[$jj], $jj+1); |
| 751 : | jj | 1994 | } |
| 752 : | |||
| 753 : | ########## Finish things off | ||
| 754 : | print CGI::end_table(); | ||
| 755 : | print '</div>'; | ||
| 756 : | # if($first_shown>0 or (1+$last_shown)<scalar(@pg_files)) { | ||
| 757 : | my ($next_button, $prev_button) = ("", ""); | ||
| 758 : | if ($first_shown > 0) { | ||
| 759 : | $prev_button = CGI::submit(-name=>"prev_page", -style=>"width:15ex", | ||
| 760 : | -value=>"Previous page"); | ||
| 761 : | } | ||
| 762 : | if ((1+$last_shown)<scalar(@pg_files)) { | ||
| 763 : | $next_button = CGI::submit(-name=>"next_page", -style=>"width:15ex", | ||
| 764 : | -value=>"Next page"); | ||
| 765 : | } | ||
| 766 : | if (scalar(@pg_files)>0) { | ||
| 767 : | print CGI::p(($first_shown+1)."-".($last_shown+1)." of ".scalar(@pg_files). | ||
| 768 : | " shown.", $prev_button, " ", $next_button); | ||
| 769 : | } | ||
| 770 : | # } | ||
| 771 : | print CGI::endform(), "\n"; | ||
| 772 : | |||
| 773 : | return ""; | ||
| 774 : | } | ||
| 775 : | |||
| 776 : | ############################################## End of Body | ||
| 777 : | |||
| 778 : | # SKEL: To emit your own HTTP header, uncomment this: | ||
| 779 : | # | ||
| 780 : | #sub header { | ||
| 781 : | # my ($self) = @_; | ||
| 782 : | # | ||
| 783 : | # # Generate your HTTP header here. | ||
| 784 : | # | ||
| 785 : | # # If you return something, it will be used as the HTTP status code for this | ||
| 786 : | # # request. The Apache::Constants module might be useful for gerating status | ||
| 787 : | # # codes. If you don't return anything, the status code "OK" will be used. | ||
| 788 : | # return ""; | ||
| 789 : | #} | ||
| 790 : | |||
| 791 : | # SKEL: If you need to do any processing after the HTTP header is sent, but before | ||
| 792 : | # any template processing occurs, or you need to calculate values that will be | ||
| 793 : | # used in multiple methods, do it in this method: | ||
| 794 : | # | ||
| 795 : | #sub initialize { | ||
| 796 : | #my ($self) = @_; | ||
| 797 : | #} | ||
| 798 : | |||
| 799 : | # SKEL: If you need to add tags to the document <HEAD>, uncomment this method: | ||
| 800 : | # | ||
| 801 : | #sub head { | ||
| 802 : | # my ($self) = @_; | ||
| 803 : | # | ||
| 804 : | # # You can print head tags here, like <META>, <SCRIPT>, etc. | ||
| 805 : | # | ||
| 806 : | # return ""; | ||
| 807 : | #} | ||
| 808 : | |||
| 809 : | # SKEL: To fill in the "info" box (to the right of the main body), use this | ||
| 810 : | # method: | ||
| 811 : | # | ||
| 812 : | #sub info { | ||
| 813 : | # my ($self) = @_; | ||
| 814 : | # | ||
| 815 : | # # Print HTML here. | ||
| 816 : | # | ||
| 817 : | # return ""; | ||
| 818 : | #} | ||
| 819 : | |||
| 820 : | # SKEL: To provide navigation links, use this method: | ||
| 821 : | # | ||
| 822 : | #sub nav { | ||
| 823 : | # my ($self, $args) = @_; | ||
| 824 : | # | ||
| 825 : | # # See the documentation of path() and pathMacro() in | ||
| 826 : | # # WeBWorK::ContentGenerator for more information. | ||
| 827 : | # | ||
| 828 : | # return ""; | ||
| 829 : | #} | ||
| 830 : | |||
| 831 : | # SKEL: For a little box for display options, etc., use this method: | ||
| 832 : | # | ||
| 833 : | #sub options { | ||
| 834 : | # my ($self) = @_; | ||
| 835 : | # | ||
| 836 : | # # Print HTML here. | ||
| 837 : | # | ||
| 838 : | # return ""; | ||
| 839 : | #} | ||
| 840 : | |||
| 841 : | # SKEL: For a list of sibling objects, use this method: | ||
| 842 : | # | ||
| 843 : | #sub siblings { | ||
| 844 : | # my ($self, $args) = @_; | ||
| 845 : | # | ||
| 846 : | # # See the documentation of siblings() and siblingsMacro() in | ||
| 847 : | # # WeBWorK::ContentGenerator for more information. | ||
| 848 : | # # | ||
| 849 : | # # Refer to implementations in ProblemSet and Problem. | ||
| 850 : | # | ||
| 851 : | # return ""; | ||
| 852 : | #} | ||
| 853 : | |||
| 854 : | =head1 AUTHOR | ||
| 855 : | |||
| 856 : | Written by John Jones, jj (at) asu.edu. | ||
| 857 : | |||
| 858 : | =cut | ||
| 859 : | |||
| 860 : | |||
| 861 : | |||
| 862 : | 1; |
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