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Make it so that by default, practice users don't see saved answers. That can be controlled in global.conf.dist. Also, default to not showing saved answers after the due date. In all cases, the Apply options button can adjust what you want. Also fixed a bug with showOldAnswers related to '', 0, and undef being similar in perl.
1 #!perl 2 ################################################################################ 3 # WeBWorK Online Homework Delivery System 4 # Copyright © 2000-2003 The WeBWorK Project, http://openwebwork.sf.net/ 5 # $CVSHeader: webwork-modperl/conf/global.conf.dist,v 1.129 2005/08/23 22:53:25 jj Exp $ 6 # 7 # This program is free software; you can redistribute it and/or modify it under 8 # the terms of either: (a) the GNU General Public License as published by the 9 # Free Software Foundation; either version 2, or (at your option) any later 10 # version, or (b) the "Artistic License" which comes with this package. 11 # 12 # This program is distributed in the hope that it will be useful, but WITHOUT 13 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 14 # FOR A PARTICULAR PURPOSE. See either the GNU General Public License or the 15 # Artistic License for more details. 16 ################################################################################ 17 18 # This file is used to set up the default WeBWorK course environment for all 19 # requests. Values may be overwritten by the course.conf for a specific course. 20 # All package variables set in this file are added to the course environment. 21 # If you wish to set a variable here but omit it from the course environment, 22 # use the "my" keyword. The $webwork_dir variable is set in the WeBWorK Apache 23 # configuration file (webwork.apache-config) and is available for use here. In 24 # addition, the $courseName variable holds the name of the current course. 25 26 ################################################################################ 27 # Seed variables 28 ################################################################################ 29 30 # Set these variables to correspond to your configuration and preferences. You 31 # will need to restart the webserver to reset the variables in this section. 32 33 # URL of WeBWorK handler. 34 $webwork_url = "/webwork2"; 35 36 # Root directory of PG. 37 $pg_dir = "/opt/pg"; 38 39 # URL and path to htdocs directory. 40 $webwork_htdocs_url = "/webwork2_files"; 41 $webwork_htdocs_dir = "$webwork_dir/htdocs"; 42 43 # URL and path to courses directory. 44 $webwork_courses_url = "/webwork2_course_files"; 45 $webwork_courses_dir = "$webwork_dir/courses"; 46 47 ################################################################################ 48 # Paths to external programs 49 ################################################################################ 50 51 $externalPrograms{mkdir} = "/bin/mkdir"; 52 $externalPrograms{mv} = "/bin/mv"; 53 $externalPrograms{mysql} = "/usr/bin/mysql"; 54 55 $externalPrograms{latex} = "/usr/bin/latex"; 56 $externalPrograms{pdflatex} = "/usr/bin/pdflatex --shell-escape"; # allows pdflatex to handle .eps files 57 $externalPrograms{dvipng} = "/usr/bin/dvipng"; 58 $externalPrograms{tth} = "/usr/bin/tth"; 59 60 $externalPrograms{tar} = "/usr/bin/tar"; 61 62 # Basic image manipulation utilities 63 # Most sites only need to configure the first line 64 $externalPrograms{netpbm} = "/usr/bin/"; # Really a prefix, rather than a program 65 $externalPrograms{giftopnm} = $externalPrograms{netpbm}.'giftopnm'; 66 $externalPrograms{ppmtopgm} = $externalPrograms{netpbm}.'ppmtopgm'; 67 $externalPrograms{pnmtops} = $externalPrograms{netpbm}.'pnmtops'; 68 $externalPrograms{pnmtopng} = $externalPrograms{netpbm}.'pnmtopng'; 69 $externalPrograms{pngtopnm} = $externalPrograms{netpbm}.'pngtopnm'; 70 71 # The following lines are the external scripts gif2eps, etc. 72 # The source file is input with cat, and the output is redirected to 73 # the desired file. 74 75 $externalPrograms{gif2eps} = "$externalPrograms{giftopnm} | $externalPrograms{ppmtopgm}| $externalPrograms{pnmtops} -noturn 2>/dev/null"; 76 $externalPrograms{png2eps} = "$externalPrograms{pngtopnm} | $externalPrograms{ppmtopgm} | $externalPrograms{pnmtops} -noturn 2>/dev/null"; 77 $externalPrograms{gif2png} = "$externalPrograms{giftopnm} | $externalPrograms{pnmtopng}"; 78 79 # Note on these conversions: 80 # we used to use `pnmdepth 1' instead of ppmtopgm as it creates a 81 # monochrome image (1 bit) rather than a greyscale image (8 bits). 82 # However, this was causing improper display of some sort in PDFs. 83 84 85 ################################################################################ 86 # Mail settings 87 ################################################################################ 88 89 # Mail sent by the PG system and the mail merge and feedback modules will be 90 # sent via this SMTP server. 91 $mail{smtpServer} = 'mail.yourschool.edu'; 92 93 # When connecting to the above server, WeBWorK will send this address in the 94 # MAIL FROM command. This has nothing to do with the "From" address on the mail 95 # message. It can really be anything, but some mail servers require it contain 96 # a valid mail domain, or at least be well-formed. 97 $mail{smtpSender} = 'webwork@yourserver.yourschool.edu'; 98 99 # AllowedRecipients defines addresses that the PG system is allowed to send mail 100 # to. this prevents subtle PG exploits. This should be set in course.conf to the 101 # addresses of professors of each course. Sending mail from the PG system (i.e. 102 # questionaires, essay questions) will fail if this is not set somewhere (either 103 # here or in course.conf). 104 $mail{allowedRecipients} = [ 105 #'prof1@yourserver.yourdomain.edu', 106 #'prof2@yourserver.yourdomain.edu', 107 ]; 108 109 # If defined, feedbackRecipients overrides the list of recipients for feedback 110 # email. It's appropriate to set this in the course.conf for specific courses, 111 # but probably not in global.conf. if not defined, mail is sent to all 112 # professors and TAs for a given course 113 #$mail{feedbackRecipients} = [ 114 # 'prof1@yourserver.yourdomain.edu', 115 # 'prof2@yourserver.yourdomain.edu', 116 #]; 117 118 # feedbackVerbosity: 119 # 0: send only the feedback comment and context link 120 # 1: as in 0, plus user, set, problem, and PG data 121 # 2: as in 1, plus the problem environment (debugging data) 122 $mail{feedbackVerbosity} = 1; 123 124 # Defines the size of the Mail Merge editor window 125 # FIXME: should this be here? it's UI, not mail 126 # FIXME: replace this with the auto-size method that TWiki uses 127 $mail{editor_window_rows} = 15; 128 $mail{editor_window_columns} = 100; 129 130 ################################################################################ 131 # System-wide locations (directories and URLs) 132 ################################################################################ 133 134 # The root directory, set by webwork_root variable in Apache configuration. 135 $webworkDirs{root} = "$webwork_dir"; 136 137 # Location of system-wide data files. 138 $webworkDirs{DATA} = "$webworkDirs{root}/DATA"; 139 140 # Used for temporary storage of uploaded files. 141 $webworkDirs{uploadCache} = "$webworkDirs{DATA}/uploads"; 142 143 # Location of utility programs. 144 $webworkDirs{bin} = "$webworkDirs{root}/bin"; 145 146 # Location of configuration files, templates, snippets, etc. 147 $webworkDirs{conf} = "$webworkDirs{root}/conf"; 148 149 # Location of course directories. 150 $webworkDirs{courses} = "$webwork_courses_dir" || "$webworkDirs{root}/courses"; 151 152 # Contains log files. 153 $webworkDirs{logs} = "$webworkDirs{root}/logs"; 154 155 # Contains non-web-accessible temporary files, such as TeX working directories. 156 $webworkDirs{tmp} = "$webworkDirs{root}/tmp"; 157 158 # The (absolute) destinations of symbolic links that are OK for the FileManager to follow. 159 # (any subdirectory of these is a valid target for a symbolic link.) 160 # For example: 161 # $webworkDirs{valid_symlinks} = ["$webworkDirs{courses}/modelCourse/templates","/ww2/common/sets"]; 162 $webworkDirs{valid_symlinks} = []; 163 164 ##### The following locations are web-accessible. 165 166 # The root URL (usually /webwork2), set by <Location> in Apache configuration. 167 $webworkURLs{root} = "$webwork_url"; 168 169 # Location of system-wide web-accessible files, such as equation images, and 170 # help files. 171 $webworkDirs{htdocs} = "$webwork_htdocs_dir" || "$webworkDirs{root}/htdocs"; 172 $webworkURLs{htdocs} = "$webwork_htdocs_url"; 173 174 # Location of web-accessible temporary files, such as equation images. 175 $webworkDirs{htdocs_temp} = "$webworkDirs{htdocs}/tmp"; 176 $webworkURLs{htdocs_temp} = "$webworkURLs{htdocs}/tmp"; 177 178 # Location of cached equation images. 179 $webworkDirs{equationCache} = "$webworkDirs{htdocs_temp}/equations"; 180 $webworkURLs{equationCache} = "$webworkURLs{htdocs_temp}/equations"; 181 182 # Contains context-sensitive help files. 183 $webworkDirs{local_help} = "$webworkDirs{htdocs}/helpFiles"; 184 $webworkURLs{local_help} = "$webworkURLs{htdocs}/helpFiles"; 185 186 # URL of general WeBWorK documentation. 187 $webworkURLs{docs} = "http://webhost.math.rochester.edu/webworkdocs/docs"; 188 189 # URL of WeBWorK 1.x profLogin.pl script, for access to old professor pages. 190 # Note that both systems must share a single "courses" directory for this to be 191 # useful. Leave this blank to disable 192 $webworkURLs{oldProf} = "/webwork1/profLogin.pl"; 193 194 # URL of WeBWorK Bugzilla database. 195 $webworkURLs{bugReporter} = "http://bugs.webwork.rochester.edu/"; 196 197 # Location of CSS 198 $webworkURLs{stylesheet} = "$webworkURLs{htdocs}/css/ur.css"; 199 200 # Location of jsMath script, used for the jsMath display mode. 201 $webworkURLs{jsMath} = "$webworkURLs{htdocs}/jsMath/jsMath-ww.js"; 202 203 # Location of ASCIIMathML script, used for the asciimath display mode. 204 $webworkURLs{asciimath} = "$webworkURLs{htdocs}/ASCIIMathML/ASCIIMathML.js"; 205 206 ################################################################################ 207 # Defaults for course-specific locations (directories and URLs) 208 ################################################################################ 209 210 # The root directory of the current course. (The ID of the current course is 211 # available in $courseName.) 212 $courseDirs{root} = "$webworkDirs{courses}/$courseName"; 213 214 # Location of course-specific data files, such as WW1 (GDBM) database files. 215 $courseDirs{DATA} = "$courseDirs{root}/DATA"; 216 217 # Location of authentication data files when using a WW1 (GDBM) database. 218 $courseDirs{auth_DATA} = "$courseDirs{DATA}/.auth"; 219 220 # Location of course HTML files, passed to PG. 221 $courseDirs{html} = "$courseDirs{root}/html"; 222 $courseURLs{html} = "$webwork_courses_url/$courseName"; 223 224 # Location of course image files, passed to PG. 225 $courseDirs{html_images} = "$courseDirs{html}/images"; 226 227 # Location of web-accessible, course-specific temporary files, like static and 228 # dynamically-generated PG graphics. 229 $courseDirs{html_temp} = "$courseDirs{html}/tmp"; 230 $courseURLs{html_temp} = "$courseURLs{html}/tmp"; 231 232 # Location of course-specific logs, like the transaction log. 233 $courseDirs{logs} = "$courseDirs{root}/logs"; 234 235 # Location of scoring files. 236 $courseDirs{scoring} = "$courseDirs{root}/scoring"; 237 238 # Location of PG templates and set definition files. 239 $courseDirs{templates} = "$courseDirs{root}/templates"; 240 241 # Location of course-specific macro files. 242 $courseDirs{macros} = "$courseDirs{templates}/macros"; 243 244 # Location of mail-merge templates. 245 $courseDirs{email} = "$courseDirs{templates}/email"; 246 247 ################################################################################ 248 # System-wide files 249 ################################################################################ 250 251 # Location of this file. 252 $webworkFiles{environment} = "$webworkDirs{conf}/global.conf"; 253 254 # Flat-file database used to protect against MD5 hash collisions. TeX equations 255 # are hashed to determine the name of the image file. There is a tiny chance of 256 # a collision between two TeX strings. This file allows for that. However, this 257 # is slow, so most people chose not to worry about it. Set this to "" if you 258 # don't want to use the equation cache file. 259 $webworkFiles{equationCacheDB} = ""; # "$webworkDirs{DATA}/equationcache"; 260 261 ##### Hardcopy snippets are used in constructing a TeX file for hardcopy output. 262 ##### They should contain TeX code unless otherwise noted. 263 264 # The preamble is the first thing in the TeX file. 265 $webworkFiles{hardcopySnippets}{preamble} = "$webworkDirs{conf}/snippets/hardcopyPreamble.tex"; 266 267 # The setHeader preceeds each set. It is a PG file. 268 $webworkFiles{hardcopySnippets}{setHeader} = "$webworkDirs{conf}/snippets/setHeader.pg"; # hardcopySetHeader.pg", 269 270 # The problem divider goes between problems. 271 $webworkFiles{hardcopySnippets}{problemDivider} = "$webworkDirs{conf}/snippets/hardcopyProblemDivider.tex"; 272 273 # The set footer goes after each set. Is is a PG file. 274 $webworkFiles{hardcopySnippets}{setFooter} = "$webworkDirs{conf}/snippets/hardcopySetFooter.pg"; 275 276 # The set divider goes between sets (in multiset output). 277 $webworkFiles{hardcopySnippets}{setDivider} = "$webworkDirs{conf}/snippets/hardcopySetDivider.tex"; 278 279 # The user divider does between users (in multiuser output). 280 $webworkFiles{hardcopySnippets}{userDivider} = "$webworkDirs{conf}/snippets/hardcopyUserDivider.tex"; 281 282 # The postabmle is the last thing in the TeX file. 283 $webworkFiles{hardcopySnippets}{postamble} = "$webworkDirs{conf}/snippets/hardcopyPostamble.tex"; 284 285 ##### Screen snippets are used when displaying problem sets on the screen. 286 287 # The set header is displayed on the problem set page. It is a PG file. 288 $webworkFiles{screenSnippets}{setHeader} = "$webworkDirs{conf}/snippets/setHeader.pg"; # screenSetHeader.pg" 289 290 # A PG template for creation of new problems. 291 $webworkFiles{screenSnippets}{blankProblem} = "$webworkDirs{conf}/snippets/blankProblem.pg"; # screenSetHeader.pg" 292 293 # A site info "message of the day" file 294 $webworkFiles{site_info} = "$webworkDirs{htdocs}/site_info.txt"; 295 ################################################################################ 296 # Course-specific files 297 ################################################################################ 298 299 # The course configuration file. 300 $courseFiles{environment} = "$courseDirs{root}/course.conf"; 301 302 # File contents are displayed after login, on the problem sets page. Path given 303 # here is relative to the templates directory. 304 $courseFiles{course_info} = "course_info.txt"; 305 306 # File contents are displayed on the login page. Path given here is relative to 307 # the templates directory. 308 $courseFiles{login_info} = "login_info.txt"; 309 310 # Additional library buttons can be added to the Library Browser (SetMaker.pm) 311 # by adding the libraries you want to the following line. For each key=>value 312 # in the list, if a directory (or link to a directory) with name 'key' appears 313 # in the templates directory, then a button with name 'value' will be placed at 314 # the top of the problem browser. (No button will appear if there is no 315 # directory or link with the given name in the templates directory.) For 316 # example, 317 # 318 # $courseFiles{problibs} = {rochester => "Rochester", asu => "ASU"}; 319 # 320 # would add two buttons, one for the Rochester library and one for the ASU 321 # library, provided templates/rochester and templates/asu exists either as 322 # subdirectories or links to other directories. 323 # 324 $courseFiles{problibs} = { 325 # rochesterLibrary => "Rochester", 326 # asuLibrary => "Arizona State", 327 # dcdsLibrary => "Detroit CDS", 328 # dartmouthLibrary => "Dartmouth", 329 # indianaLibrary => "Indiana", 330 # osuLibrary => "Ohio State", 331 # capaLibrary => "CAPA", 332 }; 333 334 ################################################################################ 335 # Database options (WWDBv3) 336 ################################################################################ 337 338 # The four arguments passed to the DBI::connect() method. See the DBI manual for 339 # more information. 340 $wwdbv3_settings{dsn} = "dbi:mysql:wwdbv3"; 341 $wwdbv3_settings{user} = "wwdbv3"; 342 $wwdbv3_settings{pass} = "xyzzy"; 343 $wwdbv3_settings{attr} = {}; 344 345 # WWDBv3 needs a lock file to prevent concurrent database upgrades. The file 346 # will be locked with flock(). 347 $wwdbv3_settings{upgrade_lock} = "$webworkDirs{tmp}/wwdbv3_upgrade.lock"; 348 349 ################################################################################ 350 # Database options (WWDBv2) 351 ################################################################################ 352 353 # Several database are defined in the file conf/database.conf and stored in the 354 # hash %dbLayouts. 355 include "conf/database.conf"; 356 357 # Select the default database layout. This can be overridden in the course.conf 358 # file of a particular course. If you choose "gdbm", WeBWorK will be able to 359 # use courses from WeBWorK 1 without first adding course.conf files to them. 360 # However, the recommended database layout for new courses is "sql_single". This 361 # can be set when creating a course. 362 $dbLayoutName = "sql_single"; # or "gdbm" or "sql" 363 364 # This sets the symbol "dbLayout" as an alias for the selected database layout. 365 *dbLayout = $dbLayouts{$dbLayoutName}; 366 367 ################################################################################ 368 # Problem library options 369 ################################################################################ 370 371 # The directory containing the problem library files. Set to "" if no problem 372 # library is installed. 373 $problemLibrary{root} = ""; 374 375 # Problem Library version 376 # Version 1 is in use. Version 2 will be released soon. 377 $problemLibrary{version} = "1"; 378 379 # The name of the SQL database containing problem metadata 380 $problemLibrary{sourceSQL} = "ProblemLibrary"; 381 382 # The user name to use when connecting to the problem library database 383 $problemLibrary{userSQL} = "webworkRead"; 384 385 # The password to use when connecting to the problem library database 386 $problemLibrary{passwordSQL} = ""; 387 388 ################################################################################ 389 # Logs 390 ################################################################################ 391 392 # FIXME: take logs out of %webworkFiles/%courseFiles and give them their own 393 # top-level hash. 394 395 # Logs data about how long it takes to process problems. (Do not confuse this 396 # with the /other/ timing log which can be set by WeBWorK::Timing and is used 397 # for benchmarking system performance in general. At some point, this timing 398 # mechanism will be deprecated in favor of the WeBWorK::Timing mechanism.) 399 $webworkFiles{logs}{timing} = "$webworkDirs{logs}/timing.log"; 400 401 # Logs courses created via the web-based Course Administration module. 402 $webworkFiles{logs}{hosted_courses} = "$webworkDirs{logs}/hosted_courses.log"; 403 404 # The transaction log contains data from each recorded answer submission. This 405 # is useful if the database becomes corrupted. 406 $webworkFiles{logs}{transaction} = "$courseDirs{logs}/transaction.log"; 407 408 # The answer log stores a history of all users' submitted answers. 409 $courseFiles{logs}{answer_log} = "$courseDirs{logs}/answer_log"; 410 411 # Log logins. 412 $courseFiles{logs}{login_log} = "$courseDirs{logs}/login.log"; 413 414 ################################################################################ 415 # Site defaults (FIXME: what other things could be "site defaults"?) 416 ################################################################################ 417 418 # Status strings -- lists valid status values and their names. If your site uses 419 # additional values, add them here. 420 $siteDefaults{status} = { 421 A => "Audit", 422 a => "Audit", 423 audit => "Audit", 424 D => "Drop", 425 d => "Drop", 426 drop => "Drop", 427 withdraw => "Drop", 428 C => "Enrolled", 429 c => "Enrolled", 430 current => "Enrolled", 431 enrolled => "Enrolled", 432 }; 433 434 # Set the default timezone of courses on this server. To get a list of valid 435 # timezones, run: 436 # 437 # perl -MDateTime::TimeZone -e 'print join "\n", DateTime::TimeZone::all_names' 438 # 439 # To get a list of valid timezone "links" (deprecated names), run: 440 # 441 # perl -MDateTime::TimeZone -e 'print join "\n", DateTime::TimeZone::links' 442 # 443 # If left blank, the system timezone will be used. This is usually what you 444 # want. You might want to set this if your server is NOT in the same timezone as 445 # your school. If just a few courses are in a different timezone, set this in 446 # course.conf for the affected courses instead. 447 # 448 $siteDefaults{timezone} = ""; 449 450 # The default_templates_course is used by default to create a new course. 451 # The contents of the templates directory are copied from this course 452 # to the new course being created. 453 $siteDefaults{default_templates_course} ="modelCourse"; 454 455 ################################################################################ 456 # Frontend options 457 ################################################################################ 458 459 %templates = ( 460 system => "$webworkDirs{conf}/templates/ur.template", 461 gateway => "$webworkDirs{conf}/templates/gw.template", 462 ); 463 464 ################################################################################ 465 # Authorization system 466 ################################################################################ 467 468 # This lets you specify a minimum permission level needed to perform certain 469 # actions. For each pair in the hash below, in order to perform the action 470 # described by the key, the user must have a permission level greater than or 471 # equal to the value. 472 473 my $guest = -1; 474 my $student = 0; 475 my $proctor = 2; 476 my $ta = 5; 477 my $professor = 10; 478 my $nobody = undef; 479 480 %permissionLevels = ( 481 login => $guest, 482 report_bugs => $student, 483 submit_feedback => $student, 484 change_password => $student, 485 change_email_address => $student, 486 487 proctor_quiz => $proctor, 488 489 view_multiple_sets => $ta, 490 view_unopened_sets => $ta, 491 view_unpublished_sets => $ta, 492 view_answers => $ta, 493 494 become_student => $professor, 495 access_instructor_tools => $ta, 496 score_sets => $professor, 497 send_mail => $professor, 498 receive_feedback => $ta, 499 500 create_and_delete_problem_sets => $professor, 501 assign_problem_sets => $professor, 502 modify_problem_sets => $professor, 503 modify_student_data => $professor, 504 modify_classlist_files => $professor, 505 modify_set_def_files => $professor, 506 modify_scoring_files => $professor, 507 modify_problem_template_files => $professor, 508 509 create_and_delete_courses => $professor, 510 fix_course_databases => $professor, 511 512 ##### Behavior of the interactive problem processor ##### 513 514 show_correct_answers_before_answer_date => $ta, 515 show_solutions_before_answer_date => $ta, 516 avoid_recording_answers => $ta, 517 can_show_old_answers_by_default => $student, 518 check_answers_before_open_date => $ta, 519 check_answers_after_open_date_with_attempts => $ta, 520 check_answers_after_open_date_without_attempts => $guest, 521 check_answers_after_due_date => $guest, 522 check_answers_after_answer_date => $guest, 523 record_answers_when_acting_as_student => $nobody, 524 # "record_answers_when_acting_as_student" takes precedence 525 # over the following for professors acting as students: 526 record_answers_before_open_date => $nobody, 527 record_answers_after_open_date_with_attempts => $student, 528 record_answers_after_open_date_without_attempts => $nobody, 529 record_answers_after_due_date => $nobody, 530 record_answers_after_answer_date => $nobody, 531 dont_log_past_answers => $professor, 532 533 ##### Behavior of the Hardcopy Processor ##### 534 535 download_hardcopy_multiuser => $ta, 536 download_hardcopy_multiset => $ta, 537 download_hardcopy_format_tex => $ta, 538 ); 539 540 ################################################################################ 541 # Session options 542 ################################################################################ 543 544 # $sessionKeyTimeout defines seconds of inactivity before a key expires 545 $sessionKeyTimeout = 60*30; 546 547 # $sessionKeyLength defines the length (in characters) of the session key 548 $sessionKeyLength = 40; 549 550 # @sessionKeyChars lists the legal session key characters 551 @sessionKeyChars = ('A'..'Z', 'a'..'z', '0'..'9', '.', '^', '/', '!', '*'); 552 553 # Practice users are users who's names start with $practiceUser 554 # (you can comment this out to remove practice user support) 555 $practiceUserPrefix = "practice"; 556 557 # There is a practice user who can be logged in multiple times. He's 558 # commented out by default, though, so you don't hurt yourself. It is 559 # kindof a backdoor to the practice user system, since he doesn't have a 560 # password. Come to think of it, why do we even have this?! 561 #$debugPracticeUser = "practice666"; 562 563 ################################################################################ 564 # PG subsystem options 565 ################################################################################ 566 567 # List of enabled display modes. Comment out any modes you don't wish to make 568 # available for use. 569 $pg{displayModes} = [ 570 "plainText", # display raw TeX for math expressions 571 "formattedText", # format math expressions using TtH 572 "images", # display math expressions as images generated by dvipng 573 "jsMath", # render TeX math expressions on the client side using jsMath 574 "asciimath", # render TeX math expressions on the client side using ASCIIMathML 575 ]; 576 577 #### Default settings for the PG translator 578 579 # Default display mode. Should be listed above. 580 $pg{options}{displayMode} = "images"; 581 582 # The default grader to use, if a problem doesn't specify. 583 $pg{options}{grader} = "avg_problem_grader"; 584 585 # Fill in answer blanks with the student's last answer by default? 586 $pg{options}{showOldAnswers} = 1; 587 588 # Show correct answers (when allowed) by default? 589 $pg{options}{showCorrectAnswers} = 0; 590 591 # Show hints (when allowed) by default? 592 $pg{options}{showHints} = 0; 593 594 # Show solutions (when allowed) by default? 595 $pg{options}{showSolutions} = 0; 596 597 # Catch translation warnings internally by default? (We no longer need to do 598 # this, since there is a global warnings handler. So this should be off.) 599 $pg{options}{catchWarnings} = 0; 600 601 ##### Currently-selected renderer 602 603 # Only the local renderer is supported in this version. 604 $pg{renderer} = "WeBWorK::PG::Local"; 605 606 # The remote renderer connects to an XML-RPC PG rendering server. 607 #$pg{renderer} = "WeBWorK::PG::Remote"; 608 609 ##### Renderer-dependent options 610 611 # The remote renderer has one option: 612 $pg{renderers}{"WeBWorK::PG::Remote"} = { 613 # The "proxy" server to connect to for remote rendering. 614 proxy => "http://localhost:21000/RenderD", 615 }; 616 617 ##### Settings for various display modes 618 619 # "images" mode has several settings: 620 $pg{displayModeOptions}{images} = { 621 # Determines the method used to align images in output. Can be 622 # "baseline", "absmiddle", or "mysql". 623 dvipng_align => 'baseline', 624 625 # If we choose mysql, we need information on connecting to the 626 # database. Whatever you use here, you have to create the database 627 # and grant read/write priveleges to the user listed here. To create 628 # the database in mysql, as root use: 629 # 630 # CREATE DATABASE DvipngDepths; 631 # USE DvipngDepths; 632 # CREATE TABLE depths (md5 CHAR(33) NOT NULL, depth SMALLINT, PRIMARY KEY (md5)); 633 # GRANT ALL ON DvipngDepths.* TO webworkWrite; 634 # 635 # In the last statement, "webworkWrite" should match the user below. 636 # FIXME: this database can become a table in the 'webwork' database 637 dvipng_depth_db => { 638 dbsource => 'dbi:mysql:DvipngDepths', 639 user => $dbLayouts{sql}->{password}->{params}->{usernameRW}, 640 passwd => $dbLayouts{sql}->{password}->{params}->{passwordRW}, 641 }, 642 }; 643 644 $pg{displayModeOptions}{jsMath} = { 645 reportMissingFonts => 0, # set to 1 to allow the missing font message 646 missingFontMessage => undef, # set to an HTML string to replace the missing font message 647 noImageFonts => 0, # set to 1 if you didn't install the jsMath image fonts 648 }; 649 650 ##### Directories used by PG 651 652 # The root of the PG directory tree (from pg_root in Apache config). 653 $pg{directories}{root} = "$pg_dir"; 654 $pg{directories}{lib} = "$pg{directories}{root}/lib"; 655 $pg{directories}{macros} = "$pg{directories}{root}/macros"; 656 657 # 658 # The macro file search path. Each directory in this list is seached 659 # (in this order) by loadMacros() when it looks for a .pl file. 660 # 661 $pg{directories}{macrosPath} = [ 662 ".", # search the problem file's directory 663 $courseDirs{macros}, 664 $pg{directories}{macros}, 665 ]; 666 667 ##### "Special" PG environment variables. (Stuff that doesn't fit in anywhere else.) 668 669 # Users for whom to print the file name of the PG file being processed. 670 $pg{specialPGEnvironmentVars}{PRINT_FILE_NAMES_FOR} = [ "professor", ]; 671 672 # Locations of CAPA resources. (Only necessary if you need to use converted CAPA 673 # problems.) 674 $pg{specialPGEnvironmentVars}{CAPA_Tools} = "$courseDirs{macros}/CAPA_Tools/", 675 $pg{specialPGEnvironmentVars}{CAPA_MCTools} = "$courseDirs{macros}/CAPA_MCTools/", 676 $pg{specialPGEnvironmentVars}{CAPA_GraphicsDirectory} = "$courseDirs{html}/CAPA_Graphics/", 677 $pg{specialPGEnvironmentVars}{CAPA_Graphics_URL} = "$courseURLs{html}/CAPA_Graphics/", 678 679 # Size in pixels of dynamically-generated images, i.e. graphs. 680 $pg{specialPGEnvironmentVars}{onTheFlyImageSize} = 400, 681 682 # Strings to insert at the start and end of the body of a problem 683 # (at beginproblem() and ENDDOCUMENT) in various modes. More display modes 684 # can be added if different behaviours are desired (e.g., HTML_dpng, 685 # HTML_asciimath, etc.). These parts are not used in the Library browser. 686 687 $pg{specialPGEnvironmentVars}{problemPreamble} = { TeX => '', HTML=> '' }; 688 $pg{specialPGEnvironmentVars}{problemPostamble} = { TeX => '', HTML=>'' }; 689 690 # To have the problem body indented and boxed, uncomment: 691 692 # $pg{specialPGEnvironmentVars}{problemPreamble}{HTML} = '<BLOCKQUOTE> 693 # <TABLE BORDER=1 CELLSPACING=1 CELLPADDING=15 BGCOLOR=#E8E8E8><TR><TD>'; 694 # $pg{specialPGEnvironmentVars}{problemPostamble}{HTML} = '</TD></TR></TABLE> 695 # </BLOCKQUOTE>'; 696 697 ##### PG modules to load 698 699 # The first item of each list is the module to load. The remaining items are 700 # additional packages to import. 701 702 ${pg}{modules} = [ 703 [qw(DynaLoader)], 704 [qw(Exporter)], 705 [qw(GD)], 706 707 [qw(AlgParser AlgParserWithImplicitExpand Expr ExprWithImplicitExpand utf8)], 708 [qw(AnswerHash AnswerEvaluator)], 709 [qw(WWPlot)], # required by Circle (and others) 710 [qw(Circle)], 711 [qw(Complex)], 712 [qw(Complex1)], 713 [qw(Distributions)], 714 [qw(Fraction)], 715 [qw(Fun)], 716 [qw(Hermite)], 717 [qw(Label)], 718 [qw(List)], 719 [qw(Match)], 720 [qw(MatrixReal1)], # required by Matrix 721 [qw(Matrix)], 722 [qw(Multiple)], 723 [qw(PGrandom)], 724 [qw(Regression)], 725 [qw(Select)], 726 [qw(Units)], 727 [qw(VectorField)], 728 [qw(Parser Value)], 729 [qw(Apache::Log)], 730 ]; 731 732 ##### Answer evaluatior defaults 733 734 $pg{ansEvalDefaults} = { 735 functAbsTolDefault => .001, 736 functLLimitDefault => .0000001, 737 functMaxConstantOfIntegration => 1E8, 738 functNumOfPoints => 3, 739 functRelPercentTolDefault => .1, 740 functULimitDefault => .9999999, 741 functVarDefault => "x", 742 functZeroLevelDefault => 1E-14, 743 functZeroLevelTolDefault => 1E-12, 744 numAbsTolDefault => .001, 745 numFormatDefault => "", 746 numRelPercentTolDefault => .1, 747 numZeroLevelDefault => 1E-14, 748 numZeroLevelTolDefault => 1E-12, 749 useBaseTenLog => 0, 750 defaultDisplayMatrixStyle => "[s]", 751 }; 752 753 ################################################################################ 754 # Compatibility 755 ################################################################################ 756 757 # Define the old names for the various "root" variables. 758 $webworkRoot = $webworkDirs{root}; 759 $webworkURLRoot = $webworkURLs{root}; 760 $pgRoot = $pg{directories}{root};
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