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PHP Cross Reference of moodle-2.8 |
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1 <?php 2 3 // This file is part of Moodle - http://moodle.org/ 4 // 5 // Moodle is free software: you can redistribute it and/or modify 6 // it under the terms of the GNU General Public License as published by 7 // the Free Software Foundation, either version 3 of the License, or 8 // (at your option) any later version. 9 // 10 // Moodle is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU General Public License for more details. 14 // 15 // You should have received a copy of the GNU General Public License 16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>. 17 18 /** 19 * This contains functions and classes that will be used by scripts in wiki module 20 * 21 * @package mod_wiki 22 * @copyright 2009 Marc Alier, Jordi Piguillem [email protected] 23 * @copyright 2009 Universitat Politecnica de Catalunya http://www.upc.edu 24 * 25 * @author Jordi Piguillem 26 * @author Marc Alier 27 * @author David Jimenez 28 * @author Josep Arus 29 * @author Daniel Serrano 30 * @author Kenneth Riba 31 * 32 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 33 */ 34 35 require_once($CFG->dirroot . '/mod/wiki/lib.php'); 36 require_once($CFG->dirroot . '/mod/wiki/parser/parser.php'); 37 require_once($CFG->libdir . '/filelib.php'); 38 39 define('WIKI_REFRESH_CACHE_TIME', 30); // @TODO: To be deleted. 40 define('FORMAT_CREOLE', '37'); 41 define('FORMAT_NWIKI', '38'); 42 define('NO_VALID_RATE', '-999'); 43 define('IMPROVEMENT', '+'); 44 define('EQUAL', '='); 45 define('WORST', '-'); 46 47 define('LOCK_TIMEOUT', 30); 48 49 /** 50 * Get a wiki instance 51 * @param int $wikiid the instance id of wiki 52 */ 53 function wiki_get_wiki($wikiid) { 54 global $DB; 55 56 return $DB->get_record('wiki', array('id' => $wikiid)); 57 } 58 59 /** 60 * Get sub wiki instances with same wiki id 61 * @param int $wikiid 62 */ 63 function wiki_get_subwikis($wikiid) { 64 global $DB; 65 return $DB->get_records('wiki_subwikis', array('wikiid' => $wikiid)); 66 } 67 68 /** 69 * Get a sub wiki instance by wiki id and group id 70 * @param int $wikiid 71 * @param int $groupid 72 * @return object 73 */ 74 function wiki_get_subwiki_by_group($wikiid, $groupid, $userid = 0) { 75 global $DB; 76 return $DB->get_record('wiki_subwikis', array('wikiid' => $wikiid, 'groupid' => $groupid, 'userid' => $userid)); 77 } 78 79 /** 80 * Get a sub wiki instace by instance id 81 * @param int $subwikiid 82 * @return object 83 */ 84 function wiki_get_subwiki($subwikiid) { 85 global $DB; 86 return $DB->get_record('wiki_subwikis', array('id' => $subwikiid)); 87 88 } 89 90 /** 91 * Add a new sub wiki instance 92 * @param int $wikiid 93 * @param int $groupid 94 * @return int $insertid 95 */ 96 function wiki_add_subwiki($wikiid, $groupid, $userid = 0) { 97 global $DB; 98 99 $record = new StdClass(); 100 $record->wikiid = $wikiid; 101 $record->groupid = $groupid; 102 $record->userid = $userid; 103 104 $insertid = $DB->insert_record('wiki_subwikis', $record); 105 return $insertid; 106 } 107 108 /** 109 * Get a wiki instance by pageid 110 * @param int $pageid 111 * @return object 112 */ 113 function wiki_get_wiki_from_pageid($pageid) { 114 global $DB; 115 116 $sql = "SELECT w.* 117 FROM {wiki} w, {wiki_subwikis} s, {wiki_pages} p 118 WHERE p.id = ? AND 119 p.subwikiid = s.id AND 120 s.wikiid = w.id"; 121 122 return $DB->get_record_sql($sql, array($pageid)); 123 } 124 125 /** 126 * Get a wiki page by pageid 127 * @param int $pageid 128 * @return object 129 */ 130 function wiki_get_page($pageid) { 131 global $DB; 132 return $DB->get_record('wiki_pages', array('id' => $pageid)); 133 } 134 135 /** 136 * Get latest version of wiki page 137 * @param int $pageid 138 * @return object 139 */ 140 function wiki_get_current_version($pageid) { 141 global $DB; 142 143 // @TODO: Fix this query 144 $sql = "SELECT * 145 FROM {wiki_versions} 146 WHERE pageid = ? 147 ORDER BY version DESC"; 148 $records = $DB->get_records_sql($sql, array($pageid), 0, 1); 149 return array_pop($records); 150 151 } 152 153 /** 154 * Alias of wiki_get_current_version 155 * @TODO, does the exactly same thing as wiki_get_current_version, should be removed 156 * @param int $pageid 157 * @return object 158 */ 159 function wiki_get_last_version($pageid) { 160 return wiki_get_current_version($pageid); 161 } 162 163 /** 164 * Get page section 165 * @param int $pageid 166 * @param string $section 167 */ 168 function wiki_get_section_page($page, $section) { 169 170 $version = wiki_get_current_version($page->id); 171 return wiki_parser_proxy::get_section($version->content, $version->contentformat, $section); 172 } 173 174 /** 175 * Get a wiki page by page title 176 * @param int $swid, sub wiki id 177 * @param string $title 178 * @return object 179 */ 180 function wiki_get_page_by_title($swid, $title) { 181 global $DB; 182 return $DB->get_record('wiki_pages', array('subwikiid' => $swid, 'title' => $title)); 183 } 184 185 /** 186 * Get a version record by record id 187 * @param int $versionid, the version id 188 * @return object 189 */ 190 function wiki_get_version($versionid) { 191 global $DB; 192 return $DB->get_record('wiki_versions', array('id' => $versionid)); 193 } 194 195 /** 196 * Get first page of wiki instace 197 * @param int $subwikiid 198 * @param int $module, wiki instance object 199 */ 200 function wiki_get_first_page($subwikid, $module = null) { 201 global $DB, $USER; 202 203 $sql = "SELECT p.* 204 FROM {wiki} w, {wiki_subwikis} s, {wiki_pages} p 205 WHERE s.id = ? AND 206 s.wikiid = w.id AND 207 w.firstpagetitle = p.title AND 208 p.subwikiid = s.id"; 209 return $DB->get_record_sql($sql, array($subwikid)); 210 } 211 212 function wiki_save_section($wikipage, $sectiontitle, $sectioncontent, $userid) { 213 214 $wiki = wiki_get_wiki_from_pageid($wikipage->id); 215 $cm = get_coursemodule_from_instance('wiki', $wiki->id); 216 $context = context_module::instance($cm->id); 217 218 if (has_capability('mod/wiki:editpage', $context)) { 219 $version = wiki_get_current_version($wikipage->id); 220 $content = wiki_parser_proxy::get_section($version->content, $version->contentformat, $sectiontitle, true); 221 222 $newcontent = $content[0] . $sectioncontent . $content[2]; 223 224 return wiki_save_page($wikipage, $newcontent, $userid); 225 } else { 226 return false; 227 } 228 } 229 230 /** 231 * Save page content 232 * @param object $wikipage 233 * @param string $newcontent 234 * @param int $userid 235 */ 236 function wiki_save_page($wikipage, $newcontent, $userid) { 237 global $DB; 238 239 $wiki = wiki_get_wiki_from_pageid($wikipage->id); 240 $cm = get_coursemodule_from_instance('wiki', $wiki->id); 241 $context = context_module::instance($cm->id); 242 243 if (has_capability('mod/wiki:editpage', $context)) { 244 $version = wiki_get_current_version($wikipage->id); 245 246 $version->content = $newcontent; 247 $version->userid = $userid; 248 $version->version++; 249 $version->timecreated = time(); 250 $version->id = $DB->insert_record('wiki_versions', $version); 251 252 $wikipage->timemodified = $version->timecreated; 253 $wikipage->userid = $userid; 254 $return = wiki_refresh_cachedcontent($wikipage, $newcontent); 255 $event = \mod_wiki\event\page_updated::create( 256 array( 257 'context' => $context, 258 'objectid' => $wikipage->id, 259 'relateduserid' => $userid, 260 'other' => array( 261 'newcontent' => $newcontent 262 ) 263 )); 264 $event->add_record_snapshot('wiki', $wiki); 265 $event->add_record_snapshot('wiki_pages', $wikipage); 266 $event->add_record_snapshot('wiki_versions', $version); 267 $event->trigger(); 268 return $return; 269 } else { 270 return false; 271 } 272 } 273 274 function wiki_refresh_cachedcontent($page, $newcontent = null) { 275 global $DB; 276 277 $version = wiki_get_current_version($page->id); 278 if (empty($version)) { 279 return null; 280 } 281 if (!isset($newcontent)) { 282 $newcontent = $version->content; 283 } 284 285 $options = array('swid' => $page->subwikiid, 'pageid' => $page->id); 286 $parseroutput = wiki_parse_content($version->contentformat, $newcontent, $options); 287 $page->cachedcontent = $parseroutput['toc'] . $parseroutput['parsed_text']; 288 $page->timerendered = time(); 289 $DB->update_record('wiki_pages', $page); 290 291 wiki_refresh_page_links($page, $parseroutput['link_count']); 292 293 return array('page' => $page, 'sections' => $parseroutput['repeated_sections'], 'version' => $version->version); 294 } 295 296 /** 297 * Restore a page with specified version. 298 * 299 * @param stdClass $wikipage wiki page record 300 * @param stdClass $version wiki page version to restore 301 * @param context_module $context context of wiki module 302 * @return stdClass restored page 303 */ 304 function wiki_restore_page($wikipage, $version, $context) { 305 $return = wiki_save_page($wikipage, $version->content, $version->userid); 306 $event = \mod_wiki\event\page_version_restored::create( 307 array( 308 'context' => $context, 309 'objectid' => $version->id, 310 'other' => array( 311 'pageid' => $wikipage->id 312 ) 313 )); 314 $event->add_record_snapshot('wiki_versions', $version); 315 $event->trigger(); 316 return $return['page']; 317 } 318 319 function wiki_refresh_page_links($page, $links) { 320 global $DB; 321 322 $DB->delete_records('wiki_links', array('frompageid' => $page->id)); 323 foreach ($links as $linkname => $linkinfo) { 324 325 $newlink = new stdClass(); 326 $newlink->subwikiid = $page->subwikiid; 327 $newlink->frompageid = $page->id; 328 329 if ($linkinfo['new']) { 330 $newlink->tomissingpage = $linkname; 331 } else { 332 $newlink->topageid = $linkinfo['pageid']; 333 } 334 335 try { 336 $DB->insert_record('wiki_links', $newlink); 337 } catch (dml_exception $e) { 338 debugging($e->getMessage()); 339 } 340 341 } 342 } 343 344 /** 345 * Create a new wiki page, if the page exists, return existing pageid 346 * @param int $swid 347 * @param string $title 348 * @param string $format 349 * @param int $userid 350 */ 351 function wiki_create_page($swid, $title, $format, $userid) { 352 global $DB; 353 $subwiki = wiki_get_subwiki($swid); 354 $cm = get_coursemodule_from_instance('wiki', $subwiki->wikiid); 355 $context = context_module::instance($cm->id); 356 require_capability('mod/wiki:editpage', $context); 357 // if page exists 358 if ($page = wiki_get_page_by_title($swid, $title)) { 359 return $page->id; 360 } 361 362 // Creating a new empty version 363 $version = new stdClass(); 364 $version->content = ''; 365 $version->contentformat = $format; 366 $version->version = 0; 367 $version->timecreated = time(); 368 $version->userid = $userid; 369 370 $versionid = null; 371 $versionid = $DB->insert_record('wiki_versions', $version); 372 373 // Createing a new empty page 374 $page = new stdClass(); 375 $page->subwikiid = $swid; 376 $page->title = $title; 377 $page->cachedcontent = ''; 378 $page->timecreated = $version->timecreated; 379 $page->timemodified = $version->timecreated; 380 $page->timerendered = $version->timecreated; 381 $page->userid = $userid; 382 $page->pageviews = 0; 383 $page->readonly = 0; 384 385 $pageid = $DB->insert_record('wiki_pages', $page); 386 387 // Setting the pageid 388 $version->id = $versionid; 389 $version->pageid = $pageid; 390 $DB->update_record('wiki_versions', $version); 391 392 $event = \mod_wiki\event\page_created::create( 393 array( 394 'context' => $context, 395 'objectid' => $pageid 396 ) 397 ); 398 $event->trigger(); 399 400 wiki_make_cache_expire($page->title); 401 return $pageid; 402 } 403 404 function wiki_make_cache_expire($pagename) { 405 global $DB; 406 407 $sql = "UPDATE {wiki_pages} 408 SET timerendered = 0 409 WHERE id IN ( SELECT l.frompageid 410 FROM {wiki_links} l 411 WHERE l.tomissingpage = ? 412 )"; 413 $DB->execute ($sql, array($pagename)); 414 } 415 416 /** 417 * Get a specific version of page 418 * @param int $pageid 419 * @param int $version 420 */ 421 function wiki_get_wiki_page_version($pageid, $version) { 422 global $DB; 423 return $DB->get_record('wiki_versions', array('pageid' => $pageid, 'version' => $version)); 424 } 425 426 /** 427 * Get version list 428 * @param int $pageid 429 * @param int $limitfrom 430 * @param int $limitnum 431 */ 432 function wiki_get_wiki_page_versions($pageid, $limitfrom, $limitnum) { 433 global $DB; 434 return $DB->get_records('wiki_versions', array('pageid' => $pageid), 'version DESC', '*', $limitfrom, $limitnum); 435 } 436 437 /** 438 * Count the number of page version 439 * @param int $pageid 440 */ 441 function wiki_count_wiki_page_versions($pageid) { 442 global $DB; 443 return $DB->count_records('wiki_versions', array('pageid' => $pageid)); 444 } 445 446 /** 447 * Get linked from page 448 * @param int $pageid 449 */ 450 function wiki_get_linked_to_pages($pageid) { 451 global $DB; 452 return $DB->get_records('wiki_links', array('frompageid' => $pageid)); 453 } 454 455 /** 456 * Get linked from page 457 * @param int $pageid 458 */ 459 function wiki_get_linked_from_pages($pageid) { 460 global $DB; 461 return $DB->get_records('wiki_links', array('topageid' => $pageid)); 462 } 463 464 /** 465 * Get pages which user have been edited 466 * @param int $swid 467 * @param int $userid 468 */ 469 function wiki_get_contributions($swid, $userid) { 470 global $DB; 471 472 $sql = "SELECT v.* 473 FROM {wiki_versions} v, {wiki_pages} p 474 WHERE p.subwikiid = ? AND 475 v.pageid = p.id AND 476 v.userid = ?"; 477 478 return $DB->get_records_sql($sql, array($swid, $userid)); 479 } 480 481 /** 482 * Get missing or empty pages in wiki 483 * @param int $swid sub wiki id 484 */ 485 function wiki_get_missing_or_empty_pages($swid) { 486 global $DB; 487 488 $sql = "SELECT DISTINCT p.title, p.id, p.subwikiid 489 FROM {wiki} w, {wiki_subwikis} s, {wiki_pages} p 490 WHERE s.wikiid = w.id and 491 s.id = ? and 492 w.firstpagetitle != p.title and 493 p.subwikiid = ? and 494 1 = (SELECT count(*) 495 FROM {wiki_versions} v 496 WHERE v.pageid = p.id) 497 UNION 498 SELECT DISTINCT l.tomissingpage as title, 0 as id, l.subwikiid 499 FROM {wiki_links} l 500 WHERE l.subwikiid = ? and 501 l.topageid = 0"; 502 503 return $DB->get_records_sql($sql, array($swid, $swid, $swid)); 504 } 505 506 /** 507 * Get pages list in wiki 508 * @param int $swid sub wiki id 509 */ 510 function wiki_get_page_list($swid) { 511 global $DB; 512 $records = $DB->get_records('wiki_pages', array('subwikiid' => $swid), 'title ASC'); 513 return $records; 514 } 515 516 /** 517 * Return a list of orphaned wikis for one specific subwiki 518 * @global object 519 * @param int $swid sub wiki id 520 */ 521 function wiki_get_orphaned_pages($swid) { 522 global $DB; 523 524 $sql = "SELECT p.id, p.title 525 FROM {wiki_pages} p, {wiki} w , {wiki_subwikis} s 526 WHERE p.subwikiid = ? 527 AND s.id = ? 528 AND w.id = s.wikiid 529 AND p.title != w.firstpagetitle 530 AND p.id NOT IN (SELECT topageid FROM {wiki_links} WHERE subwikiid = ?)"; 531 532 return $DB->get_records_sql($sql, array($swid, $swid, $swid)); 533 } 534 535 /** 536 * Search wiki title 537 * @param int $swid sub wiki id 538 * @param string $search 539 */ 540 function wiki_search_title($swid, $search) { 541 global $DB; 542 543 return $DB->get_records_select('wiki_pages', "subwikiid = ? AND title LIKE ?", array($swid, '%'.$search.'%')); 544 } 545 546 /** 547 * Search wiki content 548 * @param int $swid sub wiki id 549 * @param string $search 550 */ 551 function wiki_search_content($swid, $search) { 552 global $DB; 553 554 return $DB->get_records_select('wiki_pages', "subwikiid = ? AND cachedcontent LIKE ?", array($swid, '%'.$search.'%')); 555 } 556 557 /** 558 * Search wiki title and content 559 * @param int $swid sub wiki id 560 * @param string $search 561 */ 562 function wiki_search_all($swid, $search) { 563 global $DB; 564 565 return $DB->get_records_select('wiki_pages', "subwikiid = ? AND (cachedcontent LIKE ? OR title LIKE ?)", array($swid, '%'.$search.'%', '%'.$search.'%')); 566 } 567 568 /** 569 * Get user data 570 */ 571 function wiki_get_user_info($userid) { 572 global $DB; 573 return $DB->get_record('user', array('id' => $userid)); 574 } 575 576 /** 577 * Increase page view nubmer 578 * @param int $page, database record 579 */ 580 function wiki_increment_pageviews($page) { 581 global $DB; 582 583 $page->pageviews++; 584 $DB->update_record('wiki_pages', $page); 585 } 586 587 //---------------------------------------------------------- 588 //---------------------------------------------------------- 589 590 /** 591 * Text format supported by wiki module 592 */ 593 function wiki_get_formats() { 594 return array('html', 'creole', 'nwiki'); 595 } 596 597 /** 598 * Parses a string with the wiki markup language in $markup. 599 * 600 * @return Array or false when something wrong has happened. 601 * 602 * Returned array contains the following fields: 603 * 'parsed_text' => String. Contains the parsed wiki content. 604 * 'unparsed_text' => String. Constains the original wiki content. 605 * 'link_count' => Array of array('destination' => ..., 'new' => "is new?"). Contains the internal wiki links found in the wiki content. 606 * 'deleted_sections' => the list of deleted sections. 607 * '' => 608 * 609 * @author Josep Arús Pous 610 **/ 611 function wiki_parse_content($markup, $pagecontent, $options = array()) { 612 global $PAGE; 613 614 $subwiki = wiki_get_subwiki($options['swid']); 615 $cm = get_coursemodule_from_instance("wiki", $subwiki->wikiid); 616 $context = context_module::instance($cm->id); 617 618 $parser_options = array( 619 'link_callback' => '/mod/wiki/locallib.php:wiki_parser_link', 620 'link_callback_args' => array('swid' => $options['swid']), 621 'table_callback' => '/mod/wiki/locallib.php:wiki_parser_table', 622 'real_path_callback' => '/mod/wiki/locallib.php:wiki_parser_real_path', 623 'real_path_callback_args' => array( 624 'context' => $context, 625 'component' => 'mod_wiki', 626 'filearea' => 'attachments', 627 'subwikiid'=> $subwiki->id, 628 'pageid' => $options['pageid'] 629 ), 630 'pageid' => $options['pageid'], 631 'pretty_print' => (isset($options['pretty_print']) && $options['pretty_print']), 632 'printable' => (isset($options['printable']) && $options['printable']) 633 ); 634 635 return wiki_parser_proxy::parse($pagecontent, $markup, $parser_options); 636 } 637 638 /** 639 * This function is the parser callback to parse wiki links. 640 * 641 * It returns the necesary information to print a link. 642 * 643 * NOTE: Empty pages and non-existent pages must be print in red color. 644 * 645 * !!!!!! IMPORTANT !!!!!! 646 * It is critical that you call format_string on the content before it is used. 647 * 648 * @param string|page_wiki $link name of a page 649 * @param array $options 650 * @return array Array('content' => string, 'url' => string, 'new' => bool, 'link_info' => array) 651 * 652 * @TODO Doc return and options 653 */ 654 function wiki_parser_link($link, $options = null) { 655 global $CFG; 656 657 if (is_object($link)) { 658 $parsedlink = array('content' => $link->title, 'url' => $CFG->wwwroot . '/mod/wiki/view.php?pageid=' . $link->id, 'new' => false, 'link_info' => array('link' => $link->title, 'pageid' => $link->id, 'new' => false)); 659 660 $version = wiki_get_current_version($link->id); 661 if ($version->version == 0) { 662 $parsedlink['new'] = true; 663 } 664 return $parsedlink; 665 } else { 666 $swid = $options['swid']; 667 668 if ($page = wiki_get_page_by_title($swid, $link)) { 669 $parsedlink = array('content' => $link, 'url' => $CFG->wwwroot . '/mod/wiki/view.php?pageid=' . $page->id, 'new' => false, 'link_info' => array('link' => $link, 'pageid' => $page->id, 'new' => false)); 670 671 $version = wiki_get_current_version($page->id); 672 if ($version->version == 0) { 673 $parsedlink['new'] = true; 674 } 675 676 return $parsedlink; 677 678 } else { 679 return array('content' => $link, 'url' => $CFG->wwwroot . '/mod/wiki/create.php?swid=' . $swid . '&title=' . urlencode($link) . '&action=new', 'new' => true, 'link_info' => array('link' => $link, 'new' => true, 'pageid' => 0)); 680 } 681 } 682 } 683 684 /** 685 * Returns the table fully parsed (HTML) 686 * 687 * @return HTML for the table $table 688 * @author Josep Arús Pous 689 * 690 **/ 691 function wiki_parser_table($table) { 692 global $OUTPUT; 693 694 $htmltable = new html_table(); 695 696 $headers = $table[0]; 697 $htmltable->head = array(); 698 foreach ($headers as $h) { 699 $htmltable->head[] = $h[1]; 700 } 701 702 array_shift($table); 703 $htmltable->data = array(); 704 foreach ($table as $row) { 705 $row_data = array(); 706 foreach ($row as $r) { 707 $row_data[] = $r[1]; 708 } 709 $htmltable->data[] = $row_data; 710 } 711 712 return html_writer::table($htmltable); 713 } 714 715 /** 716 * Returns an absolute path link, unless there is no such link. 717 * 718 * @param string $url Link's URL or filename 719 * @param stdClass $context filearea params 720 * @param string $component The component the file is associated with 721 * @param string $filearea The filearea the file is stored in 722 * @param int $swid Sub wiki id 723 * 724 * @return string URL for files full path 725 */ 726 727 function wiki_parser_real_path($url, $context, $component, $filearea, $swid) { 728 global $CFG; 729 730 if (preg_match("/^(?:http|ftp)s?\:\/\//", $url)) { 731 return $url; 732 } else { 733 734 $file = 'pluginfile.php'; 735 if (!$CFG->slasharguments) { 736 $file = $file . '?file='; 737 } 738 $baseurl = "$CFG->wwwroot/$file/{$context->id}/$component/$filearea/$swid/"; 739 // it is a file in current file area 740 return $baseurl . $url; 741 } 742 } 743 744 /** 745 * Returns the token used by a wiki language to represent a given tag or "object" (bold -> **) 746 * 747 * @return A string when it has only one token at the beginning (f. ex. lists). An array composed by 2 strings when it has 2 tokens, one at the beginning and one at the end (f. ex. italics). Returns false otherwise. 748 * @author Josep Arús Pous 749 **/ 750 function wiki_parser_get_token($markup, $name) { 751 752 return wiki_parser_proxy::get_token($name, $markup); 753 } 754 755 /** 756 * Checks if current user can view a subwiki 757 * 758 * @param stdClass $subwiki usually record from {wiki_subwikis}. Must contain fields 'wikiid', 'groupid', 'userid'. 759 * If it also contains fields 'course' and 'groupmode' from table {wiki} it will save extra DB query. 760 * @param stdClass $wiki optional wiki object if known 761 * @return bool 762 */ 763 function wiki_user_can_view($subwiki, $wiki = null) { 764 global $USER; 765 766 if (empty($wiki) || $wiki->id != $subwiki->wikiid) { 767 $wiki = wiki_get_wiki($subwiki->wikiid); 768 } 769 $modinfo = get_fast_modinfo($wiki->course); 770 if (!isset($modinfo->instances['wiki'][$subwiki->wikiid])) { 771 // Module does not exist. 772 return false; 773 } 774 $cm = $modinfo->instances['wiki'][$subwiki->wikiid]; 775 if (!$cm->uservisible) { 776 // The whole module is not visible to the current user. 777 return false; 778 } 779 $context = context_module::instance($cm->id); 780 781 // Working depending on activity groupmode 782 switch (groups_get_activity_groupmode($cm)) { 783 case NOGROUPS: 784 785 if ($wiki->wikimode == 'collaborative') { 786 // Collaborative Mode: 787 // There is one wiki for all the class. 788 // 789 // Only view capbility needed 790 return has_capability('mod/wiki:viewpage', $context); 791 } else if ($wiki->wikimode == 'individual') { 792 // Individual Mode: 793 // Each person owns a wiki. 794 if ($subwiki->userid == $USER->id) { 795 // Only the owner of the wiki can view it 796 return has_capability('mod/wiki:viewpage', $context); 797 } else { // User has special capabilities 798 // User must have: 799 // mod/wiki:viewpage capability 800 // and 801 // mod/wiki:managewiki capability 802 $view = has_capability('mod/wiki:viewpage', $context); 803 $manage = has_capability('mod/wiki:managewiki', $context); 804 805 return $view && $manage; 806 } 807 } else { 808 //Error 809 return false; 810 } 811 case SEPARATEGROUPS: 812 // Collaborative and Individual Mode 813 // 814 // Collaborative Mode: 815 // There is one wiki per group. 816 // Individual Mode: 817 // Each person owns a wiki. 818 if ($wiki->wikimode == 'collaborative' || $wiki->wikimode == 'individual') { 819 // Only members of subwiki group could view that wiki 820 if (in_array($subwiki->groupid, $modinfo->get_groups($cm->groupingid))) { 821 // Only view capability needed 822 return has_capability('mod/wiki:viewpage', $context); 823 824 } else { // User is not part of that group 825 // User must have: 826 // mod/wiki:managewiki capability 827 // or 828 // moodle/site:accessallgroups capability 829 // and 830 // mod/wiki:viewpage capability 831 $view = has_capability('mod/wiki:viewpage', $context); 832 $manage = has_capability('mod/wiki:managewiki', $context); 833 $access = has_capability('moodle/site:accessallgroups', $context); 834 return ($manage || $access) && $view; 835 } 836 } else { 837 //Error 838 return false; 839 } 840 case VISIBLEGROUPS: 841 // Collaborative and Individual Mode 842 // 843 // Collaborative Mode: 844 // There is one wiki per group. 845 // Individual Mode: 846 // Each person owns a wiki. 847 if ($wiki->wikimode == 'collaborative' || $wiki->wikimode == 'individual') { 848 // Everybody can read all wikis 849 // 850 // Only view capability needed 851 return has_capability('mod/wiki:viewpage', $context); 852 } else { 853 //Error 854 return false; 855 } 856 default: // Error 857 return false; 858 } 859 } 860 861 /** 862 * Checks if current user can edit a subwiki 863 * 864 * @param $subwiki 865 */ 866 function wiki_user_can_edit($subwiki) { 867 global $USER; 868 869 $wiki = wiki_get_wiki($subwiki->wikiid); 870 $cm = get_coursemodule_from_instance('wiki', $wiki->id); 871 $context = context_module::instance($cm->id); 872 873 // Working depending on activity groupmode 874 switch (groups_get_activity_groupmode($cm)) { 875 case NOGROUPS: 876 877 if ($wiki->wikimode == 'collaborative') { 878 // Collaborative Mode: 879 // There is a wiki for all the class. 880 // 881 // Only edit capbility needed 882 return has_capability('mod/wiki:editpage', $context); 883 } else if ($wiki->wikimode == 'individual') { 884 // Individual Mode 885 // There is a wiki per user 886 887 // Only the owner of that wiki can edit it 888 if ($subwiki->userid == $USER->id) { 889 return has_capability('mod/wiki:editpage', $context); 890 } else { // Current user is not the owner of that wiki. 891 892 // User must have: 893 // mod/wiki:editpage capability 894 // and 895 // mod/wiki:managewiki capability 896 $edit = has_capability('mod/wiki:editpage', $context); 897 $manage = has_capability('mod/wiki:managewiki', $context); 898 899 return $edit && $manage; 900 } 901 } else { 902 //Error 903 return false; 904 } 905 case SEPARATEGROUPS: 906 if ($wiki->wikimode == 'collaborative') { 907 // Collaborative Mode: 908 // There is one wiki per group. 909 // 910 // Only members of subwiki group could edit that wiki 911 if ($subwiki->groupid == groups_get_activity_group($cm)) { 912 // Only edit capability needed 913 return has_capability('mod/wiki:editpage', $context); 914 } else { // User is not part of that group 915 // User must have: 916 // mod/wiki:managewiki capability 917 // and 918 // moodle/site:accessallgroups capability 919 // and 920 // mod/wiki:editpage capability 921 $manage = has_capability('mod/wiki:managewiki', $context); 922 $access = has_capability('moodle/site:accessallgroups', $context); 923 $edit = has_capability('mod/wiki:editpage', $context); 924 return $manage && $access && $edit; 925 } 926 } else if ($wiki->wikimode == 'individual') { 927 // Individual Mode: 928 // Each person owns a wiki. 929 // 930 // Only the owner of that wiki can edit it 931 if ($subwiki->userid == $USER->id) { 932 return has_capability('mod/wiki:editpage', $context); 933 } else { // Current user is not the owner of that wiki. 934 // User must have: 935 // mod/wiki:managewiki capability 936 // and 937 // moodle/site:accessallgroups capability 938 // and 939 // mod/wiki:editpage capability 940 $manage = has_capability('mod/wiki:managewiki', $context); 941 $access = has_capability('moodle/site:accessallgroups', $context); 942 $edit = has_capability('mod/wiki:editpage', $context); 943 return $manage && $access && $edit; 944 } 945 } else { 946 //Error 947 return false; 948 } 949 case VISIBLEGROUPS: 950 if ($wiki->wikimode == 'collaborative') { 951 // Collaborative Mode: 952 // There is one wiki per group. 953 // 954 // Only members of subwiki group could edit that wiki 955 if (groups_is_member($subwiki->groupid)) { 956 // Only edit capability needed 957 return has_capability('mod/wiki:editpage', $context); 958 } else { // User is not part of that group 959 // User must have: 960 // mod/wiki:managewiki capability 961 // and 962 // mod/wiki:editpage capability 963 $manage = has_capability('mod/wiki:managewiki', $context); 964 $edit = has_capability('mod/wiki:editpage', $context); 965 return $manage && $edit; 966 } 967 } else if ($wiki->wikimode == 'individual') { 968 // Individual Mode: 969 // Each person owns a wiki. 970 // 971 // Only the owner of that wiki can edit it 972 if ($subwiki->userid == $USER->id) { 973 return has_capability('mod/wiki:editpage', $context); 974 } else { // Current user is not the owner of that wiki. 975 // User must have: 976 // mod/wiki:managewiki capability 977 // and 978 // mod/wiki:editpage capability 979 $manage = has_capability('mod/wiki:managewiki', $context); 980 $edit = has_capability('mod/wiki:editpage', $context); 981 return $manage && $edit; 982 } 983 } else { 984 //Error 985 return false; 986 } 987 default: // Error 988 return false; 989 } 990 } 991 992 //---------------- 993 // Locks 994 //---------------- 995 996 /** 997 * Checks if a page-section is locked. 998 * 999 * @return true if the combination of section and page is locked, FALSE otherwise. 1000 */ 1001 function wiki_is_page_section_locked($pageid, $userid, $section = null) { 1002 global $DB; 1003 1004 $sql = "pageid = ? AND lockedat > ? AND userid != ?"; 1005 $params = array($pageid, time(), $userid); 1006 1007 if (!empty($section)) { 1008 $sql .= " AND (sectionname = ? OR sectionname IS null)"; 1009 $params[] = $section; 1010 } 1011 1012 return $DB->record_exists_select('wiki_locks', $sql, $params); 1013 } 1014 1015 /** 1016 * Inserts or updates a wiki_locks record. 1017 */ 1018 function wiki_set_lock($pageid, $userid, $section = null, $insert = false) { 1019 global $DB; 1020 1021 if (wiki_is_page_section_locked($pageid, $userid, $section)) { 1022 return false; 1023 } 1024 1025 $params = array('pageid' => $pageid, 'userid' => $userid, 'sectionname' => $section); 1026 1027 $lock = $DB->get_record('wiki_locks', $params); 1028 1029 if (!empty($lock)) { 1030 $DB->update_record('wiki_locks', array('id' => $lock->id, 'lockedat' => time() + LOCK_TIMEOUT)); 1031 } else if ($insert) { 1032 $DB->insert_record('wiki_locks', array('pageid' => $pageid, 'sectionname' => $section, 'userid' => $userid, 'lockedat' => time() + 30)); 1033 } 1034 1035 return true; 1036 } 1037 1038 /** 1039 * Deletes wiki_locks that are not in use. (F.Ex. after submitting the changes). If no userid is present, it deletes ALL the wiki_locks of a specific page. 1040 * 1041 * @param int $pageid page id. 1042 * @param int $userid id of user for which lock is deleted. 1043 * @param string $section section to be deleted. 1044 * @param bool $delete_from_db deleted from db. 1045 * @param bool $delete_section_and_page delete section and page version. 1046 */ 1047 function wiki_delete_locks($pageid, $userid = null, $section = null, $delete_from_db = true, $delete_section_and_page = false) { 1048 global $DB; 1049 1050 $wiki = wiki_get_wiki_from_pageid($pageid); 1051 $cm = get_coursemodule_from_instance('wiki', $wiki->id); 1052 $context = context_module::instance($cm->id); 1053 1054 $params = array('pageid' => $pageid); 1055 1056 if (!empty($userid)) { 1057 $params['userid'] = $userid; 1058 } 1059 1060 if (!empty($section)) { 1061 $params['sectionname'] = $section; 1062 } 1063 1064 if ($delete_from_db) { 1065 $DB->delete_records('wiki_locks', $params); 1066 if ($delete_section_and_page && !empty($section)) { 1067 $params['sectionname'] = null; 1068 $DB->delete_records('wiki_locks', $params); 1069 } 1070 $event = \mod_wiki\event\page_locks_deleted::create( 1071 array( 1072 'context' => $context, 1073 'objectid' => $pageid, 1074 'relateduserid' => $userid, 1075 'other' => array( 1076 'section' => $section 1077 ) 1078 )); 1079 // No need to add snapshot, as important data is section, userid and pageid, which is part of event. 1080 $event->trigger(); 1081 } else { 1082 $DB->set_field('wiki_locks', 'lockedat', time(), $params); 1083 } 1084 } 1085 1086 /** 1087 * Deletes wiki_locks that expired 1 hour ago. 1088 */ 1089 function wiki_delete_old_locks() { 1090 global $DB; 1091 1092 $DB->delete_records_select('wiki_locks', "lockedat < ?", array(time() - 3600)); 1093 } 1094 1095 /** 1096 * Deletes wiki_links. It can be sepecific link or links attached in subwiki 1097 * 1098 * @global mixed $DB database object 1099 * @param int $linkid id of the link to be deleted 1100 * @param int $topageid links to the specific page 1101 * @param int $frompageid links from specific page 1102 * @param int $subwikiid links to subwiki 1103 */ 1104 function wiki_delete_links($linkid = null, $topageid = null, $frompageid = null, $subwikiid = null) { 1105 global $DB; 1106 $params = array(); 1107 1108 // if link id is givien then don't check for anything else 1109 if (!empty($linkid)) { 1110 $params['id'] = $linkid; 1111 } else { 1112 if (!empty($topageid)) { 1113 $params['topageid'] = $topageid; 1114 } 1115 if (!empty($frompageid)) { 1116 $params['frompageid'] = $frompageid; 1117 } 1118 if (!empty($subwikiid)) { 1119 $params['subwikiid'] = $subwikiid; 1120 } 1121 } 1122 1123 //Delete links if any params are passed, else nothing to delete. 1124 if (!empty($params)) { 1125 $DB->delete_records('wiki_links', $params); 1126 } 1127 } 1128 1129 /** 1130 * Delete wiki synonyms related to subwikiid or page 1131 * 1132 * @param int $subwikiid id of sunbwiki 1133 * @param int $pageid id of page 1134 */ 1135 function wiki_delete_synonym($subwikiid, $pageid = null) { 1136 global $DB; 1137 1138 $params = array('subwikiid' => $subwikiid); 1139 if (!is_null($pageid)) { 1140 $params['pageid'] = $pageid; 1141 } 1142 $DB->delete_records('wiki_synonyms', $params, IGNORE_MISSING); 1143 } 1144 1145 /** 1146 * Delete pages and all related data 1147 * 1148 * @param mixed $context context in which page needs to be deleted. 1149 * @param mixed $pageids id's of pages to be deleted 1150 * @param int $subwikiid id of the subwiki for which all pages should be deleted 1151 */ 1152 function wiki_delete_pages($context, $pageids = null, $subwikiid = null) { 1153 global $DB, $CFG; 1154 1155 if (!empty($pageids) && is_int($pageids)) { 1156 $pageids = array($pageids); 1157 } else if (!empty($subwikiid)) { 1158 $pageids = wiki_get_page_list($subwikiid); 1159 } 1160 1161 //If there is no pageid then return as we can't delete anything. 1162 if (empty($pageids)) { 1163 return; 1164 } 1165 1166 require_once($CFG->dirroot . '/tag/lib.php'); 1167 1168 /// Delete page and all it's relevent data 1169 foreach ($pageids as $pageid) { 1170 if (is_object($pageid)) { 1171 $pageid = $pageid->id; 1172 } 1173 1174 //Delete page comments 1175 $comments = wiki_get_comments($context->id, $pageid); 1176 foreach ($comments as $commentid => $commentvalue) { 1177 wiki_delete_comment($commentid, $context, $pageid); 1178 } 1179 1180 //Delete page tags 1181 $tags = tag_get_tags_array('wiki_pages', $pageid); 1182 foreach ($tags as $tagid => $tagvalue) { 1183 tag_delete_instance('wiki_pages', $pageid, $tagid); 1184 } 1185 1186 //Delete Synonym 1187 wiki_delete_synonym($subwikiid, $pageid); 1188 1189 //Delete all page versions 1190 wiki_delete_page_versions(array($pageid=>array(0)), $context); 1191 1192 //Delete all page locks 1193 wiki_delete_locks($pageid); 1194 1195 //Delete all page links 1196 wiki_delete_links(null, $pageid); 1197 1198 $params = array('id' => $pageid); 1199 1200 // Get page before deleting. 1201 $page = $DB->get_record('wiki_pages', $params); 1202 1203 //Delete page 1204 $DB->delete_records('wiki_pages', $params); 1205 1206 // Trigger page_deleted event. 1207 $event = \mod_wiki\event\page_deleted::create( 1208 array( 1209 'context' => $context, 1210 'objectid' => $pageid, 1211 'other' => array('subwikiid' => $subwikiid) 1212 )); 1213 $event->add_record_snapshot('wiki_pages', $page); 1214 $event->trigger(); 1215 } 1216 } 1217 1218 /** 1219 * Delete specificed versions of a page or versions created by users 1220 * if version is 0 then it will remove all versions of the page 1221 * 1222 * @param array $deleteversions delete versions for a page 1223 * @param context_module $context module context 1224 */ 1225 function wiki_delete_page_versions($deleteversions, $context = null) { 1226 global $DB; 1227 1228 /// delete page-versions 1229 foreach ($deleteversions as $id => $versions) { 1230 $params = array('pageid' => $id); 1231 if (is_null($context)) { 1232 $wiki = wiki_get_wiki_from_pageid($id); 1233 $cm = get_coursemodule_from_instance('wiki', $wiki->id); 1234 $context = context_module::instance($cm->id); 1235 } 1236 // Delete all versions, if version specified is 0. 1237 if (in_array(0, $versions)) { 1238 $oldversions = $DB->get_records('wiki_versions', $params); 1239 $DB->delete_records('wiki_versions', $params, IGNORE_MISSING); 1240 } else { 1241 list($insql, $param) = $DB->get_in_or_equal($versions); 1242 $insql .= ' AND pageid = ?'; 1243 array_push($param, $params['pageid']); 1244 $oldversions = $DB->get_recordset_select('wiki_versions', 'version ' . $insql, $param); 1245 $DB->delete_records_select('wiki_versions', 'version ' . $insql, $param); 1246 } 1247 foreach ($oldversions as $version) { 1248 // Trigger page version deleted event. 1249 $event = \mod_wiki\event\page_version_deleted::create( 1250 array( 1251 'context' => $context, 1252 'objectid' => $version->id, 1253 'other' => array( 1254 'pageid' => $id 1255 ) 1256 )); 1257 $event->add_record_snapshot('wiki_versions', $version); 1258 $event->trigger(); 1259 } 1260 } 1261 } 1262 1263 function wiki_get_comment($commentid){ 1264 global $DB; 1265 return $DB->get_record('comments', array('id' => $commentid)); 1266 } 1267 1268 /** 1269 * Returns all comments by context and pageid 1270 * 1271 * @param int $contextid Current context id 1272 * @param int $pageid Current pageid 1273 **/ 1274 function wiki_get_comments($contextid, $pageid) { 1275 global $DB; 1276 1277 return $DB->get_records('comments', array('contextid' => $contextid, 'itemid' => $pageid, 'commentarea' => 'wiki_page'), 'timecreated ASC'); 1278 } 1279 1280 /** 1281 * Add comments ro database 1282 * 1283 * @param object $context. Current context 1284 * @param int $pageid. Current pageid 1285 * @param string $content. Content of the comment 1286 * @param string editor. Version of editor we are using. 1287 **/ 1288 function wiki_add_comment($context, $pageid, $content, $editor) { 1289 global $CFG; 1290 require_once($CFG->dirroot . '/comment/lib.php'); 1291 1292 list($context, $course, $cm) = get_context_info_array($context->id); 1293 $cmt = new stdclass(); 1294 $cmt->context = $context; 1295 $cmt->itemid = $pageid; 1296 $cmt->area = 'wiki_page'; 1297 $cmt->course = $course; 1298 $cmt->component = 'mod_wiki'; 1299 1300 $manager = new comment($cmt); 1301 1302 if ($editor == 'creole') { 1303 $manager->add($content, FORMAT_CREOLE); 1304 } else if ($editor == 'html') { 1305 $manager->add($content, FORMAT_HTML); 1306 } else if ($editor == 'nwiki') { 1307 $manager->add($content, FORMAT_NWIKI); 1308 } 1309 1310 } 1311 1312 /** 1313 * Delete comments from database 1314 * 1315 * @param $idcomment. Id of comment which will be deleted 1316 * @param $context. Current context 1317 * @param $pageid. Current pageid 1318 **/ 1319 function wiki_delete_comment($idcomment, $context, $pageid) { 1320 global $CFG; 1321 require_once($CFG->dirroot . '/comment/lib.php'); 1322 1323 list($context, $course, $cm) = get_context_info_array($context->id); 1324 $cmt = new stdClass(); 1325 $cmt->context = $context; 1326 $cmt->itemid = $pageid; 1327 $cmt->area = 'wiki_page'; 1328 $cmt->course = $course; 1329 $cmt->component = 'mod_wiki'; 1330 1331 $manager = new comment($cmt); 1332 $manager->delete($idcomment); 1333 1334 } 1335 1336 /** 1337 * Delete al comments from wiki 1338 * 1339 **/ 1340 function wiki_delete_comments_wiki() { 1341 global $PAGE, $DB; 1342 1343 $cm = $PAGE->cm; 1344 $context = context_module::instance($cm->id); 1345 1346 $table = 'comments'; 1347 $select = 'contextid = ?'; 1348 1349 $DB->delete_records_select($table, $select, array($context->id)); 1350 1351 } 1352 1353 function wiki_add_progress($pageid, $oldversionid, $versionid, $progress) { 1354 global $DB; 1355 for ($v = $oldversionid + 1; $v <= $versionid; $v++) { 1356 $user = wiki_get_wiki_page_id($pageid, $v); 1357 1358 $DB->insert_record('wiki_progress', array('userid' => $user->userid, 'pageid' => $pageid, 'versionid' => $v, 'progress' => $progress)); 1359 } 1360 } 1361 1362 function wiki_get_wiki_page_id($pageid, $id) { 1363 global $DB; 1364 return $DB->get_record('wiki_versions', array('pageid' => $pageid, 'id' => $id)); 1365 } 1366 1367 function wiki_print_page_content($page, $context, $subwikiid) { 1368 global $OUTPUT, $CFG; 1369 1370 if ($page->timerendered + WIKI_REFRESH_CACHE_TIME < time()) { 1371 $content = wiki_refresh_cachedcontent($page); 1372 $page = $content['page']; 1373 } 1374 1375 if (isset($content)) { 1376 $box = ''; 1377 foreach ($content['sections'] as $s) { 1378 $box .= '<p>' . get_string('repeatedsection', 'wiki', $s) . '</p>'; 1379 } 1380 1381 if (!empty($box)) { 1382 echo $OUTPUT->box($box); 1383 } 1384 } 1385 $html = file_rewrite_pluginfile_urls($page->cachedcontent, 'pluginfile.php', $context->id, 'mod_wiki', 'attachments', $subwikiid); 1386 $html = format_text($html, FORMAT_MOODLE, array('overflowdiv'=>true, 'allowid'=>true)); 1387 echo $OUTPUT->box($html); 1388 1389 if (!empty($CFG->usetags)) { 1390 $tags = tag_get_tags_array('wiki_pages', $page->id); 1391 echo $OUTPUT->container_start('wiki-tags'); 1392 echo '<span class="wiki-tags-title">'.get_string('tags').': </span>'; 1393 $links = array(); 1394 foreach ($tags as $tagid=>$tag) { 1395 $url = new moodle_url('/tag/index.php', array('tag'=>$tag)); 1396 $links[] = html_writer::link($url, $tag, array('title'=>get_string('tagtitle', 'wiki', $tag))); 1397 } 1398 echo join($links, ", "); 1399 echo $OUTPUT->container_end(); 1400 } 1401 1402 wiki_increment_pageviews($page); 1403 } 1404 1405 /** 1406 * This function trims any given text and returns it with some dots at the end 1407 * 1408 * @param string $text 1409 * @param string $limit 1410 * 1411 * @return string 1412 */ 1413 function wiki_trim_string($text, $limit = 25) { 1414 1415 if (core_text::strlen($text) > $limit) { 1416 $text = core_text::substr($text, 0, $limit) . '...'; 1417 } 1418 1419 return $text; 1420 } 1421 1422 /** 1423 * Prints default edit form fields and buttons 1424 * 1425 * @param string $format Edit form format (html, creole...) 1426 * @param integer $version Version number. A negative number means no versioning. 1427 */ 1428 1429 function wiki_print_edit_form_default_fields($format, $pageid, $version = -1, $upload = false, $deleteuploads = array()) { 1430 global $CFG, $PAGE, $OUTPUT; 1431 1432 echo '<input type="hidden" name="sesskey" value="' . sesskey() . '" />'; 1433 1434 if ($version >= 0) { 1435 echo '<input type="hidden" name="version" value="' . $version . '" />'; 1436 } 1437 1438 echo '<input type="hidden" name="format" value="' . $format . '"/>'; 1439 1440 //attachments 1441 require_once($CFG->dirroot . '/lib/form/filemanager.php'); 1442 1443 $filemanager = new MoodleQuickForm_filemanager('attachments', get_string('wikiattachments', 'wiki'), array('id' => 'attachments'), array('subdirs' => false, 'maxfiles' => 99, 'maxbytes' => $CFG->maxbytes)); 1444 1445 $value = file_get_submitted_draft_itemid('attachments'); 1446 if (!empty($value) && !$upload) { 1447 $filemanager->setValue($value); 1448 } 1449 1450 echo "<fieldset class=\"wiki-upload-section clearfix\"><legend class=\"ftoggler\">" . get_string("uploadtitle", 'wiki') . "</legend>"; 1451 1452 echo $OUTPUT->container_start('mdl-align wiki-form-center aaaaa'); 1453 print $filemanager->toHtml(); 1454 echo $OUTPUT->container_end(); 1455 1456 $cm = $PAGE->cm; 1457 $context = context_module::instance($cm->id); 1458 1459 echo $OUTPUT->container_start('mdl-align wiki-form-center wiki-upload-table'); 1460 wiki_print_upload_table($context, 'wiki_upload', $pageid, $deleteuploads); 1461 echo $OUTPUT->container_end(); 1462 1463 echo "</fieldset>"; 1464 1465 echo '<input class="wiki_button" type="submit" name="editoption" value="' . get_string('save', 'wiki') . '"/>'; 1466 echo '<input class="wiki_button" type="submit" name="editoption" value="' . get_string('upload', 'wiki') . '"/>'; 1467 echo '<input class="wiki_button" type="submit" name="editoption" value="' . get_string('preview') . '"/>'; 1468 echo '<input class="wiki_button" type="submit" name="editoption" value="' . get_string('cancel') . '" />'; 1469 } 1470 1471 /** 1472 * Prints a table with the files attached to a wiki page 1473 * @param object $context 1474 * @param string $filearea 1475 * @param int $fileitemid 1476 * @param array deleteuploads 1477 */ 1478 function wiki_print_upload_table($context, $filearea, $fileitemid, $deleteuploads = array()) { 1479 global $CFG, $OUTPUT; 1480 1481 $htmltable = new html_table(); 1482 1483 $htmltable->head = array(get_string('deleteupload', 'wiki'), get_string('uploadname', 'wiki'), get_string('uploadactions', 'wiki')); 1484 1485 $fs = get_file_storage(); 1486 $files = $fs->get_area_files($context->id, 'mod_wiki', $filearea, $fileitemid); //TODO: this is weird (skodak) 1487 1488 foreach ($files as $file) { 1489 if (!$file->is_directory()) { 1490 $checkbox = '<input type="checkbox" name="deleteupload[]", value="' . $file->get_pathnamehash() . '"'; 1491 1492 if (in_array($file->get_pathnamehash(), $deleteuploads)) { 1493 $checkbox .= ' checked="checked"'; 1494 } 1495 1496 $checkbox .= " />"; 1497 1498 $htmltable->data[] = array($checkbox, '<a href="' . file_encode_url($CFG->wwwroot . '/pluginfile.php', '/' . $context->id . '/wiki_upload/' . $fileitemid . '/' . $file->get_filename()) . '">' . $file->get_filename() . '</a>', ""); 1499 } 1500 } 1501 1502 print '<h3 class="upload-table-title">' . get_string('uploadfiletitle', 'wiki') . "</h3>"; 1503 print html_writer::table($htmltable); 1504 } 1505 1506 /** 1507 * Generate wiki's page tree 1508 * 1509 * @param page_wiki $page. A wiki page object 1510 * @param navigation_node $node. Starting navigation_node 1511 * @param array $keys. An array to store keys 1512 * @return an array with all tree nodes 1513 */ 1514 function wiki_build_tree($page, $node, &$keys) { 1515 $content = array(); 1516 static $icon = null; 1517 if ($icon === null) { 1518 // Substitute the default navigation icon with empty image. 1519 $icon = new pix_icon('spacer', ''); 1520 } 1521 $pages = wiki_get_linked_pages($page->id); 1522 foreach ($pages as $p) { 1523 $key = $page->id . ':' . $p->id; 1524 if (in_array($key, $keys)) { 1525 break; 1526 } 1527 array_push($keys, $key); 1528 $l = wiki_parser_link($p); 1529 $link = new moodle_url('/mod/wiki/view.php', array('pageid' => $p->id)); 1530 // navigation_node::get_content will format the title for us 1531 $nodeaux = $node->add($p->title, $link, null, null, null, $icon); 1532 if ($l['new']) { 1533 $nodeaux->add_class('wiki_newentry'); 1534 } 1535 wiki_build_tree($p, $nodeaux, $keys); 1536 } 1537 $content[] = $node; 1538 return $content; 1539 } 1540 1541 /** 1542 * Get linked pages from page 1543 * @param int $pageid 1544 */ 1545 function wiki_get_linked_pages($pageid) { 1546 global $DB; 1547 1548 $sql = "SELECT p.id, p.title 1549 FROM {wiki_pages} p 1550 JOIN {wiki_links} l ON l.topageid = p.id 1551 WHERE l.frompageid = ? 1552 ORDER BY p.title ASC"; 1553 return $DB->get_records_sql($sql, array($pageid)); 1554 } 1555 1556 /** 1557 * Get updated pages from wiki 1558 * @param int $pageid 1559 */ 1560 function wiki_get_updated_pages_by_subwiki($swid) { 1561 global $DB, $USER; 1562 1563 $sql = "SELECT * 1564 FROM {wiki_pages} 1565 WHERE subwikiid = ? AND timemodified > ? 1566 ORDER BY timemodified DESC"; 1567 return $DB->get_records_sql($sql, array($swid, $USER->lastlogin)); 1568 }
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| Generated: Fri Nov 28 20:29:05 2014 | Cross-referenced by PHPXref 0.7.1 |