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  • Bug fixes for general core bugs in 3.7.x will end 11 May 2020 (12 months).
  • Bug fixes for security issues in 3.7.x will end 9 November 2020 (18 months) - Support has ended.
  • minimum PHP 7.1.0 Note: minimum PHP version has increased since Moodle 3.6. PHP 7.2.x and 7.3.x are supported too. PHP 7.x could have some engine limitations.
  • /tag/ -> index.php (source)
       1  <?php
       2  // This file is part of Moodle - http://moodle.org/
       3  //
       4  // Moodle is free software: you can redistribute it and/or modify
       5  // it under the terms of the GNU General Public License as published by
       6  // the Free Software Foundation, either version 3 of the License, or
       7  // (at your option) any later version.
       8  //
       9  // Moodle is distributed in the hope that it will be useful,
      10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
      11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12  // GNU General Public License for more details.
      13  //
      14  // You should have received a copy of the GNU General Public License
      15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
      16  
      17  
      18  /**
      19   * @package    core_tag
      20   * @category   tag
      21   * @copyright  2007 Luiz Cruz <luiz.laydner@gmail.com>
      22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
      23   */
      24  
      25  require_once('../config.php');
      26  require_once($CFG->dirroot . '/lib/weblib.php');
      27  require_once($CFG->dirroot . '/blog/lib.php');
      28  
      29  require_login();
      30  
      31  if (empty($CFG->usetags)) {
      32      print_error('tagsaredisabled', 'tag');
      33  }
      34  
      35  $tagid       = optional_param('id', 0, PARAM_INT); // tag id
      36  $tagname     = optional_param('tag', '', PARAM_TAG); // tag
      37  $tagareaid   = optional_param('ta', 0, PARAM_INT); // Tag area id.
      38  $exclusivemode = optional_param('excl', 0, PARAM_BOOL); // Exclusive mode (show entities in one tag area only).
      39  $page        = optional_param('page', 0, PARAM_INT); // Page to display.
      40  $fromctx     = optional_param('from', null, PARAM_INT);
      41  $ctx         = optional_param('ctx', null, PARAM_INT);
      42  $rec         = optional_param('rec', 1, PARAM_INT);
      43  
      44  $edit        = optional_param('edit', -1, PARAM_BOOL);
      45  
      46  $systemcontext   = context_system::instance();
      47  
      48  if ($tagname) {
      49      $tagcollid = optional_param('tc', 0, PARAM_INT);
      50      if (!$tagcollid) {
      51          // Tag name specified but tag collection was not. Try to guess it.
      52          $tags = core_tag_tag::guess_by_name($tagname, '*');
      53          if (count($tags) > 1) {
      54              // This tag was found in more than one collection, redirect to search.
      55              redirect(new moodle_url('/tag/search.php', array('query' => $tagname)));
      56          } else if (count($tags) == 1) {
      57              $tag = reset($tags);
      58          }
      59      } else {
      60          if (!$tag = core_tag_tag::get_by_name($tagcollid, $tagname, '*')) {
      61              redirect(new moodle_url('/tag/search.php', array('tc' => $tagcollid, 'query' => $tagname)));
      62          }
      63      }
      64  } else if ($tagid) {
      65      $tag = core_tag_tag::get($tagid, '*');
      66  }
      67  unset($tagid);
      68  if (empty($tag)) {
      69      redirect(new moodle_url('/tag/search.php'));
      70  }
      71  
      72  if ($ctx && ($context = context::instance_by_id($ctx, IGNORE_MISSING)) && $context->contextlevel >= CONTEXT_COURSE) {
      73      list($context, $course, $cm) = get_context_info_array($context->id);
      74      require_login($course, false, $cm, false, true);
      75  } else {
      76      $PAGE->set_context($systemcontext);
      77  }
      78  
      79  $tagcollid = $tag->tagcollid;
      80  
      81  $PAGE->set_url($tag->get_view_url($exclusivemode, $fromctx, $ctx, $rec));
      82  $PAGE->set_subpage($tag->id);
      83  $tagnode = $PAGE->navigation->find('tags', null);
      84  $tagnode->make_active();
      85  $PAGE->set_pagelayout('standard');
      86  $PAGE->set_blocks_editing_capability('moodle/tag:editblocks');
      87  
      88  $buttons = '';
      89  if (has_capability('moodle/tag:manage', context_system::instance())) {
      90      $buttons .= $OUTPUT->single_button(new moodle_url('/tag/manage.php'),
      91              get_string('managetags', 'tag'), 'GET');
      92  }
      93  if ($PAGE->user_allowed_editing()) {
      94      if ($edit != -1) {
      95          $USER->editing = $edit;
      96      }
      97      $buttons .= $OUTPUT->edit_button(clone($PAGE->url));
      98  }
      99  
     100  $PAGE->navbar->add($tagname);
     101  $PAGE->set_title(get_string('tag', 'tag') .' - '. $tag->get_display_name());
     102  $PAGE->set_heading($COURSE->fullname);
     103  $PAGE->set_button($buttons);
     104  
     105  // Find all areas in this collection and their items tagged with this tag.
     106  $tagareas = core_tag_collection::get_areas($tagcollid);
     107  if ($tagareaid) {
     108      $tagareas = array_intersect_key($tagareas, array($tagareaid => 1));
     109  }
     110  if (!$tagareaid && count($tagareas) == 1) {
     111      // Automatically set "exclusive" mode for tag collection with one tag area only.
     112      $exclusivemode = 1;
     113  }
     114  $entities = array();
     115  foreach ($tagareas as $ta) {
     116      $entities[] = $tag->get_tag_index($ta, $exclusivemode, $fromctx, $ctx, $rec, $page);
     117  }
     118  $entities = array_filter($entities);
     119  
     120  $tagrenderer = $PAGE->get_renderer('core', 'tag');
     121  $pagecontents = $tagrenderer->tag_index_page($tag, array_filter($entities), $tagareaid,
     122          $exclusivemode, $fromctx, $ctx, $rec, $page);
     123  
     124  echo $OUTPUT->header();
     125  echo $pagecontents;
     126  echo $OUTPUT->footer();