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Developer Documentation


Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
  • /blog/ -> index.php (source)

    Differences Between: [Versions 32 and 39] [Versions 33 and 39] [Versions 34 and 39] [Versions 35 and 39]

       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   * file index.php
      19   * index page to view blogs. if no blog is specified then site wide entries are shown
      20   * if a blog id is specified then the latest entries from that blog are shown
      21   */
      22  
      23  require_once(__DIR__ . '/../config.php');
      24  require_once($CFG->dirroot .'/blog/lib.php');
      25  require_once($CFG->dirroot .'/blog/locallib.php');
      26  require_once($CFG->dirroot .'/course/lib.php');
      27  require_once($CFG->dirroot .'/comment/lib.php');
      28  
      29  $id       = optional_param('id', null, PARAM_INT);
      30  $start    = optional_param('formstart', 0, PARAM_INT);
      31  $tag      = optional_param('tag', '', PARAM_NOTAGS);
      32  $userid   = optional_param('userid', null, PARAM_INT);
      33  $tagid    = optional_param('tagid', null, PARAM_INT);
      34  $modid    = optional_param('modid', null, PARAM_INT);
      35  $entryid  = optional_param('entryid', null, PARAM_INT);
      36  $groupid  = optional_param('groupid', null, PARAM_INT);
      37  $courseid = optional_param('courseid', null, PARAM_INT);
      38  $search   = optional_param('search', null, PARAM_RAW);
      39  
      40  comment::init();
      41  
      42  $urlparams = compact('id', 'start', 'tag', 'userid', 'tagid', 'modid', 'entryid', 'groupid', 'courseid', 'search');
      43  foreach ($urlparams as $var => $val) {
      44      if (empty($val)) {
      45          unset($urlparams[$var]);
      46      }
      47  }
      48  $PAGE->set_url('/blog/index.php', $urlparams);
      49  
      50  // Correct tagid if a text tag is provided as a param.
      51  if (!empty($tag)) {
      52      if ($tagrec = $DB->get_record('tag', array('name' => $tag))) {
      53          $tagid = $tagrec->id;
      54      } else {
      55          unset($tagid);
      56      }
      57  }
      58  
      59  // Set the userid to the entry author if we have the entry ID.
      60  if ($entryid and !isset($userid)) {
      61      $entry = new blog_entry($entryid);
      62      $userid = $entry->userid;
      63  }
      64  
      65  if (isset($userid) && empty($courseid) && empty($modid)) {
      66      $context = context_user::instance($userid);
      67  } else if (!empty($courseid) && $courseid != SITEID) {
      68      $context = context_course::instance($courseid);
      69  } else {
      70      $context = context_system::instance();
      71  }
      72  $PAGE->set_context($context);
      73  
      74  if (isset($userid) && $USER->id == $userid) {
      75      $blognode = $PAGE->navigation->find('siteblog', null);
      76      if ($blognode) {
      77          $blognode->make_inactive();
      78      }
      79  }
      80  
      81  // Check basic permissions.
      82  if ($CFG->bloglevel == BLOG_GLOBAL_LEVEL) {
      83      // Everybody can see anything - no login required unless site is locked down using forcelogin.
      84      if ($CFG->forcelogin) {
      85          require_login();
      86      }
      87  
      88  } else if ($CFG->bloglevel == BLOG_SITE_LEVEL) {
      89      // Users must log in and can not be guests.
      90      require_login();
      91      if (isguestuser()) {
      92          // They must have entered the url manually.
      93          print_error('noguest');
      94      }
      95  
      96  } else if ($CFG->bloglevel == BLOG_USER_LEVEL) {
      97      // Users can see own blogs only! with the exception of people with special cap.
      98      require_login();
      99  
     100  } else {
     101      // Weird!
     102      print_error('blogdisable', 'blog');
     103  }
     104  
     105  if (empty($CFG->enableblogs)) {
     106      print_error('blogdisable', 'blog');
     107  }
     108  
     109  list($courseid, $userid) = blog_validate_access($courseid, $modid, $groupid, $entryid, $userid);
     110  
     111  $courseid = (empty($courseid)) ? SITEID : $courseid;
     112  
     113  if ($courseid != SITEID) {
     114      $course = get_course($courseid);
     115      require_login($course);
     116  }
     117  
     118  if (!empty($userid)) {
     119      $user = core_user::get_user($userid);
     120      $PAGE->navigation->extend_for_user($user);
     121  }
     122  
     123  $blogheaders = blog_get_headers();
     124  
     125  $rsscontext = null;
     126  $filtertype = null;
     127  $thingid = null;
     128  $rsstitle = '';
     129  if ($CFG->enablerssfeeds) {
     130      list($thingid, $rsscontext, $filtertype) = blog_rss_get_params($blogheaders['filters']);
     131      if (empty($rsscontext)) {
     132          $rsscontext = context_system::instance();
     133      }
     134      $rsstitle = $blogheaders['heading'];
     135  
     136      // Check we haven't started output by outputting an error message.
     137      if ($PAGE->state == moodle_page::STATE_BEFORE_HEADER) {
     138          blog_rss_add_http_header($rsscontext, $rsstitle, $filtertype, $thingid, $tagid);
     139      }
     140  }
     141  
     142  $usernode = $PAGE->navigation->find('user'.$userid, null);
     143  if ($usernode && $courseid != SITEID) {
     144      $courseblogsnode = $PAGE->navigation->find('courseblogs', null);
     145      if ($courseblogsnode) {
     146          $courseblogsnode->remove();
     147      }
     148      $blogurl = new moodle_url($PAGE->url);
     149      $blognode = $usernode->add(get_string('blogscourse', 'blog'), $blogurl);
     150      $blognode->make_active();
     151  }
     152  
     153  if ($courseid != SITEID) {
     154      $PAGE->set_heading($course->fullname);
     155      echo $OUTPUT->header();
     156      if (!empty($user)) {
     157          $headerinfo = array('heading' => fullname($user), 'user' => $user);
     158          echo $OUTPUT->context_header($headerinfo, 2);
     159      }
     160  } else if (isset($userid)) {
     161      $PAGE->set_heading(fullname($user));
     162      echo $OUTPUT->header();
     163  } else if ($courseid == SITEID) {
     164      echo $OUTPUT->header();
     165  }
     166  
     167  echo $OUTPUT->heading($blogheaders['heading'], 2);
     168  
     169  $bloglisting = new blog_listing($blogheaders['filters']);
     170  $bloglisting->print_entries();
     171  
     172  if ($CFG->enablerssfeeds) {
     173      blog_rss_print_link($rsscontext, $filtertype, $thingid, $tagid, get_string('rssfeed', 'blog'));
     174  }
     175  
     176  echo $OUTPUT->footer();
     177  $eventparams = array(
     178      'other' => array('entryid' => $entryid, 'tagid' => $tagid, 'userid' => $userid, 'modid' => $modid, 'groupid' => $groupid,
     179                       'search' => $search, 'fromstart' => $start)
     180  );
     181  if (!empty($userid)) {
     182      $eventparams['relateduserid'] = $userid;
     183  }
     184  $eventparams['other']['courseid'] = ($courseid === SITEID) ? 0 : $courseid;
     185  $event = \core\event\blog_entries_viewed::create($eventparams);
     186  $event->trigger();
    

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