admin/bloglevelupgrade.php

   1 <?php
   2       /// Create "blog" forums in each course and copy blog entries from these courses' participants in these forums
   3
   4 define('NO_OUTPUT_BUFFERING', true);
   5
   6 require_once('../config.php');
   7 require_once($CFG->dirroot.'/course/lib.php');
   8 require_once($CFG->dirroot.'/blog/lib.php');
   9 require_once($CFG->dirroot.'/mod/forum/lib.php');
  10 require_once($CFG->libdir.'/adminlib.php');
  11
  12 admin_externalpage_setup('bloglevelupgrade');
  13 $PAGE->set_pagelayout('maintenance');
  14
  15 $go = optional_param('go', 0, PARAM_BOOL);
  16
  17 echo $OUTPUT->header();
  18 echo $OUTPUT->heading(get_string('bloglevelupgrade', 'admin'));
  19
  20 $strbloglevelupgrade = get_string('bloglevelupgradeinfo', 'admin');
  21
  22 if (!$go or !data_submitted() or !confirm_sesskey()) {   /// Print a form
  23     $optionsyes = array('go'=>1, 'sesskey'=>sesskey());
  24     echo $OUTPUT->confirm($strbloglevelupgrade, new moodle_url('bloglevelupgrade.php', $optionsyes), 'index.php');
  25     echo $OUTPUT->footer();
  26     die;
  27 }
  28
  29 echo $OUTPUT->box_start();
  30
  31 /// Turn off time limits, sometimes upgrades can be slow.
  32
  33 set_time_limit(0);
  34
  35 $i = 0;
  36
  37 // If $CFG->bloglevel is set to BLOG_GROUP_LEVEL or BLOG_COURSE_LEVEL, create a new "blog" forum in each course
  38 // whose enrolled students have written blog entries, copy these entries in that forum and switch off blogs at site level
  39
  40 if ($CFG->bloglevel == BLOG_COURSE_LEVEL || $CFG->bloglevel == BLOG_GROUP_LEVEL) {
  41     $pbar = new progress_bar('bloglevelupgrade', 500, true);
  42
  43     $bloggers = $DB->get_records_sql("SELECT userid FROM {post} WHERE module = 'blog' GROUP BY userid");
  44     require_once($CFG->dirroot.'/mod/forum/lib.php');
  45
  46     $a = new stdClass();
  47     $a->userscount = 0;
  48     $a->blogcount = 0;
  49
  50     foreach ($bloggers as $blogger) {
  51         $courses = enrol_get_users_courses($blogger->userid, true, 'groupmode,groupmodeforce');
  52         $blogentries = $DB->get_records('post', array('module' => 'blog', 'userid' => $blogger->userid));
  53
  54         foreach ($courses as $course) {
  55             $forum = forum_get_course_forum($course->id, 'blog');
  56             $cm = get_coursemodule_from_instance('forum', $forum->id);
  57
  58             if ($CFG->bloglevel == BLOG_GROUP_LEVEL && $course->groupmode != NOGROUPS) {
  59                 // Unless the course is set to separate groups forced, force the forum to Separate groups
  60                 if (!($course->groupmode == SEPARATEGROUPS && $course->groupmodeforce)) {
  61                     $cm->groupmode = SEPARATEGROUPS;
  62                     $DB->update_record('course_modules', $cm);
  63                 }
  64
  65                 $groups = groups_get_user_groups($course->id, $blogger->userid);
  66                 foreach ($groups[0] as $groupid) { // [0] is for all groupings combined
  67                     $a->blogcount += bloglevelupgrade_entries($blogentries, $forum, $cm, $groupid);
  68                 }
  69             } else {
  70                 $a->blogcount += bloglevelupgrade_entries($blogentries, $forum, $cm);
  71             }
  72         }
  73
  74         $a->userscount = $i . '/' .  count($bloggers);
  75         $pbar->update($i, count($bloggers), get_string('bloglevelupgradeprogress', 'admin', $a));
  76         $i++;
  77     }
  78 }
  79
  80 function bloglevelupgrade_entries($blogentries, $forum, $cm, $groupid=-1) {
  81     $count = 0;
  82
  83     $forumcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
  84     $sitecontext = get_context_instance(CONTEXT_SYSTEM);
  85
  86     foreach ($blogentries as $blogentry) {
  87         $discussion = new stdClass();
  88         $discussion->course = $forum->course;
  89         $discussion->forum = $forum->id;
  90         $discussion->name = $blogentry->subject;
  91         $discussion->assessed = $forum->assessed;
  92         $discussion->message = $blogentry->summary;
  93         $discussion->messageformat = $blogentry->summaryformat;
  94         $discussion->messagetrust = 0;
  95         $discussion->attachments = 0;
  96         $discussion->mailnow = false;
  97         $discussion->timemodified = $blogentry->created;
  98         $discussion->itemid = null;
  99         $discussion->groupid = $groupid;
 100         $message = '';
 101
 102         $discussionid = forum_add_discussion($discussion, null, $message);
 103
 104         // Copy file attachment records
 105         $fs = get_file_storage();
 106         $files = $fs->get_area_files($sitecontext->id, 'blog', 'attachment', $blogentry->id);
 107
 108         if (!empty($files)) {
 109             foreach ($files as $storedfile) {
 110                 $newfile = new stdClass();
 111                 $newfile->component = 'mod_forum';
 112                 $newfile->filearea = 'attachment';
 113                 $newfile->itemid = $discussion->firstpost;
 114                 $newfile->contextid = $forumcontext->id;
 115                 $fs->create_file_from_storedfile($newfile, $storedfile->get_id());
 116             }
 117         }
 118
 119         $files = $fs->get_area_files($sitecontext->id, 'blog', 'post', $blogentry->id);
 120
 121         if (!empty($files)) {
 122             foreach ($files as $storedfile) {
 123                 $newfile = new stdClass();
 124                 $newfile->component = 'mod_forum';
 125                 $newfile->filearea = 'post';
 126                 $newfile->itemid = $discussion->firstpost;
 127                 $newfile->contextid = $forumcontext->id;
 128                 $fs->create_file_from_storedfile($newfile, $storedfile->get_id());
 129             }
 130         }
 131         $count++;
 132     }
 133     return $count;
 134 }
 135 // END OF LOOP
 136
 137 // set conversion flag - switches to new plugin automatically
 138 set_config('bloglevel_upgrade_complete', 1);
 139 // Finally switch bloglevel to 0 (disabled)
 140 set_config('bloglevel', 0);
 141
 142 echo $OUTPUT->box_end();
 143
 144 /// Rebuild course cache which might be incorrect now
 145 echo $OUTPUT->notification('Rebuilding course cache...', 'notifysuccess');
 146 rebuild_course_cache();
 147 echo $OUTPUT->notification('...finished', 'notifysuccess');
 148
 149 echo $OUTPUT->continue_button('index.php');
 150
 151 echo $OUTPUT->footer();
 152 die;