mod/glossary/db/upgrade.php

   1 <?php  //$Id$
   2
   3 // This file keeps track of upgrades to
   4 // the glossary module
   5 //
   6 // Sometimes, changes between versions involve
   7 // alterations to database structures and other
   8 // major things that may break installations.
   9 //
  10 // The upgrade function in this file will attempt
  11 // to perform all the necessary actions to upgrade
  12 // your older installtion to the current version.
  13 //
  14 // If there's something it cannot do itself, it
  15 // will tell you what you need to do.
  16 //
  17 // The commands in here will all be database-neutral,
  18 // using the functions defined in lib/ddllib.php
  19
  20 function xmldb_glossary_upgrade($oldversion=0) {
  21
  22     global $CFG, $THEME, $db;
  23
  24     $result = true;
  25
  26 /// And upgrade begins here. For each one, you'll need one
  27 /// block of code similar to the next one. Please, delete
  28 /// this comment lines once this file start handling proper
  29 /// upgrade code.
  30
  31 /// if ($result && $oldversion < YYYYMMDD00) { //New version in version.php
  32 ///     $result = result of "/lib/ddllib.php" function calls
  33 /// }
  34
  35     if ($result && $oldversion < 2006111400) {
  36
  37     /// MDL-10475, set override for legacy:student before dropping studentcanpost
  38     /// if the glossary disables student postings
  39
  40         if ($glossaries = get_records('glossary', 'studentcanpost', '0')) {
  41             foreach ($glossaries as $glossary) {
  42                 if ($cm = get_coursemodule_from_instance('glossary', $glossary->id)) {
  43                     // add student override in this instance
  44                     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  45                     // find all roles with legacy:student
  46                     if ($studentroles = get_roles_with_capability('moodle/legacy:student', CAP_ALLOW)) {
  47                         foreach ($studentroles as $studentrole) {
  48                             assign_capability('mod/glossary:write', CAP_PREVENT, $studentrole->id, $context->id);
  49                         }
  50                     }
  51                 }
  52             }
  53         }
  54
  55     /// Define field studentcanpost to be dropped from glossary
  56         $table = new XMLDBTable('glossary');
  57         $field = new XMLDBField('studentcanpost');
  58
  59     /// Launch drop field studentcanpost
  60         $result = $result && drop_field($table, $field);
  61     }
  62
  63     if ($result && $oldversion < 2007072200) {
  64         require_once($CFG->dirroot.'/mod/glossary/lib.php');
  65         // too much debug output
  66         $db->debug = false;
  67         glossary_update_grades();
  68         $db->debug = true;
  69     }
  70
  71     return $result;
  72 }
  73
  74 ?>