mod/choice/db/postgres7.php

   1 <?php // $Id$
   2
   3 // THIS FILE IS DEPRECATED!  PLEASE DO NOT MAKE CHANGES TO IT!
   4 //
   5 // IT IS USED ONLY FOR UPGRADES FROM BEFORE MOODLE 1.7, ALL
   6 // LATER CHANGES SHOULD USE upgrade.php IN THIS DIRECTORY.
   7
   8 function choice_upgrade($oldversion) {
   9
  10     global $CFG;
  11
  12 // This function does anything necessary to upgrade
  13 // older versions to match current functionality
  14
  15     if ($oldversion < 2003010100) {
  16         execute_sql(" ALTER TABLE `choice` ADD `format` INTEGER DEFAULT '0' NOT NULL AFTER `text` ");
  17         execute_sql(" ALTER TABLE `choice` ADD `publish` INTEGER DEFAULT '0' NOT NULL AFTER `answer6` ");
  18     }
  19     if ($oldversion < 2004010100) {
  20         table_column("choice", "", "showunanswered", "integer", "4", "unsigned", "0", "", "publish");
  21     }
  22     if ($oldversion < 2004021700) {
  23         modify_database("", "INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('choice', 'choose', 'choice', 'name');");
  24         modify_database("", "INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('choice', 'choose again', 'choice', 'name');");
  25     }
  26     if ($oldversion < 2004070100) {
  27         table_column("choice", "", "timeclose", "integer", "10", "unsigned", "0", "", "showunanswered");
  28         table_column("choice", "", "timeopen", "integer", "10", "unsigned", "0", "", "showunanswered");
  29     }
  30     if ($oldversion < 2004070101) {
  31         table_column("choice", "", "release", "integer", "2", "unsigned", "0", "", "publish");
  32         table_column("choice", "", "allowupdate", "integer", "2", "unsigned", "0", "", "release");
  33     }
  34     if ($oldversion < 2004070102) {
  35         modify_database("", "UPDATE prefix_choice SET allowupdate = '1' WHERE publish = 0;");
  36         modify_database("", "UPDATE prefix_choice SET release = '1' WHERE publish > 0;");
  37         modify_database("", "UPDATE prefix_choice SET publish = publish - 1 WHERE publish > 0;");
  38     }
  39
  40     if ($oldversion < 2004111200) { // drop first to avoid conflicts when upgrading from 1.4+
  41         execute_sql("DROP INDEX {$CFG->prefix}choice_course_idx;",false);
  42         execute_sql("DROP INDEX {$CFG->prefix}choice_answers_choice_idx;",false);
  43         execute_sql("DROP INDEX {$CFG->prefix}choice_answers_userid_idx;",false);
  44
  45         modify_database('','CREATE INDEX prefix_choice_course_idx ON prefix_choice (course);');
  46         modify_database('','CREATE INDEX prefix_choice_answers_choice_idx ON prefix_choice_answers (choice);');
  47         modify_database('','CREATE INDEX prefix_choice_answers_userid_idx ON prefix_choice_answers (userid);');
  48     }
  49     if ($oldversion < 2005033000){
  50         if (execute_sql("CREATE TABLE {$CFG->prefix}choice_options (id SERIAL PRIMARY KEY, choiceid integer NOT NULL default '0', text TEXT, timemodified integer NOT NULL default '0');") ) {
  51             execute_sql("CREATE INDEX {$CFG->prefix}choice_options_choice_idx ON {$CFG->prefix}choice_options (choiceid);");
  52
  53             table_column('choice_answers', 'choice', 'choiceid', 'integer', '10', 'unsigned', 0, 'not null');
  54             table_column('choice_answers', 'answer', 'optionid', 'integer', '10', 'unsigned', 0, 'not null');
  55             table_column('choice', '', 'display', 'integer', '4', 'unsigned', 0, 'not null', 'release');
  56
  57             // move old answers from choice to choice_options
  58             if ($choices = get_records('choice')) {
  59                 foreach ($choices as $choice) {
  60                     for ($i=1; $i<=6; $i++) {      // We used to have six columns
  61                         $option = new stdClass;
  62                         $option->text         = addslashes($choice->{'answer'.$i});
  63                         if ($option->text) {   /// Don't bother with blank options
  64                             $option->choiceid     = $choice->id;
  65                             $option->timemodified = $choice->timemodified;
  66                             if ($option->id = insert_record('choice_options', $option)) {
  67                                 /// Update all the user answers to fit the new value
  68                                 execute_sql("UPDATE {$CFG->prefix}choice_answers
  69                                                 SET optionid={$option->id}
  70                                               WHERE choiceid={$choice->id}
  71                                                 AND optionid={$i}");
  72                             }
  73                         }
  74                     }
  75                 }
  76             }
  77
  78       // drop old fields
  79          modify_database('','ALTER TABLE prefix_choice DROP answer1;');
  80          modify_database('','ALTER TABLE prefix_choice DROP answer2;');
  81          modify_database('','ALTER TABLE prefix_choice DROP answer3;');
  82          modify_database('','ALTER TABLE prefix_choice DROP answer4;');
  83          modify_database('','ALTER TABLE prefix_choice DROP answer5;');
  84          modify_database('','ALTER TABLE prefix_choice DROP answer6;');
  85
  86        }
  87     }
  88
  89     if ($oldversion < 2005041100) { // replace wiki-like with markdown
  90         include_once( "$CFG->dirroot/lib/wiki_to_markdown.php" );
  91         $wtm = new WikiToMarkdown();
  92         $wtm->update( 'choice','text','format' );
  93     }
  94     if ($oldversion < 2005041500) { //new limit feature
  95         table_column('choice', '', 'limitanswers', 'INTEGER', '2', 'unsigned', 0, 'not null', 'showunanswered');
  96         table_column('choice_options', '', 'maxanswers', 'INTEGER', '10', 'unsigned', 0, 'null', 'text');
  97     }
  98
  99     if ($oldversion < 2005041501) { // Mass cleanup of bad upgrade scripts
 100         modify_database('','CREATE INDEX prefix_choice_answers_choice_idx ON prefix_choice_answers (choiceid)');
 101         notify('The above error can be ignored if the index already exists, its possible that it was cleaned up already before running this upgrade');
 102         modify_database('','ALTER TABLE prefix_choice ALTER display SET NOT NULL');
 103         modify_database('','ALTER TABLE prefix_choice ALTER limitanswers SET NOT NULL');
 104         modify_database('','ALTER TABLE prefix_choice_answers ALTER choiceid SET NOT NULL');
 105         modify_database('','ALTER TABLE prefix_choice_answers ALTER optionid SET NOT NULL');
 106     }
 107     if ($oldversion < 2006020900) { //rename release column to showanswers - Release is now reserved word in mySql
 108         table_column('choice', 'release', 'showresults', 'TINYINT', '2', 'unsigned', 0, 'not null');
 109     }
 110
 111     //////  DO NOT ADD NEW THINGS HERE!!  USE upgrade.php and the lib/ddllib.php functions.
 112
 113     return true;
 114 }
 115
 116 ?>