mirror of
https://github.com/moodle/moodle.git
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c8e0b57900
NEW: The code now supports dynamically plugging your own Pages and block position identifiers into Moodle without messing with the main libraries at all. UPDATE: Many functions in blocklib now use pass-by-reference for speed. UPDATE: Class MoodlePage has been made more presentable and robust.
131 lines
4.9 KiB
PHP
131 lines
4.9 KiB
PHP
<?PHP //$Id$
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//
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// This file keeps track of upgrades to Moodle's
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// blocks system.
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//
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// Sometimes, changes between versions involve
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// alterations to database structures and other
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// major things that may break installations.
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//
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// The upgrade function in this file will attempt
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// to perform all the necessary actions to upgrade
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// your older installtion to the current version.
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//
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// If there's something it cannot do itself, it
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// will tell you what you need to do.
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//
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// Versions are defined by backup_version.php
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//
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// This file is tailored to PostgreSQL
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function blocks_upgrade($oldversion=0) {
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global $CFG;
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$result = true;
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if ($oldversion < 2004041000 and $result) {
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$result = execute_sql("
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CREATE TABLE {$CFG->prefix}blocks
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(
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id SERIAL8 PRIMARY KEY,
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name varchar(40) NOT NULL default '',
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version INT8 NOT NULL default '0',
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cron INT8 NOT NULL default '0',
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lastcron INT8 NOT NULL default '0',
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visible int NOT NULL default '1'
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)
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") ;
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}
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if ($oldversion < 2004101900 && $result) {
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$result = execute_sql("CREATE TABLE {$CFG->prefix}block (
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id SERIAL8 PRIMARY KEY,
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name varchar(40) NOT NULL default '',
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version INT8 NOT NULL default '0',
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cron INT8 NOT NULL default '0',
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lastcron INT8 NOT NULL default '0',
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visible int NOT NULL default '1',
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multiple int NOT NULL default '0'
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)
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");
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if(!$result) {
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return false;
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}
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$records = get_records('blocks');
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if(!empty($records)) {
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foreach($records as $block) {
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$block->multiple = 0;
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insert_record('block', $block);
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}
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}
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execute_sql("DROP TABLE {$CFG->prefix}blocks");
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$result = execute_sql("CREATE TABLE {$CFG->prefix}block_instance (
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id SERIAL8 PRIMARY KEY,
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blockid INT8 not null default '0',
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pageid INT8 not null default '0',
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pagetype varchar(12) not null check (pagetype in ('course')),
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position char not null check (position in ('l', 'r')) ,
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weight int not null default '0',
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visible int not null default '0',
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configdata text not null default ''
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)");
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if(!$result) {
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return false;
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}
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$records = get_records('course');
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if(!empty($records)) {
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foreach($records as $thiscourse) {
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// The @ suppresses a notice emitted if there is no : in the string
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@list($left, $right) = split(':', $thiscourse->blockinfo);
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if(!empty($left)) {
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$arr = explode(',', $left);
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foreach($arr as $weight => $blk) {
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$instance = new stdClass;
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$instance->blockid = abs($blk);
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$instance->pageid = $thiscourse->id;
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$instance->pagetype = MOODLE_PAGE_COURSE;
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$instance->position = BLOCK_POS_LEFT;
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$instance->weight = $weight;
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$instance->visible = ($blk > 0) ? 1 : 0;
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$instance->configdata = '';
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insert_record('block_instance', $instance);
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}
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}
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if(!empty($right)) {
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$arr = explode(',', $right);
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foreach($arr as $weight => $blk) {
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$instance = new stdClass;
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$instance->blockid = abs($blk);
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$instance->pageid = $thiscourse->id;
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$instance->pagetype = MOODLE_PAGE_COURSE;
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$instance->position = BLOCK_POS_RIGHT;
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$instance->weight = $weight;
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$instance->visible = ($blk > 0) ? 1 : 0;
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$instance->configdata = '';
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insert_record('block_instance', $instance);
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}
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}
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}
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}
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execute_sql("ALTER TABLE {$CFG->prefix}course DROP COLUMN blockinfo");
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}
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if ($oldversion < 2004112900 && $result) {
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$result = $result && table_column('block_instance', 'pagetype', 'pagetype', 'varchar', '20', '');
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$result = $result && table_column('block_instance', 'position', 'position', 'varchar', '10', '');
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}
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//Finally, return result
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return $result;
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}
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?>
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