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upgradelib.php
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upgradelib.php
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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Various upgrade/install related functions and classes.
*
* @package core
* @subpackage upgrade
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/** UPGRADE_LOG_NORMAL = 0 */
define('UPGRADE_LOG_NORMAL', 0);
/** UPGRADE_LOG_NOTICE = 1 */
define('UPGRADE_LOG_NOTICE', 1);
/** UPGRADE_LOG_ERROR = 2 */
define('UPGRADE_LOG_ERROR', 2);
/**
* Exception indicating unknown error during upgrade.
*
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class upgrade_exception extends moodle_exception {
function __construct($plugin, $version, $debuginfo=NULL) {
global $CFG;
$a = (object)array('plugin'=>$plugin, 'version'=>$version);
parent::__construct('upgradeerror', 'admin', "$CFG->wwwroot/$CFG->admin/index.php", $a, $debuginfo);
}
}
/**
* Exception indicating downgrade error during upgrade.
*
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class downgrade_exception extends moodle_exception {
function __construct($plugin, $oldversion, $newversion) {
global $CFG;
$plugin = is_null($plugin) ? 'moodle' : $plugin;
$a = (object)array('plugin'=>$plugin, 'oldversion'=>$oldversion, 'newversion'=>$newversion);
parent::__construct('cannotdowngrade', 'debug', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class upgrade_requires_exception extends moodle_exception {
function __construct($plugin, $pluginversion, $currentmoodle, $requiremoodle) {
global $CFG;
$a = new stdClass();
$a->pluginname = $plugin;
$a->pluginversion = $pluginversion;
$a->currentmoodle = $currentmoodle;
$a->requiremoodle = $requiremoodle;
parent::__construct('pluginrequirementsnotmet', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class plugin_defective_exception extends moodle_exception {
function __construct($plugin, $details) {
global $CFG;
parent::__construct('detectedbrokenplugin', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $plugin, $details);
}
}
/**
* Misplaced plugin exception.
*
* Note: this should be used only from the upgrade/admin code.
*
* @package core
* @subpackage upgrade
* @copyright 2009 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class plugin_misplaced_exception extends moodle_exception {
/**
* Constructor.
* @param string $component the component from version.php
* @param string $expected expected directory, null means calculate
* @param string $current plugin directory path
*/
public function __construct($component, $expected, $current) {
global $CFG;
if (empty($expected)) {
list($type, $plugin) = core_component::normalize_component($component);
$plugintypes = core_component::get_plugin_types();
if (isset($plugintypes[$type])) {
$expected = $plugintypes[$type] . '/' . $plugin;
}
}
if (strpos($expected, '$CFG->dirroot') !== 0) {
$expected = str_replace($CFG->dirroot, '$CFG->dirroot', $expected);
}
if (strpos($current, '$CFG->dirroot') !== 0) {
$current = str_replace($CFG->dirroot, '$CFG->dirroot', $current);
}
$a = new stdClass();
$a->component = $component;
$a->expected = $expected;
$a->current = $current;
parent::__construct('detectedmisplacedplugin', 'core_plugin', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* Sets maximum expected time needed for upgrade task.
* Please always make sure that upgrade will not run longer!
*
* The script may be automatically aborted if upgrade times out.
*
* @category upgrade
* @param int $max_execution_time in seconds (can not be less than 60 s)
*/
function upgrade_set_timeout($max_execution_time=300) {
global $CFG;
if (!isset($CFG->upgraderunning) or $CFG->upgraderunning < time()) {
$upgraderunning = get_config(null, 'upgraderunning');
} else {
$upgraderunning = $CFG->upgraderunning;
}
if (!$upgraderunning) {
if (CLI_SCRIPT) {
// never stop CLI upgrades
$upgraderunning = 0;
} else {
// web upgrade not running or aborted
print_error('upgradetimedout', 'admin', "$CFG->wwwroot/$CFG->admin/");
}
}
if ($max_execution_time < 60) {
// protection against 0 here
$max_execution_time = 60;
}
$expected_end = time() + $max_execution_time;
if ($expected_end < $upgraderunning + 10 and $expected_end > $upgraderunning - 10) {
// no need to store new end, it is nearly the same ;-)
return;
}
if (CLI_SCRIPT) {
// there is no point in timing out of CLI scripts, admins can stop them if necessary
set_time_limit(0);
} else {
set_time_limit($max_execution_time);
}
set_config('upgraderunning', $expected_end); // keep upgrade locked until this time
}
/**
* Upgrade savepoint, marks end of each upgrade block.
* It stores new main version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* Please do not make large upgrade blocks with lots of operations,
* for example when adding tables keep only one table operation per block.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_main_savepoint($result, $version, $allowabort=true) {
global $CFG;
//sanity check to avoid confusion with upgrade_mod_savepoint usage.
if (!is_bool($allowabort)) {
$errormessage = 'Parameter type mismatch. Are you mixing up upgrade_main_savepoint() and upgrade_mod_savepoint()?';
throw new coding_exception($errormessage);
}
if (!$result) {
throw new upgrade_exception(null, $version);
}
if ($CFG->version >= $version) {
// something really wrong is going on in main upgrade script
throw new downgrade_exception(null, $CFG->version, $version);
}
set_config('version', $version);
upgrade_log(UPGRADE_LOG_NORMAL, null, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
// this is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Module upgrade savepoint, marks end of module upgrade blocks
* It stores module version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param string $modname name of module
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_mod_savepoint($result, $version, $modname, $allowabort=true) {
global $DB;
$component = 'mod_'.$modname;
if (!$result) {
throw new upgrade_exception($component, $version);
}
$dbversion = $DB->get_field('config_plugins', 'value', array('plugin'=>$component, 'name'=>'version'));
if (!$module = $DB->get_record('modules', array('name'=>$modname))) {
print_error('modulenotexist', 'debug', '', $modname);
}
if ($dbversion >= $version) {
// something really wrong is going on in upgrade script
throw new downgrade_exception($component, $dbversion, $version);
}
set_config('version', $version, $component);
upgrade_log(UPGRADE_LOG_NORMAL, $component, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
// this is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Blocks upgrade savepoint, marks end of blocks upgrade blocks
* It stores block version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param string $blockname name of block
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_block_savepoint($result, $version, $blockname, $allowabort=true) {
global $DB;
$component = 'block_'.$blockname;
if (!$result) {
throw new upgrade_exception($component, $version);
}
$dbversion = $DB->get_field('config_plugins', 'value', array('plugin'=>$component, 'name'=>'version'));
if (!$block = $DB->get_record('block', array('name'=>$blockname))) {
print_error('blocknotexist', 'debug', '', $blockname);
}
if ($dbversion >= $version) {
// something really wrong is going on in upgrade script
throw new downgrade_exception($component, $dbversion, $version);
}
set_config('version', $version, $component);
upgrade_log(UPGRADE_LOG_NORMAL, $component, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
// this is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Plugins upgrade savepoint, marks end of blocks upgrade blocks
* It stores plugin version, resets upgrade timeout
* and abort upgrade if user cancels page loading.
*
* @category upgrade
* @param bool $result false if upgrade step failed, true if completed
* @param string or float $version main version
* @param string $type name of plugin
* @param string $dir location of plugin
* @param bool $allowabort allow user to abort script execution here
* @return void
*/
function upgrade_plugin_savepoint($result, $version, $type, $plugin, $allowabort=true) {
global $DB;
$component = $type.'_'.$plugin;
if (!$result) {
throw new upgrade_exception($component, $version);
}
$dbversion = $DB->get_field('config_plugins', 'value', array('plugin'=>$component, 'name'=>'version'));
if ($dbversion >= $version) {
// Something really wrong is going on in the upgrade script
throw new downgrade_exception($component, $dbversion, $version);
}
set_config('version', $version, $component);
upgrade_log(UPGRADE_LOG_NORMAL, $component, 'Upgrade savepoint reached');
// Reset upgrade timeout to default
upgrade_set_timeout();
// This is a safe place to stop upgrades if user aborts page loading
if ($allowabort and connection_aborted()) {
die;
}
}
/**
* Detect if there are leftovers in PHP source files.
*
* During main version upgrades administrators MUST move away
* old PHP source files and start from scratch (or better
* use git).
*
* @return bool true means borked upgrade, false means previous PHP files were properly removed
*/
function upgrade_stale_php_files_present() {
global $CFG;
$someexamplesofremovedfiles = array(
// removed in 2.6dev
'/admin/block.php',
'/admin/oacleanup.php',
// removed in 2.5dev
'/backup/lib.php',
'/backup/bb/README.txt',
'/lib/excel/test.php',
// removed in 2.4dev
'/admin/tool/unittest/simpletestlib.php',
// removed in 2.3dev
'/lib/minify/builder/',
// removed in 2.2dev
'/lib/yui/3.4.1pr1/',
// removed in 2.2
'/search/cron_php5.php',
'/course/report/log/indexlive.php',
'/admin/report/backups/index.php',
'/admin/generator.php',
// removed in 2.1
'/lib/yui/2.8.0r4/',
// removed in 2.0
'/blocks/admin/block_admin.php',
'/blocks/admin_tree/block_admin_tree.php',
);
foreach ($someexamplesofremovedfiles as $file) {
if (file_exists($CFG->dirroot.$file)) {
return true;
}
}
return false;
}
/**
* Upgrade plugins
* @param string $type The type of plugins that should be updated (e.g. 'enrol', 'qtype')
* return void
*/
function upgrade_plugins($type, $startcallback, $endcallback, $verbose) {
global $CFG, $DB;
/// special cases
if ($type === 'mod') {
return upgrade_plugins_modules($startcallback, $endcallback, $verbose);
} else if ($type === 'block') {
return upgrade_plugins_blocks($startcallback, $endcallback, $verbose);
}
$plugs = core_component::get_plugin_list($type);
foreach ($plugs as $plug=>$fullplug) {
// Reset time so that it works when installing a large number of plugins
set_time_limit(600);
$component = clean_param($type.'_'.$plug, PARAM_COMPONENT); // standardised plugin name
// check plugin dir is valid name
if (empty($component)) {
throw new plugin_defective_exception($type.'_'.$plug, 'Invalid plugin directory name.');
}
if (!is_readable($fullplug.'/version.php')) {
continue;
}
$plugin = new stdClass();
$plugin->version = null;
$module = $plugin; // Prevent some notices when plugin placed in wrong directory.
require($fullplug.'/version.php'); // defines $plugin with version etc
unset($module);
// if plugin tells us it's full name we may check the location
if (isset($plugin->component)) {
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullplug);
}
}
if (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing version value in version.php');
}
$plugin->name = $plug;
$plugin->fullname = $component;
if (!empty($plugin->requires)) {
if ($plugin->requires > $CFG->version) {
throw new upgrade_requires_exception($component, $plugin->version, $CFG->version, $plugin->requires);
} else if ($plugin->requires < 2010000000) {
throw new plugin_defective_exception($component, 'Plugin is not compatible with Moodle 2.x or later.');
}
}
// try to recover from interrupted install.php if needed
if (file_exists($fullplug.'/db/install.php')) {
if (get_config($plugin->fullname, 'installrunning')) {
require_once($fullplug.'/db/install.php');
$recover_install_function = 'xmldb_'.$plugin->fullname.'_install_recovery';
if (function_exists($recover_install_function)) {
$startcallback($component, true, $verbose);
$recover_install_function();
unset_config('installrunning', $plugin->fullname);
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
if ($type === 'message') {
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
$endcallback($component, true, $verbose);
}
}
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if (empty($installedversion)) { // new installation
$startcallback($component, true, $verbose);
/// Install tables if defined
if (file_exists($fullplug.'/db/install.xml')) {
$DB->get_manager()->install_from_xmldb_file($fullplug.'/db/install.xml');
}
/// store version
upgrade_plugin_savepoint(true, $plugin->version, $type, $plug, false);
/// execute post install file
if (file_exists($fullplug.'/db/install.php')) {
require_once($fullplug.'/db/install.php');
set_config('installrunning', 1, $plugin->fullname);
$post_install_function = 'xmldb_'.$plugin->fullname.'_install';
$post_install_function();
unset_config('installrunning', $plugin->fullname);
}
/// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
if ($type === 'message') {
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
$endcallback($component, true, $verbose);
} else if ($installedversion < $plugin->version) { // upgrade
/// Run the upgrade function for the plugin.
$startcallback($component, false, $verbose);
if (is_readable($fullplug.'/db/upgrade.php')) {
require_once($fullplug.'/db/upgrade.php'); // defines upgrading function
$newupgrade_function = 'xmldb_'.$plugin->fullname.'_upgrade';
$result = $newupgrade_function($installedversion);
} else {
$result = true;
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if ($installedversion < $plugin->version) {
// store version if not already there
upgrade_plugin_savepoint($result, $plugin->version, $type, $plug, false);
}
/// Upgrade various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
if ($type === 'message') {
// Ugly hack!
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
$endcallback($component, false, $verbose);
} else if ($installedversion > $plugin->version) {
throw new downgrade_exception($component, $installedversion, $plugin->version);
}
}
}
/**
* Find and check all modules and load them up or upgrade them if necessary
*
* @global object
* @global object
*/
function upgrade_plugins_modules($startcallback, $endcallback, $verbose) {
global $CFG, $DB;
$mods = core_component::get_plugin_list('mod');
foreach ($mods as $mod=>$fullmod) {
if ($mod === 'NEWMODULE') { // Someone has unzipped the template, ignore it
continue;
}
$component = clean_param('mod_'.$mod, PARAM_COMPONENT);
// check module dir is valid name
if (empty($component)) {
throw new plugin_defective_exception('mod_'.$mod, 'Invalid plugin directory name.');
}
if (!is_readable($fullmod.'/version.php')) {
throw new plugin_defective_exception($component, 'Missing version.php');
}
$plugin = new stdClass();
$plugin->version = null;
$module = $plugin;
require($fullmod .'/version.php'); // Defines $module/$plugin with version etc.
$plugin = clone($module);
unset($module->version);
unset($module->component);
unset($module->dependencies);
unset($module->release);
// if plugin tells us it's full name we may check the location
if (isset($plugin->component)) {
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullmod);
}
}
if (empty($plugin->version)) {
// Version must be always set now!
throw new plugin_defective_exception($component, 'Missing version value in version.php');
}
if (!empty($plugin->requires)) {
if ($plugin->requires > $CFG->version) {
throw new upgrade_requires_exception($component, $plugin->version, $CFG->version, $plugin->requires);
} else if ($plugin->requires < 2010000000) {
throw new plugin_defective_exception($component, 'Plugin is not compatible with Moodle 2.x or later.');
}
}
if (empty($module->cron)) {
$module->cron = 0;
}
// all modules must have en lang pack
if (!is_readable("$fullmod/lang/en/$mod.php")) {
throw new plugin_defective_exception($component, 'Missing mandatory en language pack.');
}
$module->name = $mod; // The name MUST match the directory
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if (file_exists($fullmod.'/db/install.php')) {
if (get_config($module->name, 'installrunning')) {
require_once($fullmod.'/db/install.php');
$recover_install_function = 'xmldb_'.$module->name.'_install_recovery';
if (function_exists($recover_install_function)) {
$startcallback($component, true, $verbose);
$recover_install_function();
unset_config('installrunning', $module->name);
// Install various components too
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
upgrade_plugin_mnet_functions($component);
$endcallback($component, true, $verbose);
}
}
}
if (empty($installedversion)) {
$startcallback($component, true, $verbose);
/// Execute install.xml (XMLDB) - must be present in all modules
$DB->get_manager()->install_from_xmldb_file($fullmod.'/db/install.xml');
/// Add record into modules table - may be needed in install.php already
$module->id = $DB->insert_record('modules', $module);
upgrade_mod_savepoint(true, $plugin->version, $module->name, false);
/// Post installation hook - optional
if (file_exists("$fullmod/db/install.php")) {
require_once("$fullmod/db/install.php");
// Set installation running flag, we need to recover after exception or error
set_config('installrunning', 1, $module->name);
$post_install_function = 'xmldb_'.$module->name.'_install';
$post_install_function();
unset_config('installrunning', $module->name);
}
/// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
upgrade_plugin_mnet_functions($component);
$endcallback($component, true, $verbose);
} else if ($installedversion < $plugin->version) {
/// If versions say that we need to upgrade but no upgrade files are available, notify and continue
$startcallback($component, false, $verbose);
if (is_readable($fullmod.'/db/upgrade.php')) {
require_once($fullmod.'/db/upgrade.php'); // defines new upgrading function
$newupgrade_function = 'xmldb_'.$module->name.'_upgrade';
$result = $newupgrade_function($installedversion, $module);
} else {
$result = true;
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
$currmodule = $DB->get_record('modules', array('name'=>$module->name));
if ($installedversion < $plugin->version) {
// store version if not already there
upgrade_mod_savepoint($result, $plugin->version, $mod, false);
}
// update cron flag if needed
if ($currmodule->cron != $module->cron) {
$DB->set_field('modules', 'cron', $module->cron, array('name' => $module->name));
}
// Upgrade various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
upgrade_plugin_mnet_functions($component);
$endcallback($component, false, $verbose);
} else if ($installedversion > $plugin->version) {
throw new downgrade_exception($component, $installedversion, $plugin->version);
}
}
}
/**
* This function finds all available blocks and install them
* into blocks table or do all the upgrade process if newer.
*
* @global object
* @global object
*/
function upgrade_plugins_blocks($startcallback, $endcallback, $verbose) {
global $CFG, $DB;
require_once($CFG->dirroot.'/blocks/moodleblock.class.php');
$blocktitles = array(); // we do not want duplicate titles
//Is this a first install
$first_install = null;
$blocks = core_component::get_plugin_list('block');
foreach ($blocks as $blockname=>$fullblock) {
if (is_null($first_install)) {
$first_install = ($DB->count_records('block_instances') == 0);
}
if ($blockname === 'NEWBLOCK') { // Someone has unzipped the template, ignore it
continue;
}
$component = clean_param('block_'.$blockname, PARAM_COMPONENT);
// check block dir is valid name
if (empty($component)) {
throw new plugin_defective_exception('block_'.$blockname, 'Invalid plugin directory name.');
}
if (!is_readable($fullblock.'/version.php')) {
throw new plugin_defective_exception('block/'.$blockname, 'Missing version.php file.');
}
$plugin = new stdClass();
$plugin->version = null;
$plugin->cron = 0;
$module = $plugin; // Prevent some notices when module placed in wrong directory.
include($fullblock.'/version.php');
unset($module);
$block = clone($plugin);
unset($block->version);
unset($block->component);
unset($block->dependencies);
unset($block->release);
// if plugin tells us it's full name we may check the location
if (isset($plugin->component)) {
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullblock);
}
}
if (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing block version.');
}
if (!empty($plugin->requires)) {
if ($plugin->requires > $CFG->version) {
throw new upgrade_requires_exception($component, $plugin->version, $CFG->version, $plugin->requires);
} else if ($plugin->requires < 2010000000) {
throw new plugin_defective_exception($component, 'Plugin is not compatible with Moodle 2.x or later.');
}
}
if (!is_readable($fullblock.'/block_'.$blockname.'.php')) {
throw new plugin_defective_exception('block/'.$blockname, 'Missing main block class file.');
}
include_once($fullblock.'/block_'.$blockname.'.php');
$classname = 'block_'.$blockname;
if (!class_exists($classname)) {
throw new plugin_defective_exception($component, 'Can not load main class.');
}
$blockobj = new $classname; // This is what we'll be testing
$blocktitle = $blockobj->get_title();
// OK, it's as we all hoped. For further tests, the object will do them itself.
if (!$blockobj->_self_test()) {
throw new plugin_defective_exception($component, 'Self test failed.');
}
$block->name = $blockname; // The name MUST match the directory
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
if (file_exists($fullblock.'/db/install.php')) {
if (get_config('block_'.$blockname, 'installrunning')) {
require_once($fullblock.'/db/install.php');
$recover_install_function = 'xmldb_block_'.$blockname.'_install_recovery';
if (function_exists($recover_install_function)) {
$startcallback($component, true, $verbose);
$recover_install_function();
unset_config('installrunning', 'block_'.$blockname);
// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
upgrade_plugin_mnet_functions($component);
$endcallback($component, true, $verbose);
}
}
}
if (empty($installedversion)) { // block not installed yet, so install it
$conflictblock = array_search($blocktitle, $blocktitles);
if ($conflictblock !== false) {
// Duplicate block titles are not allowed, they confuse people
// AND PHP's associative arrays ;)
throw new plugin_defective_exception($component, get_string('blocknameconflict', 'error', (object)array('name'=>$block->name, 'conflict'=>$conflictblock)));
}
$startcallback($component, true, $verbose);
if (file_exists($fullblock.'/db/install.xml')) {
$DB->get_manager()->install_from_xmldb_file($fullblock.'/db/install.xml');
}
$block->id = $DB->insert_record('block', $block);
upgrade_block_savepoint(true, $plugin->version, $block->name, false);
if (file_exists($fullblock.'/db/install.php')) {
require_once($fullblock.'/db/install.php');
// Set installation running flag, we need to recover after exception or error
set_config('installrunning', 1, 'block_'.$blockname);
$post_install_function = 'xmldb_block_'.$blockname.'_install';
$post_install_function();
unset_config('installrunning', 'block_'.$blockname);
}
$blocktitles[$block->name] = $blocktitle;
// Install various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
upgrade_plugin_mnet_functions($component);
$endcallback($component, true, $verbose);
} else if ($installedversion < $plugin->version) {
$startcallback($component, false, $verbose);
if (is_readable($fullblock.'/db/upgrade.php')) {
require_once($fullblock.'/db/upgrade.php'); // defines new upgrading function
$newupgrade_function = 'xmldb_block_'.$blockname.'_upgrade';
$result = $newupgrade_function($installedversion, $block);
} else {
$result = true;
}
$installedversion = $DB->get_field('config_plugins', 'value', array('name'=>'version', 'plugin'=>$component)); // No caching!
$currblock = $DB->get_record('block', array('name'=>$block->name));
if ($installedversion < $plugin->version) {
// store version if not already there
upgrade_block_savepoint($result, $plugin->version, $block->name, false);
}
if ($currblock->cron != $block->cron) {
// update cron flag if needed
$DB->set_field('block', 'cron', $block->cron, array('id' => $currblock->id));
}
// Upgrade various components
update_capabilities($component);
log_update_descriptions($component);
external_update_descriptions($component);
events_update_definition($component);
message_update_providers($component);
upgrade_plugin_mnet_functions($component);
$endcallback($component, false, $verbose);
} else if ($installedversion > $plugin->version) {
throw new downgrade_exception($component, $installedversion, $plugin->version);
}
}
// Finally, if we are in the first_install of BLOCKS setup frontpage and admin page blocks
if ($first_install) {
//Iterate over each course - there should be only site course here now
if ($courses = $DB->get_records('course')) {
foreach ($courses as $course) {
blocks_add_default_course_blocks($course);
}
}
blocks_add_default_system_blocks();
}
}
/**
* Log_display description function used during install and upgrade.
*
* @param string $component name of component (moodle, mod_assignment, etc.)
* @return void
*/
function log_update_descriptions($component) {
global $DB;
$defpath = core_component::get_component_directory($component).'/db/log.php';
if (!file_exists($defpath)) {
$DB->delete_records('log_display', array('component'=>$component));
return;
}
// load new info
$logs = array();
include($defpath);
$newlogs = array();
foreach ($logs as $log) {
$newlogs[$log['module'].'-'.$log['action']] = $log; // kind of unique name
}
unset($logs);
$logs = $newlogs;
$fields = array('module', 'action', 'mtable', 'field');
// update all log fist
$dblogs = $DB->get_records('log_display', array('component'=>$component));
foreach ($dblogs as $dblog) {
$name = $dblog->module.'-'.$dblog->action;
if (empty($logs[$name])) {
$DB->delete_records('log_display', array('id'=>$dblog->id));
continue;
}
$log = $logs[$name];
unset($logs[$name]);
$update = false;
foreach ($fields as $field) {
if ($dblog->$field != $log[$field]) {
$dblog->$field = $log[$field];
$update = true;
}
}
if ($update) {
$DB->update_record('log_display', $dblog);
}
}
foreach ($logs as $log) {
$dblog = (object)$log;
$dblog->component = $component;
$DB->insert_record('log_display', $dblog);
}
}
/**
* Web service discovery function used during install and upgrade.
* @param string $component name of component (moodle, mod_assignment, etc.)
* @return void
*/
function external_update_descriptions($component) {
global $DB, $CFG;
$defpath = core_component::get_component_directory($component).'/db/services.php';
if (!file_exists($defpath)) {
require_once($CFG->dirroot.'/lib/externallib.php');
external_delete_descriptions($component);
return;
}
// load new info
$functions = array();