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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);
}
}
/**
* Static class monitors performance of upgrade steps.
*/
class core_upgrade_time {
/** @var float Time at start of current upgrade (plugin/system) */
protected static $before;
/** @var float Time at end of last savepoint */
protected static $lastsavepoint;
/** @var bool Flag to indicate whether we are recording timestamps or not. */
protected static $isrecording = false;
/**
* Records current time at the start of the current upgrade item, e.g. plugin.
*/
public static function record_start() {
self::$before = microtime(true);
self::$lastsavepoint = self::$before;
self::$isrecording = true;
}
/**
* Records current time at the end of a given numbered step.
*
* @param float $version Version number (may have decimals, or not)
*/
public static function record_savepoint($version) {
global $CFG, $OUTPUT;
// In developer debug mode we show a notification after each individual save point.
if ($CFG->debugdeveloper && self::$isrecording) {
$time = microtime(true);
$notification = new \core\output\notification($version . ': ' .
get_string('successduration', '', format_float($time - self::$lastsavepoint, 2)),
\core\output\notification::NOTIFY_SUCCESS);
$notification->set_show_closebutton(false);
echo $OUTPUT->render($notification);
self::$lastsavepoint = $time;
}
}
/**
* Gets the time since the record_start function was called, rounded to 2 digits.
*
* @return float Elapsed time
*/
public static function get_elapsed() {
return microtime(true) - self::$before;
}
}
/**
* 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 > $upgraderunning - 10) {
// no need to store new end, it is nearly the same ;-)
return;
}
if (CLI_SCRIPT) {
// there is no point in timing out of CLI scripts, admins can stop them if necessary
core_php_time_limit::raise();
} else {
core_php_time_limit::raise($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', $version);
upgrade_log(UPGRADE_LOG_NORMAL, null, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// 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, $component, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// 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, $component, 'Upgrade savepoint reached');
// reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// 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, $component, 'Upgrade savepoint reached');
// Reset upgrade timeout to default
upgrade_set_timeout();
core_upgrade_time::record_savepoint($version);
// 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;
$someexamplesofremovedfiles = array(
// Removed in 3.4.
'/auth/README.txt',
'/calendar/set.php',
'/enrol/users.php',
'/enrol/yui/rolemanager/assets/skins/sam/rolemanager.css',
// Removed in 3.3.
'/badges/backpackconnect.php',
'/calendar/yui/src/info/assets/skins/sam/moodle-calendar-info.css',
'/competency/classes/external/exporter.php',
'/mod/forum/forum.js',
'/user/pixgroup.php',
// Removed in 3.2.
'/calendar/preferences.php',
'/lib/alfresco/',
'/lib/jquery/jquery-1.12.1.min.js',
'/lib/password_compat/tests/',
'/lib/phpunit/classes/unittestcase.php',
// Removed in 3.1.
'/lib/classes/log/sql_internal_reader.php',
'/lib/zend/',
'/mod/forum/pix/icon.gif',
'/tag/templates/tagname.mustache',
// Removed in 3.0.
'/mod/lti/grade.php',
'/tag/coursetagslib.php',
// Removed in 2.9.
'/lib/timezone.txt',
// Removed in 2.8.
'/course/delete_category_form.php',
// Removed in 2.7.
'/admin/tool/qeupgradehelper/version.php',
// Removed in 2.6.
'/admin/block.php',
'/admin/oacleanup.php',
// Removed in 2.5.
'/backup/lib.php',
'/backup/bb/README.txt',
'/lib/excel/test.php',
// Removed in 2.4.
'/admin/tool/unittest/simpletestlib.php',
// Removed in 2.3.
'/lib/minify/builder/',
// Removed in 2.2.
'/lib/yui/3.4.1pr1/',
// Removed in 2.2.
'/search/cron_php5.php',
'/course/report/log/indexlive.php',
'/admin/report/backups/index.php',
'/admin/generator.php',
// Removed in 2.1.
'/lib/yui/2.8.0r4/',
// Removed in 2.0.
'/blocks/admin/block_admin.php',
'/blocks/admin_tree/block_admin_tree.php',
);
foreach ($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
core_php_time_limit::raise(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 (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing $plugin->version number in version.php.');
}
if (empty($plugin->component)) {
throw new plugin_defective_exception($component, 'Missing $plugin->component declaration in version.php.');
}
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullplug);
}
$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($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
if ($type === 'message') {
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($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($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
if ($type === 'message') {
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($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($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
if ($type === 'message') {
// Ugly hack!
message_update_processors($plug);
}
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($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');
}
$module = new stdClass();
$plugin = new stdClass();
$plugin->version = null;
require($fullmod .'/version.php'); // Defines $plugin with version etc.
// Check if the legacy $module syntax is still used.
if (!is_object($module) or (count((array)$module) > 0)) {
throw new plugin_defective_exception($component, 'Unsupported $module syntax detected in version.php');
}
// Prepare the record for the {modules} table.
$module = clone($plugin);
unset($module->version);
unset($module->component);
unset($module->dependencies);
unset($module->release);
if (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing $plugin->version number in version.php.');
}
if (empty($plugin->component)) {
throw new plugin_defective_exception($component, 'Missing $plugin->component declaration in version.php.');
}
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullmod);
}
if (!empty($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($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($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($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($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($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($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 (empty($plugin->version)) {
throw new plugin_defective_exception($component, 'Missing block version number in version.php.');
}
if (empty($plugin->component)) {
throw new plugin_defective_exception($component, 'Missing $plugin->component declaration in version.php.');
}
if ($plugin->component !== $component) {
throw new plugin_misplaced_exception($plugin->component, null, $fullblock);
}
if (!empty($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);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
upgrade_plugin_mnet_functions($component);
core_tag_area::reset_definitions_for_component($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($component);
\core\task\manager::reset_scheduled_tasks_for_component($component);
message_update_providers($component);
\core\message\inbound\manager::update_handlers_for_component($component);
core_tag_area::reset_definitions_for_component($component);
upgrade_plugin_mnet_functions($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';