moodle/lib/upgradelib.php
tjhunt d4a03c00ea themes & blocks - MDL-19077 & MDL-19010 blocks are now printed by the theme
The code to print blocks in now in theme layout.php files. (Or in
moodle_core_renderer::handle_legacy_theme)

Code for printing blocks everywhere else has been stripped out.
(Total diffstat 1225 insertions, 2019 deletions)

The way the HTML for a block instance is generated has been cleaned
up a lot. Now, the block_instance generates a block_contents
object which gives a structured representation of the block,
and then $OUTPUT->block builds all the HTML from that.

How theme config.php files specify the layout template and block
regions by page general type has been changed to be even more flexible.

Further refinement for how the theme and block code gets initialised.

Ability for scrits to add 'pretend blocks' to the page. That is,
things that look like blocks, but are not normal block_instances.
(Like the add a new block UI.)

Things that are still broken:
 * some pages in lesson, quiz and resource. I'm working on it.
 * lots of developer debug notices pointing out things that
   need to be updated.
2009-07-09 07:35:03 +00:00

1057 lines
34 KiB
PHP

<?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 moodlecore
* @subpackage upgrade
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/** 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 moodlecore
* @subpackage upgrade
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class upgrade_exception extends moodle_exception {
function __construct($plugin, $version) {
global $CFG;
$a = (object)array('plugin'=>$plugin, 'version'=>$version);
parent::__construct('upgradeerror', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* Exception indicating downgrade error during upgrade.
*
* @package moodlecore
* @subpackage upgrade
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class downgrade_exception extends moodle_exception {
function __construct($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", $a);
}
}
/**
* @package moodlecore
* @subpackage upgrade
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class upgrade_requires_exception extends moodle_exception {
function __construct($plugin, $pluginversion, $currentmoodle, $requiremoodle) {
global $CFG;
$a = new object();
$a->pluginname = $plugin;
$a->pluginversion = $pluginversion;
$a->currentmoodle = $currentmoodle;
$a->requiremoodle = $requiremoodle;
parent::__construct('pluginrequirementsnotmet', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $a);
}
}
/**
* @package moodlecore
* @subpackage upgrade
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class plugin_defective_exception extends moodle_exception {
function __construct($plugin, $details) {
global $CFG;
parent::__construct('detectedbrokenplugin', 'error', "$CFG->wwwroot/$CFG->admin/index.php", $plugin, $details);
}
}
/**
* Insert or update log display entry. Entry may already exist.
* $module, $action must be unique
*
* @global object
* @param string $module
* @param string $action
* @param string $mtable
* @param string $field
* @return void
*
*/
function update_log_display_entry($module, $action, $mtable, $field) {
global $DB;
if ($type = $DB->get_record('log_display', array('module'=>$module, 'action'=>$action))) {
$type->mtable = $mtable;
$type->field = $field;
$DB->update_record('log_display', $type);
} else {
$type = new object();
$type->module = $module;
$type->action = $action;
$type->mtable = $mtable;
$type->field = $field;
$DB->insert_record('log_display', $type, false);
}
}
/**
* 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.
*
* @global object
* @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 $CFG;
if (!$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.
*
* @global object
* @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 $DB;
if (!$result) {
throw new upgrade_exception("mod_$modname", $version);
}
if (!$module = $DB->get_record('modules', array('name'=>$modname))) {
print_error('modulenotexist', 'debug', '', $modname);
}
if ($module->version >= $version) {
// something really wrong is going on in upgrade script
throw new downgrade_exception("mod_$modname", $module->version, $version);
}
$module->version = $version;
$DB->update_record('modules', $module);
upgrade_log(UPGRADE_LOG_NORMAL, "mod_$modname", '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.
*
* @global object
* @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 $DB;
if (!$result) {
throw new upgrade_exception("block_$blockname", $version);
}
if (!$block = $DB->get_record('block', array('name'=>$blockname))) {
print_error('blocknotexist', 'debug', '', $blockname);
}
if ($block->version >= $version) {
// something really wrong is going on in upgrade script
throw new downgrade_exception("block_$blockname", $block->version, $version);
}
$block->version = $version;
$DB->update_record('block', $block);
upgrade_log(UPGRADE_LOG_NORMAL, "block_$blockname", '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.
*
* @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) {
$component = $type.'_'.$plugin;
if (!$result) {
throw new upgrade_exception($component, $version);
}
$installedversion = get_config($component, 'version');
if ($installedversion >= $version) {
// Something really wrong is going on in the upgrade script
throw new downgrade_exception($component, $installedversion, $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;
}
}
/**
* 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);
}
$plugs = get_plugin_list($type);
foreach ($plugs as $plug=>$fullplug) {
$component = $type.'_'.$plug; // standardised plugin name
if (!is_readable($fullplug.'/version.php')) {
continue;
}
$plugin = new object();
require($fullplug.'/version.php'); // defines $plugin with version etc
if (empty($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);
}
}
$installedversion = get_config($plugin->fullname, 'version');
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');
}
/// execute post install file
if (file_exists($fullplug.'/db/install.php')) {
require_once($fullplug.'/db/install.php');
$post_install_function = 'xmldb_'.$plugin->fullname.'_install';;
$post_install_function();
}
/// store version
upgrade_plugin_savepoint(true, $plugin->version, $type, $plug, false);
/// Install various components
update_capabilities($component);
events_update_definition($component);
message_update_providers($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;
}
$installedversion = get_config($plugin->fullname, 'version');
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);
events_update_definition($component);
message_update_providers($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;
$mods = get_plugin_list('mod');
foreach ($mods as $mod=>$fullmod) {
if ($mod == 'NEWMODULE') { // Someone has unzipped the template, ignore it
continue;
}
$component = 'mod_'.$mod;
if (!is_readable($fullmod.'/version.php')) {
throw new plugin_defective_exception($component, 'Missing version.php');
}
$module = new object();
require($fullmod .'/version.php'); // defines $module with version etc
if (empty($module->version)) {
if (isset($module->version)) {
// Version is empty but is set - it means its value is 0 or ''. Let us skip such module.
// This is inteded for developers so they can work on the early stages of the module.
continue;
}
throw new plugin_defective_exception($component, 'Missing version value in version.php');
}
if (!empty($module->requires)) {
if ($module->requires > $CFG->version) {
throw new upgrade_requires_exception($component, $module->version, $CFG->version, $module->requires);
}
}
$module->name = $mod; // The name MUST match the directory
$currmodule = $DB->get_record('modules', array('name'=>$module->name));
if (empty($currmodule->version)) {
$startcallback($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', $module);
/// Post installation hook - optional
if (file_exists("$fullmod/db/install.php")) {
require_once("$fullmod/db/install.php");
$post_install_function = 'xmldb_'.$module->name.'_install';;
$post_install_function();
}
/// Install various components
update_capabilities($component);
events_update_definition($component);
message_update_providers($component);
$endcallback($component, true, $verbose);
} else if ($currmodule->version < $module->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 = $newupgrade_function($currmodule->version, $module);
} else {
$result = true;
}
$currmodule = $DB->get_record('modules', array('name'=>$module->name));
if ($currmodule->version < $module->version) {
// store version if not already there
upgrade_mod_savepoint($result, $module->version, $mod, false);
}
/// Upgrade various components
update_capabilities($component);
events_update_definition($component);
message_update_providers($component);
remove_dir($CFG->dataroot.'/cache', true); // flush cache
$endcallback($component, false, $verbose);
} else if ($currmodule->version > $module->version) {
throw new downgrade_exception($component, $currmodule->version, $module->version);
}
}
}
/**
* This function finds all available blocks and install them
* into blocks table or do all the upgrade process if newer.
*
* @global object
* @global object
*/
function upgrade_plugins_blocks($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;
$blocks = get_plugin_list('block');
foreach ($blocks as $blockname=>$fullblock) {
if (is_null($first_install)) {
$first_install = ($DB->count_records('block') == 0);
}
if ($blockname == 'NEWBLOCK') { // Someone has unzipped the template, ignore it
continue;
}
$component = 'block_'.$blockname;
if (!is_readable($fullblock.'/block_'.$blockname.'.php')) {
throw new plugin_defective_exception('block/'.$blockname, 'Missing main block class file.');
}
require_once($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 = new object(); // This may be used to update the db below
$block->name = $blockname; // The name MUST match the directory
$block->version = $blockobj->get_version();
$block->cron = !empty($blockobj->cron) ? $blockobj->cron : 0;
$block->multiple = $blockobj->instance_allow_multiple() ? 1 : 0;
if (empty($block->version)) {
throw new plugin_defective_exception($component, 'Missing block version.');
}
$currblock = $DB->get_record('block', array('name'=>$block->name));
if (empty($currblock->version)) { // block not installed yet, so install it
// If it allows multiples, start with it enabled
$conflictblock = array_search($blocktitle, $blocktitles);
if ($conflictblock !== false) {
// Duplicate block titles are not allowed, they confuse people
// AND PHP's associative arrays ;)
throw new plugin_defective_exception($component, get_string('blocknameconflict', '', (object)array('name'=>$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', $block);
if (file_exists($fullblock.'/db/install.php')) {
require_once($fullblock.'/db/install.php');
$post_install_function = 'xmldb_block_'.$blockname.'_install';;
$post_install_function();
}
$blocktitles[$block->name] = $blocktitle;
// Install various components
update_capabilities($component);
events_update_definition($component);
message_update_providers($component);
$endcallback($component, true, $verbose);
} else if ($currblock->version < $block->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 = $newupgrade_function($currblock->version, $block);
} else {
$result = true;
}
$currblock = $DB->get_record('block', array('name'=>$block->name));
if ($currblock->version < $block->version) {
// store version if not already there
upgrade_block_savepoint($result, $block->version, $block->name, false);
}
if ($currblock->cron != $block->cron) {
// update cron flag if needed
$currblock->cron = $block->cron;
$DB->update_record('block', $currblock);
}
// Upgrade various componebts
update_capabilities($component);
events_update_definition($component);
message_update_providers($component);
$endcallback($component, false, $verbose);
} else if ($currblock->version > $block->version) {
throw new downgrade_exception($component, $currblock->version, $block->version);
}
}
// Finally, if we are in the first_install of BLOCKS setup frontpage and admin page blocks
if ($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();
}
}
/**
* upgrade logging functions
*/
function upgrade_handle_exception($ex, $plugin = null) {
default_exception_handler($ex, true, $plugin);
}
/**
* Adds log entry into upgrade_log table
*
* @global object
* @global object
* @global object
* @param int $type UPGRADE_LOG_NORMAL, UPGRADE_LOG_NOTICE or UPGRADE_LOG_ERROR
* @param string $plugin plugin or null if main
* @param string $info short description text of log entry
* @param string $details long problem description
* @param string $backtrace string used for errors only
* @return void
*/
function upgrade_log($type, $plugin, $info, $details=null, $backtrace=null) {
global $DB, $USER, $CFG;
$plugin = ($plugin==='moodle') ? null : $plugin;
$backtrace = format_backtrace($backtrace, true);
$version = null;
//first try to find out current version number
if (empty($plugin) or $plugin === 'moodle') {
//main
$version = $CFG->version;
} else if ($plugin === 'local') {
//customisation
$version = $CFG->local_version;
} else if (strpos($plugin, 'mod/') === 0) {
try {
$modname = substr($plugin, strlen('mod/'));
$version = $DB->get_field('modules', 'version', array('name'=>$modname));
$version = ($version === false) ? null : $version;
} catch (Exception $ignored) {
}
} else if (strpos($plugin, 'block/') === 0) {
try {
$blockname = substr($plugin, strlen('block/'));
if ($block = $DB->get_record('block', array('name'=>$blockname))) {
$version = $block->version;
}
} catch (Exception $ignored) {
}
} else {
$pluginversion = get_config(str_replace('/', '_', $plugin), 'version');
if (!empty($pluginversion)) {
$version = $pluginversion;
}
}
$log = new object();
$log->type = $type;
$log->plugin = $plugin;
$log->version = $version;
$log->info = $info;
$log->details = $details;
$log->backtrace = $backtrace;
$log->userid = $USER->id;
$log->timemodified = time();
try {
$DB->insert_record('upgrade_log', $log);
} catch (Exception $ignored) {
// possible during install or 2.0 upgrade
}
}
/**
* Marks start of upgrade, blocks any other access to site.
* The upgrade is finished at the end of script or after timeout.
*
* @global object
* @global object
* @global object
*/
function upgrade_started($preinstall=false) {
global $CFG, $DB, $PAGE;
static $started = false;
if ($preinstall) {
ignore_user_abort(true);
upgrade_setup_debug(true);
} else if ($started) {
upgrade_set_timeout(120);
} else {
if (!CLI_SCRIPT and !$PAGE->headerprinted) {
$strupgrade = get_string('upgradingversion', 'admin');
$PAGE->set_generaltype('maintenance');
upgrade_get_javascript();
print_header($strupgrade.' - Moodle '.$CFG->target_release, $strupgrade,
build_navigation(array(array('name' => $strupgrade, 'link' => null, 'type' => 'misc'))), '',
'', false, '&nbsp;', '&nbsp;');
}
ignore_user_abort(true);
register_shutdown_function('upgrade_finished_handler');
upgrade_setup_debug(true);
set_config('upgraderunning', time()+300);
$started = true;
}
}
/**
* Internal function - executed if upgrade interruped.
*/
function upgrade_finished_handler() {
upgrade_finished();
}
/**
* Indicates upgrade is finished.
*
* This function may be called repeatedly.
*
* @global object
* @global object
*/
function upgrade_finished($continueurl=null) {
global $CFG, $DB;
if (!empty($CFG->upgraderunning)) {
unset_config('upgraderunning');
upgrade_setup_debug(false);
ignore_user_abort(false);
if ($continueurl) {
print_continue($continueurl);
print_footer();
die;
}
}
}
/**
* @global object
* @global object
*/
function upgrade_setup_debug($starting) {
global $CFG, $DB;
static $originaldebug = null;
if ($starting) {
if ($originaldebug === null) {
$originaldebug = $DB->get_debug();
}
if (!empty($CFG->upgradeshowsql)) {
$DB->set_debug(true);
}
} else {
$DB->set_debug($originaldebug);
}
}
/**
* @global object
*/
function print_upgrade_reload($url) {
global $OUTPUT;
echo "<br />";
echo '<div class="continuebutton">';
echo '<a href="'.$url.'" title="'.get_string('reload').'" ><img src="'.$OUTPUT->old_icon_url('i/reload') . '" alt="" /> '.get_string('reload').'</a>';
echo '</div><br />';
}
function print_upgrade_separator() {
if (!CLI_SCRIPT) {
echo '<hr />';
}
}
/**
* Default start upgrade callback
* @param string $plugin
* @param bool $installation true if installation, false menas upgrade
*/
function print_upgrade_part_start($plugin, $installation, $verbose) {
if (empty($plugin) or $plugin == 'moodle') {
upgrade_started($installation); // does not store upgrade running flag yet
if ($verbose) {
print_heading(get_string('coresystem'));
}
} else {
upgrade_started();
if ($verbose) {
print_heading($plugin);
}
}
if ($installation) {
if (empty($plugin) or $plugin == 'moodle') {
// no need to log - log table not yet there ;-)
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Starting plugin installation');
}
} else {
if (empty($plugin) or $plugin == 'moodle') {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Starting core upgrade');
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Starting plugin upgrade');
}
}
}
/**
* Default end upgrade callback
* @param string $plugin
* @param bool $installation true if installation, false menas upgrade
*/
function print_upgrade_part_end($plugin, $installation, $verbose) {
upgrade_started();
if ($installation) {
if (empty($plugin) or $plugin == 'moodle') {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Core installed');
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Plugin installed');
}
} else {
if (empty($plugin) or $plugin == 'moodle') {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Core upgraded');
} else {
upgrade_log(UPGRADE_LOG_NORMAL, $plugin, 'Plugin upgraded');
}
}
if ($verbose) {
notify(get_string('success'), 'notifysuccess');
print_upgrade_separator();
}
}
/**
* @global object
*/
function upgrade_get_javascript() {
global $PAGE;
$PAGE->requires->js('lib/javascript-static.js')->at_top_of_body();
$PAGE->requires->js_function_call('repeatedly_scroll_to_end')->at_top_of_body();
$PAGE->requires->js_function_call('cancel_scroll_to_end')->after_delay(1);
}
/**
* Try to upgrade the given language pack (or current language)
* @global object
*/
function upgrade_language_pack($lang='') {
global $CFG;
if (empty($lang)) {
$lang = current_language();
}
if ($lang == 'en_utf8') {
return true; // Nothing to do
}
upgrade_started(false);
print_heading(get_string('langimport', 'admin').': '.$lang);
@mkdir ($CFG->dataroot.'/temp/'); //make it in case it's a fresh install, it might not be there
@mkdir ($CFG->dataroot.'/lang/');
require_once($CFG->libdir.'/componentlib.class.php');
if ($cd = new component_installer('http://download.moodle.org', 'lang16', $lang.'.zip', 'languages.md5', 'lang')) {
$status = $cd->install(); //returns COMPONENT_(ERROR | UPTODATE | INSTALLED)
if ($status == COMPONENT_INSTALLED) {
@unlink($CFG->dataroot.'/cache/languages');
if ($parentlang = get_parent_language($lang)) {
if ($cd = new component_installer('http://download.moodle.org', 'lang16', $parentlang.'.zip', 'languages.md5', 'lang')) {
$cd->install();
}
}
notify(get_string('success'), 'notifysuccess');
}
}
print_upgrade_separator();
}
/**
* Install core moodle tables and initialize
* @param float $version target version
* @param bool $verbose
* @return void, may throw exception
*/
function install_core($version, $verbose) {
global $CFG, $DB;
try {
set_time_limit(600);
print_upgrade_part_start('moodle', true, $verbose); // does not store upgrade running flag
$DB->get_manager()->install_from_xmldb_file("$CFG->libdir/db/install.xml");
upgrade_started(); // we want the flag to be stored in config table ;-)
// set all core default records and default settings
require_once("$CFG->libdir/db/install.php");
xmldb_main_install();
// store version
upgrade_main_savepoint(true, $version, false);
// Continue with the instalation
events_update_definition('moodle');
message_update_providers('moodle');
// Write default settings unconditionlly
admin_apply_default_settings(NULL, true);
print_upgrade_part_end(null, true, $verbose);
} catch (exception $ex) {
upgrade_handle_exception($ex);
}
}
/**
* Upgrade moodle core
* @param float $version target version
* @param bool $verbose
* @return void, may throw exception
*/
function upgrade_core($version, $verbose) {
global $CFG;
require_once($CFG->libdir.'/db/upgrade.php'); // Defines upgrades
try {
// Upgrade current language pack if we can
if (empty($CFG->skiplangupgrade)) {
upgrade_language_pack(false);
}
print_upgrade_part_start('moodle', false, $verbose);
// one time special local migration pre 2.0 upgrade script
if ($version < 2007101600) {
$pre20upgradefile = "$CFG->dirrot/local/upgrade_pre20.php";
if (file_exists($pre20upgradefile)) {
set_time_limit(0);
require($pre20upgradefile);
// reset upgrade timeout to default
upgrade_set_timeout();
}
}
$result = xmldb_main_upgrade($CFG->version);
if ($version > $CFG->version) {
// store version if not already there
upgrade_main_savepoint($result, $version, false);
}
// perform all other component upgrade routines
update_capabilities('moodle');
events_update_definition('moodle');
message_update_providers('moodle');
remove_dir($CFG->dataroot . '/cache', true); // flush cache
print_upgrade_part_end('moodle', false, $verbose);
} catch (Exception $ex) {
upgrade_handle_exception($ex);
}
}
/**
* Upgrade/install other parts of moodle
* @param bool $verbose
* @return void, may throw exception
*/
function upgrade_noncore($verbose) {
global $CFG;
// upgrade all plugins types
try {
$plugintypes = get_plugin_types();
foreach ($plugintypes as $type=>$location) {
upgrade_plugins($type, 'print_upgrade_part_start', 'print_upgrade_part_end', $verbose);
}
} catch (Exception $ex) {
upgrade_handle_exception($ex);
}
// Check for changes to RPC functions
if ($CFG->mnet_dispatcher_mode != 'off') {
try {
// this needs a full rewrite, sorry to mention that :-(
// we have to make it part of standard WS framework
require_once("$CFG->dirroot/$CFG->admin/mnet/adminlib.php");
upgrade_RPC_functions(); // Return here afterwards
} catch (Exception $ex) {
upgrade_handle_exception($ex);
}
}
}
/**
* Checks if the main tables have been installed yet or not.
* @return bool
*/
function core_tables_exist() {
global $DB;
if (!$tables = $DB->get_tables() ) { // No tables yet at all.
return false;
} else { // Check for missing main tables
$mtables = array('config', 'course', 'groupings'); // some tables used in 1.9 and 2.0, preferable something from the start and end of install.xml
foreach ($mtables as $mtable) {
if (!in_array($mtable, $tables)) {
return false;
}
}
return true;
}
}