예제 #1
0
 }
 // And log_display information
 if (!$DB->delete_records("log_display", array("module" => $module->name))) {
     echo $OUTPUT->notification("Error occurred while deleting all {$strmodulename} records in log_display table");
 }
 // And the module entry itself
 if (!$DB->delete_records("modules", array("name" => $module->name))) {
     echo $OUTPUT->notification("Error occurred while deleting the {$strmodulename} record from modules table");
 }
 // And the module configuration records
 if (!unset_all_config_for_plugin($module->name)) {
     echo $OUTPUT->notification(get_string('errordeletingconfig', 'admin', $strmodulename));
 }
 // cleanup the gradebook
 require_once $CFG->libdir . '/gradelib.php';
 grade_uninstalled_module($module->name);
 // Then the tables themselves
 drop_plugin_tables($module->name, "{$CFG->dirroot}/mod/{$module->name}/db/install.xml", false);
 // Delete the capabilities that were defined by this module
 capabilities_cleanup('mod/' . $module->name);
 // remove entent handlers and dequeue pending events
 events_uninstall('mod/' . $module->name);
 // Perform any custom uninstall tasks
 if (file_exists($CFG->dirroot . '/mod/' . $module->name . '/lib.php')) {
     require_once $CFG->dirroot . '/mod/' . $module->name . '/lib.php';
     $uninstallfunction = $module->name . '_uninstall';
     if (function_exists($uninstallfunction)) {
         if (!$uninstallfunction()) {
             echo $OUTPUT->notification('Encountered a problem running uninstall function for ' . $module->name . '!');
         }
     }
예제 #2
0
/**
 * Automatically clean-up all plugin data and remove the plugin DB tables
 *
 * @param string $type The plugin type, eg. 'mod', 'qtype', 'workshopgrading' etc.
 * @param string $name The plugin name, eg. 'forum', 'multichoice', 'accumulative' etc.
 * @uses global $OUTPUT to produce notices and other messages
 * @return void
 */
function uninstall_plugin($type, $name)
{
    global $CFG, $DB, $OUTPUT;
    // recursively uninstall all module subplugins first
    if ($type === 'mod') {
        if (file_exists("{$CFG->dirroot}/mod/{$name}/db/subplugins.php")) {
            $subplugins = array();
            include "{$CFG->dirroot}/mod/{$name}/db/subplugins.php";
            foreach ($subplugins as $subplugintype => $dir) {
                $instances = get_plugin_list($subplugintype);
                foreach ($instances as $subpluginname => $notusedpluginpath) {
                    uninstall_plugin($subplugintype, $subpluginname);
                }
            }
        }
    }
    $component = $type . '_' . $name;
    // eg. 'qtype_multichoice' or 'workshopgrading_accumulative' or 'mod_forum'
    if ($type === 'mod') {
        $pluginname = $name;
        // eg. 'forum'
        if (get_string_manager()->string_exists('modulename', $component)) {
            $strpluginname = get_string('modulename', $component);
        } else {
            $strpluginname = $component;
        }
    } else {
        $pluginname = $component;
        if (get_string_manager()->string_exists('pluginname', $component)) {
            $strpluginname = get_string('pluginname', $component);
        } else {
            $strpluginname = $component;
        }
    }
    echo $OUTPUT->heading($pluginname);
    $plugindirectory = get_plugin_directory($type, $name);
    $uninstalllib = $plugindirectory . '/db/uninstall.php';
    if (file_exists($uninstalllib)) {
        require_once $uninstalllib;
        $uninstallfunction = 'xmldb_' . $pluginname . '_uninstall';
        // eg. 'xmldb_workshop_uninstall()'
        if (function_exists($uninstallfunction)) {
            if (!$uninstallfunction()) {
                echo $OUTPUT->notification('Encountered a problem running uninstall function for ' . $pluginname);
            }
        }
    }
    if ($type === 'mod') {
        // perform cleanup tasks specific for activity modules
        if (!($module = $DB->get_record('modules', array('name' => $name)))) {
            print_error('moduledoesnotexist', 'error');
        }
        // delete all the relevant instances from all course sections
        if ($coursemods = $DB->get_records('course_modules', array('module' => $module->id))) {
            foreach ($coursemods as $coursemod) {
                if (!delete_mod_from_section($coursemod->id, $coursemod->section)) {
                    echo $OUTPUT->notification("Could not delete the {$strpluginname} with id = {$coursemod->id} from section {$coursemod->section}");
                }
            }
        }
        // clear course.modinfo for courses that used this module
        $sql = "UPDATE {course}\n                   SET modinfo=''\n                 WHERE id IN (SELECT DISTINCT course\n                                FROM {course_modules}\n                               WHERE module=?)";
        $DB->execute($sql, array($module->id));
        // delete all the course module records
        $DB->delete_records('course_modules', array('module' => $module->id));
        // delete module contexts
        if ($coursemods) {
            foreach ($coursemods as $coursemod) {
                if (!delete_context(CONTEXT_MODULE, $coursemod->id)) {
                    echo $OUTPUT->notification("Could not delete the context for {$strpluginname} with id = {$coursemod->id}");
                }
            }
        }
        // delete the module entry itself
        $DB->delete_records('modules', array('name' => $module->name));
        // cleanup the gradebook
        require_once $CFG->libdir . '/gradelib.php';
        grade_uninstalled_module($module->name);
        // Perform any custom uninstall tasks
        if (file_exists($CFG->dirroot . '/mod/' . $module->name . '/lib.php')) {
            require_once $CFG->dirroot . '/mod/' . $module->name . '/lib.php';
            $uninstallfunction = $module->name . '_uninstall';
            if (function_exists($uninstallfunction)) {
                debugging("{$uninstallfunction}() has been deprecated. Use the plugin's db/uninstall.php instead", DEBUG_DEVELOPER);
                if (!$uninstallfunction()) {
                    echo $OUTPUT->notification('Encountered a problem running uninstall function for ' . $module->name . '!');
                }
            }
        }
    } else {
        if ($type === 'enrol') {
            // NOTE: this is a bit brute force way - it will not trigger events and hooks properly
            // nuke all role assignments
            role_unassign_all(array('component' => $component));
            // purge participants
            $DB->delete_records_select('user_enrolments', "enrolid IN (SELECT id FROM {enrol} WHERE enrol = ?)", array($name));
            // purge enrol instances
            $DB->delete_records('enrol', array('enrol' => $name));
            // tweak enrol settings
            if (!empty($CFG->enrol_plugins_enabled)) {
                $enabledenrols = explode(',', $CFG->enrol_plugins_enabled);
                $enabledenrols = array_unique($enabledenrols);
                $enabledenrols = array_flip($enabledenrols);
                unset($enabledenrols[$name]);
                $enabledenrols = array_flip($enabledenrols);
                if (is_array($enabledenrols)) {
                    set_config('enrol_plugins_enabled', implode(',', $enabledenrols));
                }
            }
        } else {
            if ($type === 'block') {
                if ($block = $DB->get_record('block', array('name' => $name))) {
                    // Inform block it's about to be deleted
                    if (file_exists("{$CFG->dirroot}/blocks/{$block->name}/block_{$block->name}.php")) {
                        $blockobject = block_instance($block->name);
                        if ($blockobject) {
                            $blockobject->before_delete();
                            //only if we can create instance, block might have been already removed
                        }
                    }
                    // First delete instances and related contexts
                    $instances = $DB->get_records('block_instances', array('blockname' => $block->name));
                    foreach ($instances as $instance) {
                        blocks_delete_instance($instance);
                    }
                    // Delete block
                    $DB->delete_records('block', array('id' => $block->id));
                }
            }
        }
    }
    // perform clean-up task common for all the plugin/subplugin types
    // delete calendar events
    $DB->delete_records('event', array('modulename' => $pluginname));
    // delete all the logs
    $DB->delete_records('log', array('module' => $pluginname));
    // delete log_display information
    $DB->delete_records('log_display', array('component' => $component));
    // delete the module configuration records
    unset_all_config_for_plugin($pluginname);
    // delete message provider
    message_provider_uninstall($component);
    // delete message processor
    if ($type === 'message') {
        message_processor_uninstall($name);
    }
    // delete the plugin tables
    $xmldbfilepath = $plugindirectory . '/db/install.xml';
    drop_plugin_tables($component, $xmldbfilepath, false);
    if ($type === 'mod' or $type === 'block') {
        // non-frankenstyle table prefixes
        drop_plugin_tables($name, $xmldbfilepath, false);
    }
    // delete the capabilities that were defined by this module
    capabilities_cleanup($component);
    // remove event handlers and dequeue pending events
    events_uninstall($component);
    echo $OUTPUT->notification(get_string('success'), 'notifysuccess');
}
예제 #3
0
파일: mod.php 프로젝트: evltuma/moodle
 /**
  * Pre-uninstall hook.
  *
  * This is intended for disabling of plugin, some DB table purging, etc.
  *
  * NOTE: to be called from uninstall_plugin() only.
  * @private
  */
 public function uninstall_cleanup()
 {
     global $DB, $CFG;
     if (!($module = $DB->get_record('modules', array('name' => $this->name)))) {
         parent::uninstall_cleanup();
         return;
     }
     // Delete all the relevant instances from all course sections.
     if ($coursemods = $DB->get_records('course_modules', array('module' => $module->id))) {
         foreach ($coursemods as $coursemod) {
             // Do not verify results, there is not much we can do anyway.
             delete_mod_from_section($coursemod->id, $coursemod->section);
         }
     }
     // Increment course.cacherev for courses that used this module.
     // This will force cache rebuilding on the next request.
     increment_revision_number('course', 'cacherev', "id IN (SELECT DISTINCT course\n                      FROM {course_modules}\n                     WHERE module=?)", array($module->id));
     // Delete all the course module records.
     $DB->delete_records('course_modules', array('module' => $module->id));
     // Delete module contexts.
     if ($coursemods) {
         foreach ($coursemods as $coursemod) {
             \context_helper::delete_instance(CONTEXT_MODULE, $coursemod->id);
         }
     }
     // Delete the module entry itself.
     $DB->delete_records('modules', array('name' => $module->name));
     // Cleanup the gradebook.
     require_once $CFG->libdir . '/gradelib.php';
     grade_uninstalled_module($module->name);
     // Do not look for legacy $module->name . '_uninstall any more,
     // they should have migrated to db/uninstall.php by now.
     parent::uninstall_cleanup();
 }