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MDL-27445 added moodle1 backup converter for chat

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1 parent 2fe7d14 commit b391176a0b912dcc3beab3f4cb94b71d992a9e03 @nebgor nebgor committed with mudrd8mz May 20, 2011
Showing with 101 additions and 0 deletions.
  1. +101 −0 mod/chat/backup/moodle1/lib.php
@@ -0,0 +1,101 @@
+<?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/>.
+
+/**
+ * Provides support for the conversion of moodle1 backup to the moodle2 format
+ * Based off of a template @ http://docs.moodle.org/en/Development:Backup_1.9_conversion_for_developers
+ *
+ * @package mod
+ * @subpackage chat
+ * @copyright 2011 Aparup Banerjee <aparup@moodle.com>
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Chat conversion handler
+ */
+class moodle1_mod_chat_handler extends moodle1_mod_handler {
+
+ /**
+ * Declare the paths in moodle.xml we are able to convert
+ *
+ * The method returns list of {@link convert_path} instances.
+ * For each path returned, the corresponding conversion method must be
+ * defined.
+ *
+ * Note that the path /MOODLE_BACKUP/COURSE/MODULES/MOD/CHAT does not
+ * actually exist in the file. The last element with the module name was
+ * appended by the moodle1_converter class.
+ *
+ * @return array of {@link convert_path} instances
+ */
+ public function get_paths() {
+ return array(
+ new convert_path(
+ 'chat', '/MOODLE_BACKUP/COURSE/MODULES/MOD/CHAT',
+ array(
+ 'newfields' => array(
+ 'introformat' => 0
+ )
+ )
+ )
+ );
+ }
+
+ /**
+ * This is executed every time we have one /MOODLE_BACKUP/COURSE/MODULES/MOD/CHAT
+ * data available
+ */
+ public function process_chat($data) {
+ // get the course module id and context id
+ $instanceid = $data['id'];
+ $moduleid = $this->get_moduleid($instanceid);
+ $contextid = $this->converter->get_contextid(CONTEXT_MODULE, $moduleid);
+
+ // we now have all information needed to start writing into the file
+ $this->open_xml_writer("activities/chat_{$moduleid}/chat.xml");
+ $this->xmlwriter->begin_tag('activity', array('id' => $instanceid, 'moduleid' => $moduleid,
+ 'modulename' => 'chat', 'contextid' => $contextid));
+ $this->xmlwriter->begin_tag('chat', array('id' => $instanceid));
+
+ unset($data['id']); // we already write it as attribute, do not repeat it as child element
+ foreach ($data as $field => $value) {
+ $this->xmlwriter->full_tag($field, $value);
+ }
+ }
+
+ /**
+ * This is executed every time we have one /MOODLE_BACKUP/COURSE/MODULES/MOD/CHAT/MESSAGES
+ * data available
+ */
+ public function process_chat_messages($data) {
+ //@todo process user data
+ //$this->write_xml('message', $data, array('/message/id'));
+ //@todo populate chat_messages_current table?
+ }
+
+ /**
+ * This is executed when we reach the closing </MOD> tag of our 'chat' path
+ */
+ public function on_chat_end() {
+ $this->xmlwriter->end_tag('chat');
+ $this->xmlwriter->end_tag('activity');
+ $this->close_xml_writer();
+ }
+}

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