--- /dev/null
+<?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/>.
+
+/**
+ * @package moodlecore
+ * @subpackage backup-moodle2
+ * @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once($CFG->dirroot . '/mod/survey/backup/moodle2/backup_survey_stepslib.php'); // Because it exists (must)
+
+/**
+ * survey backup task that provides all the settings and steps to perform one
+ * complete backup of the activity
+ */
+class backup_survey_activity_task extends backup_activity_task {
+
+ /**
+ * Define (add) particular settings this activity can have
+ */
+ protected function define_my_settings() {
+ // No particular settings for this activity
+ }
+
+ /**
+ * Define (add) particular steps this activity can have
+ */
+ protected function define_my_steps() {
+ // Choice only has one structure step
+ $this->add_step(new backup_survey_activity_structure_step('survey_structure', 'survey.xml'));
+ }
+
+ /**
+ * Code the transformations to perform in the activity in
+ * order to get transportable (encoded) links
+ */
+ static public function encode_content_links($content) {
+ global $CFG;
+
+ $base = preg_quote($CFG->wwwroot,"/");
+
+ // Link to the list of surveys
+ $search="/(".$base."\/mod\/survey\/index.php\?id\=)([0-9]+)/";
+ $content= preg_replace($search, '$@SURVEYINDEX*$2@$', $content);
+
+ // Link to survey view by moduleid
+ $search="/(".$base."\/mod\/survey\/view.php\?id\=)([0-9]+)/";
+ $content= preg_replace($search, '$@SURVEYVIEWBYID*$2@$', $content);
+
+ return $content;
+ }
+}
--- /dev/null
+<?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/>.
+
+/**
+ * @package moodlecore
+ * @subpackage backup-moodle2
+ * @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+/**
+ * Define all the backup steps that will be used by the backup_survey_activity_task
+ */
+
+/**
+ * Define the complete survey structure for backup, with file and id annotations
+ */
+class backup_survey_activity_structure_step extends backup_activity_structure_step {
+
+ protected function define_structure() {
+
+ // To know if we are including userinfo
+ $userinfo = $this->get_setting_value('userinfo');
+
+ // Define each element separated
+ $survey = new backup_nested_element('survey', array('id'), array(
+ 'name', 'intro', 'introformat', 'template',
+ 'questions', 'days', 'timecreated', 'timemodified'));
+
+ $answers = new backup_nested_element('answers');
+
+ $answer = new backup_nested_element('anwser', array('id'), array(
+ 'userid', 'question', 'time', 'answer1',
+ 'answer2'));
+
+ $analysis = new backup_nested_element('analysis');
+
+ $analys = new backup_nested_element('analys', array('id'), array(
+ 'userid', 'notes'));
+
+ // Build the tree
+ $survey->add_child($answers);
+ $answers->add_child($answer);
+
+ $survey->add_child($analysis);
+ $analysis->add_child($analys);
+
+ // Define sources
+ $survey->set_source_table('survey', array('id' => backup::VAR_ACTIVITYID));
+
+ $answer->set_source_table('survey_answers', array('survey' => backup::VAR_PARENTID));
+
+ $analys->set_source_table('survey_analysis', array('survey' => backup::VAR_PARENTID));
+
+ // Define id annotations
+ $answer->annotate_ids('user', 'userid');
+ $analys->annotate_ids('user', 'userid');
+
+ // Define file annotations
+ $survey->annotate_files(array('survey_intro'), null); // This file area hasn't itemid
+
+ // Return the root element (survey), wrapped into standard activity structure
+ return $this->prepare_activity_structure($survey);
+ }
+}
