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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* @package block_html
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* @subpackage backup-moodle2
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* @copyright 2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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/**
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* Specialised restore task for the html block
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* (requires encode_content_links in some configdata attrs)
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*
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* TODO: Finish phpdocs
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*/
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class restore_html_block_task extends restore_block_task {
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protected function define_my_settings() {
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}
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protected function define_my_steps() {
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}
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public function get_fileareas() {
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return array('content');
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}
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public function get_configdata_encoded_attributes() {
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return array('text'); // We need to encode some attrs in configdata
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}
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public static function define_decode_contents() {
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$contents = array();
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$contents[] = new restore_html_block_decode_content('block_instances', 'configdata', 'block_instance');
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return $contents;
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}
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public static function define_decode_rules() {
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return array();
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}
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}
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/**
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* Specialised restore_decode_content provider that unserializes the configdata
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* field, to serve the configdata->text content to the restore_decode_processor
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* packaging it back to its serialized form after process
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*/
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class restore_html_block_decode_content extends restore_decode_content {
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protected $configdata; // Temp storage for unserialized configdata
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protected function get_iterator() {
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global $DB;
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// Build the SQL dynamically here
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$fieldslist = 't.' . implode(', t.', $this->fields);
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$sql = "SELECT t.id, $fieldslist
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FROM {" . $this->tablename . "} t
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JOIN {backup_ids_temp} b ON b.newitemid = t.id
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WHERE b.backupid = ?
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AND b.itemname = ?
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AND t.blockname = 'html'";
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$params = array($this->restoreid, $this->mapping);
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return ($DB->get_recordset_sql($sql, $params));
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}
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protected function preprocess_field($field) {
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$this->configdata = unserialize_object(base64_decode($field));
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return isset($this->configdata->text) ? $this->configdata->text : '';
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}
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protected function postprocess_field($field) {
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$this->configdata->text = $field;
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return base64_encode(serialize($this->configdata));
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}
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}
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