Proyectos de Subversion Moodle

<?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    tool_xmldb

 * @copyright  2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

/**

 * This class will save one edited xml file

 *

 * This class will save the in-session xml structure to its

 * corresponding xml file, optionally reloading it if editing

 * is going to continue (unload=false). Else (default) the

 * file is unloaded once saved.

 *

 * @package    tool_xmldb

 * @copyright  2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class save_xml_file extends XMLDBAction {

    /**

     * Init method, every subclass will have its own

     */

    function init() {

        parent::init();

        // Set own custom attributes

        // Get needed strings

        $this->loadStrings(array(

            'filenotwriteable' => 'tool_xmldb'

        ));

    }

    /**

     * Invoke method, every class will have its own

     * returns true/false on completion, setting both

     * errormsg and output as necessary

     */

    function invoke() {

        parent::invoke();

        $result = true;

        // Set own core attributes

        $this->does_generate = ACTION_NONE;

        // These are always here

        global $CFG, $XMLDB;

        // Do the job, setting result as needed

        // Get the dir containing the file

        $dirpath = required_param('dir', PARAM_PATH);

        $dirpath = $CFG->dirroot . $dirpath;

        $unload = optional_param('unload', true, PARAM_BOOL);

        // Get the edited dir

        if (!empty($XMLDB->editeddirs)) {

            if (isset($XMLDB->editeddirs[$dirpath])) {

                $editeddir = $XMLDB->editeddirs[$dirpath];

            }

        }

        // Copy the edited dir over the original one

        if (!empty($XMLDB->dbdirs)) {

            if (isset($XMLDB->dbdirs[$dirpath])) {

                $XMLDB->dbdirs[$dirpath] = unserialize(serialize($editeddir));

                $dbdir = $XMLDB->dbdirs[$dirpath];

            }

        }

        // Check for perms

        if (!is_writeable($dirpath . '/install.xml')) {

            $this->errormsg = $this->str['filenotwriteable'] . '(' . $dirpath . '/install.xml)';

            return false;

        }

        // Save the original dir

        $result = $dbdir->xml_file->saveXMLFile();

        if ($result) {

            // Delete the edited dir

            unset ($XMLDB->editeddirs[$dirpath]);

            // Unload de originaldir

            unset($XMLDB->dbdirs[$dirpath]->xml_file);

            unset($XMLDB->dbdirs[$dirpath]->xml_loaded);

            unset($XMLDB->dbdirs[$dirpath]->xml_changed);

            unset($XMLDB->dbdirs[$dirpath]->xml_exists);

            unset($XMLDB->dbdirs[$dirpath]->xml_writeable);

        } else {

            $this->errormsg = 'Error saving XML file (' . $dirpath . ')';

            return false;

        }

        // If unload has been disabled, simulate it by reloading the file now

        if (!$unload) {

            return $this->launch('load_xml_file');

        }

        // Launch postaction if exists (leave this here!)

        if ($this->getPostAction() && $result) {

            return $this->launch($this->getPostAction());

        }

        // Return ok if arrived here

        return $result;

    }

}