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 changes in table name and/or comments

 *

 * @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 edit_table_save extends XMLDBAction {

    /**

     * Init method, every subclass will have its own

     */

    function init() {

        parent::init();

        // Set own custom attributes

        // Get needed strings

        $this->loadStrings(array(

            'tablenameempty' => 'tool_xmldb',

            'incorrecttablename' => 'tool_xmldb',

            'duplicatetablename' => 'tool_xmldb',

            'back' => 'tool_xmldb',

            'administration' => ''

        ));

    }

    /**

     * 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;

        $this->does_generate = ACTION_GENERATE_HTML;

        // These are always here

        global $CFG, $XMLDB;

        // Do the job, setting result as needed

        if (!data_submitted()) { // Basic prevention

            throw new \moodle_exception('wrongcall', 'error');

        }

        // Get parameters

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

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

        $tableparam = strtolower(required_param('table', PARAM_PATH));

        $name = substr(trim(strtolower(required_param('name', PARAM_PATH))),0,xmldb_table::NAME_MAX_LENGTH);

        $comment = required_param('comment', PARAM_CLEAN);

        $comment = $comment;

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

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

        $structure = $editeddir->xml_file->getStructure();

        $table = $structure->getTable($tableparam);

        $errors = array(); // To store all the errors found

        // Perform some checks

        // Check empty name

        if (empty($name)) {

            $errors[] = $this->str['tablenameempty'];

        }

        // Check incorrect name

        if ($name == 'changeme') {

            $errors[] = $this->str['incorrecttablename'];

        }

        // Check duplicatename

        if ($tableparam != $name && $structure->getTable($name)) {

            $errors[] = $this->str['duplicatetablename'];

        }

        if (!empty($errors)) {

            $temptable = new xmldb_table($name);

                // Prepare the output

            $o = '<p>' .implode(', ', $errors) . '</p>

                  <p>' . $temptable->getName() . '</p>';

            $o.= '<a href="index.php?action=edit_table&amp;table=' . $tableparam .

                 '&amp;dir=' . urlencode(str_replace($CFG->dirroot, '', $dirpath)) . '">[' . $this->str['back'] . ']</a>';

            $this->output = $o;

        // Continue if we aren't under errors

        } else if (empty($errors)) {

            // If there is one name change, do it, changing the prev and next

            // atributes of the adjacent tables

            if ($tableparam != $name) {

                $table->setName($name);

                if ($table->getPrevious()) {

                    $prev = $structure->getTable($table->getPrevious());

                    $prev->setNext($name);

                    $prev->setChanged(true);

                }

                if ($table->getNext()) {

                    $next = $structure->getTable($table->getNext());

                    $next->setPrevious($name);

                    $next->setChanged(true);

                }

                // Table has changed

                $table->setChanged(true);

            }

            // Set comment

            if ($table->getComment() != $comment) {

                $table->setComment($comment);

                // Table has changed

                $table->setChanged(true);

            }

            // Recalculate the hash

            $structure->calculateHash(true);

            // If the hash has changed from the original one, change the version

            // and mark the structure as changed

            $origstructure = $dbdir->xml_file->getStructure();

            if ($structure->getHash() != $origstructure->getHash()) {

                $structure->setVersion(userdate(time(), '%Y%m%d', 99, false));

                $structure->setChanged(true);

            }

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

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

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

            }

        }

        // Return ok if arrived here

        return $result;

    }

}