<?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/>.

/**
 * Database upgrades for the RSS block.
 *
 * @package   block_rss_client
 * @copyright 2014 Davo Smith
 * @author    Neill Magill <neill.magill@nottingham.ac.uk>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL
 */
defined('MOODLE_INTERNAL') || die();

/**
 * Upgrade the block_rss_client database.
 *
 * @param int $oldversion The version number of the plugin that was installed.
 * @return boolean
 */
function xmldb_block_rss_client_upgrade($oldversion) {
    global $DB;
    $dbman = $DB->get_manager();

    if ($oldversion < 2015071700) {
        // Support for skipping RSS feeds for a while when they fail.
        $table = new xmldb_table('block_rss_client');
        // How many seconds we are currently ignoring this RSS feed for (due to an error).
        $field = new xmldb_field('skiptime', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'url');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        // When to next update this RSS feed.
        $field = new xmldb_field('skipuntil', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0', 'skiptime');
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }
        upgrade_block_savepoint(true, 2015071700, 'rss_client');
    }

    // Moodle v3.0.0 release upgrade line.
    // Put any upgrade step following this.

    return true;
}