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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?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/>.

/**
 * Log iterator reader interface.
 *
 * @package    core
 * @copyright  2015 David Monllao
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace core\log;

defined('MOODLE_INTERNAL') || die();

/**
 * Log iterator reader interface.
 *
 * Replaces sql_select_reader adding functions
 * to return iterators.
 *
 * @since      Moodle 2.9
 * @package    core
 * @copyright  2015 David Monllao
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
interface sql_reader extends reader {

    /**
     * Fetch records using given criteria.
     *
     * @param string $selectwhere
     * @param array $params
     * @param string $sort
     * @param int $limitfrom
     * @param int $limitnum
     * @return \core\event\base[]
     */
    public function get_events_select($selectwhere, array $params, $sort, $limitfrom, $limitnum);

    /**
     * Return number of events matching given criteria.
     *
     * @param string $selectwhere
     * @param array $params
     * @return int
     */
    public function get_events_select_count($selectwhere, array $params);

    /**
> * Get whether events are present for the given select clause. * Fetch records using the given criteria returning an traversable list of events. > * * > * @param string $selectwhere select conditions. * Note that the returned object is Traversable, not Iterator, as we are returning > * @param array $params params. * EmptyIterator if we know there are no events, and EmptyIterator does not implement > * * Countable {@link https://bugs.php.net/bug.php?id=60577} so valid() should be checked > * @return bool Whether events available for the given conditions * in any case instead of a count(). > */ * > public function get_events_select_exists(string $selectwhere, array $params): bool; * Also note that the traversable object contains a recordset and it is very important > * that you close it after using it. > /**
* * @param string $selectwhere * @param array $params * @param string $sort * @param int $limitfrom * @param int $limitnum * @return \Traversable|\core\event\base[] Returns an iterator containing \core\event\base objects. */ public function get_events_select_iterator($selectwhere, array $params, $sort, $limitfrom, $limitnum); /** * Returns an event from the log data. *
< * @param stdClass $data Log data
> * @param \stdClass $data Log data
* @return \core\event\base */ public function get_log_event($data); }