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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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 * Grade deleted event.
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 *
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 * @package    core
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 * @copyright  2014 Mark Nelson <markn@moodle.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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namespace core\event;
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defined('MOODLE_INTERNAL') || die();
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/**
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 * Grade deleted event class.
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 *
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 * @property-read array $other {
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 *      Extra information about the event.
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 *
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 *      - int itemid: grade item id.
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 *      - bool overridden: is this a grade override?
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 *      - float finalgrade: (optional) the final grade value.
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 * }
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 *
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 * @package    core
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 * @since      Moodle 2.8
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 * @copyright  2014 Mark Nelson <markn@moodle.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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class grade_deleted extends base {
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    /** @var \grade_grade $grade */
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    protected $grade;
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    /**
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     * Init method.
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     *
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     * @return void
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     */
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    protected function init() {
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        $this->data['objecttable'] = 'grade_grades';
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        $this->data['crud'] = 'd';
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        $this->data['edulevel'] = self::LEVEL_TEACHING;
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    }
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    /**
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     * Utility method to create new event.
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     *
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     * @param \grade_grade $grade
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     * @return user_graded
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     */
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    public static function create_from_grade(\grade_grade $grade) {
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        $event = self::create(array(
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            'objectid'      => $grade->id,
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            'context'       => \context_course::instance($grade->grade_item->courseid),
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            'relateduserid' => $grade->userid,
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            'other'         => array(
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                'itemid'     => $grade->itemid,
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                'overridden' => !empty($grade->overridden),
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                'finalgrade' => $grade->finalgrade),
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        ));
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        $event->grade = $grade;
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        return $event;
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    }
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    /**
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     * Get grade object.
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     *
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     * @throws \coding_exception
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     * @return \grade_grade
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     */
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    public function get_grade() {
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        if ($this->is_restored()) {
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            throw new \coding_exception('get_grade() is intended for event observers only');
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        }
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        return $this->grade;
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    }
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    /**
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     * Return localised event name.
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     *
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     * @return string
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     */
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    public static function get_name() {
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        return get_string('eventgradedeleted', 'core_grades');
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    }
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    /**
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     * Returns description of what happened.
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     *
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     * @return string
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     */
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    public function get_description() {
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        return "The user with id '$this->userid' deleted the grade with id '$this->objectid' for the user with " .
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            "id '$this->relateduserid' for the grade item with id '{$this->other['itemid']}'.";
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    }
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    /**
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     * Custom validation.
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     *
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     * @throws \coding_exception when validation does not pass.
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     * @return void
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     */
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    protected function validate_data() {
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        parent::validate_data();
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        if (!isset($this->relateduserid)) {
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            throw new \coding_exception('The \'relateduserid\' must be set.');
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        }
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        if (!isset($this->other['itemid'])) {
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            throw new \coding_exception('The \'itemid\' value must be set in other.');
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        }
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        if (!isset($this->other['overridden'])) {
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            throw new \coding_exception('The \'overridden\' value must be set in other.');
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        }
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    }
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    public static function get_objectid_mapping() {
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        return array('db' => 'grade_grades', 'restore' => 'grade_grades');
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    }
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    public static function get_other_mapping() {
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        $othermapped = array();
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        $othermapped['itemid'] = array('db' => 'grade_items', 'restore' => 'grade_item');
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        return $othermapped;
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    }
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}