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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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 * this file contains the cohort selection form to exclude cohorts
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 *
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 * File         cohort.php
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 * Encoding     UTF-8
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 * @copyright   Sebsoft.nl
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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 tool_usersuspension\forms\exclude;
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defined('MOODLE_INTERNAL') || die;
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require_once($CFG->libdir . '/formslib.php');
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/**
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 * tool_usersuspension\forms\cohort
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 *
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 * @package     tool_usersuspension
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 *
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 * @copyright   Sebsoft.nl
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 * @author      R.J. van Dongen <rogier@sebsoft.nl>
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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 cohort extends \moodleform {
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    /**
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     * form definition
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     */
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    public function definition() {
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        global $DB;
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        $mform = $this->_form;
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        $pfx = \tool_usersuspension\util::get_prefix();
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        $excludedcohorts = $DB->get_fieldset_select('tool_usersuspension_excl', 'refid',
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                "type = :{$pfx}type", array("{$pfx}type" => 'cohort'));
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        list($sqlin, $params) = $DB->get_in_or_equal($excludedcohorts, SQL_PARAMS_QM, 'param', false, true);
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        $cohorts = $DB->get_records_sql_menu('SELECT id,name FROM {cohort} WHERE id '. $sqlin, $params);
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        if (count($cohorts) == 0) {
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            $mform->addElement('static', 'xstat1', '', get_string('info:no-exclusion-cohorts', 'tool_usersuspension'));
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        } else {
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            $size = min(10, max(0, count($cohorts)));
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            $select1 = $mform->addElement('select', 'cohort', get_string('cohort', 'cohort'), $cohorts, array('size' => $size));
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            $select1->setMultiple(true);
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            $mform->addRule('cohort', get_string('required'), 'required', null, 'client');
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        }
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        $this->add_action_buttons(true, get_string('button:continue', 'tool_usersuspension'));
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    }
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    /**
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     * Process the posted form
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     *
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     * @throws \moodle_exception
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     */
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    public function process() {
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        global $DB;
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        $data = $this->get_data();
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        if ($data === null) {
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            return false;
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            \tool_usersuspension\util::print_notification(get_string('msg:exclusion:cohort:none-selected',
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                'tool_usersuspension'), 'success');
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        }
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        if (!empty($data->cohort)) {
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            foreach ($data->cohort as $cohortid) {
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                $cohort = $DB->get_record('cohort', array('id' => $cohortid));
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                $record = (object) array('type' => 'cohort',
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                    'refid' => $cohortid, 'timecreated' => time());
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                $DB->insert_record('tool_usersuspension_excl', $record);
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                \tool_usersuspension\util::print_notification(get_string('msg:exclusion:record:cohort:inserted',
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                            'tool_usersuspension', $cohort), 'success');
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            }
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        }
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    }
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}