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externallib.php
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externallib.php
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<?php
// This file is part of mod_publication for Moodle - http://moodle.org/
//
// It 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.
//
// It 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/>.
/**
* mod_publication external file
*
* @package mod_publication
* @author Philipp Hager
* @author Andreas Windbichler
* @copyright 2014 Academic Moodle Cooperation {@link http://www.academic-moodle-cooperation.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once($CFG->libdir . "/externallib.php");
require_once($CFG->dirroot . "/mod/publication/locallib.php");
/**
* Class mod_publication_external contains external functions used by mod_publication's AJAX
*
* @package mod_publication
* @author Philipp Hager
* @copyright 2014 Academic Moodle Cooperation {@link http://www.academic-moodle-cooperation.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class mod_publication_external extends external_api {
/**
* Returns description of method parameters
*
* @return external_function_parameters
*/
public static function get_onlinetextpreview_parameters() {
// Function get_onlinetextpreview_parameters() always return an external_function_parameters().
// The external_function_parameters constructor expects an array of external_description.
return new external_function_parameters(
// An external_description can be: external_value, external_single_structure or an external_multiple structure!
[
'itemid' => new external_value(PARAM_INT, 'Group\'s or user\'s ID'),
'cmid' => new external_value(PARAM_INT, 'Coursemodule ID')
]
);
}
/**
* The function itself
*
* @param int $itemid the itemid (user ID or group ID) whom the onlinetext belongs to!
* @param int $cmid the course-module ID
* @return string welcome message
*/
public static function get_onlinetextpreview($itemid, $cmid) {
global $DB;
// Parameters validation!
$params = self::validate_parameters(self::get_onlinetextpreview_parameters(),
[
'itemid' => $itemid,
'cmid' => $cmid
]);
$cm = get_coursemodule_from_id('publication', $params['cmid'], 0, false, MUST_EXIST);
$course = $DB->get_record('course', ['id' => $cm->course], '*', MUST_EXIST);
$context = context_module::instance($cm->id);
self::validate_context($context);
require_capability('mod/publication:view', $context);
require_login($course, true, $cm);
$text = publication::export_onlinetext_for_preview($params['itemid'], $cm->instance, $context->id);
return format_text($text, FORMAT_HTML);
}
/**
* Returns description of method result value
*
* @return external_description
*/
public static function get_onlinetextpreview_returns() {
return new external_value(PARAM_RAW, 'HTML snippet representing the online text to use in overlay', VALUE_OPTIONAL, '');
}
}