Proyectos de Subversion Moodle

<?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/>.

namespace mod_assign\external;

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

global $CFG;

require_once("$CFG->dirroot/mod/assign/locallib.php");

/**

 * Extend the base external_api class with mod_assign utility methods.

 *

 * @package    mod_assign

 * @author     Andrew Madden <andrewmadden@catalyst-au.net>

 * @copyright  2021 Catalyst IT

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class external_api extends \core_external\external_api {

    /**

     * Generate a warning in a standard structure for a known failure.

     *

     * @param int $assignmentid - The assignment

     * @param string $warningcode - The key for the warning message

     * @param string $detail - A description of the error

     * @return array - Warning structure containing item, itemid, warningcode, message

     */

    protected static function generate_warning(int $assignmentid, string $warningcode, string $detail): array {

        $warningmessages = [

            'couldnotlock' => 'Could not lock the submission for this user.',

            'couldnotunlock' => 'Could not unlock the submission for this user.',

            'couldnotsubmitforgrading' => 'Could not submit assignment for grading.',

            'couldnotrevealidentities' => 'Could not reveal identities.',

            'couldnotgrantextensions' => 'Could not grant submission date extensions.',

            'couldnotrevert' => 'Could not revert submission to draft.',

            'invalidparameters' => 'Invalid parameters.',

            'couldnotsavesubmission' => 'Could not save submission.',

            'couldnotsavegrade' => 'Could not save grade.',

            'couldnotstartsubmission' => 'Could not start submission with time limit.',

            'submissionnotopen' => 'This assignment is not open for submissions',

            'timelimitnotenabled' => 'Time limit is not enabled for assignment.',

            'opensubmissionexists' => 'Open assignment submission already exists.',

        ];

        $message = $warningmessages[$warningcode];

        if (empty($message)) {

            $message = 'Unknown warning type.';

        }

        return [

            'item' => s($detail),

            'itemid' => $assignmentid,

            'warningcode' => $warningcode,

            'message' => $message,

        ];

    }

    /**

     * Utility function for validating an assign.

     *

     * @param int $assignid assign instance id

     * @return array array containing the assign, course, context and course module objects

     * @since  Moodle 3.2

     */

    protected static function validate_assign(int $assignid): array {

        global $DB;

        // Request and permission validation.

        $assign = $DB->get_record('assign', ['id' => $assignid], 'id', MUST_EXIST);

        list($course, $cm) = get_course_and_cm_from_instance($assign, 'assign');

        $context = \context_module::instance($cm->id);

        // Please, note that is not required to check mod/assign:view because is done by validate_context->require_login.

        self::validate_context($context);

        $assign = new \assign($context, $cm, $course);

        return [$assign, $course, $cm, $context];

    }

    /**

     * Get a submission from an assignment for a user. Encapsulates checking whether it's a solo or team submission.

     *

     * @param \assign $assignment Assignment object.

     * @param int|null $userid User id.

     * @param int $groupid Group id.

     * @param bool $create Whether a new submission should be created.

     * @param int $attemptnumber Attempt number. Use -1 for last attempt.

     * @return bool|\stdClass

     */

    protected static function get_user_or_group_submission(\assign $assignment, int $userid = null,

            int $groupid = 0, bool $create = false, int $attemptnumber = -1) {

        if ($assignment->get_instance($userid)->teamsubmission) {

            $submission = $assignment->get_group_submission($userid, $groupid, $create, $attemptnumber);

        } else {

            $submission = $assignment->get_user_submission($userid, $create, $attemptnumber);

        }

        return $submission;

    }

}