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/>.

/**

 * This file contains the forms to create and edit an instance of this module

 *

 * @package   mod_assign

 * @copyright 2012 NetSpot {@link http://www.netspot.com.au}

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

 */

defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');

require_once($CFG->libdir.'/formslib.php');

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

/**

 * Assignment extension dates form

 *

 * @package   mod_assign

 * @copyright 2012 NetSpot {@link http://www.netspot.com.au}

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

 */

class mod_assign_extension_form extends moodleform {

    /** @var array $instance - The data passed to this form */

    private $instance;

    /**

     * Define the form - called by parent constructor

     */

    public function definition() {

        global $DB;

        $mform = $this->_form;

        $params = $this->_customdata;

        // Instance variable is used by the form validation function.

        $instance = $params['instance'];

        $this->instance = $instance;

        // Get the assignment class.

        /** @var assign $assign */

        $assign = $params['assign'];

        $userlist = $params['userlist'];

        // Load current extensions for all selected users.

        [$usercondition, $params] = $DB->get_in_or_equal($userlist);

        array_unshift($params, $assign->get_instance()->id);

        $userinfo = $DB->get_records_sql("

                SELECT u.*, auf.extensionduedate

                  FROM {user} u

             LEFT JOIN {assign_user_flags} auf ON auf.userid = u.id AND auf.assignment = ?

                 WHERE u.id $usercondition

            ", $params);

        // Prepare display of up to 5 users.

        // TODO Does not support custom user profile fields (MDL-70456).

        $extrauserfields = \core_user\fields::get_identity_fields($assign->get_context(), false);

        $displayedusercount = 0;

        $usershtml = '';

        foreach ($userlist as $userid) {

            $displayedusercount += 1;

            if ($displayedusercount > 5) {

                $usershtml .= get_string('moreusers', 'assign', count($userlist) - 5);

                break;

            }

            $user = $userinfo[$userid];

            $usershtml .= $assign->get_renderer()->render(

                new assign_user_summary($user,

                    $assign->get_course()->id,

                    has_capability('moodle/site:viewfullnames',

                        $assign->get_course_context()),

                    $assign->is_blind_marking(),

                    $assign->get_uniqueid_for_user($user->id),

                    $extrauserfields,

                    !$assign->is_active_user($userid)

                ),

            );

        }

        // Find the range of extensions that currently exist for these users.

        $earliestextension = null;

        $lateststextension = 0;

        $userswithoutanextension = 0;

        foreach ($userlist as $userid) {

            $user = $userinfo[$userid];

            if ($user->extensionduedate) {

                $lateststextension = max($lateststextension, $user->extensionduedate);

                if ($earliestextension !== null) {

                    $earliestextension = min($earliestextension, $user->extensionduedate);

                } else {

                    $earliestextension = $user->extensionduedate;

                }

            } else {

                $userswithoutanextension += 1;

            }

        }

        $listusersmessage = get_string('grantextensionforusers', 'assign', count($userlist));

        $mform->addElement('header', 'general', $listusersmessage);

        $mform->addElement('static', 'userslist', get_string('selectedusers', 'assign'), $usershtml);

        if ($instance->allowsubmissionsfromdate) {

            $mform->addElement('static', 'allowsubmissionsfromdate', get_string('allowsubmissionsfromdate', 'assign'),

                               userdate($instance->allowsubmissionsfromdate));

        }

        $finaldate = 0;

        if ($instance->duedate) {

            $mform->addElement('static', 'duedate', get_string('duedate', 'assign'), userdate($instance->duedate));

            $finaldate = $instance->duedate;

        }

        if ($instance->cutoffdate) {

            $mform->addElement('static', 'cutoffdate', get_string('cutoffdate', 'assign'), userdate($instance->cutoffdate));

            $finaldate = $instance->cutoffdate;

        }

        if ($userswithoutanextension == count($userlist)) {

            // All users don't have an extension yet.

            $currentdatesdisplay = get_string('extensionduedatenone', 'assign');

        } else {

            if ($earliestextension == $lateststextension) {

                $currentdatesdisplay = userdate($lateststextension);

            } else {

                $currentdatesdisplay = get_string('extensionduedaterange', 'assign', (object) [

                    'earliest' => userdate($earliestextension),

                    'latest' => userdate($lateststextension),

                ]);

            }

            if ($userswithoutanextension) {

                $currentdatesdisplay .= '<br>' . get_string('extensionduedatewithout', 'assign', $userswithoutanextension);

            }

        }

        $mform->addElement('static', 'currentextension', get_string('extensionduedatecurrent', 'assign'),

            $currentdatesdisplay);

        if ($lateststextension) {

            // If there are existing extensions, edit based on the current (latest) value.

            $defaultdate = $lateststextension;

        } else {

            // Otherwise take the later of the deadline and one minute before midnight tonight (server time).

            $endoftoday = new DateTimeImmutable('today 23:59', core_date::get_server_timezone_object());

            $defaultdate = max($finaldate, $endoftoday->getTimestamp());

        }

        $mform->addElement('date_time_selector', 'extensionduedate',

                           get_string('extensionduedate', 'assign'), array('optional'=>true));

        $mform->setDefault('extensionduedate', $defaultdate);

        $mform->addElement('hidden', 'id');

        $mform->setType('id', PARAM_INT);

        $mform->addElement('hidden', 'userid');

        $mform->setType('userid', PARAM_INT);

        $mform->addElement('hidden', 'selectedusers');

        $mform->setType('selectedusers', PARAM_SEQUENCE);

        $mform->addElement('hidden', 'action', 'saveextension');

        $mform->setType('action', PARAM_ALPHA);

        $this->add_action_buttons(true, get_string('savechanges', 'assign'));

    }

    /**

     * Perform validation on the extension form

     * @param array $data

     * @param array $files

     */

    public function validation($data, $files) {

        $errors = parent::validation($data, $files);

        if ($this->instance->duedate && $data['extensionduedate']) {

            if ($this->instance->duedate > $data['extensionduedate']) {

                $errors['extensionduedate'] = get_string('extensionnotafterduedate', 'assign');

            }

        }

        if ($this->instance->allowsubmissionsfromdate && $data['extensionduedate']) {

            if ($this->instance->allowsubmissionsfromdate > $data['extensionduedate']) {

                $errors['extensionduedate'] = get_string('extensionnotafterfromdate', 'assign');

            }

        }

        return $errors;

    }

}