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/>.

/**

 * Output the override actionbar for this activity.

 *

 * @package   mod_assign

 * @copyright 2021 Adrian Greeve <adrian@moodle.com>

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

 */

namespace mod_assign\output;

use core_availability\info_module;

use moodle_url;

use templatable;

use renderable;

use url_select;

use single_button;

/**

 * Output the override actionbar for this activity.

 *

 * @package   mod_assign

 * @copyright 2021 Adrian Greeve <adrian@moodle.com>

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

 */

class override_actionmenu implements templatable, renderable {

    /** @var moodle_url The current url for this page. */

    protected $currenturl;

    /** @var \cm_info course module information */

    protected $cm;

    /** @var bool Can all groups be accessed */

    protected $canaccessallgroups;

    /** @var array Groups related to this activity */

    protected $groups;

    /**

     * Constructor for this action menu.

     *

     * @param moodle_url $currenturl The current url for this page.

     * @param \cm_info $cm course module information.

     */

    public function __construct(moodle_url $currenturl, \cm_info $cm) {

        $this->currenturl = $currenturl;

        $this->cm = $cm;

        $groupmode = groups_get_activity_groupmode($this->cm);

        $this->canaccessallgroups = ($groupmode === NOGROUPS) ||

                has_capability('moodle/site:accessallgroups', $this->cm->context);

        $this->groups = $this->canaccessallgroups ? groups_get_all_groups($this->cm->course) :

                groups_get_activity_allowed_groups($this->cm);

    }

    /**

     * Create a select menu for overrides.

     *

     * @return url_select A url select object.

     */

    protected function get_select_menu(): url_select {

        $userlink = new moodle_url('/mod/assign/overrides.php', ['cmid' => $this->cm->id, 'mode' => 'user']);

        $grouplink = new moodle_url('/mod/assign/overrides.php', ['cmid' => $this->cm->id, 'mode' => 'group']);

        $menu = [

            $userlink->out(false) => get_string('useroverrides', 'mod_assign'),

            $grouplink->out(false) => get_string('groupoverrides', 'mod_assign'),

        ];

        return new url_select($menu, $this->currenturl->out(false), null, 'mod_assign_override_select');

    }

    /**

     * Whether to show groups or not. Assignments can be have group overrides if there are groups available in the course.

     * There is no restriction related to the assignment group setting.

     *

     * @return bool

     */

    protected function show_groups(): bool {

        if ($this->canaccessallgroups) {

            $groups = groups_get_all_groups($this->cm->course);

        } else {

            $groups = groups_get_activity_allowed_groups($this->cm);

        }

        return !(empty($groups));

    }

    /**

     * Whether to enable/disable user override button or not.

     *

     * @return bool

     */

    protected function show_useroverride(): bool {

        global $DB;

        $users = [];

        $context = $this->cm->context;

        if ($this->canaccessallgroups) {

            $users = get_enrolled_users($context, '', 0, 'u.id');

        } else if ($this->groups) {

            $enrolledjoin = get_enrolled_join($context, 'u.id');

            list($ingroupsql, $ingroupparams) = $DB->get_in_or_equal(array_keys($this->groups), SQL_PARAMS_NAMED);

            $params = $enrolledjoin->params + $ingroupparams;

            $sql = "SELECT u.id

                      FROM {user} u

                      JOIN {groups_members} gm ON gm.userid = u.id

                           {$enrolledjoin->joins}

                     WHERE gm.groupid $ingroupsql

                       AND {$enrolledjoin->wheres}";

            $users = $DB->get_records_sql($sql, $params);

        }

        $info = new info_module($this->cm);

        $users = $info->filter_user_list($users);

        return !empty($users);

    }

    /**

     * Data to be used in a template.

     *

     * @param \renderer_base $output renderer base output.

     * @return array The data to be used in a template.

     */

    public function export_for_template(\renderer_base $output): array {

        $type = $this->currenturl->get_param('mode');

        if ($type == 'user') {

            $text = get_string('addnewuseroverride', 'mod_assign');

        } else {

            $text = get_string('addnewgroupoverride', 'mod_assign');

        }

        $action = ($type == 'user') ? 'adduser' : 'addgroup';

        $params = ['cmid' => $this->currenturl->get_param('cmid'), 'action' => $action];

        $url = new moodle_url('/mod/assign/overrideedit.php', $params);

        $options = [];

        if ($action == 'addgroup' && !$this->show_groups()) {

            $options = ['disabled' => 'true'];

        } else if ($action === 'adduser' && !$this->show_useroverride()) {

            $options = ['disabled' => 'true'];

        }

        $overridebutton = new single_button($url, $text, 'post', single_button::BUTTON_PRIMARY, $options);

        $urlselect = $this->get_select_menu();

        return [

            'addoverride' => $overridebutton->export_for_template($output),

            'urlselect' => $urlselect->export_for_template($output)

        ];

    }

}