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/>.

/**

 * Timeline block installation.

 *

 * @package    block_timeline

 * @copyright  2018 Ryan Wyllie <ryan@moodle.com>

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

 */

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

 /**

  * Add the timeline block to the dashboard for all users by default

  * when it is installed.

  */

function xmldb_block_timeline_install() {

    global $DB;

    if ($DB->count_records('block_instances') < 1) {

        // Only add the timeline block if it's being installed on an existing site.

        // For new sites it will be added by blocks_add_default_system_blocks().

        return;

    }

    if ($defaultmypage = $DB->get_record('my_pages', array('userid' => null, 'name' => '__default', 'private' => 1))) {

        $subpagepattern = $defaultmypage->id;

    } else {

        $subpagepattern = null;

    }

    $page = new moodle_page();

    $systemcontext = context_system::instance();

    $page->set_context($systemcontext);

    // Add the block to the default /my.

    $page->blocks->add_region(BLOCK_POS_RIGHT);

    $page->blocks->add_block('timeline', BLOCK_POS_RIGHT, 0, false, 'my-index', $subpagepattern);

    // Now we need to find all users that have viewed their dashboard because it'll have

    // made duplicates of the default block_instances for them so they won't see the new

    // timeline block without the admin resetting all of the dashboards.

    //

    // Instead we'll just add the timeline block to their dashboards here. We will only

    // add the timeline block if they still have the myoverview block.

    $sql = "SELECT parentcontextid, subpagepattern

            FROM {block_instances}

            WHERE pagetypepattern = 'my-index'

            AND blockname = 'myoverview'

            AND parentcontextid != ?";

    $params = [$systemcontext->id];

    $existingrecords = $DB->get_recordset_sql($sql, $params);

    $blockinstances = [];

    $seencontexts = [];

    $now = time();

    foreach ($existingrecords as $existingrecord) {

        $parentcontextid = $existingrecord->parentcontextid;

        if (isset($seencontexts[$parentcontextid])) {

            // If we've seen this context already then skip it because we don't want

            // to add duplicate timeline blocks to the same context. This happens

            // if something funny is going on with the subpagepattern.

            continue;

        } else {

            $seencontexts[$parentcontextid] = true;

        }

        $blockinstances[] = [

            'blockname' => 'timeline',

            'parentcontextid' => $parentcontextid,

            'showinsubcontexts' => false,

            'pagetypepattern' => 'my-index',

            'subpagepattern' => $existingrecord->subpagepattern,

            'defaultregion' => BLOCK_POS_RIGHT,

            'defaultweight' => 0,

            'configdata' => '',

            'timecreated' => $now,

            'timemodified' => $now,

        ];

        if (count($blockinstances) >= 1000) {

            // Insert after every 1000 records so that the memory usage doesn't

            // get out of control.

            $DB->insert_records('block_instances', $blockinstances);

            $blockinstances = [];

        }

    }

    $existingrecords->close();

    if (!empty($blockinstances)) {

        // Insert what ever is left over.

        $DB->insert_records('block_instances', $blockinstances);

    }

}