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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
  • Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
  • PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
<?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/>.

/**
 * DML read/read-write database handle tests for mysqli_native_moodle_database
 *
 * @package    core
 * @category   dml
 * @copyright  2018 Srdjan Janković, Catalyst IT
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace core;

> use moodle_database; defined('MOODLE_INTERNAL') || die(); >
require_once(__DIR__.'/fixtures/read_slave_moodle_database_mock_mysqli.php'); /** * DML mysqli_native_moodle_database read slave specific tests * * @package core * @category dml * @copyright 2018 Catalyst IT * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later * @covers \mysqli_native_moodle_database */ class dml_mysqli_read_slave_test extends \base_testcase { /** * Test readonly handle is not used for reading from special pg_*() call queries, * pg_try_advisory_lock and pg_advisory_unlock. * * @return void */ public function test_lock() : void { $DB = new read_slave_moodle_database_mock_mysqli(); $this->assertEquals(0, $DB->perf_get_reads_slave()); $DB->query_start("SELECT GET_LOCK('lock',1)", null, SQL_QUERY_SELECT); $this->assertTrue($DB->db_handle_is_rw()); $DB->query_end(null); $this->assertEquals(0, $DB->perf_get_reads_slave()); $DB->query_start("SELECT RELEASE_LOCK('lock',1)", null, SQL_QUERY_SELECT); $this->assertTrue($DB->db_handle_is_rw()); $DB->query_end(null); $this->assertEquals(0, $DB->perf_get_reads_slave()); } /**
> * Test readonly handle is used for SQL_QUERY_AUX_READONLY queries. * Test readonly connection failure with real mysqli connection > * * > * @return void * @return void > */ */ > public function test_aux_readonly(): void { public function test_real_readslave_connect_fail() : void { > global $DB; global $DB; > > if ($DB->get_dbfamily() != 'mysql') { if ($DB->get_dbfamily() != 'mysql') { > $this->markTestSkipped("Not mysql"); $this->markTestSkipped("Not mysql"); > } } > > // Open second connection. // Open second connection. > $cfg = $DB->export_dbconfig(); $cfg = $DB->export_dbconfig(); > if (!isset($cfg->dboptions)) { if (!isset($cfg->dboptions)) { > $cfg->dboptions = []; $cfg->dboptions = array(); > } } > $cfg->dboptions['readonly'] = [ $cfg->dboptions['readonly'] = [ > 'instance' => [$cfg->dbhost] 'instance' => ['host.that.is.not'], > ]; 'connecttimeout' => 1 > $cfg->dboptions['dbengine'] = null; ]; > $cfg->dboptions['bulkinsertsize'] = null; > $db2 = \moodle_database::get_driver_instance($cfg->dbtype, $cfg->dblibrary); > // Get a separate disposable db connection handle with guaranteed 'readonly' config. $db2->connect($cfg->dbhost, $cfg->dbuser, $cfg->dbpass, $cfg->dbname, $cfg->prefix, $cfg->dboptions); > $db2 = moodle_database::get_driver_instance($cfg->dbtype, $cfg->dblibrary); $this->assertTrue(count($db2->get_records('user')) > 0); > $db2->connect($cfg->dbhost, $cfg->dbuser, $cfg->dbpass, $cfg->dbname, $cfg->prefix, $cfg->dboptions); } > } > $reads = $db2->perf_get_reads(); > $readsprimary = $reads - $db2->perf_get_reads_slave(); > > // Readonly handle queries. > > $db2->setup_is_unicodedb(); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave()); > > $db2->get_tables(); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave()); > > $db2->get_indexes('course'); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave()); > > $db2->get_columns('course'); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertEquals($readsprimary, $reads - $db2->perf_get_reads_slave()); > > // Readwrite handle queries. > > if (PHP_INT_SIZE !== 4) { > $rc = new \ReflectionClass(\mysqli_native_moodle_database::class); > $rcm = $rc->getMethod('insert_chunk_size'); > > $rcm->setAccessible(true); > $rcm->invoke($db2); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave()); > } > > $db2->get_dbengine(); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave()); > > $db2->diagnose(); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave()); > > $db2->get_row_format('course'); > $this->assertGreaterThan($reads, $reads = $db2->perf_get_reads()); > $this->assertGreaterThan($readsprimary, $readsprimary = $reads - $db2->perf_get_reads_slave()); > } > > /**
< $this->markTestSkipped("Not mysql");
> $this->markTestSkipped('Not mysql');
< $cfg->dboptions = array();
> $cfg->dboptions = [];
< $db2 = \moodle_database::get_driver_instance($cfg->dbtype, $cfg->dblibrary);
> $db2 = moodle_database::get_driver_instance($cfg->dbtype, $cfg->dblibrary);