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<?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/>.
/**
* Database driver test class for testing moodle_read_slave_trait
*
* @package core
* @category dml
* @copyright 2018 Srdjan Janković, Catalyst IT
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once(__DIR__.'/test_moodle_database.php');
require_once(__DIR__.'/../../moodle_read_slave_trait.php');
/**
* Database driver test class with moodle_read_slave_trait
*
* @package core
* @category dml
* @copyright 2018 Catalyst IT
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class read_slave_moodle_database extends test_moodle_database {
use moodle_read_slave_trait;
/** @var string */
protected $handle;
/**
* Does not connect to the database. Sets handle property to $dbhost
* @param string $dbhost
* @param string $dbuser
* @param string $dbpass
* @param string $dbname
* @param mixed $prefix
* @param array $dboptions
* @return bool true
*/
public function raw_connect(string $dbhost, string $dbuser, string $dbpass, string $dbname, $prefix, array $dboptions = null): bool {
$dbport = isset($dboptions['dbport']) ? $dboptions['dbport'] : "";
$this->handle = implode(':', [$dbhost, $dbport, $dbuser, $dbpass]);
$this->prefix = $prefix;
if ($dbhost == 'test_ro_fail') {
throw new dml_connection_exception($dbhost);
}
return true;
}
/**
* Begin database transaction
* @return void
*/
protected function begin_transaction() {
}
/**
* Commit database transaction
* @return void
*/
protected function commit_transaction() {
}
/**
* Abort database transaction
* @return void
*/
protected function rollback_transaction() {
$this->txnhandle = $this->handle;
}
/**
* Query wrapper that calls query_start() and query_end()
* @param string $sql
* @param array $params
* @param int $querytype
* @return string $handle handle property
*/
private function with_query_start_end($sql, array $params = null, $querytype) {
$this->query_start($sql, $params, $querytype);
$ret = $this->handle;
$this->query_end(null);
return $ret;
}
/**
* get_dbhwrite()
* @return string $dbhwrite handle property
*/
public function get_dbhwrite() {
return $this->dbhwrite;
}
/**
* Calls with_query_start_end()
* @param string $sql
* @param array $params
* @return bool true
* @throws Exception
*/
public function execute($sql, array $params = null) {
list($sql, $params, $type) = $this->fix_sql_params($sql, $params);
return $this->with_query_start_end($sql, $params, SQL_QUERY_UPDATE);
}
/**
* get_records_sql() override, calls with_query_start_end()
* @param string $sql the SQL select query to execute.
* @param array $params array of sql parameters
* @param int $limitfrom return a subset of records, starting at this point (optional).
* @param int $limitnum return a subset comprising this many records (optional, required if $limitfrom is set).
* @return string $handle handle property
*/
public function get_records_sql($sql, array $params = null, $limitfrom = 0, $limitnum = 0) {
list($sql, $params, $type) = $this->fix_sql_params($sql, $params);
return $this->with_query_start_end($sql, $params, SQL_QUERY_SELECT);
}
/**
* Calls with_query_start_end()
* @param string $sql
* @param array $params
* @param int $limitfrom
* @param int $limitnum
* @return bool true
*/
public function get_recordset_sql($sql, array $params = null, $limitfrom = 0, $limitnum = 0) {
list($sql, $params, $type) = $this->fix_sql_params($sql, $params);
return $this->with_query_start_end($sql, $params, SQL_QUERY_SELECT);
}
/**
* Calls with_query_start_end()
* @param string $table
* @param array $params
* @param bool $returnid
* @param bool $bulk
* @param bool $customsequence
* @return string $handle handle property
*/
public function insert_record_raw($table, $params, $returnid = true, $bulk = false, $customsequence = false) {
$fields = implode(',', array_keys($params));
$i = 1;
foreach ($params as $value) {
$values[] = "\$".$i++;
}
$values = implode(',', $values);
$sql = "INSERT INTO {$this->prefix}$table ($fields) VALUES($values)";
return $this->with_query_start_end($sql, $params, SQL_QUERY_INSERT);
}
/**
* Calls with_query_start_end()
* @param string $table
* @param array $params
* @param bool $bulk
* @return string $handle handle property
*/
public function update_record_raw($table, $params, $bulk = false) {
$id = $params['id'];
unset($params['id']);
$i = 1;
$sets = array();
foreach ($params as $field => $value) {
$sets[] = "$field = \$".$i++;
}
$params[] = $id;
$sets = implode(',', $sets);
$sql = "UPDATE {$this->prefix}$table SET $sets WHERE id=\$".$i;
return $this->with_query_start_end($sql, $params, SQL_QUERY_UPDATE);
}
/**
* Gets handle property
* @return string $handle handle property
*/
protected function get_db_handle() {
return $this->handle;
}
/**
* Sets handle property
* @param string $dbh
* @return void
*/
protected function set_db_handle($dbh) {
$this->handle = $dbh;
}
/**
* Add temptable
* @param string $temptable
* @return void
*/
public function add_temptable($temptable) {
$this->temptables->add_temptable($temptable);
}
/**
* Remove temptable
* @param string $temptable
* @return void
*/
public function delete_temptable($temptable) {
$this->temptables->delete_temptable($temptable);
}
/**
* Is session lock supported in this driver?
* @return bool
*/
public function session_lock_supported() {
return true;
}
}