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<?php
namespace Codeception\Module;
/**
* Works with SQL database.
*
* The most important function of this module is cleaning database before each test.
* That's why this module was added into global configuration file: codeception.yml.
* To have your database properly cleaned you should configure it to access the database.
* Also provides actions to perform checks in database.
*
* In order to have your database populated with data you need a raw SQL dump.
* Just put it in `tests/_data` dir (by default) and specify path to it in config.
* Next time after database is cleared all your data will be restored from dump.
* Don't forget to include CREATE TABLE statements into it.
*
* Supported and tested databases are:
*
* * MySQL
* * SQLite (only file)
* * PostgreSQL
*
* Supported but not tested.
*
* * MSSQL
* * Oracle
*
* Connection is done by database Drivers, which are stored in Codeception\Lib\Driver namespace.
* Check out drivers if you get problems loading dumps and cleaning databases.
*
* ## Status
*
* * Maintainer: **davert**
* * stability:
* - Mysql: **stable**
* - SQLite: **stable**
* - Postgres: **beta**
* - MSSQL: **alpha**
* - Oracle: **alpha**
* * Contact: codecept@davert.mail.ua
*
* *Please review the code of non-stable modules and provide patches if you have issues.*
*
* ## Config
*
* * dsn *required* - PDO DSN
* * user *required* - user to access database
* * password *required* - password
* * dump - path to database dump.
* * populate: true - should the dump be loaded before test suite is started.
* * cleanup: true - should the dump be reloaded after each test
*
* ### Example
*
* modules:
* enabled: [Db]
* config:
* Db:
* dsn: 'mysql:host=localhost;dbname=testdb'
* user: 'root'
* password: ''
* dump: 'tests/_data/dump.sql'
* populate: true
* cleanup: false
*
* ## Public Properties
* * dbh - contains PDO connection.
* * driver - contains Connection Driver. See [list all available drivers](https://github.com/Codeception/Codeception/tree/master/src/Codeception/Util/Driver)
*
*/
use Codeception\Lib\Driver\Db as Driver;
use Codeception\Exception\Module as ModuleException;
use Codeception\Exception\ModuleConfig as ModuleConfigException;
use Codeception\Configuration as Configuration;
class Db extends \Codeception\Module implements \Codeception\Lib\Interfaces\Db
{
/**
* @api
* @var
*/
public $dbh;
/**
* @var
*/
protected $sql = array();
protected $config = array('populate' => true,
'cleanup' => true,
'dump' => null);
protected $populated = false;
/**
* @var \Codeception\Lib\Driver\Db
*/
public $driver;
protected $insertedIds = array();
protected $requiredFields = array('dsn', 'user', 'password');
public function _initialize()
{
if ($this->config['dump'] && ($this->config['cleanup'] or ($this->config['populate']))) {
if (!file_exists(Configuration::projectDir() . $this->config['dump'])) {
throw new ModuleConfigException(
__CLASS__,
"\nFile with dump doesn't exist.
Please, check path for sql file: " . $this->config['dump']
);
}
$sql = file_get_contents(Configuration::projectDir() . $this->config['dump']);
$sql = preg_replace('%/\*(?!!\d+)(?:(?!\*/).)*\*/%s', "", $sql);
$this->sql = explode("\n", $sql);
}
try {
$this->driver = Driver::create($this->config['dsn'], $this->config['user'], $this->config['password']);
} catch (\PDOException $e) {
throw new ModuleException(__CLASS__, $e->getMessage() . ' while creating PDO connection');
}
$this->dbh = $this->driver->getDbh();
// starting with loading dump
if ($this->config['populate']) {
$this->cleanup();
$this->loadDump();
$this->populated = true;
}
}
public function _before(\Codeception\TestCase $test)
{
if ($this->config['cleanup'] && !$this->populated) {
$this->cleanup();
$this->loadDump();
}
parent::_before($test);
}
public function _after(\Codeception\TestCase $test)
{
$this->populated = false;
$this->removeInserted();
parent::_after($test);
}
protected function removeInserted()
{
foreach ($this->insertedIds as $insertId) {
try {
$this->driver->deleteQuery($insertId['table'], $insertId['id']);
} catch (\Exception $e) {
$this->debug("coudn\'t delete record {$insertId['id']} from {$insertId['table']}");
}
}
$this->insertedIds = array();
}
protected function cleanup()
{
$dbh = $this->driver->getDbh();
if (! $dbh) {
throw new ModuleConfigException(
__CLASS__,
"No connection to database. Remove this module from config if you don't need database repopulation"
);
}
try {
// don't clear database for empty dump
if (! count($this->sql)) {
return;
}
$this->driver->cleanup();
} catch (\Exception $e) {
throw new ModuleException(__CLASS__, $e->getMessage());
}
}
protected function loadDump()
{
if (! $this->sql) {
return;
}
try {
$this->driver->load($this->sql);
} catch (\PDOException $e) {
throw new ModuleException(
__CLASS__,
$e->getMessage() . "\nSQL query being executed: " . $this->driver->sqlToRun
);
}
}
/**
* Inserts SQL record into database. This record will be erased after the test.
*
* ``` php
* <?php
* $I->haveInDatabase('users', array('name' => 'miles', 'email' => 'miles@davis.com'));
* ?>
* ```
*
* @param $table
* @param array $data
* @return integer $id
*/
public function haveInDatabase($table, array $data)
{
$query = $this->driver->insert($table, $data);
$this->debugSection('Query', $query);
$sth = $this->driver->getDbh()->prepare($query);
if (!$sth) {
$this->fail("Query '$query' can't be executed.");
}
$i = 1;
foreach ($data as $val) {
$sth->bindValue($i, $val);
$i++;
}
$res = $sth->execute();
if (!$res) {
$this->fail(sprintf("Record with %s couldn't be inserted into %s", json_encode($data), $table));
}
$lastInsertId = (int) $this->driver->lastInsertId($table);
$this->insertedIds[] = array('table' => $table, 'id' => $lastInsertId);
return $lastInsertId;
}
public function seeInDatabase($table, $criteria = array())
{
$res = $this->proceedSeeInDatabase($table, 'count(*)', $criteria);
\PHPUnit_Framework_Assert::assertGreaterThan(0, $res, 'No matching records found');
}
public function dontSeeInDatabase($table, $criteria = array())
{
$res = $this->proceedSeeInDatabase($table, 'count(*)',$criteria);
\PHPUnit_Framework_Assert::assertLessThan(1, $res);
}
protected function proceedSeeInDatabase($table, $column, $criteria)
{
$query = $this->driver->select($column, $table, $criteria);
$this->debugSection('Query', $query, json_encode($criteria));
$sth = $this->driver->getDbh()->prepare($query);
if (!$sth) {
$this->fail("Query '$query' can't be executed.");
}
$sth->execute(array_values($criteria));
return $sth->fetchColumn();
}
public function grabFromDatabase($table, $column, $criteria = array()) {
return $this->proceedSeeInDatabase($table, $column, $criteria);
}
}