FixtureController.php 8.37 KB
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<?php
/**
 * @link http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license http://www.yiiframework.com/license/
 */

namespace yii\console\controllers;

use Yii;
use yii\console\Controller;
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use yii\console\Exception;
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use yii\helpers\FileHelper;
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use yii\test\DbTestTrait;
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use yii\helpers\Console;
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/**
 * This command manages fixtures load to the database tables.
 * You can specify different options of this command to point fixture manager
 * to the specific tables of the different database connections.
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 *
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 * To use this command simply configure your console.php config like this:
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 *
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 * ~~~
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 * 'db' => [
 *     'class' => 'yii\db\Connection',
 *     'dsn' => 'mysql:host=localhost;dbname={your_database}',
 *     'username' => '{your_db_user}',
 *     'password' => '',
 *     'charset' => 'utf8',
 * ],
 * 'fixture' => [
 *     'class' => 'yii\test\DbFixtureManager',
 * ],
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 * ~~~
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 *
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 * ~~~
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 * #load fixtures under $fixturePath to the "users" table
 * yii fixture/apply users
 *
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 * #also a short version of this command (generate action is default)
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 * yii fixture users
 *
 * #load fixtures under $fixturePath to the "users" table to the different connection
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 * yii fixture/apply users --db=someOtherDbConneciton
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 *
 * #load fixtures under different $fixturePath to the "users" table.
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 * yii fixture/apply users --fixturePath=@app/some/other/path/to/fixtures
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 * ~~~
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 *
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 * @author Mark Jebri <mark.github@yandex.ru>
 * @since 2.0
 */
class FixtureController extends Controller
{
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	use DbTestTrait;
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	/**
	 * type of fixture apply to database
	 */
	const APPLY_ALL = 'all';
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	/**
	 * @var string controller default action ID.
	 */
	public $defaultAction = 'apply';
	/**
	 * Alias to the path, where all fixtures are stored.
	 * @var string
	 */
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	public $fixturePath = '@tests/unit/fixtures';
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	/**
	 * Id of the database connection component of the application.
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	 * @var string
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	 */
	public $db = 'db';

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	/**
	 * Returns the names of the global options for this command.
	 * @return array the names of the global options for this command.
	 */
	public function globalOptions()
	{
		return array_merge(parent::globalOptions(), [
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			'db', 'fixturePath'
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		]);
	}

	/**
	 * This method is invoked right before an action is to be executed (after all possible filters.)
	 * It checks that fixtures path and database connection are available.
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	 * @param \yii\base\Action $action
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	 * @return boolean
	 */
	public function beforeAction($action)
	{
		if (parent::beforeAction($action)) {
			$this->checkRequirements();
			return true;
		} else {
			return false;
		}
	}

	/**
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	 * Apply given fixture to the table. You can load several fixtures specifying
	 * their names separated with commas, like: tbl_user,tbl_profile. Be sure there is no
	 * whitespace between tables names.
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	 * @param array $fixtures
	 * @throws \yii\console\Exception
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	 */
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	public function actionApply(array $fixtures)
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	{
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		if ($this->getFixtureManager() === null) {
			throw new Exception('Fixture manager is not configured properly. Please refer to official documentation for this purposes.');
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		}

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		$foundFixtures = $this->findFixtures($fixtures);

		if (!$this->needToApplyAll($fixtures[0])) {
			$notFoundFixtures = array_diff($fixtures, $foundFixtures);

			if ($notFoundFixtures) {
				$this->notifyNotFound($notFoundFixtures);
			}
		}

		if (!$foundFixtures) {
			throw new Exception("No files were found by name: \"" . implode(', ', $fixtures) . "\".\n"
				. "Check that fixtures with these name exists, under fixtures path: \n\"" . Yii::getAlias($this->fixturePath) . "\"."
			);			
		}

		if (!$this->confirmApply($foundFixtures)) {
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			return;
		}

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		$this->getFixtureManager()->basePath = $this->fixturePath;
		$this->getFixtureManager()->db = $this->db;
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		$transaction = Yii::$app->db->beginTransaction();

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		try {
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			$this->loadFixtures($foundFixtures);
			$transaction->commit();

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		} catch (\Exception $e) {
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			$transaction->rollback();
			$this->stdout("Exception occured, transaction rollback. Tables will be in same state.\n", Console::BG_RED);
			throw $e;
		}
		$this->notifySuccess($foundFixtures);
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	}

	/**
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	 * Truncate given table and clear all fixtures from it. You can clear several tables specifying
	 * their names separated with commas, like: tbl_user,tbl_profile. Be sure there is no
	 * whitespace between tables names.
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	 * @param array|string $tables
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	 */
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	public function actionClear(array $tables)
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	{		
		if ($this->needToApplyAll($tables[0])) {
			$tables = $this->getDbConnection()->schema->getTableNames();
		}

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		if (!$this->confirmClear($tables)) {
			return;
		}

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		$transaction = Yii::$app->db->beginTransaction();

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		try {
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			$this->getDbConnection()->createCommand()->checkIntegrity(false)->execute();

			foreach($tables as $table) {
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				$this->getDbConnection()->createCommand()->delete($table)->execute();
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				$this->getDbConnection()->createCommand()->resetSequence($table)->execute();
				$this->stdout("    Table \"{$table}\" was successfully cleared. \n", Console::FG_GREEN);
			}

			$this->getDbConnection()->createCommand()->checkIntegrity(true)->execute();
			$transaction->commit();

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		} catch (\Exception $e) {
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			$transaction->rollback();
			$this->stdout("Exception occured, transaction rollback. Tables will be in same state.\n", Console::BG_RED);
			throw $e;
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		}
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	}

	/**
	 * Checks if the database and fixtures path are available.
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	 * @throws Exception
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	 */
	public function checkRequirements()
	{
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		$path = Yii::getAlias($this->fixturePath, false);
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		if (!is_dir($path) || !is_writable($path)) {
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			throw new Exception("The fixtures path \"{$this->fixturePath}\" not exist or is not writable.");
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		}

	}

	/**
	 * Returns database connection component
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	 * @return \yii\db\Connection
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	 * @throws Exception if [[db]] is invalid.
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	 */
	public function getDbConnection()
	{
		$db = Yii::$app->getComponent($this->db);

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		if ($db === null) {
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			throw new Exception("There is no database connection component with id \"{$this->db}\".");
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		}

		return $db;
	}

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	/**
	 * Notifies user that fixtures were successfully loaded.
	 * @param array $fixtures
	 */
	private function notifySuccess($fixtures)
	{
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		$this->stdout("Fixtures were successfully loaded from path:\n", Console::FG_YELLOW);
		$this->stdout(Yii::getAlias($this->fixturePath) . "\n\n", Console::FG_GREEN);
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		$this->outputList($fixtures);
	}
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	/**
	 * Notifies user that fixtures were not found under fixtures path.
	 * @param array $fixtures
	 */
	private function notifyNotFound($fixtures)
	{
		$this->stdout("Some fixtures were not found under path:\n", Console::BG_RED);
		$this->stdout(Yii::getAlias($this->fixturePath) . "\n\n", Console::FG_GREEN);
		$this->outputList($fixtures);
		$this->stdout("\n");
	}

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	/**
	 * Prompts user with confirmation if fixtures should be loaded.
	 * @param array $fixtures
	 * @return boolean
	 */
	private function confirmApply($fixtures)
	{
		$this->stdout("Fixtures will be loaded from path: \n", Console::FG_YELLOW);
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		$this->stdout(Yii::getAlias($this->fixturePath) . "\n\n", Console::FG_GREEN);
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		$this->outputList($fixtures);
		return $this->confirm('Load to database above fixtures?');
	}

	/**
	 * Prompts user with confirmation for tables that should be cleared.
	 * @param array $tables
	 * @return boolean
	 */
	private function confirmClear($tables)
	{
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		$this->stdout("Tables below will be cleared:\n\n", Console::FG_YELLOW);
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		$this->outputList($tables);
		return $this->confirm('Clear tables?');
	}

	/**
	 * Outputs data to the console as a list.
	 * @param array $data
	 */
	private function outputList($data)
	{
		foreach($data as $index => $item) {
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			$this->stdout("    " . ($index + 1) . ". {$item}\n", Console::FG_GREEN);
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		}
	}
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	/**
	 * Checks if needed to apply all fixtures.
	 * @param string $fixture
	 * @return bool
	 */
	public function needToApplyAll($fixture)
	{
		return $fixture == self::APPLY_ALL;
	}

	/**
	 * @param array $fixtures
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	 * @return array Array of found fixtures. These may differer from input parameter as not all fixtures may exists.
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	 */
	private function findFixtures(array $fixtures)
	{
		$fixturesPath = Yii::getAlias($this->fixturePath);
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		$filesToSearch = ['.php'];
		if (!$this->needToApplyAll($fixtures[0])) {
			$filesToSearch = [];
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			foreach ($fixtures as $fileName) {
				$filesToSearch[] = $fileName . '.php';
			}
		}
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		$files = FileHelper::findFiles($fixturesPath, ['only' => $filesToSearch]);
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		$foundFixtures = [];

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		foreach ($files as $fixture) {
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			$foundFixtures[] = basename($fixture , '.php');
		}

		return $foundFixtures;
	}

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}