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<?php |
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namespace Kaliop\eZMigrationBundle\Core\StorageHandler\Database; |
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use Doctrine\DBAL\Exception\UniqueConstraintViolationException; |
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use Doctrine\DBAL\Schema\Schema; |
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use eZ\Publish\Core\Persistence\Database\DatabaseHandler; |
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use eZ\Publish\Core\Persistence\Database\QueryException; |
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use eZ\Publish\Core\Persistence\Database\SelectQuery; |
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use Kaliop\eZMigrationBundle\API\StorageHandlerInterface; |
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use Kaliop\eZMigrationBundle\API\Collection\MigrationCollection; |
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use Kaliop\eZMigrationBundle\API\Exception\MigrationBundleException; |
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use Kaliop\eZMigrationBundle\API\Value\Migration as APIMigration; |
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use Kaliop\eZMigrationBundle\API\Value\MigrationDefinition; |
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use Kaliop\eZMigrationBundle\API\ConfigResolverInterface; |
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/** |
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* Database-backed storage for info on executed migrations |
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* |
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* @todo replace all usage of the ezcdb api with the doctrine dbal one, so that we only depend on one |
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*/ |
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class Migration extends TableStorage implements StorageHandlerInterface |
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{ |
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protected $fieldList = 'migration, md5, path, execution_date, status, execution_error'; |
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/** |
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* @param DatabaseHandler $dbHandler |
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* @param string $tableNameParameter |
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* @param ConfigResolverInterface $configResolver |
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* @param array $tableCreationOptions |
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* @throws \Exception |
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*/ |
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public function __construct(DatabaseHandler $dbHandler, $tableNameParameter = 'kaliop_migrations', ConfigResolverInterface $configResolver = null, $tableCreationOptions = array()) |
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{ |
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parent::__construct($dbHandler, $tableNameParameter, $configResolver, $tableCreationOptions); |
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} |
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/** |
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* @param int $limit |
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* @param int $offset |
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* @return MigrationCollection |
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*/ |
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public function loadMigrations($limit = null, $offset = null) |
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{ |
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return $this->loadMigrationsInner(null, null, $limit, $offset); |
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} |
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/** |
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* @param int $status |
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* @param int $limit |
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* @param int $offset |
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* @return MigrationCollection |
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*/ |
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public function loadMigrationsByStatus($status, $limit = null, $offset = null) |
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{ |
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return $this->loadMigrationsInner($status, null, $limit, $offset); |
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} |
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public function loadMigrationsByPaths($paths, $limit = null, $offset = null) |
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{ |
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return $this->loadMigrationsInner(null, $paths, $limit, $offset); |
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} |
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/** |
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* @param int $status |
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* @param null|string[] $paths |
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* @param int $limit |
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* @param int $offset |
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* @return MigrationCollection |
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*/ |
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protected function loadMigrationsInner($status = null, $paths = array(), $limit = null, $offset = null) |
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{ |
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$this->createTableIfNeeded(); |
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/** @var \eZ\Publish\Core\Persistence\Database\SelectQuery $q */ |
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$q = $this->dbHandler->createSelectQuery(); |
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$q->select($this->fieldList) |
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->from($this->tableName) |
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->orderBy('migration', SelectQuery::ASC); |
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if ($status !== null || (is_array($paths) && count($paths))) { |
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$exps = []; |
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if ($status !== null) { |
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$exps[] = $q->expr->eq('status', $q->bindValue($status)); |
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} |
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if (is_array($paths)) { |
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foreach ($paths as $i => $path) { |
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if ($path === '') { |
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unset($paths[$i]); |
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} |
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} |
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if (count($paths)) { |
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$pexps = array(); |
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foreach ($paths as $path) { |
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// NB: this works fine only as long both the paths stored in the db and the ones passed in follow |
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// the same convention regarding path normalization |
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/// @todo use a proper db-aware escaping function |
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$pexps[] = $q->expr->like('path', "'" . str_replace(array('_', '%', "'"), array('\_', '\%', "''"), $path) . '%' . "'"); |
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} |
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} |
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$exps[] = $q->expr->lor($pexps); |
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} |
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$q->where($q->expr->land($exps)); |
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} |
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if ($limit > 0 || $offset > 0) { |
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if ($limit <= 0) { |
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$limit = null; |
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} |
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if ($offset == 0) { |
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$offset = null; |
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} |
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$q->limit($limit, $offset); |
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} |
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$stmt = $q->prepare(); |
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$stmt->execute(); |
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$results = $stmt->fetchAll(); |
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$migrations = array(); |
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foreach ($results as $result) { |
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$migrations[$result['migration']] = $this->arrayToMigration($result); |
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} |
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return new MigrationCollection($migrations); |
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} |
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/** |
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* @param string $migrationName |
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* @return APIMigration|null |
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*/ |
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public function loadMigration($migrationName) |
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{ |
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$this->createTableIfNeeded(); |
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/** @var \eZ\Publish\Core\Persistence\Database\SelectQuery $q */ |
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$q = $this->dbHandler->createSelectQuery(); |
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$q->select($this->fieldList) |
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->from($this->tableName) |
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->where($q->expr->eq('migration', $q->bindValue($migrationName))); |
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$stmt = $q->prepare(); |
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$stmt->execute(); |
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$result = $stmt->fetch(\PDO::FETCH_ASSOC); |
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if (is_array($result) && !empty($result)) { |
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return $this->arrayToMigration($result); |
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} |
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return null; |
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} |
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/** |
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* Creates and stores a new migration (leaving it in TODO status) |
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* @param MigrationDefinition $migrationDefinition |
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* @return APIMigration |
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* @throws \Exception If the migration exists already (we rely on the PK for that) |
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*/ |
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public function addMigration(MigrationDefinition $migrationDefinition) |
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{ |
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$this->createTableIfNeeded(); |
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$conn = $this->getConnection(); |
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$migration = new APIMigration( |
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$migrationDefinition->name, |
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md5($migrationDefinition->rawDefinition), |
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$migrationDefinition->path, |
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null, |
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APIMigration::STATUS_TODO |
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); |
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try { |
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$conn->insert($this->tableName, $this->migrationToArray($migration)); |
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} catch (UniqueConstraintViolationException $e) { |
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throw new MigrationBundleException("Migration '{$migrationDefinition->name}' already exists"); |
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} |
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return $migration; |
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} |
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/** |
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* Starts a migration, given its definition: stores its status in the db, returns the Migration object |
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* |
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* @param MigrationDefinition $migrationDefinition |
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* @param bool $force when true, starts migrations even if they already exist in DONE, SKIPPED status |
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* @return APIMigration |
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* @throws \Exception if migration was already executing or already done |
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* @todo add a parameter to allow re-execution of already-done migrations |
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*/ |
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public function startMigration(MigrationDefinition $migrationDefinition, $force = false) |
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{ |
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return $this->createMigration($migrationDefinition, APIMigration::STATUS_STARTED, 'started', $force); |
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} |
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/** |
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* Stops a migration by storing it in the db. Migration status can not be 'started' |
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* |
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* NB: if this call happens within another DB transaction which has already been flagged for rollback, the result |
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* will be that a RuntimeException is thrown, as Doctrine does not allow to call commit() after rollback(). |
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* One way to fix the problem would be not to use a transaction and select-for-update here, but since that is the |
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* best way to insure atomic updates, I am loath to remove it. |
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* A known workaround is to call the Doctrine Connection method setNestTransactionsWithSavepoints(true); this can |
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* be achieved as simply as setting the parameter 'use_savepoints' in the doctrine connection configuration. |
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* |
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* @param APIMigration $migration |
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* @param bool $force When true, the migration will be updated even if it was not in 'started' status |
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* @throws \Exception If the migration was not started (unless $force=true) |
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*/ |
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public function endMigration(APIMigration $migration, $force = false) |
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{ |
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if ($migration->status == APIMigration::STATUS_STARTED) { |
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throw new MigrationBundleException($this->getEntityName($migration)." '{$migration->name}' can not be ended as its status is 'started'..."); |
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} |
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$this->createTableIfNeeded(); |
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// select for update |
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// annoyingly enough, neither Doctrine nor EZP provide built in support for 'FOR UPDATE' in their query builders... |
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// at least the doctrine one allows us to still use parameter binding when we add our sql particle |
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$conn = $this->getConnection(); |
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$qb = $conn->createQueryBuilder(); |
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$qb->select('*') |
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->from($this->tableName, 'm') |
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->where('migration = ?'); |
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$sql = $qb->getSQL() . ' FOR UPDATE'; |
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$conn->beginTransaction(); |
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$stmt = $conn->executeQuery($sql, array($migration->name)); |
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$existingMigrationData = $stmt->fetch(\PDO::FETCH_ASSOC); |
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// fail if it was not executing |
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if (!is_array($existingMigrationData)) { |
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// commit to release the lock |
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$conn->commit(); |
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throw new MigrationBundleException($this->getEntityName($migration)." '{$migration->name}' can not be ended as it is not found"); |
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} |
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if (($existingMigrationData['status'] != APIMigration::STATUS_STARTED) && !$force) { |
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// commit to release the lock |
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$conn->commit(); |
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throw new MigrationBundleException($this->getEntityName($migration)." '{$migration->name}' can not be ended as it is not executing"); |
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} |
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$conn->update( |
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$this->tableName, |
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array( |
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'status' => $migration->status, |
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/// @todo use mb_substr (if all dbs we support count col length not in bytes but in chars...) |
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'execution_error' => substr($migration->executionError, 0, 4000), |
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'execution_date' => $migration->executionDate |
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), |
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array('migration' => $migration->name) |
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); |
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$conn->commit(); |
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} |
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/** |
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* Removes a Migration from the table - regardless of its state! |
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* |
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* @param APIMigration $migration |
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*/ |
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108 |
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public function deleteMigration(APIMigration $migration) |
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{ |
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108 |
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$this->createTableIfNeeded(); |
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108 |
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$conn = $this->getConnection(); |
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108 |
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$conn->delete($this->tableName, array('migration' => $migration->name)); |
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} |
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/** |
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* Skips a migration by storing it in the db. Migration status can not be 'started' |
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* |
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* @param MigrationDefinition $migrationDefinition |
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* @return APIMigration |
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* @throws \Exception If the migration was already executed or is executing |
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*/ |
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1 |
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public function skipMigration(MigrationDefinition $migrationDefinition) |
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{ |
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1 |
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return $this->createMigration($migrationDefinition, APIMigration::STATUS_SKIPPED, 'skipped'); |
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} |
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/** |
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* @param MigrationDefinition $migrationDefinition |
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* @param int $status NB: atm not all statuses are supported the same way. IE. logical checks against the db data |
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* will be done for some statuses but not for others |
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* @param string $action |
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* @param bool $force |
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* @return APIMigration |
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290
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* @throws \Exception |
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*/ |
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292
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90 |
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protected function createMigration(MigrationDefinition $migrationDefinition, $status, $action, $force = false) |
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293
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{ |
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294
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90 |
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$this->createTableIfNeeded(); |
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// select for update |
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297
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298
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// annoyingly enough, neither Doctrine nor EZP provide built in support for 'FOR UPDATE' in their query builders... |
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299
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// at least the doctrine one allows us to still use parameter binding when we add our sql particle |
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300
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90 |
|
$conn = $this->getConnection(); |
|
301
|
|
|
|
|
302
|
90 |
|
$qb = $conn->createQueryBuilder(); |
|
303
|
90 |
|
$qb->select('*') |
|
304
|
90 |
|
->from($this->tableName, 'm') |
|
305
|
90 |
|
->where('migration = ?'); |
|
306
|
90 |
|
$sql = $qb->getSQL() . ' FOR UPDATE'; |
|
307
|
|
|
|
|
308
|
90 |
|
$conn->beginTransaction(); |
|
309
|
|
|
|
|
310
|
90 |
|
$stmt = $conn->executeQuery($sql, array($migrationDefinition->name)); |
|
311
|
90 |
|
$existingMigrationData = $stmt->fetch(\PDO::FETCH_ASSOC); |
|
312
|
|
|
|
|
313
|
90 |
|
if (is_array($existingMigrationData)) { |
|
314
|
|
|
// migration exists |
|
315
|
|
|
|
|
316
|
|
|
// fail if it was already executing |
|
317
|
71 |
|
if ($existingMigrationData['status'] == APIMigration::STATUS_STARTED) { |
|
318
|
|
|
// commit to release the lock |
|
319
|
|
|
$conn->commit(); |
|
320
|
|
|
throw new MigrationBundleException("Migration '{$migrationDefinition->name}' can not be $action as it is already executing"); |
|
321
|
|
|
} |
|
322
|
|
|
// fail if it was already already done, unless in 'force' mode |
|
323
|
71 |
|
if (!$force) { |
|
324
|
71 |
|
if ($existingMigrationData['status'] == APIMigration::STATUS_DONE) { |
|
325
|
|
|
// commit to release the lock |
|
326
|
|
|
$conn->commit(); |
|
327
|
|
|
throw new MigrationBundleException("Migration '{$migrationDefinition->name}' can not be $action as it was already executed"); |
|
328
|
|
|
} |
|
329
|
71 |
|
if ($existingMigrationData['status'] == APIMigration::STATUS_SKIPPED) { |
|
330
|
|
|
// commit to release the lock |
|
331
|
|
|
$conn->commit(); |
|
332
|
|
|
throw new MigrationBundleException("Migration '{$migrationDefinition->name}' can not be $action as it was already skipped"); |
|
333
|
|
|
} |
|
334
|
|
|
} |
|
335
|
|
|
|
|
336
|
|
|
// do not set migration start date if we are skipping it |
|
337
|
71 |
|
$migration = new APIMigration( |
|
338
|
71 |
|
$migrationDefinition->name, |
|
339
|
71 |
|
md5($migrationDefinition->rawDefinition), |
|
340
|
71 |
|
$migrationDefinition->path, |
|
341
|
71 |
|
($status == APIMigration::STATUS_SKIPPED ? null : time()), |
|
342
|
|
|
$status |
|
343
|
|
|
); |
|
344
|
71 |
|
$conn->update( |
|
345
|
71 |
|
$this->tableName, |
|
346
|
|
|
array( |
|
347
|
71 |
|
'execution_date' => $migration->executionDate, |
|
348
|
71 |
|
'status' => $status, |
|
349
|
|
|
'execution_error' => null |
|
350
|
|
|
), |
|
351
|
71 |
|
array('migration' => $migrationDefinition->name) |
|
352
|
|
|
); |
|
353
|
71 |
|
$conn->commit(); |
|
354
|
|
|
|
|
355
|
|
|
} else { |
|
356
|
|
|
// migration did not exist. Create it! |
|
357
|
|
|
|
|
358
|
|
|
// commit immediately, to release the lock and avoid deadlocks |
|
359
|
19 |
|
$conn->commit(); |
|
360
|
|
|
|
|
361
|
19 |
|
$migration = new APIMigration( |
|
362
|
19 |
|
$migrationDefinition->name, |
|
363
|
19 |
|
md5($migrationDefinition->rawDefinition), |
|
364
|
19 |
|
$migrationDefinition->path, |
|
365
|
19 |
|
($status == APIMigration::STATUS_SKIPPED ? null : time()), |
|
366
|
|
|
$status |
|
367
|
|
|
); |
|
368
|
19 |
|
$conn->insert($this->tableName, $this->migrationToArray($migration)); |
|
369
|
|
|
} |
|
370
|
|
|
|
|
371
|
90 |
|
return $migration; |
|
372
|
|
|
} |
|
373
|
|
|
|
|
374
|
1 |
|
public function resumeMigration(APIMigration $migration) |
|
375
|
|
|
{ |
|
376
|
1 |
|
$this->createTableIfNeeded(); |
|
377
|
|
|
|
|
378
|
|
|
// select for update |
|
379
|
|
|
|
|
380
|
|
|
// annoyingly enough, neither Doctrine nor EZP provide built in support for 'FOR UPDATE' in their query builders... |
|
381
|
|
|
// at least the doctrine one allows us to still use parameter binding when we add our sql particle |
|
382
|
1 |
|
$conn = $this->getConnection(); |
|
383
|
|
|
|
|
384
|
1 |
|
$qb = $conn->createQueryBuilder(); |
|
385
|
1 |
|
$qb->select('*') |
|
386
|
1 |
|
->from($this->tableName, 'm') |
|
387
|
1 |
|
->where('migration = ?'); |
|
388
|
1 |
|
$sql = $qb->getSQL() . ' FOR UPDATE'; |
|
389
|
|
|
|
|
390
|
1 |
|
$conn->beginTransaction(); |
|
391
|
|
|
|
|
392
|
1 |
|
$stmt = $conn->executeQuery($sql, array($migration->name)); |
|
393
|
1 |
|
$existingMigrationData = $stmt->fetch(\PDO::FETCH_ASSOC); |
|
394
|
|
|
|
|
395
|
1 |
|
if (!is_array($existingMigrationData)) { |
|
396
|
|
|
// commit immediately, to release the lock and avoid deadlocks |
|
397
|
|
|
$conn->commit(); |
|
398
|
|
|
throw new MigrationBundleException($this->getEntityName($migration)." '{$migration->name}' can not be resumed as it is not found"); |
|
399
|
|
|
} |
|
400
|
|
|
|
|
401
|
|
|
// migration exists |
|
402
|
|
|
|
|
403
|
|
|
// fail if it was not suspended |
|
404
|
1 |
|
if ($existingMigrationData['status'] != APIMigration::STATUS_SUSPENDED) { |
|
405
|
|
|
// commit to release the lock |
|
406
|
|
|
$conn->commit(); |
|
407
|
|
|
throw new MigrationBundleException($this->getEntityName($migration)." '{$migration->name}' can not be resumed as it is not suspended"); |
|
408
|
|
|
} |
|
409
|
|
|
|
|
410
|
1 |
|
$migration = new APIMigration( |
|
411
|
1 |
|
$migration->name, |
|
412
|
1 |
|
$migration->md5, |
|
413
|
1 |
|
$migration->path, |
|
414
|
1 |
|
time(), |
|
415
|
1 |
|
APIMigration::STATUS_STARTED |
|
416
|
|
|
); |
|
417
|
|
|
|
|
418
|
1 |
|
$conn->update( |
|
419
|
1 |
|
$this->tableName, |
|
420
|
|
|
array( |
|
421
|
1 |
|
'execution_date' => $migration->executionDate, |
|
422
|
1 |
|
'status' => APIMigration::STATUS_STARTED, |
|
423
|
|
|
'execution_error' => null |
|
424
|
|
|
), |
|
425
|
1 |
|
array('migration' => $migration->name) |
|
426
|
|
|
); |
|
427
|
1 |
|
$conn->commit(); |
|
428
|
|
|
|
|
429
|
1 |
|
return $migration; |
|
430
|
|
|
} |
|
431
|
|
|
|
|
432
|
|
|
/** |
|
433
|
|
|
* Removes all migration from storage (regardless of their status) |
|
434
|
|
|
*/ |
|
435
|
|
|
public function deleteMigrations() |
|
436
|
|
|
{ |
|
437
|
|
|
$this->drop(); |
|
438
|
|
|
} |
|
439
|
|
|
|
|
440
|
|
|
/** |
|
441
|
|
|
* @throws QueryException |
|
442
|
|
|
*/ |
|
443
|
1 |
|
public function createTable() |
|
444
|
|
|
{ |
|
445
|
|
|
/** @var \Doctrine\DBAL\Schema\AbstractSchemaManager $sm */ |
|
446
|
1 |
|
$sm = $this->getConnection()->getSchemaManager(); |
|
447
|
1 |
|
$dbPlatform = $sm->getDatabasePlatform(); |
|
448
|
|
|
|
|
449
|
1 |
|
$schema = new Schema(); |
|
450
|
|
|
|
|
451
|
1 |
|
$t = $schema->createTable($this->tableName); |
|
452
|
1 |
|
$t->addColumn('migration', 'string', array('length' => 255)); |
|
453
|
1 |
|
$t->addColumn('path', 'string', array('length' => 4000)); |
|
454
|
1 |
|
$t->addColumn('md5', 'string', array('length' => 32)); |
|
455
|
1 |
|
$t->addColumn('execution_date', 'integer', array('notnull' => false)); |
|
456
|
1 |
|
$t->addColumn('status', 'integer', array('default ' => APIMigration::STATUS_TODO)); |
|
457
|
1 |
|
$t->addColumn('execution_error', 'string', array('length' => 4000, 'notnull' => false)); |
|
458
|
1 |
|
$t->setPrimaryKey(array('migration')); |
|
459
|
|
|
// in case users want to look up migrations by their full path |
|
460
|
|
|
// NB: disabled for the moment, as it causes problems on some versions of mysql which limit index length to 767 bytes, |
|
461
|
|
|
// and 767 bytes can be either 255 chars or 191 chars depending on charset utf8 or utf8mb4... |
|
462
|
|
|
//$t->addIndex(array('path')); |
|
463
|
|
|
|
|
464
|
1 |
|
$this->injectTableCreationOptions($t); |
|
465
|
|
|
|
|
466
|
1 |
|
foreach ($schema->toSql($dbPlatform) as $sql) { |
|
467
|
|
|
try { |
|
468
|
1 |
|
$this->dbHandler->exec($sql); |
|
469
|
|
|
} catch (QueryException $e) { |
|
470
|
|
|
// work around limitations in both Mysql and Doctrine |
|
471
|
|
|
// @see https://github.com/kaliop-uk/ezmigrationbundle/issues/176 |
|
472
|
|
|
if (strpos($e->getMessage(), '1071 Specified key was too long; max key length is 767 bytes') !== false && |
|
473
|
|
|
strpos($sql, 'PRIMARY KEY(migration)') !== false) { |
|
474
|
|
|
$this->dbHandler->exec(str_replace('PRIMARY KEY(migration)', 'PRIMARY KEY(migration(191))', $sql)); |
|
475
|
|
|
} else { |
|
476
|
|
|
throw $e; |
|
477
|
|
|
} |
|
478
|
|
|
} |
|
479
|
|
|
} |
|
480
|
1 |
|
} |
|
481
|
|
|
|
|
482
|
103 |
|
protected function migrationToArray(APIMigration $migration) |
|
483
|
|
|
{ |
|
484
|
|
|
return array( |
|
485
|
103 |
|
'migration' => $migration->name, |
|
486
|
103 |
|
'md5' => $migration->md5, |
|
487
|
103 |
|
'path' => $migration->path, |
|
488
|
103 |
|
'execution_date' => $migration->executionDate, |
|
489
|
103 |
|
'status' => $migration->status, |
|
490
|
103 |
|
'execution_error' => $migration->executionError |
|
491
|
|
|
); |
|
492
|
|
|
} |
|
493
|
|
|
|
|
494
|
108 |
|
protected function arrayToMigration(array $data) |
|
495
|
|
|
{ |
|
496
|
108 |
|
return new APIMigration( |
|
497
|
108 |
|
$data['migration'], |
|
498
|
108 |
|
$data['md5'], |
|
499
|
108 |
|
$data['path'], |
|
500
|
108 |
|
$data['execution_date'], |
|
501
|
108 |
|
$data['status'], |
|
502
|
108 |
|
$data['execution_error'] |
|
503
|
|
|
); |
|
504
|
|
|
} |
|
505
|
|
|
|
|
506
|
|
|
protected function getEntityName($migration) |
|
507
|
|
|
{ |
|
508
|
|
|
$arr = explode('\\', get_class($migration)); |
|
509
|
|
|
return end($arr); |
|
510
|
|
|
} |
|
511
|
|
|
} |
|
512
|
|
|
|
kaliop-uk /
ezmigrationbundle
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This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.