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<?php |
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namespace yentu; |
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use clearice\io\Io; |
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use yentu\factories\DatabaseManipulatorFactory; |
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class Migrations |
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{ |
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private $manipulatorFactory; |
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private $config; |
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private $io; |
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public function __construct(Io $io, DatabaseManipulatorFactory $manipulatorFactory, array $config) |
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{ |
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$this->manipulatorFactory = $manipulatorFactory; |
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$this->config = $config; |
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$this->io = $io; |
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} |
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public function getAllPaths() |
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{ |
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return array_merge( |
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array( |
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array( |
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'home' => $this->getPath('migrations'), |
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'variables' => $this->config['variables'] |
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) |
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), $this->config['other_migrations'] |
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); |
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} |
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/** |
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* Return an array of all migrations available. |
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* |
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* @param string $path |
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* @return array |
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*/ |
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public function getMigrationFiles($path) |
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{ |
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if (!file_exists($path)) |
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return []; |
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$migrationFiles = scandir($path, 0); |
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$migrations = array(); |
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foreach ($migrationFiles as $migration) { |
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$details = $this->getMigrationDetails($migration); |
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if ($details === false) |
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continue; |
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$migrations[$details['timestamp']] = $details; |
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unset($migrations[$details['timestamp']][0]); |
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unset($migrations[$details['timestamp']][1]); |
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unset($migrations[$details['timestamp']][2]); |
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} |
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return $migrations; |
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} |
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/** |
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* Return the details of a migration extracted from the file name. |
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* This method uses a regular expression to extract the timestamp and |
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* migration name from the migration script. |
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* |
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* @param string $migration |
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* @return array|bool |
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*/ |
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private function getMigrationDetails($migration) |
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{ |
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if (preg_match("/^(?<timestamp>[0-9]{14})\_(?<migration>[a-z][a-z0-9\_]*)\.php$/", $migration, $details)) { |
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$details['file'] = $migration; |
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} else { |
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$details = false; |
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} |
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return $details; |
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} |
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/** |
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* Returns an array of all migrations, in all configured migrations |
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* directories. |
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* @return array |
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*/ |
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public function getAllMigrations() |
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{ |
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$migrations = array(); |
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foreach ($this->getAllPaths() as $migration) { |
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$migrations = $migrations + $this->getMigrationFiles($migration['home']); |
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} |
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return $migrations; |
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} |
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/** |
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* Returns an array of all migrations that have been run on the database. |
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* The information returned includes the timestamp, the name of the migration |
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* and the default schema on which it was run. |
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* @return array |
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* @throws exceptions\DatabaseManipulatorException |
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*/ |
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public function getRunMirations() |
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{ |
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$db = $this->manipulatorFactory->createManipulator(); |
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$runMigrations = $db->query("SELECT DISTINCT version, migration, default_schema FROM yentu_history ORDER BY version"); |
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$migrations = array(); |
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foreach ($runMigrations as $migration) { |
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$migrations[$migration['version']] = array( |
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'timestamp' => $migration['version'], |
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'migration' => $migration['migration'], |
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'default_schema' => $migration['default_schema'] |
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); |
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} |
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return $migrations; |
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} |
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/** |
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* Returns a path relative to the current yentu home. |
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* @param string $path |
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* @return string |
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*/ |
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public function getPath($path) |
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{ |
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return $this->config['home'] . DIRECTORY_SEPARATOR . $path; |
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} |
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/** |
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* Announce a migration based on the command and the arguments called for |
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* the migration. |
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* |
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* @param string $command The action being performed |
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* @param string $itemType The type of item |
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* @param array $arguments The arguments of the |
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*/ |
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public function announce($command, $itemType, $arguments) |
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{ |
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$this->io->output( |
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"\n - " . ucfirst("{$command}ing ") . |
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preg_replace("/([a-z])([A-Z])/", "$1 $2", $itemType) . " " . |
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$this->getMigrationEventDescription($command, Parameters::wrap($arguments)), Io::OUTPUT_LEVEL_2 |
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); |
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$this->io->output("."); |
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} |
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/** |
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* Convert the arguments of a migration event to a string description. |
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* |
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* @param string $command |
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* @param array $arguments |
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* @return string |
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*/ |
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private function getMigrationEventDescription($command, $arguments) |
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{ |
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$dir = ''; |
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$destination = ''; |
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$arguments = Parameters::wrap($arguments, ['name' => null]); |
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if ($command == 'add') { |
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$dir = 'to'; |
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} else if ($command == 'drop') { |
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$dir = 'from'; |
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} |
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if (isset($arguments['table']) && isset($arguments['schema'])) { |
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$destination = "table " . |
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($arguments['schema'] != '' ? "{$arguments['schema']}." : '' ) . |
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"{$arguments['table']}'"; |
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} elseif (isset($arguments['schema']) && !isset($arguments['table'])) { |
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$destination = "schema '{$arguments['schema']}'"; |
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} |
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if (is_string($arguments)) { |
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return $arguments; |
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} |
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if (isset($arguments['column'])) { |
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$item = $arguments['column']; |
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} else { |
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$item = $arguments['name']; |
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} |
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return "'$item' $dir $destination"; |
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} |
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} |
ntentan /
yentu
