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<?php |
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namespace App\Component\Migration\Metro; |
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use App\Component\Model\Orm\Orm; |
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use App\Component\Db\Migration; |
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use App\Model\Repository\Metro\Stations as StationsRepository; |
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use Nymfonya\Component\Container; |
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use SplFileObject; |
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class Stations extends Migration |
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{ |
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const MIG_FIELDS = [ |
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'id', 'lon', 'lat', 'name', 'h' |
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]; |
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const CSV_FIXTURE = '/../../../../../assets/model/metro/stations.csv'; |
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const MEM_LIM = 'memory_limit'; |
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/** |
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* repository |
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* |
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* @var Orm |
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*/ |
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protected $repository; |
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/** |
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* instanciate |
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* |
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* @param Container $container |
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*/ |
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public function __construct(Container $container) |
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{ |
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parent::__construct($container); |
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$this->repository = new StationsRepository($container); |
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$this->fromOrm($this->repository); |
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} |
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/** |
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* check if migration can run |
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* |
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* @return boolean |
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*/ |
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protected function canMigrate(): bool |
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{ |
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return (!$this->tableExists()); |
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} |
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/** |
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* create table |
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* |
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* @return Migration |
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*/ |
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protected function runCreate(): Migration |
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{ |
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if (!$this->tableExists()) { |
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$sql = sprintf( |
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'CREATE TABLE `%s` ( |
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`id` bigint(20) NOT NULL, |
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`lon` double NOT NULL, |
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`lat` double NOT NULL, |
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`name` varchar(150) NOT NULL, |
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`h` varchar(16) NOT NULL |
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) ENGINE=InnoDB DEFAULT CHARSET=utf8', |
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$this->repository->getTable() |
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); |
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$this->run($sql); |
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} |
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return $this; |
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} |
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/** |
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* insert into table |
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* |
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* @return Migration |
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*/ |
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protected function runInsert(): Migration |
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{ |
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$ml = ini_get(self::MEM_LIM); |
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ini_set(self::MEM_LIM, '8M'); |
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if ($this->tableExists()) { |
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$stream = new SplFileObject( |
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__DIR__ . self::CSV_FIXTURE |
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); |
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$stream->setFlags( |
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SplFileObject::READ_CSV | |
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SplFileObject::SKIP_EMPTY | |
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SplFileObject::READ_AHEAD | |
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SplFileObject::DROP_NEW_LINE |
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); |
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while (false === $stream->eof()) { |
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$csvData = $stream->fgetcsv(); |
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if (!empty($csvData)) { |
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$data = array_combine(self::MIG_FIELDS, $csvData); |
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$this->repository->resetBuilder(); |
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$this->repository->insert($data); |
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$this->run( |
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$this->repository->getSql(), |
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$this->repository->getBuilderValues() |
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); |
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} |
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unset($csvData); |
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} |
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$stream = null; |
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unset($stream, $lines); |
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} |
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ini_set(self::MEM_LIM, $ml); |
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return $this; |
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} |
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/** |
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* index table |
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* |
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* @return Migration |
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*/ |
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protected function runIndex(): Migration |
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{ |
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$pkey = $this->repository->getPrimary(); |
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$sqlIndex = sprintf( |
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'ALTER TABLE `%s`' |
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. 'ADD PRIMARY KEY (`%s`),' |
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. 'ADD KEY `%s` (`%s`),' |
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. 'ADD KEY `name` (`name`),' |
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. 'ADD KEY `h` (`h`)', |
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$this->repository->getTable(), |
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$pkey, |
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$pkey, |
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$pkey |
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); |
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$this->run($sqlIndex); |
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$sqlAutoinc = sprintf('ALTER TABLE `%s`' |
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. 'MODIFY `id` bigint(20) NOT NULL AUTO_INCREMENT, ' |
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. 'AUTO_INCREMENT=1', $this->repository->getTable()); |
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$this->run($sqlAutoinc); |
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return $this; |
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} |
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/** |
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* return true if table exists |
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* |
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* @return boolean |
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*/ |
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protected function tableExists(): bool |
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{ |
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$sqlWhere = " WHERE table_schema = '%s' AND table_name = '%s';"; |
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$sql = sprintf( |
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"SELECT count(*) as counter FROM %s " . $sqlWhere, |
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'information_schema.tables', |
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$this->repository->getDatabase(), |
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$this->repository->getTable() |
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); |
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$this->run($sql)->hydrate(); |
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$result = $this->getRowset()[0]; |
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$counter = (int) $result['counter']; |
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return ($counter > 0); |
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} |
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/** |
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* drop table if exists |
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* |
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* @return boolean |
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*/ |
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protected function dropTable(): bool |
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{ |
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if (!$this->tableExists()) { |
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return false; |
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} |
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$sql = 'DROP TABLE ' . $this->repository->getTable() . ';'; |
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$this->run($sql); |
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return true; |
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} |
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} |
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pierre-fromager /
nymfonya
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