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<?php |
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/** |
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* components |
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* |
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* @author Wolfy-J |
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*/ |
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namespace Spiral\Database\Drivers\Postgres; |
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use Spiral\Database\Drivers\Postgres\Schemas\PostgresColumn; |
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use Spiral\Database\Entities\AbstractHandler; |
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use Spiral\Database\Exceptions\SchemaException; |
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use Spiral\Database\Schemas\Prototypes\AbstractColumn; |
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use Spiral\Database\Schemas\Prototypes\AbstractTable; |
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class PostgresHandler extends AbstractHandler |
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{ |
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/** |
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* {@inheritdoc} |
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* |
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* @throws SchemaException |
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*/ |
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public function alterColumn( |
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AbstractTable $table, |
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AbstractColumn $initial, |
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AbstractColumn $column |
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) { |
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if (!$initial instanceof PostgresColumn || !$column instanceof PostgresColumn) { |
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throw new SchemaException('Postgres handler can work only with Postgres columns'); |
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} |
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//Rename is separate operation |
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if ($column->getName() != $initial->getName()) { |
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$this->renameColumn($table, $initial, $column); |
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//This call is required to correctly built set of alter operations |
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$initial->setName($column->getName()); |
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} |
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//Postgres columns should be altered using set of operations |
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$operations = $column->alterOperations($this->driver, $initial); |
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if (empty($operations)) { |
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return $this; |
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} |
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//Postgres columns should be altered using set of operations |
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$query = \Spiral\interpolate('ALTER TABLE {table} {operations}', [ |
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'table' => $this->identify($table), |
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'operations' => trim(implode(', ', $operations), ', '), |
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]); |
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$this->run($query); |
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} |
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/** |
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* @param AbstractTable $table |
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* @param AbstractColumn $initial |
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* @param AbstractColumn $column |
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*/ |
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private function renameColumn( |
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AbstractTable $table, |
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AbstractColumn $initial, |
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AbstractColumn $column |
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) { |
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$statement = \Spiral\interpolate('ALTER TABLE {table} RENAME COLUMN {column} TO {name}', [ |
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'table' => $this->identify($table), |
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'column' => $this->identify($initial), |
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'name' => $this->identify($column) |
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]); |
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$this->run($statement); |
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} |
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} |
spiral /
components
