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<?php declare(strict_types=1); |
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/** |
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* Query |
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* |
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* SQL Query Builder / Database Abstraction Layer |
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* |
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* PHP version 7.1 |
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* |
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* @package Query |
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* @author Timothy J. Warren <[email protected]> |
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* @copyright 2012 - 2018 Timothy J. Warren |
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* @license http://www.opensource.org/licenses/mit-license.html MIT License |
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* @link https://git.timshomepage.net/aviat4ion/Query |
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*/ |
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namespace Query\Drivers\Pgsql; |
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use Query\Drivers\AbstractDriver; |
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use Query\Drivers\DriverInterface; |
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/** |
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* PostgreSQL specific class |
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*/ |
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class Driver extends AbstractDriver implements DriverInterface { |
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/** |
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* Connect to a PosgreSQL database |
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* |
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* @codeCoverageIgnore |
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* @param string $dsn |
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* @param string $username |
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* @param string $password |
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* @param array $options |
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*/ |
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public function __construct($dsn, $username=NULL, $password=NULL, array $options=[]) |
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{ |
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if (strpos($dsn, 'pgsql') === FALSE) |
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{ |
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$dsn = 'pgsql:'.$dsn; |
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} |
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parent::__construct($dsn, $username, $password, $options); |
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} |
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// -------------------------------------------------------------------------- |
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/** |
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* Get a list of schemas for the current connection |
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* |
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* @return array |
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*/ |
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public function getSchemas(): ?array |
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{ |
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$sql = <<<SQL |
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SELECT DISTINCT "schemaname" FROM "pg_tables" |
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WHERE "schemaname" NOT LIKE 'pg\_%' |
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AND "schemaname" != 'information_schema' |
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SQL; |
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return $this->driverQuery($sql); |
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} |
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// -------------------------------------------------------------------------- |
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/** |
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* Retrieve foreign keys for the table |
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* |
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* @param string $table |
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* @return array |
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*/ |
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public function getFks($table): array |
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{ |
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$valueMap = [ |
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'c' => 'CASCADE', |
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'r' => 'RESTRICT', |
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]; |
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$keys = parent::getFks($table); |
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foreach($keys as &$key) |
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{ |
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foreach(['update', 'delete'] AS $type) |
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{ |
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if ( ! isset($valueMap[$key[$type]])) continue; |
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$key[$type] = $valueMap[$key[$type]]; |
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} |
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} |
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return $keys; |
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} |
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} |
aviat4ion /
Query
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