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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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namespace Spiral\Database\Drivers\SQLite\Schemas; |
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use Spiral\Database\Entities\Driver; |
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use Spiral\Database\Schemas\Prototypes\AbstractReference; |
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use Spiral\Database\Schemas\ReferenceInterface; |
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class SQLiteReference extends AbstractReference |
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{ |
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/** |
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* In SQLite we have no predictable name. |
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* |
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* @return string |
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*/ |
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public function getName(): string |
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{ |
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return $this->tablePrefix . $this->table . '_' . $this->column . '_fk'; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function sqlStatement(Driver $driver): string |
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{ |
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$statement = []; |
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$statement[] = 'FOREIGN KEY'; |
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$statement[] = '(' . $driver->identifier($this->column) . ')'; |
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$statement[] = 'REFERENCES ' . $driver->identifier($this->foreignTable); |
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$statement[] = '(' . $driver->identifier($this->foreignKey) . ')'; |
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$statement[] = "ON DELETE {$this->deleteRule}"; |
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$statement[] = "ON UPDATE {$this->updateRule}"; |
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return implode(' ', $statement); |
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} |
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/** |
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* Name insensitive compare. |
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* |
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* @param ReferenceInterface $initial |
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* |
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* @return bool |
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*/ |
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public function compare(ReferenceInterface $initial): bool |
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{ |
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if (parent::compare($initial)) { |
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return true; |
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} |
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return $this->getColumn() == $initial->getColumn() |
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&& $this->getForeignTable() == $initial->getForeignTable() |
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&& $this->getForeignKey() == $initial->getForeignKey() |
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&& $this->getUpdateRule() == $initial->getUpdateRule() |
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&& $this->getDeleteRule() == $initial->getDeleteRule(); |
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} |
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/** |
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* @param string $table |
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* @param string $tablePrefix |
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* @param array $schema |
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* |
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* @return SQLiteReference |
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*/ |
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public static function createInstance(string $table, string $tablePrefix, array $schema): self |
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{ |
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$reference = new self($table, $tablePrefix, $schema['id']); |
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$reference->column = $schema['from']; |
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$reference->foreignTable = $schema['table']; |
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$reference->foreignKey = $schema['to']; |
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//In SQLLite we have to work with pre-defined reference names |
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$reference->name = $reference->getName(); |
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$reference->deleteRule = $schema['on_delete']; |
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$reference->updateRule = $schema['on_update']; |
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return $reference; |
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} |
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} |
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spiral /
components
