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*/ namespace Phinx\Db\Table; use Phinx\Db\Table; class ForeignKey { const CASCADE = 'CASCADE'; const RESTRICT = 'RESTRICT'; const SET_NULL = 'SET NULL'; const NO_ACTION = 'NO ACTION'; /** * @var array */ protected $columns = []; /** * @var \Phinx\Db\Table */ protected $referencedTable; /** * @var array */ protected $referencedColumns = []; /** * @var string */ protected $onDelete; /** * @var string */ protected $onUpdate; /** * @var string|boolean */ protected $constraint; /** * Sets the foreign key columns. * * @param array|string $columns * @return \Phinx\Db\Table\ForeignKey */ public function setColumns($columns) { $this->columns = is_string($columns) ? [$columns] : $columns; return $this; } /** * Gets the foreign key columns. * * @return array */ public function getColumns() { return $this->columns; } /** * Sets the foreign key referenced table. * * @param \Phinx\Db\Table $table * @return \Phinx\Db\Table\ForeignKey */ public function setReferencedTable(Table $table) { $this->referencedTable = $table; return $this; } /** * Gets the foreign key referenced table. * * @return \Phinx\Db\Table */ public function getReferencedTable() { return $this->referencedTable; } /** * Sets the foreign key referenced columns. * * @param array $referencedColumns * @return \Phinx\Db\Table\ForeignKey */ public function setReferencedColumns(array $referencedColumns) { $this->referencedColumns = $referencedColumns; return $this; } /** * Gets the foreign key referenced columns. * * @return array */ public function getReferencedColumns() { return $this->referencedColumns; } /** * Sets ON DELETE action for the foreign key. * * @param string $onDelete * @return \Phinx\Db\Table\ForeignKey */ public function setOnDelete($onDelete) { $this->onDelete = $this->normalizeAction($onDelete); return $this; } /** * Gets ON DELETE action for the foreign key. * * @return string */ public function getOnDelete() { return $this->onDelete; } /** * Gets ON UPDATE action for the foreign key. * * @return string */ public function getOnUpdate() { return $this->onUpdate; } /** * Sets ON UPDATE action for the foreign key. * * @param string $onUpdate * @return \Phinx\Db\Table\ForeignKey */ public function setOnUpdate($onUpdate) { $this->onUpdate = $this->normalizeAction($onUpdate); return $this; } /** * Sets constraint for the foreign key. * * @param string $constraint * @return \Phinx\Db\Table\ForeignKey */ public function setConstraint($constraint) { $this->constraint = $constraint; return $this; } /** * Gets constraint name for the foreign key. * * @return string|bool */ public function getConstraint() { return $this->constraint; } /** * Utility method that maps an array of index options to this objects methods. * * @param array $options Options * @throws \RuntimeException * @throws \InvalidArgumentException * @return \Phinx\Db\Table\ForeignKey */ public function setOptions($options) { // Valid Options $validOptions = ['delete', 'update', 'constraint']; foreach ($options as $option => $value) { if (!in_array($option, $validOptions, true)) { throw new \RuntimeException(sprintf('"%s" is not a valid foreign key option.', $option)); } // handle $options['delete'] as $options['update'] if ('delete' === $option) { $this->setOnDelete($value); } elseif ('update' === $option) { $this->setOnUpdate($value); } else { $method = 'set' . ucfirst($option); $this->$method($value); } } return $this; } /** * From passed value checks if it's correct and fixes if needed * * @param string $action * @throws \InvalidArgumentException * @return string */ protected function normalizeAction($action) { $constantName = 'static::' . str_replace(' ', '_', strtoupper(trim($action))); if (!defined($constantName)) { throw new \InvalidArgumentException('Unknown action passed: ' . $action); } return constant($constantName); } }