Constructor.

Parameters

string $name: The foreign key name.

string $foreignTable: The foreign (referenced) table name.

list<KeyColumn|string> $columns: A mix of key column specifiers, being KeyColumn objects, strings naming columns, or arrays of two elements, column name and length, specifying a prefix of the named column.

list<KeyColumn|string> $foreignColumns: A mix of key column specifiers of the foreign (referenced) table, being KeyColumn objects, strings naming columns, or arrays of two elements, column name and length, specifying a prefix of the named column.

Overrides KeyBase::__construct

File

core/lib/Drupal/Core/Database/SchemaDefinition/ForeignKey.php, line 38

Class

ForeignKey

Describes a database foreign key.

Namespace

Drupal\Core\Database\SchemaDefinition

Code

public function __construct(public readonly string $name, public readonly string $foreignTable, array $columns, array $foreignColumns) {
  parent::__construct($columns, FALSE);
  $this->foreignColumns = $this->buildKeyColumns($foreignColumns, FALSE);
  $this->validate();
}

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