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<?php
namespace Illuminate\Database\Schema;
use Illuminate\Support\Fluent;
/**
* @method ForeignKeyDefinition deferrable(bool $value = true) Set the foreign key as deferrable (PostgreSQL)
* @method ForeignKeyDefinition initiallyImmediate(bool $value = true) Set the default time to check the constraint (PostgreSQL)
* @method ForeignKeyDefinition on(string $table) Specify the referenced table
* @method ForeignKeyDefinition onDelete(string $action) Add an ON DELETE action
* @method ForeignKeyDefinition onUpdate(string $action) Add an ON UPDATE action
* @method ForeignKeyDefinition references(string|array $columns) Specify the referenced column(s)
*/
class ForeignKeyDefinition extends Fluent
{
/**
* Indicate that updates should cascade.
*
* @return $this
*/
public function cascadeOnUpdate()
{
return $this->onUpdate('cascade');
}
/**
* Indicate that updates should be restricted.
*
* @return $this
*/
public function restrictOnUpdate()
{
return $this->onUpdate('restrict');
}
/**
* Indicate that deletes should cascade.
*
* @return $this
*/
public function cascadeOnDelete()
{
return $this->onDelete('cascade');
}
/**
* Indicate that deletes should be restricted.
*
* @return $this
*/
public function restrictOnDelete()
{
return $this->onDelete('restrict');
}
/**
* Indicate that deletes should set the foreign key value to null.
*
* @return $this
*/
public function nullOnDelete()
{
return $this->onDelete('set null');
}
}
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