ForeignKeyAction enum

Describes how to react if the row a foreign key refers to changes / is deleted.

Inheritance

• Object
• Enum
• ForeignKeyAction

Implemented types

• SerializableModel

Available extensions

• EnumName

Values

setNull → const ForeignKeyAction

setNull specifies that the appropriate values of a row referencing an other one should be set to null on update or deletion.

setDefault → const ForeignKeyAction

setNull specifies that the appropriate values of a row referencing an other one should be set to the default value on update or deletion.

restrict → const ForeignKeyAction

Prevent the change from occurring.

noAction → const ForeignKeyAction

Same as restrict, but allows the check to be deferred until later in the transaction.

noAction is the default

cascade → const ForeignKeyAction

cascade specifies that deletion or updating of a referred row, should be propagated down.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

index → int

A numeric identifier for the enumerated value.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → int

Returns a serialized JSON structure of the model which also includes fields used by the database.

override

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

fromJson(int index) → ForeignKeyAction

Constants

values → const List<ForeignKeyAction>

A constant List of the values in this enum, in order of their declaration.