OnDelete enum Null safety

types of on delete actions for foreign keys

Inheritance

Constructors

OnDelete()
const

Values

cascade → const OnDelete

delete the children when the foreign key is deleted

const OnDelete(0)
restrict → const OnDelete

protect the children when the foreign key is deleted

const OnDelete(1)
setNull → const OnDelete

set the children to null when the foreign key is deleted

const OnDelete(2)
setDefault → const OnDelete

set the children to the default value when the foreign key is deleted

const OnDelete(3)

Properties

hashCode int
The hash code for this object.
read-only, inherited
index int
A numeric identifier for the enumerated value.
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited

Constants

values → const List<OnDelete>
A constant List of the values in this enum, in order of their declaration.
[cascade, restrict, setNull, setDefault]