pub enum OnDelete {
Cascade,
Protect,
SetNull,
SetDefault,
DoNothing,
}Expand description
Deletion policy (serde mirror of siderite_orm::OnDelete).
Variants§
Cascade
Delete referencing rows too.
Protect
Refuse the delete while references exist (RESTRICT in DDL).
SetNull
Set the reference to NULL.
SetDefault
Set the reference to the column default.
DoNothing
Leave referencing rows untouched (NO ACTION in DDL).
Trait Implementations§
impl Copy for OnDelete
Source§impl<'de> Deserialize<'de> for OnDelete
impl<'de> Deserialize<'de> for OnDelete
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl Eq for OnDelete
Source§impl From<OnDelete> for OnDelete
impl From<OnDelete> for OnDelete
Source§fn from(value: OrmOnDelete) -> Self
fn from(value: OrmOnDelete) -> Self
Converts to this type from the input type.
impl StructuralPartialEq for OnDelete
Auto Trait Implementations§
impl Freeze for OnDelete
impl RefUnwindSafe for OnDelete
impl Send for OnDelete
impl Sync for OnDelete
impl Unpin for OnDelete
impl UnsafeUnpin for OnDelete
impl UnwindSafe for OnDelete
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> DeserializeOwned for Twhere
T: for<'de> Deserialize<'de>,
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Checks if this value is equivalent to the given key. Read more
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.