Struct sea_query::foreign_key::ForeignKeyDropStatement [−][src]
Drop a foreign key constraint for an existing table
Examples
use sea_query::{*, tests_cfg::*}; let foreign_key = ForeignKey::drop() .name("FK_character_font") .table(Char::Table) .to_owned(); assert_eq!( foreign_key.to_string(MysqlQueryBuilder), r#"ALTER TABLE `character` DROP FOREIGN KEY `FK_character_font`"# ); assert_eq!( foreign_key.to_string(PostgresQueryBuilder), r#"ALTER TABLE "character" DROP CONSTRAINT "FK_character_font""# ); // Sqlite does not support modification of foreign key constraints to existing tables
Implementations
impl ForeignKeyDropStatement
[src]
pub fn new() -> Self
[src]
Construct a new ForeignKeyDropStatement
pub fn name(self, name: &str) -> Self
[src]
Set foreign key name
pub fn table<T: 'static>(self, table: T) -> Self where
T: Iden,
[src]
T: Iden,
Set key table and referencing table
pub fn build<T: ForeignKeyBuilder>(&self, foreign_key_builder: T) -> String
[src]
Build corresponding SQL statement for certain database backend and return SQL string
pub fn build_any(&self, foreign_key_builder: &dyn ForeignKeyBuilder) -> String
[src]
Build corresponding SQL statement for certain database backend and return SQL string
pub fn to_string<T: ForeignKeyBuilder>(&self, foreign_key_builder: T) -> String
[src]
Build corresponding SQL statement for certain database backend and return SQL string
Trait Implementations
impl Clone for ForeignKeyDropStatement
[src]
fn clone(&self) -> ForeignKeyDropStatement
[src]
pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Debug for ForeignKeyDropStatement
[src]
impl Default for ForeignKeyDropStatement
[src]
Auto Trait Implementations
impl !RefUnwindSafe for ForeignKeyDropStatement
impl !Send for ForeignKeyDropStatement
impl !Sync for ForeignKeyDropStatement
impl Unpin for ForeignKeyDropStatement
impl !UnwindSafe for ForeignKeyDropStatement
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
[src]
impl<T> From<T> for T
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T> ToOwned for T where
T: Clone,
[src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
[src]
pub fn clone_into(&self, target: &mut T)
[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
[src]
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,