Struct sea_orm::entity::RelationBuilder

source · [−]

pub struct RelationBuilder<E, R> where
    E: EntityTrait,
    R: EntityTrait, { /* private fields */ }

Expand description

Defines a helper to build a relation

Implementations

source

impl<E, R> RelationBuilder<E, R> where
E: EntityTrait,
R: EntityTrait,

source

pub fn from<T>(self, identifier: T) -> Self where
T: IdentityOf<E>,

Build a relationship from an Entity

source

pub fn to<T>(self, identifier: T) -> Self where
T: IdentityOf<R>,

Build a relationship to an Entity

source

pub fn on_delete(self, action: ForeignKeyAction) -> Self

An operation to perform on a foreign key when a delete operation occurs

source

pub fn on_update(self, action: ForeignKeyAction) -> Self

An operation to perform on a foreign key when an update operation occurs

source

pub fn on_condition<F>(self, f: F) -> Self where
F: Fn(DynIden, DynIden) -> Condition + 'static + Send + Sync,

Set custom join ON condition.

This method takes a closure with parameters denoting the left-hand side and right-hand side table in the join expression.

source

pub fn fk_name(self, fk_name: &str) -> Self

Set the name of foreign key constraint

Trait Implementations

source

impl<E, R> Debug for RelationBuilder<E, R> where
E: EntityTrait,
R: EntityTrait,

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

source

impl<E, R> From<RelationBuilder<E, R>> for RelationDef where
E: EntityTrait,
R: EntityTrait,

source

fn from(b: RelationBuilder<E, R>) -> Self

Converts to this type from the input type.

Auto Trait Implementations

impl<E, R> !RefUnwindSafe for RelationBuilder<E, R>

impl<E, R> Send for RelationBuilder<E, R>

impl<E, R> Sync for RelationBuilder<E, R>

impl<E, R> Unpin for RelationBuilder<E, R> where
E: Unpin,
R: Unpin,

impl<E, R> !UnwindSafe for RelationBuilder<E, R>

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T> Instrument for T

source

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

source

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> Same<T> for T

type Output = T

Should always be Self

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V

source

impl<T> WithSubscriber for T

source

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

source

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Struct sea_orm::entity::RelationBuilder

Implementations

impl<E, R> RelationBuilder<E, R> where E: EntityTrait, R: EntityTrait,

pub fn from<T>(self, identifier: T) -> Self where T: IdentityOf<E>,

pub fn to<T>(self, identifier: T) -> Self where T: IdentityOf<R>,

pub fn on_delete(self, action: ForeignKeyAction) -> Self

pub fn on_update(self, action: ForeignKeyAction) -> Self

pub fn on_condition<F>(self, f: F) -> Self where F: Fn(DynIden, DynIden) -> Condition + 'static + Send + Sync,

pub fn fk_name(self, fk_name: &str) -> Self

Trait Implementations

impl<E, R> Debug for RelationBuilder<E, R> where E: EntityTrait, R: EntityTrait,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<E, R> From<RelationBuilder<E, R>> for RelationDef where E: EntityTrait, R: EntityTrait,

fn from(b: RelationBuilder<E, R>) -> Self

Auto Trait Implementations

impl<E, R> !RefUnwindSafe for RelationBuilder<E, R>

impl<E, R> Send for RelationBuilder<E, R>

impl<E, R> Sync for RelationBuilder<E, R>

impl<E, R> Unpin for RelationBuilder<E, R> where E: Unpin, R: Unpin,

impl<E, R> !UnwindSafe for RelationBuilder<E, R>

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> Same<T> for T

type Output = T

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<V, T> VZip<V> for T where V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

impl<E, R> RelationBuilder<E, R> where
E: EntityTrait,
R: EntityTrait,

pub fn from<T>(self, identifier: T) -> Self where
T: IdentityOf<E>,

pub fn to<T>(self, identifier: T) -> Self where
T: IdentityOf<R>,

pub fn on_condition<F>(self, f: F) -> Self where
F: Fn(DynIden, DynIden) -> Condition + 'static + Send + Sync,

impl<E, R> Debug for RelationBuilder<E, R> where
E: EntityTrait,
R: EntityTrait,

impl<E, R> From<RelationBuilder<E, R>> for RelationDef where
E: EntityTrait,
R: EntityTrait,

impl<E, R> Unpin for RelationBuilder<E, R> where
E: Unpin,
R: Unpin,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,