QueryOrderDirection

Enum QueryOrderDirection 

Source
pub enum QueryOrderDirection {
    Ascending,
    Descending,
}
Expand description

The direction of the query ordering.

Implements Display

assert_eq!(&QueryOrderDirection::Ascending.to_string(), "ASC");
assert_eq!(&QueryOrderDirection::Descending.to_string(), "DESC");

Variants§

§

Ascending

§

Descending

Implementations§

Source§

impl QueryOrderDirection

Source

pub fn order_query<Expr, Q>( &self, query: Q, expr: Expr, ) -> OrderWithDirection<Q, Expr>
where Expr: ExpressionMethods, Q: OrderDsl<Asc<Expr>> + OrderDsl<Desc<Expr>, Output = <Q as OrderDsl<Asc<Expr>>>::Output>,

Append a QueryDsl::order to the query. Same as query.order_with_dir(self, expr)

Source

pub fn order_multiple<Expr, Q>( &self, query: Q, expr: Expr, ) -> OrderMultipleWithDirection<Q, Expr>
where Expr: OrderableTuple, Q: OrderDsl<<Expr as OrderableTuple>::AscOutput> + OrderDsl<<Expr as OrderableTuple>::DescOutput, Output = <Q as OrderDsl<<Expr as OrderableTuple>::AscOutput>>::Output>,

Source

pub fn then_order_by_query<Expr, Q>( &self, query: Q, expr: Expr, ) -> ThenOrderByWithDirection<Q, Expr>
where Expr: ExpressionMethods, Q: ThenOrderDsl<Asc<Expr>> + ThenOrderDsl<Desc<Expr>, Output = <Q as ThenOrderDsl<Asc<Expr>>>::Output>,

Trait Implementations§

Source§

impl Clone for QueryOrderDirection

Source§

fn clone(&self) -> QueryOrderDirection

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
Source§

impl Debug for QueryOrderDirection

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Default for QueryOrderDirection

Source§

fn default() -> Self

Returns the “default value” for a type. Read more
Source§

impl Display for QueryOrderDirection

Source§

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

Formats the value using the given formatter. Read more
Source§

impl Hash for QueryOrderDirection

Source§

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
Source§

impl Ord for QueryOrderDirection

Source§

fn cmp(&self, other: &QueryOrderDirection) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · Source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · Source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · Source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
Source§

impl PartialEq for QueryOrderDirection

Source§

fn eq(&self, other: &QueryOrderDirection) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl PartialOrd for QueryOrderDirection

Source§

fn partial_cmp(&self, other: &QueryOrderDirection) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · Source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · Source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · Source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · Source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Source§

impl Copy for QueryOrderDirection

Source§

impl Eq for QueryOrderDirection

Source§

impl StructuralPartialEq for QueryOrderDirection

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> AggregateExpressionMethods for T

Source§

fn aggregate_distinct(self) -> Self::Output
where Self: DistinctDsl,

DISTINCT modifier for aggregate functions Read more
Source§

fn aggregate_all(self) -> Self::Output
where Self: AllDsl,

ALL modifier for aggregate functions Read more
Source§

fn aggregate_filter<P>(self, f: P) -> Self::Output
where P: AsExpression<Bool>, Self: FilterDsl<<P as AsExpression<Bool>>::Expression>,

Add an aggregate function filter Read more
Source§

fn aggregate_order<O>(self, o: O) -> Self::Output
where Self: OrderAggregateDsl<O>,

Add an aggregate function order Read more
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,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
Source§

impl<T> Downcast for T
where T: Any,

Source§

fn into_any(self: Box<T>) -> Box<dyn Any>

Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.
Source§

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Converts Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
Source§

fn as_any(&self) -> &(dyn Any + 'static)

Converts &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
Source§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Converts &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
Source§

impl<T> DowncastSend for T
where T: Any + Send,

Source§

fn into_any_send(self: Box<T>) -> Box<dyn Any + Send>

Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
Source§

impl<T> DowncastSync for T
where T: Any + Send + Sync,

Source§

fn into_any_sync(self: Box<T>) -> Box<dyn Any + Sync + Send>

Converts Box<Trait> (where Trait: DowncastSync) to Box<dyn Any + Send + Sync>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
Source§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send>

Converts Arc<Trait> (where Trait: DowncastSync) to Arc<Any>, which can then be downcast into Arc<ConcreteType> where ConcreteType implements Trait.
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

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

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> IntoSql for T

Source§

fn into_sql<T>(self) -> Self::Expression

Convert self to an expression for Diesel’s query builder. Read more
Source§

fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression
where &'a Self: AsExpression<T>, T: SqlType + TypedExpressionType,

Convert &self to an expression for Diesel’s query builder. Read more
Source§

impl<Q> OrderWithDirectionDsl for Q

Source§

fn order_with_dir<Expr>( self, direction: QueryOrderDirection, expr: Expr, ) -> OrderWithDirection<Self, Expr>
where Expr: ExpressionMethods, Self: OrderDsl<Asc<Expr>> + OrderDsl<Desc<Expr>, Output = <Self as OrderDsl<Asc<Expr>>>::Output>,

Wrapper around QueryDsl::order with an extra QueryOrderDirection argument to dynamically determine the ordering direction. Only works with boxed queries.
Source§

fn order_by_with_dir<Expr>( self, order: QueryOrderDirection, expr: Expr, ) -> OrderWithDirection<Self, Expr>
where Expr: ExpressionMethods, Self: OrderDsl<Asc<Expr>> + OrderDsl<Desc<Expr>, Output = <Self as OrderDsl<Asc<Expr>>>::Output>,

Alias for DynamicQueryOrderDsl::order_with_dir
Source§

fn order_multiple_with_dir<Expr>( self, direction: QueryOrderDirection, expr: Expr, ) -> OrderMultipleWithDirection<Self, Expr>
where Expr: OrderableTuple, Self: OrderDsl<<Expr as OrderableTuple>::AscOutput> + OrderDsl<<Expr as OrderableTuple>::DescOutput, Output = <Self as OrderDsl<<Expr as OrderableTuple>::AscOutput>>::Output>,

Wrapper around QueryDsl::order when its expr is a tuple. The direction argument determines the ordering direction of all fields in the tuple Read more
Source§

fn then_order_by_with_dir<Expr>( self, direction: QueryOrderDirection, expr: Expr, ) -> ThenOrderByWithDirection<Self, Expr>
where Expr: ExpressionMethods, Self: ThenOrderDsl<Asc<Expr>> + ThenOrderDsl<Desc<Expr>, Output = <Self as ThenOrderDsl<Asc<Expr>>>::Output>,

Wrapper around QueryDsl::then_order_by with an extra QueryOrderDirection argument to dynamically determine the ordering direction. Only works with boxed queries.
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T> ToString for T
where T: Display + ?Sized,

Source§

fn to_string(&self) -> String

Converts the given value to a String. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

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

Source§

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

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.
Source§

impl<T> WindowExpressionMethods for T

Source§

fn over(self) -> Self::Output
where Self: OverDsl,

Turn a function call into a window function call Read more
Source§

fn window_filter<P>(self, f: P) -> Self::Output
where P: AsExpression<Bool>, Self: FilterDsl<<P as AsExpression<Bool>>::Expression>,

Add a filter to the current window function Read more
Source§

fn partition_by<E>(self, expr: E) -> Self::Output
where Self: PartitionByDsl<E>,

Add a partition clause to the current window function Read more
Source§

fn window_order<E>(self, expr: E) -> Self::Output
where Self: OrderWindowDsl<E>,

Add a order clause to the current window function Read more
Source§

fn frame_by<E>(self, expr: E) -> Self::Output
where Self: FrameDsl<E>,

Add a frame clause to the current window function Read more