pub struct counter;Trait Implementations§
Source§impl<Rhs> Add<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Add>::Rhs>,
impl<Rhs> Add<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Add>::Rhs>,
Source§impl<Rhs> Div<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Div>::Rhs>,
impl<Rhs> Div<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Div>::Rhs>,
Source§impl<Rhs> Mul<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Mul>::Rhs>,
impl<Rhs> Mul<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Mul>::Rhs>,
Source§impl<DB> QueryFragment<DB> for counterwhere
DB: Backend,
StaticQueryFragmentInstance<table>: QueryFragment<DB>,
impl<DB> QueryFragment<DB> for counterwhere
DB: Backend,
StaticQueryFragmentInstance<table>: QueryFragment<DB>,
Source§impl QueryId for counter
impl QueryId for counter
Source§const HAS_STATIC_QUERY_ID: bool = true
const HAS_STATIC_QUERY_ID: bool = true
Can the SQL generated by
Self be uniquely identified by its type? Read moreSource§impl<Rhs> Sub<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Sub>::Rhs>,
impl<Rhs> Sub<Rhs> for counterwhere
Rhs: AsExpression<<<counter as Expression>::SqlType as Sub>::Rhs>,
Source§impl ValidGrouping<()> for counter
impl ValidGrouping<()> for counter
Source§type IsAggregate = No
type IsAggregate = No
Is this expression aggregate? Read more
Source§impl<__GB> ValidGrouping<__GB> for counterwhere
__GB: IsContainedInGroupBy<counter, Output = Yes>,
impl<__GB> ValidGrouping<__GB> for counterwhere
__GB: IsContainedInGroupBy<counter, Output = Yes>,
Source§type IsAggregate = Yes
type IsAggregate = Yes
Is this expression aggregate? Read more
impl<QS> AppearsOnTable<QS> for counterwhere
QS: AppearsInFromClause<table, Count = Once>,
impl Copy for counter
impl SelectableExpression<table> for counter
Auto Trait Implementations§
impl Freeze for counter
impl RefUnwindSafe for counter
impl Send for counter
impl Sync for counter
impl Unpin for counter
impl UnwindSafe for counter
Blanket Implementations§
§impl<T> AggregateExpressionMethods for T
impl<T> AggregateExpressionMethods for T
§fn aggregate_distinct(self) -> Self::Outputwhere
Self: DistinctDsl,
fn aggregate_distinct(self) -> Self::Outputwhere
Self: DistinctDsl,
DISTINCT modifier for aggregate functions Read more§fn aggregate_all(self) -> Self::Outputwhere
Self: AllDsl,
fn aggregate_all(self) -> Self::Outputwhere
Self: AllDsl,
ALL modifier for aggregate functions Read more§fn aggregate_filter<P>(self, f: P) -> Self::Outputwhere
P: AsExpression<Bool>,
Self: FilterDsl<<P as AsExpression<Bool>>::Expression>,
fn aggregate_filter<P>(self, f: P) -> Self::Outputwhere
P: AsExpression<Bool>,
Self: FilterDsl<<P as AsExpression<Bool>>::Expression>,
Add an aggregate function filter Read more
§fn aggregate_order<O>(self, o: O) -> Self::Outputwhere
Self: OrderAggregateDsl<O>,
fn aggregate_order<O>(self, o: O) -> Self::Outputwhere
Self: OrderAggregateDsl<O>,
Add an aggregate function order Read more
§impl<T, ST> AsExpression<ST> for Twhere
T: Expression<SqlType = ST>,
ST: SqlType + TypedExpressionType,
impl<T, ST> AsExpression<ST> for Twhere
T: Expression<SqlType = ST>,
ST: SqlType + TypedExpressionType,
§type Expression = T
type Expression = T
The expression being returned
§fn as_expression(self) -> T
fn as_expression(self) -> T
Perform the conversion
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> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
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.§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Converts
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downcast into Rc<ConcreteType> where ConcreteType implements Trait.§fn as_any(&self) -> &(dyn Any + 'static)
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.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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.§impl<T> DowncastSend for T
impl<T> DowncastSend for T
§impl<T> DowncastSync for T
impl<T> DowncastSync for T
§impl<Conn, DB, T> ExecuteDsl<Conn, DB> for Twhere
Conn: Connection<Backend = DB>,
DB: Backend,
T: QueryFragment<DB> + QueryId,
impl<Conn, DB, T> ExecuteDsl<Conn, DB> for Twhere
Conn: Connection<Backend = DB>,
DB: Backend,
T: QueryFragment<DB> + QueryId,
§impl<T> ExpressionMethods for Twhere
T: Expression,
<T as Expression>::SqlType: SingleValue,
impl<T> ExpressionMethods for Twhere
T: Expression,
<T as Expression>::SqlType: SingleValue,
§fn eq<T>(
self,
other: T,
) -> Grouped<Eq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
fn eq<T>(
self,
other: T,
) -> Grouped<Eq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
Creates a SQL
= expression. Read more§fn ne<T>(
self,
other: T,
) -> Grouped<NotEq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
fn ne<T>(
self,
other: T,
) -> Grouped<NotEq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
Creates a SQL
!= expression. Read more§fn eq_any<T>(
self,
values: T,
) -> Grouped<In<Self, <T as AsInExpression<Self::SqlType>>::InExpression>>where
Self::SqlType: SqlType,
T: AsInExpression<Self::SqlType>,
fn eq_any<T>(
self,
values: T,
) -> Grouped<In<Self, <T as AsInExpression<Self::SqlType>>::InExpression>>where
Self::SqlType: SqlType,
T: AsInExpression<Self::SqlType>,
Creates a SQL
IN statement. Read more§fn ne_all<T>(
self,
values: T,
) -> Grouped<NotIn<Self, <T as AsInExpression<Self::SqlType>>::InExpression>>where
Self::SqlType: SqlType,
T: AsInExpression<Self::SqlType>,
fn ne_all<T>(
self,
values: T,
) -> Grouped<NotIn<Self, <T as AsInExpression<Self::SqlType>>::InExpression>>where
Self::SqlType: SqlType,
T: AsInExpression<Self::SqlType>,
Creates a SQL
NOT IN statement. Read more§fn is_not_null(self) -> Grouped<IsNotNull<Self>>
fn is_not_null(self) -> Grouped<IsNotNull<Self>>
Creates a SQL
IS NOT NULL expression. Read more§fn gt<T>(
self,
other: T,
) -> Grouped<Gt<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
fn gt<T>(
self,
other: T,
) -> Grouped<Gt<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
Creates a SQL
> expression. Read more§fn ge<T>(
self,
other: T,
) -> Grouped<GtEq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
fn ge<T>(
self,
other: T,
) -> Grouped<GtEq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
Creates a SQL
>= expression. Read more§fn lt<T>(
self,
other: T,
) -> Grouped<Lt<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
fn lt<T>(
self,
other: T,
) -> Grouped<Lt<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
Creates a SQL
< expression. Read more§fn le<T>(
self,
other: T,
) -> Grouped<LtEq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
fn le<T>(
self,
other: T,
) -> Grouped<LtEq<Self, <T as AsExpression<Self::SqlType>>::Expression>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
Creates a SQL
<= expression. Read more§fn between<T, U>(
self,
lower: T,
upper: U,
) -> Grouped<Between<Self, And<<T as AsExpression<Self::SqlType>>::Expression, <U as AsExpression<Self::SqlType>>::Expression>>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
U: AsExpression<Self::SqlType>,
fn between<T, U>(
self,
lower: T,
upper: U,
) -> Grouped<Between<Self, And<<T as AsExpression<Self::SqlType>>::Expression, <U as AsExpression<Self::SqlType>>::Expression>>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
U: AsExpression<Self::SqlType>,
Creates a SQL
BETWEEN expression using the given lower and upper
bounds. Read more§fn not_between<T, U>(
self,
lower: T,
upper: U,
) -> Grouped<NotBetween<Self, And<<T as AsExpression<Self::SqlType>>::Expression, <U as AsExpression<Self::SqlType>>::Expression>>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
U: AsExpression<Self::SqlType>,
fn not_between<T, U>(
self,
lower: T,
upper: U,
) -> Grouped<NotBetween<Self, And<<T as AsExpression<Self::SqlType>>::Expression, <U as AsExpression<Self::SqlType>>::Expression>>>where
Self::SqlType: SqlType,
T: AsExpression<Self::SqlType>,
U: AsExpression<Self::SqlType>,
Creates a SQL
NOT BETWEEN expression using the given lower and upper
bounds. Read more§fn cast<ST>(self) -> Cast<Self, ST>where
ST: SingleValue,
Self::SqlType: CastsTo<ST>,
fn cast<ST>(self) -> Cast<Self, ST>where
ST: SingleValue,
Self::SqlType: CastsTo<ST>,
Generates a
CAST(expr AS sql_type) expression Read more§fn fallible_cast<ST>(self) -> Cast<Self, ST>where
ST: SingleValue,
Self::SqlType: FallibleCastsTo<ST>,
fn fallible_cast<ST>(self) -> Cast<Self, ST>where
ST: SingleValue,
Self::SqlType: FallibleCastsTo<ST>,
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more§impl<T> IntoSql for T
impl<T> IntoSql for T
§impl<T> NoneValue for Twhere
T: Default,
impl<T> NoneValue for Twhere
T: Default,
type NoneType = T
§fn null_value() -> T
fn null_value() -> T
The none-equivalent value.
§impl<T> NullableExpressionMethods for Twhere
T: Expression,
impl<T> NullableExpressionMethods for Twhere
T: Expression,
§fn nullable(self) -> Nullable<Self>
fn nullable(self) -> Nullable<Self>
Converts this potentially non-null expression into one which is treated
as nullable. This method has no impact on the generated SQL, and is only
used to allow certain comparisons that would otherwise fail to compile. Read more
§fn assume_not_null(self) -> AssumeNotNull<Self>
fn assume_not_null(self) -> AssumeNotNull<Self>
Converts this potentially nullable expression into one which will be assumed
to be not-null. This method has no impact on the generated SQL, however it will
enable you to attempt deserialization of the returned value in a non-
Option. Read more§impl<T> PolicyExt for Twhere
T: ?Sized,
impl<T> PolicyExt for Twhere
T: ?Sized,
§impl<T> SqliteExpressionMethods for Twhere
T: Expression,
impl<T> SqliteExpressionMethods for Twhere
T: Expression,
§impl<T> WindowExpressionMethods for T
impl<T> WindowExpressionMethods for T
§fn over(self) -> Self::Outputwhere
Self: OverDsl,
fn over(self) -> Self::Outputwhere
Self: OverDsl,
Turn a function call into a window function call Read more
§fn window_filter<P>(self, f: P) -> Self::Outputwhere
P: AsExpression<Bool>,
Self: FilterDsl<<P as AsExpression<Bool>>::Expression>,
fn window_filter<P>(self, f: P) -> Self::Outputwhere
P: AsExpression<Bool>,
Self: FilterDsl<<P as AsExpression<Bool>>::Expression>,
Add a filter to the current window function Read more
§fn partition_by<E>(self, expr: E) -> Self::Outputwhere
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fn partition_by<E>(self, expr: E) -> Self::Outputwhere
Self: PartitionByDsl<E>,
Add a partition clause to the current window function Read more
§fn window_order<E>(self, expr: E) -> Self::Outputwhere
Self: OrderWindowDsl<E>,
fn window_order<E>(self, expr: E) -> Self::Outputwhere
Self: OrderWindowDsl<E>,
Add a order clause to the current window function Read more