[−][src]Struct diesel::dsl::now
Represents the SQL CURRENT_TIMESTAMP
constant. This is equivalent to the
NOW()
function on backends that support it.
Trait Implementations
impl Expression for now
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impl Expression for now
impl AsExpression<Nullable<Timestamp>> for now
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impl AsExpression<Nullable<Timestamp>> for now
type Expression = Coerce<now, Nullable<Timestamp>>
The expression being returned
fn as_expression(self) -> Self::Expression | [src] |
impl AsExpression<Timestamptz> for now
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impl AsExpression<Timestamptz> for now
type Expression = Coerce<now, Timestamptz>
The expression being returned
fn as_expression(self) -> Self::Expression | [src] |
impl AsExpression<Nullable<Timestamptz>> for now
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impl AsExpression<Nullable<Timestamptz>> for now
type Expression = Coerce<now, Nullable<Timestamptz>>
The expression being returned
fn as_expression(self) -> Self::Expression | [src] |
impl<QS> AppearsOnTable<QS> for now where
now: Expression,
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impl<QS> AppearsOnTable<QS> for now where
now: Expression,
impl<QS> SelectableExpression<QS> for now where
now: AppearsOnTable<QS>,
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impl<QS> SelectableExpression<QS> for now where
now: AppearsOnTable<QS>,
impl NonAggregate for now
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impl NonAggregate for now
impl QueryId for now
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impl QueryId for now
type QueryId = now
A type which uniquely represents Self
in a SQL query. Read more
const HAS_STATIC_QUERY_ID: bool
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fn query_id() -> Option<TypeId> | [src] |
Returns the type id of Self::QueryId
if Self::HAS_STATIC_QUERY_ID
. Returns None
otherwise. Read more
impl<DB: Backend> QueryFragment<DB> for now
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impl<DB: Backend> QueryFragment<DB> for now
fn walk_ast(&self, out: AstPass<DB>) -> QueryResult<()> | [src] |
fn to_sql(&self, out: &mut DB::QueryBuilder) -> QueryResult<()> | [src] |
Converts this QueryFragment
to its SQL representation. Read more
fn collect_binds( | [src] |
Serializes all bind parameters in this query. Read more
fn is_safe_to_cache_prepared(&self) -> QueryResult<bool> | [src] |
Is this query safe to store in the prepared statement cache? Read more
impl Copy for now
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impl Copy for now
impl Clone for now
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impl Clone for now
fn clone(&self) -> now | [src] |
fn clone_from(&mut self, source: &Self) | 1.0.0 [src] |
Performs copy-assignment from source
. Read more
impl Debug for now
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impl Debug for now
impl<Rhs> Add<Rhs> for now where
Rhs: AsExpression<<<now as Expression>::SqlType as Add>::Rhs>,
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impl<Rhs> Add<Rhs> for now where
Rhs: AsExpression<<<now as Expression>::SqlType as Add>::Rhs>,
type Output = Add<Self, Rhs::Expression>
The resulting type after applying the +
operator.
fn add(self, rhs: Rhs) -> Self::Output | [src] |
impl<Rhs> Sub<Rhs> for now where
Rhs: AsExpression<<<now as Expression>::SqlType as Sub>::Rhs>,
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impl<Rhs> Sub<Rhs> for now where
Rhs: AsExpression<<<now as Expression>::SqlType as Sub>::Rhs>,
type Output = Sub<Self, Rhs::Expression>
The resulting type after applying the -
operator.
fn sub(self, rhs: Rhs) -> Self::Output | [src] |
Auto Trait Implementations
Blanket Implementations
impl<T> IntoSql for T
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impl<T> IntoSql for T
fn into_sql<T>(self) -> AsExprOf<Self, T> where | [src] |
Convert self
to an expression for Diesel's query builder. Read more
fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T> where | [src] |
Convert &self
to an expression for Diesel's query builder. Read more
impl<QS, T, DB> BoxableExpression for T where
DB: Backend,
T: Expression + SelectableExpression<QS> + NonAggregate + QueryFragment<DB>,
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impl<QS, T, DB> BoxableExpression for T where
DB: Backend,
T: Expression + SelectableExpression<QS> + NonAggregate + QueryFragment<DB>,
impl<Conn, DB, T> ExecuteDsl for T where
Conn: Connection<Backend = DB>,
DB: Backend,
T: QueryFragment<DB> + QueryId,
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impl<Conn, DB, T> ExecuteDsl for T where
Conn: Connection<Backend = DB>,
DB: Backend,
T: QueryFragment<DB> + QueryId,
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error> | [src] |
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T | [src] |
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error> | [src] |
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId | [src] |