[−][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<Rhs> Add<Rhs> for now where
Rhs: AsExpression<<<now as Expression>::SqlType as Add>::Rhs>, [src]
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<QS> AppearsOnTable<QS> for now where
now: Expression, [src]
now: Expression,
impl AsExpression<Nullable<Timestamp>> for now[src]
type Expression = Coerce<now, Nullable<Timestamp>>
The expression being returned
fn as_expression(self) -> Self::Expression[src]
impl AsExpression<Nullable<Timestamptz>> for now[src]
type Expression = Coerce<now, Nullable<Timestamptz>>
The expression being returned
fn as_expression(self) -> Self::Expression[src]
impl AsExpression<Timestamptz> for now[src]
type Expression = Coerce<now, Timestamptz>
The expression being returned
fn as_expression(self) -> Self::Expression[src]
impl Clone for now[src]
impl Copy for now[src]
impl Debug for now[src]
impl Expression for now[src]
impl NonAggregate for now[src]
impl<DB: Backend> QueryFragment<DB> for now[src]
fn walk_ast(&self, out: AstPass<DB>) -> QueryResult<()>[src]
fn to_sql(&self, out: &mut DB::QueryBuilder) -> QueryResult<()>[src]
fn collect_binds(
&self,
out: &mut DB::BindCollector,
metadata_lookup: &DB::MetadataLookup
) -> QueryResult<()>[src]
&self,
out: &mut DB::BindCollector,
metadata_lookup: &DB::MetadataLookup
) -> QueryResult<()>
fn is_safe_to_cache_prepared(&self) -> QueryResult<bool>[src]
impl QueryId for now[src]
type QueryId = now
A type which uniquely represents Self in a SQL query. Read more
const HAS_STATIC_QUERY_ID: bool[src]
fn query_id() -> Option<TypeId>[src]
impl<QS> SelectableExpression<QS> for now where
now: AppearsOnTable<QS>, [src]
now: AppearsOnTable<QS>,
impl<Rhs> Sub<Rhs> for now where
Rhs: AsExpression<<<now as Expression>::SqlType as Sub>::Rhs>, [src]
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
impl RefUnwindSafe for now
impl Send for now
impl Sync for now
impl Unpin for now
impl UnwindSafe for now
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,
fn borrow_mut(&mut self) -> &mut T[src]
impl<QS, T, DB> BoxableExpression<QS, DB> for T where
DB: Backend,
T: Expression + SelectableExpression<QS> + NonAggregate + QueryFragment<DB>, [src]
DB: Backend,
T: Expression + SelectableExpression<QS> + NonAggregate + QueryFragment<DB>,
impl<Conn, DB, T> ExecuteDsl<Conn, DB> for T where
Conn: Connection<Backend = DB>,
DB: Backend,
T: QueryFragment<DB> + QueryId, [src]
Conn: Connection<Backend = DB>,
DB: Backend,
T: QueryFragment<DB> + QueryId,
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> IntoSql for T[src]
fn into_sql<T>(self) -> AsExprOf<Self, T> where
Self: AsExpression<T> + Sized, [src]
Self: AsExpression<T> + Sized,
fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T> where
&'a Self: AsExpression<T>, [src]
&'a Self: AsExpression<T>,
impl<T> ToOwned for T where
T: Clone, [src]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T[src]
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.
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>,