pub struct Bool;
Expand description
The boolean SQL type.
On backends without a native boolean type, this is emulated with the smallest supported integer.
ToSql
impls
FromSql
impls
Trait Implementations
sourceimpl<'expr> AsExpression<Bool> for &'expr bool
impl<'expr> AsExpression<Bool> for &'expr bool
type Expression = Bound<Bool, &'expr bool>
type Expression = Bound<Bool, &'expr bool>
The expression being returned
sourcefn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
sourceimpl<'expr2, 'expr> AsExpression<Bool> for &'expr2 &'expr bool
impl<'expr2, 'expr> AsExpression<Bool> for &'expr2 &'expr bool
type Expression = Bound<Bool, &'expr2 &'expr bool>
type Expression = Bound<Bool, &'expr2 &'expr bool>
The expression being returned
sourcefn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
sourceimpl AsExpression<Bool> for bool
impl AsExpression<Bool> for bool
type Expression = Bound<Bool, bool>
type Expression = Bound<Bool, bool>
The expression being returned
sourcefn as_expression(self) -> Self::Expression
fn as_expression(self) -> Self::Expression
Perform the conversion
sourceimpl FromSql<Bool, Mysql> for bool
Available on crate feature mysql_backend
only.
impl FromSql<Bool, Mysql> for bool
Available on crate feature
mysql_backend
only.sourcefn from_sql(bytes: MysqlValue<'_>) -> Result<Self>
fn from_sql(bytes: MysqlValue<'_>) -> Result<Self>
See the trait documentation.
sourceimpl FromSql<Bool, Sqlite> for bool
Available on crate feature sqlite
only.
impl FromSql<Bool, Sqlite> for bool
Available on crate feature
sqlite
only.sourcefn from_sql(value: SqliteValue<'_, '_, '_>) -> Result<Self>
fn from_sql(value: SqliteValue<'_, '_, '_>) -> Result<Self>
See the trait documentation.
sourceimpl HasSqlType<Bool> for Mysql
impl HasSqlType<Bool> for Mysql
sourceimpl HasSqlType<Bool> for Pg
impl HasSqlType<Bool> for Pg
sourcefn metadata(_: &mut Self::MetadataLookup) -> PgTypeMetadata
fn metadata(_: &mut Self::MetadataLookup) -> PgTypeMetadata
Fetch the metadata for the given type Read more
sourceimpl HasSqlType<Bool> for Sqlite
impl HasSqlType<Bool> for Sqlite
sourcefn metadata(_: &mut ()) -> SqliteType
fn metadata(_: &mut ()) -> SqliteType
Fetch the metadata for the given type Read more
sourceimpl QueryId for Bool
impl QueryId for Bool
sourceconst 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 moreimpl BoolOrNullableBool for Bool
impl Copy for Bool
impl SingleValue for Bool
Auto Trait Implementations
impl RefUnwindSafe for Bool
impl Send for Bool
impl Sync for Bool
impl Unpin for Bool
impl UnwindSafe for Bool
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> IntoNotNullable for Twhere
T: SqlType<IsNull = NotNull>,
impl<T> IntoNotNullable for Twhere
T: SqlType<IsNull = NotNull>,
type NotNullable = T
type NotNullable = T
The not nullable representation of this type. Read more
sourceimpl<T> IntoNullable for Twhere
T: SqlType<IsNull = NotNull> + SingleValue,
impl<T> IntoNullable for Twhere
T: SqlType<IsNull = NotNull> + SingleValue,
sourceimpl<T> IntoSql for T
impl<T> IntoSql for T
sourcefn into_sql<T>(self) -> AsExprOf<Self, T>where
Self: AsExpression<T> + Sized,
T: SqlType + TypedExpressionType,
fn into_sql<T>(self) -> AsExprOf<Self, T>where
Self: AsExpression<T> + Sized,
T: SqlType + TypedExpressionType,
Convert
self
to an expression for Diesel’s query builder. Read moresourcefn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T>where
&'a Self: AsExpression<T>,
T: SqlType + TypedExpressionType,
fn as_sql<'a, T>(&'a self) -> AsExprOf<&'a Self, T>where
&'a Self: AsExpression<T>,
T: SqlType + TypedExpressionType,
Convert
&self
to an expression for Diesel’s query builder. Read more