diesel::sql_types

Struct Binary

pub struct Binary;

Expand description

The binary SQL type.

Schema inference will treat all variants of BLOB as this type (e.g. VARBINARY, MEDIUMBLOB, etc).

§`ToSql` impls

§`FromSql` impls

Vec<u8>

Trait Implementations§

impl<'expr, 'expr2> AsExpression<Binary> for &'expr2 &'expr [u8]

type Expression = Bound<Binary, &'expr2 &'expr [u8]>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'expr, 'expr2, const N: usize> AsExpression<Binary> for &'expr2 &'expr [u8; N]

type Expression = Bound<Binary, &'expr2 &'expr [u8; N]>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'expr, 'expr2> AsExpression<Binary> for &'expr2 &'expr Vec<u8>

type Expression = Bound<Binary, &'expr2 &'expr Vec<u8>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'expr> AsExpression<Binary> for &'expr [u8]

type Expression = Bound<Binary, &'__expr [u8]>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'expr, const N: usize> AsExpression<Binary> for &'expr [u8; N]

type Expression = Bound<Binary, &'__expr [u8; N]>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<'expr> AsExpression<Binary> for &'expr Vec<u8>

type Expression = Bound<Binary, &'__expr Vec<u8>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl<const N: usize> AsExpression<Binary> for [u8; N]

type Expression = Bound<Binary, [u8; N]>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl AsExpression<Binary> for Vec<u8>

type Expression = Bound<Binary, Vec<u8>>

The expression being returned

fn as_expression(self) -> Self::Expression

Perform the conversion

impl Clone for Binary

fn clone(&self) -> Binary

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for Binary

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

Formats the value using the given formatter. Read more

impl Default for Binary

fn default() -> Binary

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

impl FromSql<Binary, Pg> for *const [u8]

The returned pointer is only valid for the lifetime to the argument of from_sql. This impl is intended for uses where you want to write a new impl in terms of Vec<u8>, but don’t want to allocate. We have to return a raw pointer instead of a reference with a lifetime due to the structure of FromSql

fn from_sql(value: PgValue<'_>) -> Result<Self>

See the trait documentation.

fn from_nullable_sql(bytes: Option<DB::RawValue<'_>>) -> Result<Self>

A specialized variant of from_sql for handling null values. Read more

impl HasSqlType<Binary> for Pg

fn metadata(_: &mut Self::MetadataLookup) -> PgTypeMetadata

Fetch the metadata for the given type Read more

impl QueryId for Binary

const HAS_STATIC_QUERY_ID: bool = true

Can the SQL generated by Self be uniquely identified by its type? Read more

type QueryId = Binary

A type which uniquely represents Self in a SQL query. Read more

fn query_id() -> Option<TypeId>

Returns the type id of Self::QueryId if Self::HAS_STATIC_QUERY_ID. Returns None otherwise. Read more

impl Queryable<Binary, Pg> for *const [u8]

type Row = *const [u8]

The Rust type you’d like to map from. Read more

fn build(row: Self::Row) -> Result<Self>

Construct an instance of this type

impl SqlType for Binary

type IsNull = NotNull

Is this type nullable? Read more

impl<DB> ToSql<Binary, DB> for [u8]
where for<'a> DB: Backend<BindCollector<'a> = RawBytesBindCollector<DB>>,

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, DB>) -> Result

See the trait documentation.

impl<DB, const N: usize> ToSql<Binary, DB> for [u8; N]
where DB: Backend, [u8]: ToSql<Binary, DB>,

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, DB>) -> Result

See the trait documentation.

impl<DB> ToSql<Binary, DB> for Vec<u8>
where DB: Backend, [u8]: ToSql<Binary, DB>,

fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, DB>) -> Result

See the trait documentation.

impl Copy for Binary

impl SingleValue for Binary

Auto Trait Implementations§

impl Freeze for Binary

impl RefUnwindSafe for Binary

impl Send for Binary

impl Sync for Binary

impl Unpin for Binary

impl UnwindSafe for Binary

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dst. Read more

impl<ST, U, DB> CompatibleType<U, DB> for ST
where DB: Backend, ST: SqlType + SingleValue, U: FromSqlRow<ST, DB>,

type SqlType = ST

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoNotNullable for T
where T: SqlType<IsNull = NotNull>,

type NotNullable = T

The not nullable representation of this type. Read more

impl<T> IntoNullable for T
where T: SqlType<IsNull = NotNull> + SingleValue,

type Nullable = Nullable<T>

The nullable representation of this type. Read more

impl<T> IntoSql for T

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 more

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

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

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<ST> TypedExpressionType for ST
where ST: SingleValue,