Struct diesel::pg::PgValue

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pub struct PgValue<'a> { /* private fields */ }
Available on crate feature postgres_backend only.
Expand description

Raw postgres value as received from the database

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impl<'a> PgValue<'a>

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pub fn new(raw_value: &'a [u8], type_oid_lookup: &'a dyn TypeOidLookup) -> Self

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.

Create a new instance of PgValue based on a byte buffer and a way to receive information about the type of the value represented by the buffer

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pub fn as_bytes(&self) -> &[u8]

Get the underlying raw byte representation

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pub fn get_oid(&self) -> NonZeroU32

Get the type oid of this value

Trait Implementations§

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impl<'a> Clone for PgValue<'a>

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fn clone(&self) -> PgValue<'a>

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
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impl<'a> TypeOidLookup for PgValue<'a>

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fn lookup(&self) -> NonZeroU32

Available on crate feature i-implement-a-third-party-backend-and-opt-into-breaking-changes only.
Lookup the type oid for the current value
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impl<'a> Copy for PgValue<'a>

Auto Trait Implementations§

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impl<'a> !RefUnwindSafe for PgValue<'a>

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impl<'a> !Send for PgValue<'a>

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impl<'a> !Sync for PgValue<'a>

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impl<'a> Unpin for PgValue<'a>

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impl<'a> !UnwindSafe for PgValue<'a>

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoSql for T

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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
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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
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impl<T> ToOwned for Twhere
T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

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

Performs the conversion.
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impl<V, T> VZip<V> for Twhere
V: MultiLane<T>,

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fn vzip(self) -> V