Struct sqlm_postgres::Row

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pub struct Row<Cols> { /* private fields */ }
Expand description

A row of data returned from Postgres.

Methods from Deref<Target = Row>§

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pub fn columns(&self) -> &[Column]

Returns information about the columns of data in the row.

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pub fn is_empty(&self) -> bool

Determines if the row contains no values.

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pub fn len(&self) -> usize

Returns the number of values in the row.

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pub fn get<'a, I, T>(&'a self, idx: I) -> T
where I: RowIndex + Display, T: FromSql<'a>,

Deserializes a value from the row.

The value can be specified either by its numeric index in the row, or by its column name.

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Panics if the index is out of bounds or if the value cannot be converted to the specified type.

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pub fn try_get<'a, I, T>(&'a self, idx: I) -> Result<T, Error>
where I: RowIndex + Display, T: FromSql<'a>,

Like Row::get, but returns a Result rather than panicking.

Trait Implementations§

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impl<Cols> Deref for Row<Cols>

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type Target = Row

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<Cols> From<Row> for Row<Cols>

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fn from(row: Row) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<Cols> !Freeze for Row<Cols>

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impl<Cols> !RefUnwindSafe for Row<Cols>

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impl<Cols> Send for Row<Cols>
where Cols: Send,

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impl<Cols> Sync for Row<Cols>
where Cols: Sync,

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impl<Cols> Unpin for Row<Cols>
where Cols: Unpin,

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impl<Cols> !UnwindSafe for Row<Cols>

Blanket Implementations§

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

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fn borrow(&self) -> &T

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

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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

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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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> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more