Struct UnitValue

pub struct UnitValue<T: FromSql + ToSql>(pub T);

A single column row

Tuple Fields

0: T

Trait Implementations

impl<T: Clone + FromSql + ToSql> Clone for UnitValue<T>

fn clone(&self) -> UnitValue<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + FromSql + ToSql> Debug for UnitValue<T>

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

Formats the value using the given formatter.

impl<T: Default + FromSql + ToSql> Default for UnitValue<T>

fn default() -> UnitValue<T>

Returns the “default value” for a type.

impl<T: FromSql + ToSql> Row for UnitValue<T>

const COLUMN_COUNT: Option<usize>

If Some, serialize_row and deserialize_row MUST return this number of columns

fn column_names() -> Option<Vec<Cow<'static, str>>>

If Some, serialize_row and deserialize_row MUST have these names

fn to_schema() -> Option<Vec<(String, Type, Option<Value>)>>

Infers the schema and returns it.

fn deserialize_row(map: Vec<(&str, &Type, Value)>) -> Result<Self>

Errors

fn serialize_row( self, type_hints: &[(String, Type)], ) -> Result<Vec<(Cow<'static, str>, Value)>>

Errors