Enum PostgresInsertValue 

pub enum PostgresInsertValue<'a, V: SQLParam, T> {
    Omit,
    Null,
    Value(ValueWrapper<'a, V, T>),
}

Represents a value for INSERT operations that can be omitted, null, or a SQL expression

Variants

Omit

Omit this column from the INSERT (use database default)

Null

Explicitly insert NULL

Value(ValueWrapper<'a, V, T>)

Insert a SQL expression (value, placeholder, etc.)

Implementations

impl<'a, T> PostgresInsertValue<'a, PostgresValue<'a>, T>

pub fn into_owned( self, ) -> PostgresInsertValue<'static, PostgresValue<'static>, T>

Converts this InsertValue to an owned version with ’static lifetime.

The whole SQL fragment is kept: placeholders stay unbound and expressions keep their shape, with every bound value detached from its borrow.

Trait Implementations

impl<'a, V: Clone + SQLParam, T: Clone> Clone for PostgresInsertValue<'a, V, T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, V: Debug + SQLParam, T: Debug> Debug for PostgresInsertValue<'a, V, T>

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

Formats the value using the given formatter.

impl<'a, V: SQLParam, T> Default for PostgresInsertValue<'a, V, T>

fn default() -> Self

Returns the “default value” for a type.

impl<'a> From<&str> for PostgresInsertValue<'a, PostgresValue<'a>, String>

fn from(value: &str) -> Self

Converts to this type from the input type.

impl<'a, T> From<Option<T>> for PostgresInsertValue<'a, PostgresValue<'a>, T>

where T: ToSQL<'a, PostgresValue<'a>>,

fn from(value: Option<T>) -> Self

Converts to this type from the input type.

impl<'a, T> From<Placeholder> for PostgresInsertValue<'a, PostgresValue<'a>, T>

fn from(placeholder: Placeholder) -> Self

Converts to this type from the input type.

impl<'a, T> From<T> for PostgresInsertValue<'a, PostgresValue<'a>, T>

where T: TryInto<PostgresValue<'a>>,

Converts any value that converts to a PostgresValue (enums, ArrayString, ArrayVec, …).

Panics

Panics when the value fails to convert (a JSON payload that fails to serialize, for example), rather than storing NULL in its place.

fn from(value: T) -> Self

Converts to this type from the input type.

impl<'a, M: DataType, N: Nullability, T> From<TypedPlaceholder<M, N>> for PostgresInsertValue<'a, PostgresValue<'a>, T>

fn from(typed: TypedPlaceholder<M, N>) -> Self

Converts to this type from the input type.