Enum Autoincrement 

pub enum Autoincrement<T>
where
    T: Debug + Clone + PartialEq + Eq,
{
    Auto,
    Value(T),
}

Represents an autoincrement value, which can either be automatically generated or explicitly provided.

This is used when providing values in crate::prelude::InsertRecord if a column is defined as autoincrement. If the value is set to Autoincrement::Auto, the DBMS will automatically generate the next value for that column. If it is set to Autoincrement::Value, the provided value will be used instead.

Variants

Auto

Indicates that the value should be automatically generated by the DBMS.

Value(T)

Indicates that the provided value should be used for the autoincrement column.

Once inserted, the next value for the autoincrement column will be provided value + 1.

Implementations

impl<T> Autoincrement<T>

where T: Debug + Clone + PartialEq + Eq,

pub fn into_option(self) -> Option<T>

Converts the Autoincrement value into an Option<T>, where Autoincrement::Auto is represented as Option::None, and Autoincrement::Value is represented as Option::Some.

Trait Implementations

impl<T> Clone for Autoincrement<T>

where T: Debug + Clone + PartialEq + Eq + Clone,

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Autoincrement<T>

where T: Debug + Clone + PartialEq + Eq + Debug,

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

Formats the value using the given formatter.

impl<T> PartialEq for Autoincrement<T>

where T: Debug + Clone + PartialEq + Eq + PartialEq,

fn eq(&self, other: &Autoincrement<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> Eq for Autoincrement<T>

where T: Debug + Clone + PartialEq + Eq + Eq,

impl<T> StructuralPartialEq for Autoincrement<T>

where T: Debug + Clone + PartialEq + Eq,