Trait PrimaryKeyToColumn

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pub trait PrimaryKeyToColumn {
    type Column: ColumnTrait;

    // Required methods
    fn into_column(self) -> Self::Column;
    fn from_column(col: Self::Column) -> Option<Self>
       where Self: Sized;
}

Expand description

Conversion between an entity’s PrimaryKey enum and its Column enum. Generated alongside PrimaryKeyTrait for every entity.

Required Associated Types§

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type Column: ColumnTrait

The entity’s column enum (i.e. <Self::Entity as EntityTrait>::Column).

Required Methods§

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fn into_column(self) -> Self::Column

Convert a primary-key variant into the matching column.

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fn from_column(col: Self::Column) -> Option<Self>
where Self: Sized,

Reverse of into_column. Returns None if col is not part of the primary key.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".