Trait pliantdb_core::schema::view::map::EnumKey [−][src]
pub trait EnumKey: ToPrimitive + FromPrimitive + Clone + Send + Sync { }
Adds Key support to an enum. Requires implementing
ToPrimitive and
FromPrimitive, or using a crate like
num-derive to do it automatically.
Take care when using enums as keys: if the order changes or if the meaning
of existing numerical values changes, make sure to update any related views’
version number to ensure the values are re-evaluated.