Trait toql::key_fields::KeyFields

pub trait KeyFields {
    type Entity;

    fn fields() -> Vec<String, Global>;
    fn params(&self) -> Vec<SqlArg, Global>;
}

The KeyFields trait is similar to Key but provides field names instead of columns. It is used to build key predicates in Toql queries.

Required Associated Types

type Entity

Required Methods

fn fields() -> Vec<String, Global>

Return primary key fields for a given entity.

fn params(&self) -> Vec<SqlArg, Global>

Return key values as params. Useful to loop across a composite key.

Implementors

impl<T> KeyFields for Join<T> where
    T: KeyFields + Keyed,
    <T as Keyed>::Key: KeyFields, 

type Entity = <T as KeyFields>::Entity