Trait django_query::filtering::Field

pub trait Field<R>: Clone {
    type Value;
    fn apply<O: Operator<Self::Value>>(&self, op: &O, data: &R) -> bool;
}

A wrapper for one field of another type.

A Field allows us to apply an Operator to one field of a structure. You will normally generate implementations of Field using the Filterable derive macro for your type. The key use of Field is in traversing nested structures: whereas a Member represents applying an operator to an Operable value, the value of a Field can be arbitrary, and is often a structured type.

Associated Types

type Value

The type an operator on this field must accept.

Required methods

fn apply<O: Operator<Self::Value>>(&self, op: &O, data: &R) -> bool

Apply op to a particular field of data, and return the result.

Implementors