Trait PersistedFields 

pub trait PersistedFields {
    const FIELD_NAMES: &'static [&'static str];
    const FIELD_TYPES: &'static [ValueType] = _;
}

A type whose data names domain fields the persistence layer maps onto columns.

They are the fields a generated filter-options model filters on, a query model filters or sorts by, or a MergePatch model may write.

Implemented by the derives; the persistence layer checks at compile time that each field has a column before writing any SQL for the type’s data.

Required Associated Constants

const FIELD_NAMES: &'static [&'static str]

The domain fields, once each, in declaration order.

Provided Associated Constants

const FIELD_TYPES: &'static [ValueType] = _

The value type of each field, in FIELD_NAMES order (the IntoValue::TYPE of its raw value), for the persistence layer to check against its column’s type at compile time; empty when unknown, which checks nothing.

The derives fill it in for a filter-options model and a MergePatch model, whose data carries values; a query model’s sort keys carry none.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors