Struct RelationLens 

pub struct RelationLens<M, R> { /* private fields */ }

A relation field’s include, which loads it, paired with the function that reads the loaded relation off a record.

relation! builds one from a single field name, so the column that reads the relation always declares its include:

RelationColumn::unscoped(relation!(Post.author), |a: &Author| a.name.clone());

Implementations

impl<M, R> RelationLens<M, R>

pub fn includes(&self) -> &Includes<M>

The include that loads the relation.

pub fn read<'a>(&self, record: &'a M) -> &'a R

Read the relation field off record.

Trait Implementations

impl<M, R> Clone for RelationLens<M, R>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<M, R> Debug for RelationLens<M, R>

fn fmt(&self, __f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.