Struct Lens 

pub struct Lens<M, T> { /* private fields */ }

A model field’s typed path, which queries filter and sort on, paired with the function that reads the field off a loaded record.

lens! builds one from a single field name, so the two halves cannot name different fields:

TextColumn::new(lens!(User.name)).searchable();

The filters, the Field constructors and Tenancy take a Lens or a plain path; a column needs a Lens, since it renders the value it sorts on.

Implementations

impl<M, T> Lens<M, T>

pub fn path(&self) -> &Path<M, T>

The field’s query path.

pub fn read<'a>(&self, record: &'a M) -> &'a T

Read the field off record.

Trait Implementations

impl<M, T> Clone for Lens<M, T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<M, T> Debug for Lens<M, T>

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

Formats the value using the given formatter.

impl<M, T> From<Lens<M, T>> for Path<M, T>

fn from(lens: Lens<M, T>) -> Self

Converts to this type from the input type.