Struct ComputedColumn 

pub struct ComputedColumn<M> { /* private fields */ }

A display-only column rendering any text from the row, with no query predicate.

tablo_core::ComputedColumn::new("Author", |p: &Post| p.author.get().name.clone())
    .include(Post::fields().author());

It maps to no column, so it neither searches nor sorts:

tablo_core::ComputedColumn::new("Name", |u: &User| u.name.clone()).sortable();

Implementations

impl<M> ComputedColumn<M>

where M: Model,

pub fn new( label: impl Into<String>, project: impl Fn(&M) -> String + Send + Sync + 'static, ) -> Self

Declare a column headed label rendering project(row).

pub fn include<T>(self, relation: impl Into<Include<M, T>>) -> Self

Declare a relation the projection reads, so the table loads it.

pub fn width(self, width: ColumnWidth) -> Self

Declare this column’s width.

Trait Implementations

impl<M> Clone for ComputedColumn<M>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<M> Column<M> for ComputedColumn<M>

where M: Model + Send + Sync + 'static,

fn name(&self) -> &str

The column’s identifier, distinct within its table.

fn label(&self) -> &str

The header text.

fn text(&self, row: &M) -> String

The row’s value as plain text.

fn column_width(&self) -> ColumnWidth

The width the column claims.

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

The relations text and cell read.

fn cell<'a>(&self, cx: &'a Cx, row: &M) -> BoxView<'a>

The row’s table cell.

fn is_searchable(&self) -> bool

Whether the column joins the table’s search.

fn search_expr(&self, _term: &str) -> Option<Expr<bool>>

The predicate a search for term adds.

fn is_sortable(&self) -> bool

Whether the header links to a sort on this column.

fn order_by(&self, _descending: bool) -> Option<OrderByExpr>

The ordering a sort on this column applies.

impl<M> Debug for ComputedColumn<M>

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

Formats the value using the given formatter.

impl<M> IntoColumns<M> for ComputedColumn<M>

where M: Model + Send + Sync + 'static,