Pre-built components: Show

Compony::Components::Show is a resourceful standalone component corresponding to a Rails show action. It loads @data by :id and presents its fields.

What it does by default

From lib/compony/components/show.rb:

Route: standalone path: "/#{family_name}/:id" with an :id constraint that accepts integer or UUID ids, verb :get authorized by can?(:show, @data).
Labels: long = data.label; short = a generic translated "Show".
Exposed intents: :edit and :destroy for @data, plus a :back_to_owner intent if the model is owned.
Content blocks:
- :label → h2 component.label
- :main → renders the :data block (override :main to wrap :data in a card etc.)
- :data (hidden) → if no columns were declared, calls all_field_columns(@data), then renders a two-column table of label/value per permitted field.

class Components::Users::Show < Compony::Components::Show; end   # fully functional

Column DSL

Show shares a column/columns DSL with List (here "column" means an attribute row, since Show renders one record).

Method	Signature	Description
`column`	`column(:name, label: nil, class: nil, link_opts: {}, link_to_component: :show) { \	record\
`columns`	`columns(:a, :b, **shared_kwargs)`	Bulk `column`.
`all_field_columns`	`all_field_columns(@data)`	Add a column for every model field (the default when none declared).
`skip_column`	`skip_column(:name)`	Drop an inherited column. When nesting Show in a parent, prefer the constructor's `skip_columns:` kwarg.

Field columns are only rendered if the current ability permits :show on that attribute; a nil value hides the row.

class Components::Users::Show < Compony::Components::Show
  setup do
    columns :name, :email, :created_at
    column :status do |user|                       # custom computed row
      user.active? ? 'Active' : 'Disabled'
    end
    skip_column :created_at                         # if inherited and unwanted

    content do                                      # wrap :data in app chrome
      div class: 'card card-body' do
        content :data
      end
    end
  end
end

UUID/string ids work out of the box thanks to the route constraint. For nesting a Show (or its :data) inside another component see Nesting; for the app base-layer approach see Real-world patterns.