I18n in Rails

[dhnaranjo]

Whattup y'all. So, phlex-translate exists, but in a Rails app I'd like to take advantage of the built in translation inference and lazy lookup biz as much as possible. Rails translate is accessible through helpers, but if you hit helpers.translate(".some_scoped_key") you get Cannot use t(".some_scoped_key") shortcut because path is not available. The unavailable path comes from the @virtual_path instance variable on the view context. Anyways, I ended up here:

class ApplicationComponent < Phlex::HTML
  ...
  def t(...)
    helpers.instance_variable_set(:@virtual_path, translation_path)
    helpers.translate(...)
  end

  def translation_path
    @_parent&.translation_path || helpers.controller_path.tr("/", ".")
  end
  ...
end

class ApplicationView < ApplicationComponent
  def translation_path
    path_name = self.class.name.demodulize.underscore.delete_suffix("_view")
    "#{super()}.#{path_name}"
  end
end

This allows me to make components like:

class ThingComponent < ApplicationComponent
  def template
    t(".thing", default: t("components.thing"))
  end
end

Businesses::ShowView < ApplicationView
  def template
    render(ThingComponent)
  end
end

BusinessController < ApplicationController
  def show
    render ShowView.new
  end
end

Now when Thing goes to render it'll first look at "businesses.show.thing" before falling back to "components.thing", allowing me to have an overrideable default where-ever I use the component.

And lemme tell you it works out real nice. Now, other than that setting an instance variable on another object directly is gross, is anything wrong with this approach?

[davidalejandroaguilar]

Isn't this solved by using phlex-translation as the docs mention?

The only caveat is that if you have Admin::Users::ShowView your translation key must be en.admin.users.showview (instead of show_view), which is not ideal, but it works.

[stex]

Which can be solved by overriding the translation path:

def self.translation_path
  @translation_path ||= name&.split("::")&.join(".")&.underscore.to_s
end

In the end, phlex-translation is only 2 methods