Good day!
Sometimes we want just to render a collection:
render partial: collection: @cars
Sometimes we want to render a collection using custom partial name:
render partial: ‘car_short’, collection: @cars
Ok but if Car has has STI-subclasses we should write
class Car < ActiveRecord::Base; def to_partial_path(); “cars/#{kind}”; end; end render collection: @cars
But wait! Partial will be ‘cars/bmw’, ‘cars/mercedes’. But sometimes I want to render a collection with ‘_short’ postfix. But sometimes without it. But ‘to_partial_path’ is common…
What to do? This brief article, 4) Custom partial paths, says to do
@cars.each do |car| render partial: “cars/#{car.kind}_short”, locals: { car: car } end
But this code is… I don’t like to do so, do you?
What about new ‘render’'s option? A ‘postfix’/‘prefix’ options are nice for this example but…
Another example. Partial name is related to your role for this object (‘owner’, ‘admin’, etc.):
@cars.each do |car| render partial: “#{car.to_partial_path}_#{your_role_for(car)}”, locals: { car: car } end
What do you think? Is it a good idea? Thanx.
