Rails core - Feb 2013 - Rendering collections with custom partial paths

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<http://blog.plataformatec.com.br/2012/01/my-five-favorite-hidden-features-in-rails-3-2/>,
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.

-- 
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Core" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to rubyonrails-core+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-core@googlegroups.com.
Visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.

The idea is to make an ability to give a Proc to ''partial''
option. It will
be yielded with ''object'' argument:

render partial: -> { |car|
"#{car.to_partial_path}_#{your_role_for(car)}"
}, collection: @cars

It''s backward compatibility...

-- 
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Core" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to rubyonrails-core+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-core@googlegroups.com.
Visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.