Ransack search and translations

Question

I´m trying to make ransack work on a model that has an association with a translation table.

Translations are managed by globalize gem.

The problem is when I

Answer 1

Globalize gives you a class method of with_translations like:

User.with_translations('en')

And so you can set up your own scope on your model that takes advantage of this like:

def self.with_translated_name(name_string)
  with_translations(I18n.locale).where('user_translations.name' => name_string)
end

Then you can expose this scope in your ransackable_scopes array in the model in question, like:

private

def self.ransackable_scopes   
  %i(with_translated_name) 
end

With that in place you should be able to do:

User.ransack({ with_translated_name: "John" }) 

Answer 2

While @rlarcombe his answer works in this specific situation, you loose all predicates that ransack provides (eq, cont, etc.) and are basically writing the search query yourself.

Globalize adds the translation table as an association and ransack provides the ability to search on associated tables by prefixing the searchable attribute with the associated table name.

For your situation this would work and would still allow you to use all of ransack's predicates.

User.with_translations(I18n.locale).ransack(translations_name_eq: 'John')

You can use other predicates like cont (contains) for ILIKE matching by just replacing the predicate suffix:

User.with_translations(I18n.locale).ransack(translations_name_cont: 'John')