Custom search with ransacker

Question

I\'m trying to add a custom filter to ActiveAdmin which is powered by Ransack these days. Unfortunately, ransacker is not documented at all and from the few res

Answer 1

There's a feature for ransackable scopes waiting to be merged: https://github.com/activerecord-hackery/ransack/pull/288

UPDATE:

I've given the work of avit and glebm another go with PR https://github.com/activerecord-hackery/ransack/pull/390 which has been merged, it's therefore now possible to use scopes with Ransack. For the documentation, see the commit:

https://github.com/svoop/ransack/commit/72dd5d12d58919bf37199234cf13f9533f3b8cd5

Here's a real-life example:

class Project < ActiveRecord::Base
  scope :full_text_search, ->(search) { search_in_all_translated(search) }

  def self.ransackable_scopes(auth_object = nil)
    [:full_text_search]
  end
end

In this example search_in_all_translated returns some complex indexed full text search SQL.

Answer 2

in or cont_any do a search via an array. So in this case, it's doing a search Model.where(something: ["tom", "tom1", "tom2"] and because of the way the params[:q] works, it returns it to your input as an array. A quick and dirty fix I did to help user experience is added value: nil, to the input form