ruby-on-railsruby-on-rails-4ransackmeta-search

Check boxes search with Ransack gem


I need to filter data in a table. To do this, I found meta_search gem. I installed meta_search and I get this error:

uninitialized constantActiveRecord::Associations::ClassMethods::JoinDependency

This is deprecated for Rails 4 (framework that I'm using). So, I installed ransack (rails 4 branch) (gem based on meta_search) and works beautifully. The problem is that I need to use the meta_search's collection_checks method to handle check boxes and this method does not exist in ransack. So, the question is: there is a method in ransack similar to collection_checks to manage checkboxes? or how can I do this?

I have this:

enter image description here

And I want to filter and get rows with cars, bikes or both


Solution

  • I'm not familiar with meta search but in Ransack (in Rails 4) you can use something like this:

    MODELS:

    class User < ActiveRecord::Base
      has_many :user_vehicles 
      has_many :vehicles, through: :user_vehicles
    end
    
    class UserVehicle < ActiveRecord::Base
      belongs_to :user
      belongs_to :vehicle
    end
    
    class Vehicle < ActiveRecord::Base
      has_many :user_vehicles
    end
    

    Controller:

    class UsersController < ApplicationController
      def index
        @q = User.search(params[:q])
        @users = @q.result(distinct: true)
      end
    end
    

    View:

    <%= search_form_for @q , url: users_path, :html => { class: 'your-class' } do |f| %>
      <% Vehicle.all.each do |vehicle| %>
         <%= check_box_tag('q[vehicles_id_eq_any][]', vehicle.id ) %>
         <%= vehicle.name %>
      <% end %>
      <%= f.submit "Search" %>
    <% end %>
    
    <%= paginate(@users) %>
      <ul>
        <% @users.each do |i| %>
          <li><%= i.name %></li>
        <% end %>
      </ul>
    <%= paginate(@users) %>
    

    You can also use gem for pagination if you still don't use one. I use Kaminari. In this case your controller and view could look like this:

    Controller:

    class UsersController < ApplicationController
      def index
        @q = User.search(params[:q])
        @users = @q.result(distinct: true).page params[:page]
      end
    end
    

    View:

    <%= search_form_for @q , url: users_path, :html => { class: 'your-class' } do |f| %>
      <% Vehicle.all.each do |vehicle| %>
         <%= check_box_tag('q[vehicles_id_eq_any][]', vehicle.id ) %>
         <%= vehicle.name %>
      <% end %>
      <%= f.submit "Search" %>
    <% end %>
    
    <%= paginate(@users) %>
      <ul>
        <% @users.each do |i| %>
          <li><%= i.name %></li>
        <% end %>
      </ul>
    <%= paginate(@users) %>