Check boxes search with Ransack gem

Question

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::Associa         


        

Answer 1

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) %>
  

    <% @users.each do |i| %>
      
<%= i.name %>
    <% end %>
  
<%= 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) %>
  

    <% @users.each do |i| %>
      
<%= i.name %>
    <% end %>
  
<%= paginate(@users) %>