Modifying param key to use query twice in controller

Question

I'm using Ransack to run search on my app. I've got a search bar that users input text to, the text is passed to a search controller where I search for the query in two tables: Posts and Groups

The problem is that I want to run the query on :name and :title for Groups and Posts respectively and then serve both sets of results on the same page. The search form uses :name_cont and so I am trying to copy the hash that this form sends to the controller and change the key to :title_cont when I run the same search on Posts.

Don't hesitate to ask for clarification.

Search Controller

class SearchController < ApplicationController
  def index
    @q = Group.search(params[:q])
    @groups = @q.result
    @group_count = @groups.count

    #query = params[:q][:name_cont]
    posthash = { :q => {:title_cont => params[:q][:name_cont]} }
    @q = Post.search(posthash)
    @posts_results = @q.result(:distinct => true)
    @post_count = @posts.count

  end
end

Search Form:

=search_form_for @q, :url => { :controller => "search", :action => "index" }do |f|
  =f.text_field :name_cont
  =f.submit 'search'

Error that it yields:

undefined method `name_cont' for #<Ransack::Search:0x007fc0f798df18>

UPDATE 1:

class SearchController < ApplicationController
  def index
    @q = Group.search(params[:q])
    @groups = @q.result
    @group_count = @groups.count

    #I am trying to take the query, i.e. the "value" in params[:q]
    #and pass it into a new hash to use as a parameter in 'search'
    posthash = { :q => {:title_cont => params[:q][:name_cont]} }

    @q2 = Post.search(posthash)
    @posts_results = @q2.result(:distinct => true)
    @post_count = @posts.count

  end
end

Answer 1

You're overriding @q for searching posts, which responds to title not to name, eventually the search form gets an object that doesn't have name_cont but title_cont instead, so you need to use another variable name for searching posts other than @q.