Implement Solr Search into Rails Project

I am trying to implement solr search into one of my rails project. My problem statement is to be able to search upon my models and show relevant results along with auto suggest. Could someone help me to complete it properly. At the moment I am trying to use sunspot solr although its not working for me as expected. I can see some indexing has been created in my project but the search is not working. Also there is no gem for auto suggest. Below are some snippets of my code. And yes I have gone through other links for solr and it did not solve my problem.

Category Model

class Category < ActiveRecord::Base
  attr_accessible :name, :parent_category_id, :image, :image_file_name,     :image_content_type, :image_file_size
  has_and_belongs_to_many :events, :join_table => :categories_events

  has_attached_file :image

  searchable do
    text :name
  end

end

My Controller

if params.has_key?(:category)
  puts "Inside Index Search"
  puts params[:category]
  @search = Category.ransack do 
    fulltext params[:category]
  end
  @category = @search.result.first

I am getting the results into @category and using it in my view to display.

Thanks in advance. I really appreciate your help. :-)

Solution

I solved it. There was a conflict between Solr and Ransack gem and that's why I could not get the resultset. It needed the below changes and its working now.

    @search = Sunspot.search(Category) do 
      fulltext params[:search]
    end
    @category = @search.results

EDIT

My answer might not seem complete so just adding the code snippet that worked for me.

My Model

searchable do
    text :name, :as => :name_textp
    text :description, :as =>  :description_textp
    text :category_strings, :as => :category_strings_textp
    string :get_valid_dates, :multiple => true
    integer :category_ids, :multiple => true
    boolean :active
    boolean :company_display
end

My Controller

search_results = Sunspot.search(Event) do
    fulltext current_search
    with(:category_ids, [ id ])
    with(:active, true)
    with(:company_display, true)
    paginate(:page => @current_page, :per_page => page_size)
end

Hope it helps.