Ruby on Rails：Ransack未定义的方法`result`

Question

I'm new to ROR, so this could be a very simple problem.

I have just installed the ransack gem for my web application. I am wanting to search on project names and clients in my database. I have an index page view, which I use for my homepage, then a search page, which uses a search action that I created.

def index
@projects = Project.all

  respond_to do |format|
  format.html # index.html.erb
  format.json { render :json => @projects }
  end
 end


def search

  @q = Project.search(params[:q])
  @project_search = @q.result(:distinct => true)

  respond_to do |format|
    format.html # search.html.erb
    format.json { render :json => @projects }
  end
end

Here is part of my search view:

<%= search_form_for @q do |f| %>
  <%= f.label :project_name %>
  <%= f.text_field :project_name %>
  <%= f.label :client %>
  <%= f.text_field :client %>
  <%= f.submit %>
<% end %>

When I try and load the search page, I get this error:

undefined method `search'

With the extracted source being in my project controller at this line

@q = Project.search(params[:q])

Hopefully it's an easy fix, and you can explain what I'm doing wrong so I learn.

Any help at all will be appreciated.

Thanks in advance!

EDIT: I've added my index action above to show you that I have an index action, and a search action. Here is my routes.rb file as well.

FinalApp::Application.routes.draw do
resources :projects
match "search" => "projects#search", :as => :search
root :to => 'projects#index'
end

SECOND EDIT:

I hadn't restarted my server. I now have another error.

undefined method `result'

With the extracted source being in my project controller at this line

@project_search = @q.result(:distinct => true)

THIRD EDIT:

Another error :/

undefined method `schema_cache'

With the extracted source being in my project controller at this line

@q = Project.search(params[:q])

Answer 1

And you are sure you ran Bundle Install after adding the Gem to your Gemfile and restarted instance or have correct development env settings?

Ransack adds the search method so it would seem it is not properly installed.

Answer 2

Problem solved in another question: Ruby on Rails: Advanced search

I have never used the gem ransack , but I think your first line def search should be def index and than you define the search method somewhere else... or have you included a route for search in your routes.rb?

Anyway, what you are looking for is a very simple search and I don't think you need any gem for it.

You can define the search method in your model:

product.rb

def self.search(search)
  if search
    find(:all, :conditions => ['name LIKE ?', "%#{search}%"])
  else
    find(:all)
  end
end

products_controller.rb:

def index
  @projects = Project.search(params[:search])
end

The search form can be included anywhere in your application:

<% form_tag projects_path, :method => 'get' do %>
  <p>
    <%= text_field_tag :search, params[:search] %>
    <%= submit_tag "Search", :name => nil %>
  </p>
<% end %>

Please take a look here and if you need an advanced search look here .

I hope it helps