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

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