Formtastic setup

gistfile1.rb

# My active admin spotlight model(where form is displayed to add new):

ActiveAdmin.register Spotlight do

 form do |f|
    f.inputs do
  		f.input :video
  		f.input :image
  		f.input :description
		  f.input :band, :as => :select, Bands.find(:all,:order =>"title").collect{|band|[band.title, band.id]}
  	end
  	f.buttons
  end
  
  controller do
    def permitted_params
      params.permit(:spotlight => [:video, :image, :description])
    end
  end
end

#Model for spotlight:

class Spotlight < ActiveRecord::Base

  has_attached_file :image, styles: {
		large: "600x450#",
		medium: "250x250#",
		small: "100x100#"
	}, :default_url => "/images/:style/filler.png"
	
	belongs_to :band
end

#Model for bands:

class Bands < ActiveRecord::Base

  has_attached_file :picture, styles: {
		large: "600x450#",
		medium: "250x250#",
		small: "100x100#"
	}, :default_url => "/images/:style/filler.png"

  validates :title, presence: true
  
  has_many :spotlight

end

#Routes file just in case:

Oiwbuild::Application.routes.draw do

  resources :bands, only: [:index, :show] do
  end
  resources :spotlight, only: [:index, :show, :new] do
  end
  root :to => "home#index"
  devise_for :admin_users, ActiveAdmin::Devise.config
  ActiveAdmin.routes(self) 
   
end