gistfile1.txt

 def create     
 
    if user_signed_in?
 
      @url = current_user.urls.new(url_params)
 
      respond_to do |format|
        if @url.save
          format.html { redirect_to root_path }
          format.json { render :show, status: :created, location: @url }                            
        else
          format.html { redirect_to root_path }          
          format.json { render json: @url.errors, status: :unprocessable_entity }
        end
      end  
 
    else
 
      @url = Url.new(url_params)
      @url.attributes = {user_id: '0'} 
 
      respond_to do |format|
        if @url.save    
          #format.html { redirect_to root_path, notice: 'Link Salvo.'  }                  
          format.json { render json: @url.minaddress }                                
        else
         format.html { redirect_to root_path, notice: 'Link Invalido' }          
         format.json { render json: @url.errors }
        end
      end      
    end   
       
  end