Rails 4搜索Multiple Params

Question

如果存在两个参数,我正在寻找搜索和查找结果,但我将被发送到car_show_path,但应该有结果.

模型

class Car < ActiveRecord::Base
  def self.search(car_number, car_model) 
    where(['car_number = ? AND car_model = ?', "%#{car_number}%", "%#{car_model}%"])
  end
end

控制器展示

 @search = Car.search(params[:car_number], params[:car_model])
   if @search.present?
       @search
    else
     redirect_to car_path, notice: "Not a valid combination"
    end

形成

<%= simple_form_for :search, url: car_show_path do |f| %>
  <%= f.input :car_number, :collection => @car.collect {|c| [c.number]}, :include_blank => false %>
  <%= f.input :car_model, placeholder: "Car Model" %>
  <%= f.button :submit, 'Generate', class: 'btn' %>
<% end %>

Answer 1

你做错了.如果查看服务器日志中生成的params哈希,可以看到类似这样的内容:search => {:car_model => "value", :car_number => "Value"}.这意味着,值:car_model和:car_number不能被检索params[:car_model]和params[:car_number],而应该使用params[:search][:car_model]和params[:search][:car_number]

@search = Car.search(params[:search][:car_number], params[:search][:car_model])
if @search.present?
  @search
else
  redirect_to car_path, notice: "Not a valid combination"
end