button_to没有通过正确的ID从PARAMS哈希 [英] button_to not passing correct id from params hash

问题描述

该button_to没有传递正确的ID给LINE_ITEM。在日志下面你看到正确的'86'到不正确的bike_id改变'1'（巧合的是我的USER_ID）。任何帮助将是AP preciated。下面是从我的development.log错误，然后从我的观点和控制器的code。谢谢你。

development.log

在启动POST/ line_items？bike_id = 86为127.0.0.1 2011-08-01 18点09分52秒-0400

DE preCATION警告：ActionController的设置filter_parameter_logging是德precated并且不再生效，请设置config.filter_parameters中的config / application.rb中代替。 （称为来自以下;等级：ApplicationController中＆gt;对于/Users/willdennis/rails_projects/spinlister/app/controllers/application_controller.rb:8）

处理由LineItemsController＃创建为HTML

参数：{authenticity_token=＆gt;中5GYQqvf7U5awhLrZ9Aw910ETf2kqOk3PI315jkjEfMU =，bike_id=＆GT;86}

[1分[35mCart负荷（0.6ms）0米选择大车。* FROM大车WHERE（大车。ID= 8）LIMIT 1
  [1分[36mBike负荷（1.2ms的）[0分[1mSELECT自行车。* FROM自行车WHERE（自行车。ID= 86）ORDER BY bikes.created_at DESC LIMIT 1 [0米
  [1分[35mSQL（0.5毫秒）[0米INSERT INTOline_items（bike_id，cart_id，created_at，的updated_at）值（1,8，'2011-08-01 22：09：53.208978' '2011-08-01 22：09：53.208978'）
  [1分[36mCart负荷（1.5毫秒）[0分[1mSELECT大车。* FROM大车WHERE（大车。ID= 8）LIMIT 1 [0米
重定向到的http：//本地主机：3000 /车/ 8
完成302 251ms找到

line_items_controller.rb

  DEF创建
 @cart = current_cart
 @bike = Bike.find（PARAMS [：bike_id]）
 @line_item = @ cart.line_items.build（：bike_id =＆GT; @bike）
 做的respond_to |格式|
    如果@ line_item.save
      format.html {redirect_to时（@ line_item.cart，
      ：通知=＆GT; 订单项已成功创建。'）}
      format.xml {渲染：XML =＆GT; @line_item，
      ：状态=＆GT; ：创建：位置=＆GT; @line_item}
    其他
      format.html {渲染：行动=＆GT; 新}
      format.xml {渲染：XML =＆GT; @ line_item.errors，
      ：状态=＆GT; ：unprocessable_entity}
    结束
  结束
结束
 

的意见/自行车/表演

 ＆LT;％= button_to租自行车这样！，line_items_path（：bike_id =＆GT; @bike）{：ID =＆GT; rentthisbike}％GT;
 

bike.rb

 类车和LT; ActiveRecord的::基地
 belongs_to的：用户
 的has_many：line_items
 attr_accessible：姓名，：描述：尺寸：biketype，：价格：照片，：ID，：地址：城市：状态：ZIP，：纬度，：经度，：居委会，：bike_id
结束
 

line_item.rb

 类的LineItem＆LT; ActiveRecord的::基地
  belongs_to的：自行车
  belongs_to的：车  accepts_nested_attributes_for：自行车：车  attr_accessible：bike_id，：自行车：车，：姓名，：描述：尺寸：biketype，：价格：照片，：ID，：地址：城市：状态：ZIP，：纬度，：经度，：邻里结束
 

cart.rb

 类车＆LT; ActiveRecord的::基地
 的has_many：line_items，：依赖=＆GT; ：破坏
 belongs_to的：用户 accepts_nested_attributes_for：line_items attr_accessible：bike_id，：line_items，：姓名，：描述：尺寸：biketype，：价格：照片，：ID，：地址：城市：状态：ZIP，：纬度，：经度，：居委会
结束
 

解决方案

你可以试试这个code和发布@@@@线项目与params哈希表一起进入属性从您的日志文件
我想这可能与你的current_cart方法，但我不知道

line_items_controller.rb

  DEF创建
 @bike = Bike.find（PARAMS [：bike_id]）
 @line_item = current_cart.line_items.build
 @ line_item.bike = @bike
 logger.debug（@@@@行项属性= #{@line_item.inspect}）
 做的respond_to |格式|
    如果@ line_item.save
      format.html {redirect_to时（@ line_item.cart，
      ：通知=＆GT; 订单项已成功创建。'）}
      format.xml {渲染：XML =＆GT; @line_item，
      ：状态=＆GT; ：创建：位置=＆GT; @line_item}
    其他
      format.html {渲染：行动=＆GT; 新}
      format.xml {渲染：XML =＆GT; @ line_item.errors，
      ：状态=＆GT; ：unprocessable_entity}
    结束
  结束
结束
 

更新。

您previous code，不同的是这条线细
@line_item = @ cart.line_items.build（：bike_id => @bike）
您作为自行车ID而不是自行车的ID值提供了全班同学。我知道这是不符合形式传递参数，但是这只是事情是这样的。

The button_to is not passing the correct id to the line_item. In the log below you see the bike_id change from the correct '86' to the incorrect '1' (which coincidentally is my user_id). Any help would be appreciated. Below is the error from my development.log, then the code from my view and controllers. Thanks.

development.log

Started POST "/line_items?bike_id=86" for 127.0.0.1 at 2011-08-01 18:09:52 -0400

DEPRECATION WARNING: Setting filter_parameter_logging in ActionController is deprecated and has no longer effect, please set 'config.filter_parameters' in config/application.rb instead. (called from <class:ApplicationController> at /Users/willdennis/rails_projects/spinlister/app/controllers/application_controller.rb:8)

Processing by LineItemsController#create as HTML

Parameters: {"authenticity_token"=>"5GYQqvf7U5awhLrZ9Aw910ETf2kqOk3PI315jkjEfMU=", "bike_id"=>"86"}

[1m[35mCart Load (0.6ms)[0m SELECT "carts".* FROM "carts" WHERE ("carts"."id" = 8) LIMIT 1 [1m[36mBike Load (1.2ms)[0m [1mSELECT "bikes".* FROM "bikes" WHERE ("bikes"."id" = 86) ORDER BY bikes.created_at DESC LIMIT 1[0m [1m[35mSQL (0.5ms)[0m INSERT INTO "line_items" ("bike_id", "cart_id", "created_at", "updated_at") VALUES (1, 8, '2011-08-01 22:09:53.208978', '2011-08-01 22:09:53.208978') [1m[36mCart Load (1.5ms)[0m [1mSELECT "carts".* FROM "carts" WHERE ("carts"."id" = 8) LIMIT 1[0m Redirected to http://localhost:3000/carts/8 Completed 302 Found in 251ms

line_items_controller.rb

def create
 @cart = current_cart
 @bike = Bike.find(params[:bike_id])
 @line_item = @cart.line_items.build(:bike_id => @bike)
 respond_to do |format|
    if @line_item.save
      format.html { redirect_to(@line_item.cart,
      :notice => 'Line item was successfully created.') }
      format.xml { render :xml => @line_item,
      :status => :created, :location => @line_item }
    else
      format.html { render :action => "new" }
      format.xml { render :xml => @line_item.errors,
      :status => :unprocessable_entity }
    end
  end
end

views/bikes/show

<%= button_to "Rent this Bicycle!", line_items_path(:bike_id => @bike), {:id => "rentthisbike"} %>

bike.rb

class Bike < ActiveRecord::Base
 belongs_to :user
 has_many :line_items
 attr_accessible :name, :description, :size, :biketype, :price, :photo, :id, :address, :city, :state, :zip, :latitude, :longitude, :neighborhood, :bike_id
end

line_item.rb

class LineItem < ActiveRecord::Base
  belongs_to :bike
  belongs_to :cart

  accepts_nested_attributes_for :bike, :cart

  attr_accessible :bike_id, :bike, :cart, :name, :description, :size, :biketype, :price, :photo, :id, :address, :city, :state, :zip, :latitude, :longitude, :neighborhood 

end

cart.rb

class Cart < ActiveRecord::Base
 has_many :line_items, :dependent => :destroy
 belongs_to :user

 accepts_nested_attributes_for :line_items

 attr_accessible :bike_id, :line_items, :name, :description, :size, :biketype, :price, :photo, :id, :address, :city, :state, :zip, :latitude, :longitude, :neighborhood 
end

解决方案

Can you try this code and post the @@@@ Line item attributes entry from your log file along with the params hash I think this may be related to your current_cart method but I'm not sure

line_items_controller.rb

def create
 @bike = Bike.find(params[:bike_id])
 @line_item = current_cart.line_items.build
 @line_item.bike = @bike
 logger.debug("@@@@ Line item attributes = #{@line_item.inspect}")
 respond_to do |format|
    if @line_item.save
      format.html { redirect_to(@line_item.cart,
      :notice => 'Line item was successfully created.') }
      format.xml { render :xml => @line_item,
      :status => :created, :location => @line_item }
    else
      format.html { render :action => "new" }
      format.xml { render :xml => @line_item.errors,
      :status => :unprocessable_entity }
    end
  end
end

Update.

Your previous code was fine except for this line @line_item = @cart.line_items.build(:bike_id => @bike) You were supplying the whole class as the value for the bike ID instead of the id of the bike. I know this is inconsistent with passing form parameters but that's just the way it is.

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