Ruby on rails 未定义的方法';装载的物品';
这里缺少一些基本的东西。当尝试检查从该API获取某些项是否完成时,获取未定义的方法“items\u loaded” 您可以动态运行的Live app: 2015060412014\u将加载的项目添加到\u附属公司。rbRuby on rails 未定义的方法';装载的物品';,ruby-on-rails,Ruby On Rails,这里缺少一些基本的东西。当尝试检查从该API获取某些项是否完成时,获取未定义的方法“items\u loaded” 您可以动态运行的Live app: 2015060412014\u将加载的项目添加到\u附属公司。rb class MainController < ApplicationController def index # Delay fetching # @products = Affiliate.fetch @products = Affiliate
class MainController < ApplicationController
def index
# Delay fetching
# @products = Affiliate.fetch
@products = Affiliate.delay.fetch
# Let us know when fetching is done
Affiliate.set_items_loaded
end
def check_items_loaded
@items_status = Affiliate.items_loaded
respond_to do |wants|
wants.js
end
end
end
require "rest_client"
class Affiliate < ActiveRecord::Base
def self.fetch
response = RestClient::Request.execute(
:method => :get,
:url => "http://api.shopstyle.com/api/v2/products?pid=uid7849-6112293-28&fts=women&offset=0&limit=10"
)
@products = JSON.parse(response)["products"].map do |product|
product = OpenStruct.new(product)
product
end
end
def self.set_items_loaded
self.update_all(items_loaded: true)
end
end
get '/check_items_loaded', to: 'main#check_items_loaded', as: :check_items_loaded
class AddItemsLoadedToAffiliates < ActiveRecord::Migration
def self.up
change_table :affiliates do |t|
t.column :items_loaded, :boolean, default: false
end
end
def self.down
change_table :affiliates do |t|
t.remove :items_loaded
end
end
end
class AddItemsLoadedToAffiliates
items\u loaded
是一个实例方法,而不是类方法。酷,那我该怎么办?得到了一个类似的用例(),我成功地实现了@photo\u status=photo.find(params[:id])。附件处理
很好。@FlyntHamlock,因为find
返回了一个实例。我明白了。我之前尝试了@items\u status=Affiliate.find(:all).items\u loaded
,但没有成功。我哪里出错了?这些项目不在数据库中,所以我想我无法查找参数[:id]
?@FlyntHamlock,因为查找(:all)
返回所有附属公司,而不是附属公司的实例。
class AddItemsLoadedToAffiliates < ActiveRecord::Migration
def self.up
change_table :affiliates do |t|
t.column :items_loaded, :boolean, default: false
end
end
def self.down
change_table :affiliates do |t|
t.remove :items_loaded
end
end
end
@items_status = Affiliate.items_loaded