Active Records - Userr_id - rails 4

Question

我是新來的鐵軌，所以任何幫助將不勝感激。我有模特用戶和廣告。用戶has_many廣告和廣告屬於用戶。

問題：當用戶創建廣告時，我希望創建的廣告自動鏈接到創建廣告的當前用戶。我不知道該如何去這

我知道如何在廣告控制檯

advert = Advert.first 
advert.userr_id = 3 
advert.save 

分配給用戶，但我不知道該如何在我的控制器實現這一點。任何方向性的建議是非常讚賞

模式

ActiveRecord::Schema.define(version: 20150330233948) do 

    create_table "adverts", force: true do |t| 
    t.string "title" 
    t.text  "content" 
    t.integer "category_jobtype_id" 
    t.integer "category_positiontype_id" 
    t.integer "salarystart" 
    t.integer "salaryend" 
    t.integer "category_country_id" 
    t.string "city" 
    t.string "town" 
    t.string "postcode" 
    t.integer "category_editorialapproval_id" 
    t.integer "category_applicationrequest_id" 
    t.datetime "created_at" 
    t.datetime "updated_at" 
    t.integer "userr_id" 
    end 

    create_table "userrs", force: true do |t| 
    t.string "email",     default: "", null: false 
    t.string "encrypted_password",  default: "", null: false 
    t.string "reset_password_token" 
    t.datetime "reset_password_sent_at" 
    t.datetime "remember_created_at" 
    t.integer "sign_in_count",   default: 0, null: false 
    t.datetime "current_sign_in_at" 
    t.datetime "last_sign_in_at" 
    t.string "current_sign_in_ip" 
    t.string "last_sign_in_ip" 
    t.datetime "created_at" 
    t.datetime "updated_at" 
    t.string "firstname" 
    t.string "lastname" 
    t.string "companyname" 
    t.integer "category_businesstype_id" 
    end 

    add_index "userrs", ["email"], name: "index_userrs_on_email", unique: true 
    add_index "userrs", ["reset_password_token"], name: "index_userrs_on_reset_password_token", unique: true 

end 

車型

class Advert < ActiveRecord::Base 
    belongs_to :user 
end 

class Userr < ActiveRecord::Base 
    has_many :adverts 
end 

控制器：廣告

class AdvertsController < ApplicationController 
    respond_to :html, :xml, :json 
    before_action :set_advert, only: [:show, :edit, :update, :destroy] 

    def index 
    @adverts = Advert.all 
    respond_with(@adverts) 
    end 

    def show 
    respond_with(@advert) 
    end 

    def new 
    @advert = Advert.new 
    respond_with(@advert) 
    end 

    def edit 
    end 

    def create 
    @advert = Advert.new(advert_params) 
    @advert.save 
    respond_with(@advert) 
    end 

    def update 
    @advert.update(advert_params) 
    respond_with(@advert) 
    end 

    def destroy 
    @advert.destroy 
    respond_with(@advert) 
    end 

    private 
    def set_advert 
     @advert = Advert.find(params[:id]) 
    end 

    def advert_params 
     params.require(:advert).permit(:title, :content, :category_jobtype_id, :category_positiontype_id, :salarystart, :salaryend, :category_country_id, :city, :town, :postcode, :category_editorialapproval_id, :category_applicationrequest_id) 
    end 
end 

控制器：Userr

任何幫助都會爲m非常感謝。書建議或教程會有所幫助....非常感謝

Answer 1

一旦你的用戶對象訪問，基本上你可以做：

def create 
    @advert = Advert.create(advert_params) 
    user.adverts << @advert 
    respond_with(@advert) 
end 

當您使用has_many方法，模型接收一些「免費」的方法。 <<()方法只是其中之一。你可以找出關於關聯的很多東西，並自動生成這些方法here。