Question

由于某些原因，我的用户在创建对象时没有与对象关联。每次我添加一个新的“行业”时，user_id就会变为零。我可以在控制台中更新它，但是当我创建这个行业时它无法正常工作。

user.rb

class User < ActiveRecord::Base
 has_many :industries
 has_many :categories
 has_many :startups
end

Industry.rb

class Industry < ActiveRecord::Base
    belongs_to :user
    has_many :categories
end

industries_controller.rb

class IndustriesController < ApplicationController
  before_action :set_industry, only: [:show, :edit, :update, :destroy]

  def index
    @industries = Industry.all.order("created_at DESC").paginate(:page => params[:page], :per_page => 20)
    authorize @industries
  end

  def show
    @categories = @industry.categories
  end

  def new
    @industry = Industry.new
    authorize @industry
  end


  def edit
  end


  def create
    @industry = Industry.new(industry_params)
    authorize @industry
    respond_to do |format|
      if @industry.save
        format.html { redirect_to @industry, notice: 'industry was successfully created.' }
        format.json { render :show, status: :created, location: @industry }
      else
        format.html { render :new }
        format.json { render json: @industry.errors, status: :unprocessable_entity }
      end
    end
  end


  def update
    respond_to do |format|
      if @industry.update(industry_params)
        format.html { redirect_to @industry, notice: 'Industry was successfully updated.' }
        format.json { render :show, status: :ok, location: @indsutry }
      else
        format.html { render :edit }
        format.json { render json: @industry.errors, status: :unprocessable_entity }
      end
    end
  end


  def destroy
    @industry.destroy
    respond_to do |format|
      format.html { redirect_to industries_url, notice: 'Inustry was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    def set_industry
      @industry = Industry.find(params[:id])
      authorize @industry
    end
   # def correct_user
     # @industry = current_user.industries.find_by(id: params[:id])
      #redirect_to industries_path, notice: "Not authorized to edit this Industry" if @industry.nil?
   # end

    def industry_params
      params.require(:industry).permit(:name)
    end
end

模式

create_table "industries", force: true do |t|
    t.string   "name"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "user_id"
  end

  create_table "users", 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   "role"
    t.string   "name"
  end

Answer 1

 def create
   @industry = Industry.new(industry_params)
   authorize @industry
   @industry.user = current_user
   # blah-blah
end

用户未在创建操作上与对象关联

1 个答案: