您好,我在使用设计的 Rails 3.2 应用程序中收到 NoMethodError in Users#show 错误。
下面我的节目第 2 行出错:
<strong>Firstname:</strong>
<%= @user.firstname %>
</p>
<p>
<strong>dateofbirth:</strong>
(如果我删除了名字框,则会出现出生日期等错误。)
我正在为我的用户使用设计,但生成了一个用户控制器来放置我的视图。
我不确定问题是什么,因为我运行了迁移并且架构中存在名字
这是用户控制器:
class UsersController < ApplicationController
# before_action :set_user, only: [:show, :edit, :update, :destroy]
def find
@user = User.new
end
def show
@user = User.find(params[:id])
end
# GET /users
# GET /users.json
def index
@users = User.all
end
# GET /users/1
# GET /users/1.json
def show
end
# GET /users/new
def new
@user = User.new
end
# GET /users/1/edit
def edit
end
# POST /users
# POST /users.json
def create
@user = User.new(user_params)
respond_to do |format|
if @user.save
format.html { redirect_to @user, notice: 'User was successfully created.' }
format.json { render action: 'show', status: :created, location: @user }
else
format.html { render action: 'new' }
format.json { render json: @user.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /users/1
# PATCH/PUT /users/1.json
def update
respond_to do |format|
if @user.update(user_params)
format.html { redirect_to @user, notice: 'User was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: 'edit' }
format.json { render json: @user.errors, status: :unprocessable_entity }
end
end
end
# DELETE /users/1
# DELETE /users/1.json
def destroy
@user.destroy
respond_to do |format|
format.html { redirect_to users_url }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_user
@user = User.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def user_params
params.require(:user).permit(:username, :firstname, :dateofbirth, :lastname, :gender, :location, :email, :password)
end
end