Ruby on rails 如果@admin.save,则未定义方法
我有一个非常奇怪的错误,当我提交表单以创建新管理员时,我遇到了以下错误:Ruby on rails 如果@admin.save,则未定义方法,ruby-on-rails,ruby,ruby-on-rails-3,ruby-on-rails-4,Ruby On Rails,Ruby,Ruby On Rails 3,Ruby On Rails 4,我有一个非常奇怪的错误,当我提交表单以创建新管理员时,我遇到了以下错误: NoMethodError in AdminsController#create undefined method `admin?' for #<Admin:0x6c7f098> 这个错误是如何产生的?我主要使用scaffold代码,我只删除了控制器的视图!这是我的控制器:谢谢大家的帮助 class AdminsController < ApplicationController before_ac
NoMethodError in AdminsController#create
undefined method `admin?' for #<Admin:0x6c7f098>
这个错误是如何产生的?我主要使用scaffold代码,我只删除了控制器的视图!这是我的控制器:谢谢大家的帮助
class AdminsController < ApplicationController
before_action :set_admin, only: [ :edit, :update, :destroy]
# GET /admins/new
def new
@admin = Admin.new
end
# GET /admins/1/edit
def edit
end
# POST /admins
# POST /admins.json
def create
@admin = Admin.new(admin_params)
respond_to do |format|
if @admin.save
format.html { redirect_to adminpage_index_path, notice: 'Admin was successfully created.' }
else
redirect_to adminpage_index_path
end
end
end
# PATCH/PUT /admins/1
# PATCH/PUT /admins/1.json
def update
respond_to do |format|
if @admin.update(admin_params)
format.html { redirect_to adminpage_index_path , notice: 'Admin was successfully updated.' }
format.json { head :no_content }
else
redirect_to adminpage_index_path
end
end
end
# DELETE /admins/1
# DELETE /admins/1.json
def destroy
@admin.destroy
respond_to do |format|
format.html { redirect_to adminpage_index_path }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_admin
@admin = Admin.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def admin_params
params.require(:admin).permit(:username, :vorname, :nachname, :strasse, :ort, :plz, :telefon, :handy, :email, :password, :password_confirmation)
end
end
class AdminsController
在我看来,您的管理模型可能不是从ActiveRecord::Base继承的。一定要这样。模型应如下所示:
class Admin < ActiveRecord::Base
# ...
end
class Admin
您的管理模型具有某种回调。i、 e.保存前、保存后、验证后。像这样的东西是想打电话给管理员
Post admin.rb文件和错误的堆栈跟踪,这应该很容易找到。我猜模型中有什么东西导致了这个问题。仔细查看堆栈跟踪,找出有问题的行和调用它的上下文。您正在查找对方法
admin?
的引用,该方法不在此处的代码中。哪一行导致此问题?admin=admin.new(admin_参数)或admin.save?上面写着admin.save!我将研究我的模型,并向您报告更多信息
class Admin < ActiveRecord::Base
# ...
end