我正在学习web-dev和rails,并且已经停留了几天。
我有两个模型 - User
和Property
,并且我认为有正确的设置关联。
我尝试做的只是在property
已登录并且user
属于该property
时才允许创建user
"Couldn't find User..."
}。我获得了部分签名,但是当我去创建属性时,它会给我DB SQL Browser
错误。
我使用class PropertiesController < ApplicationController
before_action :authenticate_user!, only: [:new]
def index
@properties = Property.all
end
def new
@property = Property.new
end
def create
@user = User.find(params[:user_id])
@property = @user.properties.new(property_params)
respond_to do |format|
if @property.save
format.html { redirect_to @property, notice: 'Property was successfully created.' }
format.json { render :show, location: @property}
else
format.html { render :new }
format.json
end
end
end
def show
@property = Property.find(params[:id])
end
def edit
end
def update
end
def destroy
end
private
def property_params
params.require(:property).permit(:street, :city, :province, :postal_code, :description, :picture)
end
end
验证是否有用户并且有用户ID,因此无法理解登录后无法找到的原因。
感谢任何帮助。
控制器:
ActiveRecord::Schema.define(version: 20160204211556) do
create_table "properties", force: :cascade do |t|
t.string "street"
t.string "city"
t.string "province"
t.string "postal_code"
t.text "description"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.integer "property_id"
t.string "picture"
t.integer "user_id"
end
add_index "properties", ["property_id"], name: "index_properties_on_property_id", unique: true
add_index "properties", ["user_id"], name: "index_properties_on_user_id"
create_table "users", force: :cascade do |t|
t.string "name"
t.string "email"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "password_digest"
t.string "remember_digest"
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"
end
add_index "users", ["email"], name: "index_users_on_email", unique: true
add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
end
数据库:
class Property < ActiveRecord::Base
belongs_to :user, dependent: :destroy
mount_uploader :picture, PictureUploader
end
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
has_many :properties
end
模特:
{{1}}
答案 0 :(得分:0)
如果您能提供routes.rb
和错误消息,那就太棒了。
我的猜测是,由于您在属性控制器中执行了@user = User.find(params[:user_id])
,因此params中不存在user_id,因此rails无法找到user_id。
在routes.rb
中,您可能需要
resources :users do
resources :properties
end
这样链接就会变成localhost:3000/users/1/properties/new
,rails可以找到user_id。
答案 1 :(得分:0)
为什么不使用
@user = User.new(user_permit)
在 def创建
上然后将其添加到控制器的底部
private
def user_permit
params[:user].permit!
end
答案 2 :(得分:0)