1
好的人，Rails 5的细微差别与Rails 4有很大不同。我现在所做的是每次单击submit按钮在其重新加载的格式中出现错误配置文件用户必须存在和配置文件用户不能为空。形式加载罚款包括嵌套模型的形式，可不论什么原因，没有试图救孩子模型以下输出到控制台前保存父模型：Rails 5 - 保存回滚，因为嵌套模型父模型没有被保存在子模型之前
Puma starting in single mode...
* Version 3.7.0 (ruby 2.2.6-p396), codename: Snowy Sagebrush
* Min threads: 5, max threads: 5
* Environment: development
* Listening on tcp://0.0.0.0:3000
Use Ctrl-C to stop
Started POST "/users" for 192.168.0.31 at 2017-03-09 18:51:04 -0500
Cannot render console from 192.168.0.31! Allowed networks: 127.0.0.1, ::1, 127.0.0.0/127.255.255.255
ActiveRecord::SchemaMigration Load (0.2ms) SELECT `schema_migrations`.* FROM `schema_migrations`
Processing by UsersController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"JPKO+ppAYqwWS8tWeXhEtbUWynXREu9jYlF0KIlyPgUaabHSzjPZocSxCvr/WEm1r6wAQyT1CvA6hNkZWfPD3Q==", "user"=>{"username"=>"test", "password"=>"[FILTERED]", "user_type_id"=>"1", "profile_attributes"=>{"first_name"=>"123", "middle_name"=>"123", "last_name"=>"123", "email"=>"[email protected]", "phone_number"=>"1234567890", "cell_number"=>"1234567890"}}, "commit"=>"Create User"}
(0.1ms) BEGIN
(0.2ms) ROLLBACK
Rendering users/new.html.erb within layouts/application
Rendered users/_form.html.erb (112.5ms)
Rendered users/new.html.erb within layouts/application (118.7ms)
Completed 200 OK in 834ms (Views: 780.1ms | ActiveRecord: 2.2ms)
我也有过其他出现这种关系的问题，我在想，也许我需要重建项目。 这里是所有解决此问题的相关代码：
###############################################################################
### Users Model
###############################################################################
class User < ApplicationRecord
has_one :profile, inverse_of: :user
accepts_nested_attributes_for :profile, allow_destroy: true
end
###############################################################################
### Profile Model
###############################################################################
class Profile < ApplicationRecord
belongs_to :user, inverse_of: :profile
validates_presence_of :user
end
###############################################################################
### Users Controller
###############################################################################
class UsersController < ApplicationController
before_action :set_user, only: [:show, :edit, :update, :destroy]
# GET /users
# GET /users.json
def index
@users = User.all
end
# GET /users/1
# GET /users/1.json
def show
@user.build_profile
end
# GET /users/new
def new
@user = User.new
@user.build_profile
end
# GET /users/1/edit
def edit
@user.build_profile
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 :show, status: :created, location: @user }
else
format.html { render :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 { render :show, status: :ok, location: @user }
else
format.html { render :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, notice: 'User was successfully destroyed.' }
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, :password, :user_type_id, profile_attributes: [:id, :user_id, :first_name, :middle_name, :last_name, :phone_number, :cell_number, :email])
end
end
###############################################################################
### Form View
###############################################################################
<%= form_for(@user) do |f| %>
<% if user.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(user.errors.count, "error") %> prohibited this user from being saved:</h2>
<ul>
<% user.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
<!--<li><%= debug f %></li>-->
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :username %>
<%= f.text_field :username %>
</div>
<div class="field">
<%= f.label :password %>
<%= f.text_field :password %>
</div>
<div class="field">
<% if params[:trainer] == "true" %>
<%= f.label :user_type_id %>
<%= f.text_field :user_type_id, :readonly => true, :value => '2' %>
<% else %>
<%= f.label :user_type_id %>
<%= f.text_field :user_type_id, :readonly => true, :value => '1' %>
<% end %>
</div>
<h2>Account Profile</h2>
<%= f.fields_for :profile do |profile| %>
<%#= profile.inspect %>
<div>
<%= profile.label :first_name %>
<%= profile.text_field :first_name %>
</div>
<div>
<%= profile.label :middle_name %>
<%= profile.text_field :middle_name %>
</div>
<div>
<%= profile.label :last_name %>
<%= profile.text_field :last_name %>
</div>
<div>
<%= profile.label :email %>
<%= profile.text_field :email %>
</div>
<div>
<%= profile.label :phone_number %>
<%= profile.telephone_field :phone_number %>
</div>
<div>
<%= profile.label :cell_phone %>
<%= profile.telephone_field :cell_number %>
</div>
<% end %>
<div class="actions">
<%= f.submit %>
</div>
<%= debug params %>
<%= debug user %>
<%= debug user.profile %>
<% end %>
似乎没有解决方案，因为没有人提供帮助，我会认为它是一个错误。当系统让我的时候，我会为此付出代价。 –