未写入数据库的多态嵌套属性

我的应用程序将代码写入数据库时出现问题。我可以在参数中看到它，但它在提交表单后不会在数据库中看到它。未写入数据库的多态嵌套属性

我创建了一个我想添加到课程对象中的地址对象。

型号

class Course < ActiveRecord::Base 
    has_one :address, :as => :addressable 
    accepts_nested_attributes_for :address 
    // more code 
end 

class Address < ActiveRecord::Base 
    belongs_to :addressable, :polymorphic => true 
end

控制器

class CoursesController < ApplicationController 
    def course_params 
    params.require(:course).permit(:short_description, :picture, :name, :cost, :description, :occurs_at, address_attributes: [:line1, :line2, :city, :state, :zip]) 
end 

def create 
    @course = current_user.courses.build(course_params) 
    @course.build_address 
    if @course.save 
    flash[:success] = "Course created!" 
    redirect_to root_url 
    else 
    @feed_items = [] 
    render 'static_pages/home' 
    end 
end 

//No address controller

我试图build_address呼叫转移到内保存，它似乎写入数据库，但实际上没有关联的两个... ...

帮手

module FormHelper 
    def setup_course(course) 
    course.address ||= Address.new 
    course 
    end 
end

查看

<%= form_for(setup_course(@course), html: { multipart: true }) do |f| %> 
    <%= f.fields_for :address do |address| %> 
    <%= render :partial => 'shared/address', :locals => {:f => address} %> 
    <% end %> 
<% end %>

数据库控制台

Processing by CoursesController#create as HTML 
    Parameters: {"utf8"=>"✓", "authenticity_token"=>"KKDEbmm7vBFjDR6KPHn29ZbroA6FyLtkUaJhBu5kAELeL1Zs89WmonpDH8wCCqtFeiMDXxypJwsHv/ck5wbznA==", "course"=>{"name"=>"11", "short_description"=>"fdsaf0dsa3f032ds", "description"=>"f03dsaf1dsa01", "occurs_at"=>"<date>", "cost"=>"", "address_attributes"=>{"line1"=>"aa", "line2"=>"bb", "city"=>"cc", "state"=>"wa", "zip"=>"12345"}}, "commit"=>"Create Course"} 
    User Load (1.0ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT 1 [["id", 1]] 
(0.1ms) begin transaction 
SQL (0.5ms) INSERT INTO "courses" ("short_description", "name", "description", "user_id", "created_at", "updated_at") VALUES (?, ?, ?, ?, ?, ?) [["short_description", "fdsaf0dsa3f032ds"], ["name", "11"], ["description", "f03dsaf1dsa01"], ["user_id", 1], ["created_at", "2016-05-27 02:33:31.234818"], ["updated_at", "2016-05-27 02:33:31.234818"]] 
SQL (0.4ms) INSERT INTO "addresses" ("addressable_type", "addressable_id", "created_at", "updated_at") VALUES (?, ?, ?, ?) [["addressable_type", "Course"], ["addressable_id", 17], ["created_at", "2016-05-27 02:33:31.247646"], ["updated_at", "2016-05-27 02:33:31.247646"]] 
(13.6ms) commit transaction

我运行轨道4

谢谢您的帮助！

来源

2016-05-27 bralyan

什么是您的CoursesController创建的操作方法是什么样子？ – Anand

你确定吗？日志显示记录被插入到课程和地址中。 – max

我在courses_controller中添加了create。 @Anand – bralyan

问题出在Anand问的问题上。这是我的创建功能的问题。

简单的解决方法：

def create 
    @course = current_user.courses.build(course_params) 
    if @course.save 
    flash[:success] = "Course created!" 
    redirect_to root_url 
    else 
    @feed_items = [] 
    render 'static_pages/home' 
    end 
end

来源

2016-05-28 02:46:36 bralyan

未写入数据库的多态嵌套属性

回答

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