1. 设置accepts_nested_attributes_for 在你的父模型中,确保你已经设置了accepts_nested_attributes_for。 代码语言:txt 复制 class ParentModel < ApplicationRecord has_many :child_models accepts_nested_attributes_for :child_models, allo
在Rails 3中,使用Rspec测试`accepts_nested_attributes_for`关联的方法如下: 1. 首先,确保已经安装了`rspec-rails`和`factory_girl...
http://blog.csdn.net/kunshan_shenbin/article/details/7249713http://api.rubyonrails.org/classes/ActionView/Helpers/FormBuilder.html#method-i-fields_forhttp://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html#method-i-accepts_nested_attributes_for 还在为表单嵌套而苦恼么,看看accep...
要实现在新建和修改blog时可以添加/删除任意多个strip_rule 我们用rails中得 accepts_nested_attributes_for实现这个功能。 新建和修改页面调用模板页面_form.html.erb #form页面主要实现代码 <%= f.fields_for:strip_rulesdo|strip_rule| %> <%= render"strip_rule",:f=> strip_rule %> <%end%> <%= raw...
什么是正确的发送方式engine_attributes到 Controller ? (汽车accepts_nested_attributes_for :engine,所以它期望engine_attributes。)我是否覆盖主干sync()?嵌套模型是否有更好的约定? 也许我不应该从 Controller 返回嵌套模型,或者返回engine_attributes而不是engine?
accepts_nested_attributes_for:trigger accepts_nested_attributes_for:actions end classTrigger< ApplicationRecord belongs_to:rule enumname:[:example] end classActions< ApplicationRecord belongs_to:rule enumname:[:example] end classFormsController< ApplicationController ...
accepts_nested_attributes_for:task_activities attr_accessor:tasks_attributes end ... classTaskActivity< ApplicationRecord belongs_to:task belongs_to:activity belongs_to:instantiation_operator end ... classActivity< ApplicationRecord belongs_to:software_process ...
accepts_nested_attributes_for :albums end #photo model (not up to there yet) class Photo < ActiveRecord::Base belongs_to :album end 配置/路由 1 2 3 4 5 6 7 8 9 10 Pholder::Application.routes.draw do resources :users do resources :albums ...
accepts_nested_attributes_for:address,allow_destroy:true Now if you tried to remove both the Address and MailAddress from a Location, you would get an error, as expected. But what if we didn’t want to use nested forms, or what if we were building a RESTful API that would allow...
accepts_nested_attributes_for :photos end 然后,controller中的代码就可以被简化为: AlbumsController def create album = Album.new params[:album] ... 从这个例子中可以看到Rails在推进MVC三部分之间职责明确上所做的努力和进步。很多人可能会说,我们的代码没有这样的问题。但MVC三部分之间职责开始模糊,往往出现...