标签：style class blog code http ext
http://blog.csdn.net/kunshan_shenbin/article/details/7249713 http://api.rubyonrails.org/classes/ActionView/Helpers/FormBuilder.html#method-i-fields_for http://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accepts_nested_attributes_for方法吧,今天在项目里用过之后,更爱这门语言了.
# eoncoding: UTF-8 class Package include Mongoid::Document include Mongoid::Timestamps include ImageUploadable store_in collection: ‘all_apps‘ field :language, type: String, default: ‘中文‘ field :url, as: :download_url, type: String //as别名 field :intro_icons, type: Array, default: [] field :updated_on, type: Date field :is_actived, type: Boolean, default: false field :position, type: Integer, default: 0 field :is_deleted, type: Boolean, default: false index code: 1 //索引 index package: 1 has_many :recommend_apps, foreign_key: ‘app_id‘ accepts_nested_attributes_for :recommend_apps
class RecommendApp include Mongoid::Document include Mongoid::Timestamps include ImageUploadable validates :app_id, presence: true validates :type, inclusion: { in: TYPES.keys } validates :app_id, uniqueness: { scope: :type } belongs_to :package, foreign_key: ‘app_id‘
<%= form_for @recommend_app, html: { class: package_form_class(@recommend_app), role: ‘form‘ } do |f| %>
<div class="form-group">
<%= f.label :position, "推荐位置", class: "col-sm-2 control-label" %>
<div class="col-sm-3">
<%= f.text_field :position,:class =>"form-control" %>
</div>
</div>
<%= fields_for :package do |package| %>
<div class="form-group">
<%= package.label :title, "名称", class: "col-sm-2 control-label" %>
<div class="col-sm-3">
<%= package.text_field :title ,:class =>"form-control" %>
</div>
</div>
<% end %>
recommend_apps_controller.rb
def edit @package = @recommend_app.package end def update old_position = @recommend_app.position if @recommend_app.update_attributes recommend_app_params @package = @recommend_app.package if @package.update_attributes package_params @recommend_app.adjust_recommend_app_position(@recommend_app.position) redirect_to recommend_apps_path, notice: ‘操作成功‘ end else render :edit end end
fields_for(record_name, record_object = nil, fields_options = {}, &block)
可以看下下面的文档
http://api.rubyonrails.org/classes/ActionView/Helpers/FormBuilder.html#method-i-fields_for
Rails accepts_nested_attributes_for表单嵌套的利器,布布扣,bubuko.com
Rails accepts_nested_attributes_for表单嵌套的利器
标签：style class blog code http ext
原文地址：http://www.cnblogs.com/iwangzheng/p/3800124.html
