表是 # app/models/table.rb
class Table
include Mongoid::Document
end
# in app/controllers/some_controller.rb
def index
Table.connection.database = :other_database # <- How to do this ???
是否有人知道如何做Mongoid中的多态关联,这是关系有利但不是嵌入关联。 举例来说,这是我Assignment型号: class Assignment
include Mongoid::Document
include Mongoid::Timestamps
field :user
field :due_at, :type => Time
r
我有一个下面协会 Class Person
include Mongoid::Document
embeds_many :employments
end
Class Employment
include Mongoid::Document
references_many :centres
end
class Centre
include
我正在为用户编写一个快速应用程序来跟踪他们的日常账单(用于货币跟踪目的)。我希望用户能够定义账单可以适用的自己的类别。然而,我正在尝试确定建模的最佳方式,并将类别验证为唯一。 我最初的想法是这样的: class User
include Mongoid::Document
embeds_many :bills
field :categories, :type =>