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我在嘗試理解Mongoid如何排序時遇到了一些問題。我有2個模型,Gig和Venue,它們都通過belongs_to has_many關係關聯。通過其關聯模型的屬性對Mongoid對象排序
我想通過Venue對象的屬性'名稱'來排序Gig的對象無濟於事。
我希望有人能夠指出我正確的方向。
下面是截斷的模型描述。
我的查詢也低於:
# Gig Model
class Gig
include Mongoid::Document
include Mongoid::Paperclip
include SearchMagic
belongs_to :owner, :class_name => "User", :inverse_of => :owns
belongs_to :venue
has_and_belongs_to_many :attenders, :class_name => "User", :inverse_of => :attending
has_and_belongs_to_many :artistes
<snip>
end
# Venue Model
class Venue
include Mongoid::Document
include Mongoid::Paperclip
include SearchMagic
has_many :gigs
field :foursquare_id, type: String
embeds_one :address
embeds_many :user_ratings
field :facebook, type: String
field :twitter, type: String
field :website, type: String
field :name, type: String
field :postal, type: String
field :tel, type: String
field :venue_type, type: String
field :description, type: String
field :rating, type: Float, default: 0.0
<snip>
end
# Console
>> Gig.desc('venue.name').map{|f| f.venue.name}
=> ["*SCAPE", "Velvet Underground", "Blujaz Lounge", "Velvet Underground", "Home Club", "Wh
ite House, Emily Hill", "Zouk", "Zouk", "The Pigeonhole", "Home Club", "Home Club", "Home C
lub"]
# sorting doesn't work