Sha256: 9eb81ced54efba09ee2b9029af4a60bbb4423ad25a933e866ed8747ec144e105
Contents?: true
Size: 697 Bytes
Versions: 5
Compression:
Stored size: 697 Bytes
Contents
class ParentDoc
include Mongoid::Document
embeds_many :child_docs
field :statistic
field :children_order, :type => Array, :default => [] # hold all the children's id
end
class ChildDoc
include Mongoid::Document
embedded_in :parent_doc, :inverse_of => :child_docs
attr_writer :position
after_save :update_position
def position
exsited_position = parent_doc.children_order.index(id)
exsited_position ? exsited_position + 1 : parent_doc.aspects.size
end
def update_position
if @position && (@position.to_i > 0)
parent_doc.children_order.delete(id)
parent_doc.children_order.insert(@position.to_i - 1, id)
parent_doc.save
end
end
end
Version data entries
5 entries across 5 versions & 2 rubygems