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# File 'lib/mongoid_ext/versioning.rb', line 106
def version_klass
parent_klass = self
@version_klass ||= Class.new do
include Mongoid::Document
include Mongoid::Timestamps
cattr_accessor :parent_class
self.parent_class = parent_klass
self.storage_options = {
:collection => "#{self.parent_class.collection_name}.versions"
}
field :message, :type => String
field :data, :type => Hash
belongs_to :owner, :class_name => parent_klass.versionable_options[:user_class]
belongs_to :target, :polymorphic => true
after_create :add_version
validates_presence_of :target_id
def content(key)
cdata = self.data[key.to_s]
if cdata.respond_to?(:join)
cdata.join(" ")
else
cdata || ""
end
end
private
def add_version
self.class.parent_class.push({:_id => self.target_id}, {:version_ids => self.id})
self.class.parent_class.increment({:_id => self.target_id}, {:versions_count => 1})
end
end
end
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