Module: MongoidExt::Versioning::ClassMethods
- Defined in:
- lib/mongoid_ext/versioning.rb
Instance Method Summary collapse
- #version_klass ⇒ Object
-
#versionable_keys(*keys) ⇒ Object
example: class Foo include Mongoid::Document include MongoidExt::Versioning versionable_keys :field1, :field2, :field3, :user_class => “Customer”, :owner_field => “updated_by_id” …
Instance Method Details
#version_klass ⇒ Object
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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. = { :collection => "#{self.parent_class.collection_name}.versions" } field :message, :type => String field :data, :type => Hash belongs_to :owner, :class_name => parent_klass.[: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 |
#versionable_keys(*keys) ⇒ Object
example:
class Foo
include Mongoid::Document
include MongoidExt::Versioning
versionable_keys :field1, :field2, :field3, :user_class => "Customer", :owner_field => "updated_by_id"
...
end
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# File 'lib/mongoid_ext/versioning.rb', line 155 def versionable_keys(*keys) self. = keys. self.[:owner_field] ||= "user_id" self.[:owner_field] = self.[:owner_field].to_s relationship = self.relations[self.[:owner_field].sub(/_id$/, "")] if !relationship raise ArgumentError, "the supplied :owner_field => #{self.[:owner_field].inspect} option is invalid" end self.[:user_class] = relationship.class_name define_method(:save_version) do data = {} = "" keys.each do |key| if change = changes[key.to_s] data[key.to_s] = change.first else data[key.to_s] = self[key] end end if = self.changes["version_message"] = .first else = "" end uuser_id = send(self.[:owner_field]+"_was")||send(self.[:owner_field]) if !self.new_record? && !data.empty? && uuser_id max_versions = self.[:max_versions].to_i if max_versions > 0 && self.version_ids.size >= max_versions old = self.version_ids.slice!(0, max_versions-1) self.class.skip_callback(:save, :before, :save_version) self.version_klass.where(:_id.in => old).delete_all self.save self.class.set_callback(:save, :before, :save_version) end self.version_klass.create!({ 'data' => data, 'owner_id' => uuser_id, 'target' => self, 'message' => }) end end define_method(:versioned_keys) do keys end end |