#
# Table name: relations
#
-# relation_id :bigint(8) default(0), not null, primary key
+# relation_id :bigint(8) not null, primary key
# changeset_id :bigint(8) not null
# timestamp :datetime not null
# version :bigint(8) not null, primary key
include ConsistencyValidations
self.table_name = "relations"
- self.primary_keys = "relation_id", "version"
# NOTE: this needs to be included after the table name changes, or
# the queries generated by Redactable will use the wrong table name.
belongs_to :changeset
belongs_to :redaction, :optional => true
- belongs_to :current_relation, :class_name => "Relation", :foreign_key => "relation_id"
+ belongs_to :current_relation, :class_name => "Relation", :foreign_key => "relation_id", :inverse_of => :old_relations
- has_many :old_members, -> { order(:sequence_id) }, :class_name => "OldRelationMember", :foreign_key => [:relation_id, :version]
- has_many :old_tags, :class_name => "OldRelationTag", :foreign_key => [:relation_id, :version]
+ has_many :old_members, -> { order(:sequence_id) }, :class_name => "OldRelationMember", :query_constraints => [:relation_id, :version], :inverse_of => :old_relation
+ has_many :old_tags, :class_name => "OldRelationTag", :query_constraints => [:relation_id, :version], :inverse_of => :old_relation
validates :changeset, :associated => true
validates :timestamp, :presence => true
# check whether this element is the latest version - that is,
# has the same version as its "current" counterpart.
- def is_latest_version?
+ def latest_version?
current_relation.version == version
end
end