#
# 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
class OldRelation < ApplicationRecord
include ConsistencyValidations
- include ObjectMetadata
self.table_name = "relations"
- self.primary_keys = "relation_id", "version"
- # note this needs to be included after the table name changes, or
+ # NOTE: this needs to be included after the table name changes, or
# the queries generated by Redactable will use the wrong table name.
include Redactable
belongs_to :changeset
- belongs_to :redaction
- belongs_to :current_relation, :class_name => "Relation", :foreign_key => "relation_id"
+ belongs_to :redaction, :optional => true
+ 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, :presence => true, :associated => true
+ validates :changeset, :associated => true
validates :timestamp, :presence => true
validates :visible, :inclusion => [true, false]
end
def tags
- @tags ||= Hash[old_tags.collect { |t| [t.k, t.v] }]
+ @tags ||= old_tags.to_h { |t| [t.k, t.v] }
end
attr_writer :members, :tags
- def to_xml
- doc = OSM::API.new.get_xml_doc
- doc.root << to_xml_node
- doc
- end
-
- def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
- el = XML::Node.new "relation"
- el["id"] = relation_id.to_s
-
- add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
-
- old_members.each do |member|
- member_el = XML::Node.new "member"
- member_el["type"] = member.member_type.to_s.downcase
- member_el["ref"] = member.member_id.to_s # "id" is considered uncool here as it should be unique in XML
- member_el["role"] = member.member_role.to_s
- el << member_el
- end
-
- add_tags_to_xml_node(el, old_tags)
-
- el
- end
-
# Temporary method to match interface to relations
def relation_members
old_members
# 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