class OldRelation < ActiveRecord::Base
include ConsistencyValidations
- set_table_name 'relations'
+ 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.
+ include Redactable
belongs_to :changeset
+ belongs_to :redaction
+ belongs_to :current_relation, :class_name => "Relation", :foreign_key => "relation_id"
+
+ 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]
+
+ validates_associated :changeset
def self.from_relation(relation)
old_relation = OldRelation.new
old_relation.visible = relation.visible
old_relation.changeset_id = relation.changeset_id
old_relation.timestamp = relation.timestamp
- old_relation.id = relation.id
+ old_relation.relation_id = relation.id
old_relation.version = relation.version
old_relation.members = relation.members
old_relation.tags = relation.tags
save!
clear_aggregation_cache
clear_association_cache
- @attributes.update(OldRelation.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp]).instance_variable_get('@attributes'))
+ @attributes.update(OldRelation.where(:relation_id => self.relation_id, :timestamp => self.timestamp).order("version DESC").first.instance_variable_get('@attributes'))
# ok, you can touch from here on
tag = OldRelationTag.new
tag.k = k
tag.v = v
- tag.id = self.id
+ tag.relation_id = self.relation_id
tag.version = self.version
tag.save!
end
- i = 1
- self.members.each do |m|
+ self.members.each_with_index do |m,i|
member = OldRelationMember.new
- member.id = self.id
- member.member_type = m[0]
+ member.id = [self.relation_id, self.version, i]
+ member.member_type = m[0].classify
member.member_id = m[1]
member.member_role = m[2]
- member.version = self.version
member.save!
end
end
def members
unless @members
- @members = Array.new
- OldRelationMember.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version]).each do |m|
- @members += [[m.type,m.id,m.role]]
- end
+ @members = Array.new
+ OldRelationMember.where(:relation_id => self.relation_id, :version => self.version).order(:sequence_id).each do |m|
+ @members += [[m.type,m.id,m.role]]
+ end
end
@members
end
def tags
unless @tags
- @tags = Hash.new
- OldRelationTag.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version]).each do |tag|
- @tags[tag.k] = tag.v
- end
+ @tags = Hash.new
+ OldRelationTag.where(:relation_id => self.relation_id, :version => self.version).each do |tag|
+ @tags[tag.k] = tag.v
+ end
end
@tags = Hash.new unless @tags
@tags
@tags = t
end
-# has_many :relation_segments, :class_name => 'OldRelationSegment', :foreign_key => 'id'
-# has_many :relation_tags, :class_name => 'OldRelationTag', :foreign_key => 'id'
-
- def old_members
- OldRelationMember.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version])
- end
-
- def old_tags
- OldRelationTag.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version])
- end
-
def to_xml
doc = OSM::API.new.get_xml_doc
doc.root << to_xml_node()
return doc
end
- def to_xml_node
+ def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
el1 = XML::Node.new 'relation'
- el1['id'] = self.id.to_s
+ el1['id'] = self.relation_id.to_s
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
- if self.changeset.user.data_public?
- el1['user'] = self.changeset.user.display_name
- el1['uid'] = self.changeset.user.id.to_s
- end
el1['version'] = self.version.to_s
el1['changeset'] = self.changeset_id.to_s
+
+ if changeset_cache.key?(self.changeset_id)
+ # use the cache if available
+ else
+ changeset_cache[self.changeset_id] = self.changeset.user_id
+ end
+
+ user_id = changeset_cache[self.changeset_id]
+
+ if user_display_name_cache.key?(user_id)
+ # use the cache if available
+ elsif self.changeset.user.data_public?
+ user_display_name_cache[user_id] = self.changeset.user.display_name
+ else
+ user_display_name_cache[user_id] = nil
+ end
+
+ if not user_display_name_cache[user_id].nil?
+ el1['user'] = user_display_name_cache[user_id]
+ el1['uid'] = user_id.to_s
+ end
+
+ el1['redacted'] = self.redaction.id.to_s if self.redacted?
self.old_members.each do |member|
e = XML::Node.new 'member'
- e['type'] = member.member_type.to_s
+ e['type'] = member.member_type.to_s.downcase
e['ref'] = member.member_id.to_s # "id" is considered uncool here as it should be unique in XML
e['role'] = member.member_role.to_s
el1 << e
end
-
+
self.old_tags.each do |tag|
e = XML::Node.new 'tag'
e['k'] = tag.k
e['v'] = tag.v
el1 << e
end
+
return el1
end
def containing_relation_members
return []
end
+
+ # check whether this element is the latest version - that is,
+ # has the same version as its "current" counterpart.
+ def is_latest_version?
+ current_relation.version == self.version
+ end
end
projects / rails.git / blobdiff