require 'xml/libxml'
include ConsistencyValidations
-
- set_table_name 'current_relations'
+ include NotRedactable
+
+ self.table_name = "current_relations"
belongs_to :changeset
- has_many :old_relations, :foreign_key => 'id', :order => 'version'
+ has_many :old_relations, :order => 'version'
- has_many :relation_members, :foreign_key => 'id', :order => 'sequence_id'
- has_many :relation_tags, :foreign_key => 'id'
+ has_many :relation_members, :order => 'sequence_id'
+ has_many :relation_tags
has_many :containing_relation_members, :class_name => "RelationMember", :as => :member
has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation, :extend => ObjectFinder
validates_numericality_of :changeset_id, :version, :integer_only => true
validates_associated :changeset
+ scope :visible, where(:visible => true)
+ scope :invisible, where(:visible => false)
+ scope :nodes, lambda { |*ids| joins(:relation_members).where(:current_relation_members => { :member_type => "Node", :member_id => ids }) }
+ scope :ways, lambda { |*ids| joins(:relation_members).where(:current_relation_members => { :member_type => "Way", :member_id => ids }) }
+ scope :relations, lambda { |*ids| joins(:relation_members).where(:current_relation_members => { :member_type => "Relation", :member_id => ids }) }
+
TYPES = ["node", "way", "relation"]
def self.from_xml(xml, create=false)
doc.find('//osm/relation').each do |pt|
return Relation.from_xml_node(pt, create)
end
+ raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/relation element.")
rescue LibXML::XML::Error, ArgumentError => ex
raise OSM::APIBadXMLError.new("relation", xml, ex.message)
end
def self.from_xml_node(pt, create=false)
relation = Relation.new
- if !create and pt['id'] != '0'
+ raise OSM::APIBadXMLError.new("relation", pt, "Version is required when updating") unless create or not pt['version'].nil?
+ relation.version = pt['version']
+ raise OSM::APIBadXMLError.new("relation", pt, "Changeset id is missing") if pt['changeset'].nil?
+ relation.changeset_id = pt['changeset']
+
+ unless create
+ raise OSM::APIBadXMLError.new("relation", pt, "ID is required when updating") if pt['id'].nil?
relation.id = pt['id'].to_i
+ # .to_i will return 0 if there is no number that can be parsed.
+ # We want to make sure that there is no id with zero anyway
+ raise OSM::APIBadUserInput.new("ID of relation cannot be zero when updating.") if relation.id == 0
end
+
+ # We don't care about the timestamp nor the visibility as these are either
+ # set explicitly or implicit in the action. The visibility is set to true,
+ # and manually set to false before the actual delete.
+ relation.visible = true
- raise OSM::APIBadXMLError.new("relation", pt, "You are missing the required changeset in the relation") if pt['changeset'].nil?
- relation.changeset_id = pt['changeset']
-
- # The follow block does not need to be executed because they are dealt with
- # in create_with_history, update_from and delete_with_history
- if create
- relation.timestamp = Time.now.getutc
- relation.visible = true
- relation.version = 0
- else
- if pt['timestamp']
- relation.timestamp = Time.parse(pt['timestamp'])
- end
- relation.version = pt['version']
- end
+ # Start with no tags
+ relation.tags = Hash.new
+ # Add in any tags from the XML
pt.find('tag').each do |tag|
+ raise OSM::APIBadXMLError.new("relation", pt, "tag is missing key") if tag['k'].nil?
+ raise OSM::APIBadXMLError.new("relation", pt, "tag is missing value") if tag['v'].nil?
relation.add_tag_keyval(tag['k'], tag['v'])
end
+ # need to initialise the relation members array explicitly, as if this
+ # isn't done for a new relation then @members attribute will be nil,
+ # and the members will be loaded from the database instead of being
+ # empty, as intended.
+ relation.members = Array.new
+
pt.find('member').each do |member|
#member_type =
logger.debug "each member"
return el1
end
- def self.find_for_nodes(ids, options = {})
- if ids.empty?
- return []
- else
- self.with_scope(:find => { :joins => "INNER JOIN current_relation_members AS crm ON crm.id = current_relations.id", :conditions => "crm.member_type = 'Node' AND crm.member_id IN (#{ids.join(',')})" }) do
- return self.find(:all, options)
- end
- end
- end
-
- def self.find_for_ways(ids, options = {})
- if ids.empty?
- return []
- else
- self.with_scope(:find => { :joins => "INNER JOIN current_relation_members AS crm ON crm.id = current_relations.id", :conditions => "crm.member_type = 'Way' AND crm.member_id IN (#{ids.join(',')})" }) do
- return self.find(:all, options)
- end
- end
- end
-
- def self.find_for_relations(ids, options = {})
- if ids.empty?
- return []
- else
- self.with_scope(:find => { :joins => "INNER JOIN current_relation_members AS crm ON crm.id = current_relations.id", :conditions => "crm.member_type = 'Relation' AND crm.member_id IN (#{ids.join(',')})" }) do
- return self.find(:all, options)
- end
- end
- end
-
# FIXME is this really needed?
def members
unless @members
self.lock!
check_consistency(self, new_relation, user)
# This will check to see if this relation is used by another relation
- rel = RelationMember.find(:first, :joins => :relation,
- :conditions => [ "visible = ? AND member_type='Relation' and member_id=? ", true, self.id ])
+ rel = RelationMember.joins(:relation).where("visible = ? AND member_type = 'Relation' and member_id = ? ", true, self.id).first
raise OSM::APIPreconditionFailedError.new("The relation #{new_relation.id} is used in relation #{rel.relation.id}.") unless rel.nil?
self.changeset_id = new_relation.changeset_id
# use reflection to look up the appropriate class
model = Kernel.const_get(m[0].capitalize)
# get the element with that ID
- element = model.find(:first, :conditions =>["id = ?", m[1]])
+ element = model.where(:id => m[1]).first
# and check that it is OK to use.
unless element and element.visible? and element.preconditions_ok?
# if there are left-over tags then they are new and will have to
# be added.
tags_changed |= (not tags.empty?)
- RelationTag.delete_all(:id => self.id)
+ RelationTag.delete_all(:relation_id => self.id)
self.tags.each do |k,v|
tag = RelationTag.new
+ tag.relation_id = self.id
tag.k = k
tag.v = v
- tag.id = self.id
tag.save!
end
# members may be in a different order and i don't feel like implementing
# a longest common subsequence algorithm to optimise this.
members = self.members
- RelationMember.delete_all(:id => self.id)
+ RelationMember.delete_all(:relation_id => self.id)
members.each_with_index do |m,i|
mem = RelationMember.new
- mem.id = [self.id, i]
+ mem.relation_id = self.id
+ mem.sequence_id = i
mem.member_type = m[0]
mem.member_id = m[1]
mem.member_role = m[2]
projects / rails.git / blobdiff