def self.from_xml(xml, create=false)
begin
- p = XML::Parser.new
- p.string = xml
+ p = XML::Parser.string(xml)
doc = p.parse
doc.find('//osm/way').each do |pt|
return Way.from_xml_node(pt, create)
end
- rescue LibXML::XML::Error => ex
+ rescue LibXML::XML::Error, ArgumentError => ex
raise OSM::APIBadXMLError.new("way", xml, ex.message)
end
end
# This next section isn't required for the create, update, or delete of ways
if create
- way.timestamp = Time.now
+ way.timestamp = Time.now.getutc
way.visible = true
else
if pt['timestamp']
return doc
end
- def to_xml_node(visible_nodes = nil, user_display_name_cache = nil)
+ def to_xml_node(visible_nodes = nil, changeset_cache = {}, user_display_name_cache = {})
el1 = XML::Node.new 'way'
el1['id'] = self.id.to_s
el1['visible'] = self.visible.to_s
el1['version'] = self.version.to_s
el1['changeset'] = self.changeset_id.to_s
- user_display_name_cache = {} if user_display_name_cache.nil?
+ 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 and user_display_name_cache.key?(self.changeset.user_id)
+ if user_display_name_cache.key?(user_id)
# use the cache if available
elsif self.changeset.user.data_public?
- user_display_name_cache[self.changeset.user_id] = self.changeset.user.display_name
+ user_display_name_cache[user_id] = self.changeset.user.display_name
else
- user_display_name_cache[self.changeset.user_id] = nil
+ user_display_name_cache[user_id] = nil
end
- if not user_display_name_cache[self.changeset.user_id].nil?
- el1['user'] = user_display_name_cache[self.changeset.user_id]
- el1['uid'] = self.changeset.user_id.to_s
+ if not user_display_name_cache[user_id].nil?
+ el1['user'] = user_display_name_cache[user_id]
+ el1['uid'] = user_id.to_s
end
# make sure nodes are output in sequence_id order
def update_from(new_way, user)
check_consistency(self, new_way, user)
- if !new_way.preconditions_ok?
- raise OSM::APIPreconditionFailedError.new
+ unless new_way.preconditions_ok?
+ raise OSM::APIPreconditionFailedError.new("Cannot update way #{self.id}: data is invalid.")
end
+
self.changeset_id = new_way.changeset_id
+ self.changeset = new_way.changeset
self.tags = new_way.tags
self.nds = new_way.nds
self.visible = true
def create_with_history(user)
check_create_consistency(self, user)
- if !self.preconditions_ok?
- raise OSM::APIPreconditionFailedError.new
+ unless self.preconditions_ok?
+ raise OSM::APIPreconditionFailedError.new("Cannot create way: data is invalid.")
end
self.version = 0
self.visible = true
def preconditions_ok?
return false if self.nds.empty?
if self.nds.length > APP_CONFIG['max_number_of_way_nodes']
- raise OSM::APITooManyWayNodesError.new(self.nds.count, APP_CONFIG['max_number_of_way_nodes'])
+ raise OSM::APITooManyWayNodesError.new(self.nds.length, APP_CONFIG['max_number_of_way_nodes'])
end
self.nds.each do |n|
node = Node.find(:first, :conditions => ["id = ?", n])
unless node and node.visible
- raise OSM::APIPreconditionFailedError.new("The node with id #{n} either does not exist, or is not visible")
+ raise OSM::APIPreconditionFailedError.new("Way #{self.id} requires the node with id #{n}, which either does not exist, or is not visible.")
end
end
return true
def delete_with_history!(new_way, user)
unless self.visible
- raise OSM::APIAlreadyDeletedError
+ raise OSM::APIAlreadyDeletedError.new("way", new_way.id)
end
# need to start the transaction here, so that the database can
# shouldn't be possible to get race conditions.
Way.transaction do
check_consistency(self, new_way, user)
- if RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id",
- :conditions => [ "visible = ? AND member_type='way' and member_id=? ", true, self.id])
- raise OSM::APIPreconditionFailedError.new("You need to make sure that this way is not a member of a relation.")
- else
- self.changeset_id = new_way.changeset_id
- self.tags = []
- self.nds = []
- self.visible = false
- save_with_history!
- end
+ rel = RelationMember.find(:first, :joins => :relation,
+ :conditions => [ "visible = ? AND member_type='Way' and member_id=? ", true, self.id])
+ raise OSM::APIPreconditionFailedError.new("Way #{self.id} still used by relation #{rel.relation.id}.") if rel
+
+ self.changeset_id = new_way.changeset_id
+ self.changeset = new_way.changeset
+
+ self.tags = []
+ self.nds = []
+ self.visible = false
+ save_with_history!
end
end
- # Find nodes that belong to this way only
- def unshared_node_ids
- node_ids = self.nodes.collect { |node| node.id }
-
- unless node_ids.empty?
- way_nodes = WayNode.find(:all, :conditions => "node_id in (#{node_ids.join(',')}) and id != #{self.id}")
- node_ids = node_ids - way_nodes.collect { |way_node| way_node.node_id }
- end
-
- return node_ids
- end
-
# Temporary method to match interface to nodes
def tags_as_hash
return self.tags
# if any referenced nodes are placeholder IDs (i.e: are negative) then
# this calling this method will fix them using the map from placeholders
# to IDs +id_map+.
- def fix_placeholders!(id_map)
+ def fix_placeholders!(id_map, placeholder_id = nil)
self.nds.map! do |node_id|
if node_id < 0
new_id = id_map[:node][node_id]
- raise "invalid placeholder for #{node_id.inspect}: #{new_id.inspect}" if new_id.nil?
+ raise OSM::APIBadUserInput.new("Placeholder node not found for reference #{node_id} in way #{self.id.nil? ? placeholder_id : self.id}") if new_id.nil?
new_id
else
node_id
private
def save_with_history!
- t = Time.now
+ t = Time.now.getutc
- # update the bounding box, but don't save it as the controller knows the
- # lifetime of the change better. note that this has to be done both before
+ # update the bounding box, note that this has to be done both before
# and after the save, so that nodes from both versions are included in the
- # bbox.
- changeset.update_bbox!(bbox) unless nodes.empty?
+ # bbox. we use a copy of the changeset so that it isn't reloaded
+ # later in the save.
+ cs = self.changeset
+ cs.update_bbox!(bbox) unless nodes.empty?
Way.transaction do
self.version += 1
old_way.timestamp = t
old_way.save_with_dependencies!
+ # reload the way so that the nodes array points to the correct
+ # new set of nodes.
+ self.reload
+
# update and commit the bounding box, now that way nodes
# have been updated and we're in a transaction.
- changeset.update_bbox!(bbox) unless nodes.empty?
+ cs.update_bbox!(bbox) unless nodes.empty?
# tell the changeset we updated one element only
- changeset.add_changes! 1
+ cs.add_changes! 1
- changeset.save!
+ cs.save!
end
end
projects / rails.git / blobdiff