include GeoRecord
include ConsistencyValidations
+ include NotRedactable
+ include ObjectMetadata
- set_table_name 'current_nodes'
+ self.table_name = "current_nodes"
belongs_to :changeset
- has_many :old_nodes, :foreign_key => :id
+ has_many :old_nodes, -> { order(:version) }
has_many :way_nodes
has_many :ways, :through => :way_nodes
- has_many :node_tags, :foreign_key => :id
-
+ has_many :node_tags
+
has_many :old_way_nodes
has_many :ways_via_history, :class_name=> "Way", :through => :old_way_nodes, :source => :way
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
+ has_many :containing_relations, :class_name => "Relation", :through => :containing_relation_members, :source => :relation
validates_presence_of :id, :on => :update
validates_presence_of :timestamp,:version, :changeset_id
validate :validate_position
validates_associated :changeset
+ scope :visible, -> { where(:visible => true) }
+ scope :invisible, -> { where(:visible => false) }
+
# Sanity check the latitude and longitude and add an error if it's broken
def validate_position
- errors.add_to_base("Node is not in the world") unless in_world?
- end
-
- #
- # Search for nodes matching tags within bounding_box
- #
- # Also adheres to limitations such as within max_number_of_nodes
- #
- def self.search(bounding_box, tags = {})
- min_lon, min_lat, max_lon, max_lat = *bounding_box
- # @fixme a bit of a hack to search for only visible nodes
- # couldn't think of another to add to tags condition
- #conditions_hash = tags.merge({ 'visible' => 1 })
-
- # using named placeholders http://www.robbyonrails.com/articles/2005/10/21/using-named-placeholders-in-ruby
- #keys = []
- #values = {}
-
- #conditions_hash.each do |key,value|
- # keys << "#{key} = :#{key}"
- # values[key.to_sym] = value
- #end
- #conditions = keys.join(' AND ')
-
- find_by_area(min_lat, min_lon, max_lat, max_lon,
- :conditions => {:visible => true},
- :limit => APP_CONFIG['max_number_of_nodes']+1)
+ errors.add(:base, "Node is not in the world") unless in_world?
end
# Read in xml as text and return it's Node object representation
doc.find('//osm/node').each do |pt|
return Node.from_xml_node(pt, create)
end
+ raise OSM::APIBadXMLError.new("node", xml, "XML doesn't contain an osm/node element.")
rescue LibXML::XML::Error, ArgumentError => ex
raise OSM::APIBadXMLError.new("node", xml, ex.message)
end
def self.from_xml_node(pt, create=false)
node = Node.new
-
+
raise OSM::APIBadXMLError.new("node", pt, "lat missing") if pt['lat'].nil?
raise OSM::APIBadXMLError.new("node", pt, "lon missing") if pt['lon'].nil?
- node.lat = pt['lat'].to_f
- node.lon = pt['lon'].to_f
- raise OSM::APIBadXMLError.new("node", pt, "changeset id missing") if pt['changeset'].nil?
+ node.lat = OSM.parse_float(pt['lat'], OSM::APIBadXMLError, "node", pt, "lat not a number")
+ node.lon = OSM.parse_float(pt['lon'], OSM::APIBadXMLError, "node", pt, "lon not a number")
+ raise OSM::APIBadXMLError.new("node", pt, "Changeset id is missing") if pt['changeset'].nil?
node.changeset_id = pt['changeset'].to_i
raise OSM::APIBadUserInput.new("The node is outside this world") unless node.in_world?
node.version = create ? 0 : pt['version'].to_i
unless create
- if pt['id'] != '0'
- node.id = pt['id'].to_i
- end
+ raise OSM::APIBadXMLError.new("node", pt, "ID is required when updating.") if pt['id'].nil?
+ node.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 node cannot be zero when updating.") if node.id == 0
end
- # visible if it says it is, or as the default if the attribute
- # is missing.
- # Don't need to set the visibility, when it is set explicitly in the create/update/delete
- #node.visible = pt['visible'].nil? or pt['visible'] == 'true'
-
# We don't care about the time, as it is explicitly set on create/update/delete
+ # We don't care about the visibility as it is implicit based on the action
+ # and set manually before the actual delete
+ node.visible = true
- tags = []
+ # Start with no tags
+ node.tags = Hash.new
+ # Add in any tags from the XML
pt.find('tag').each do |tag|
+ raise OSM::APIBadXMLError.new("node", pt, "tag is missing key") if tag['k'].nil?
+ raise OSM::APIBadXMLError.new("node", pt, "tag is missing value") if tag['v'].nil?
node.add_tag_key_val(tag['k'],tag['v'])
end
# the bounding box around a node, which is used for determining the changeset's
# bounding box
def bbox
- [ longitude, latitude, longitude, latitude ]
+ BoundingBox.new(longitude, latitude, longitude, latitude)
end
# Should probably be renamed delete_from to come in line with update
raise OSM::APIAlreadyDeletedError.new("node", new_node.id)
end
- # need to start the transaction here, so that the database can
+ # need to start the transaction here, so that the database can
# provide repeatable reads for the used-by checks. this means it
# shouldn't be possible to get race conditions.
Node.transaction do
+ self.lock!
check_consistency(self, new_node, user)
- way = WayNode.find(:first, :joins => "INNER JOIN current_ways ON current_ways.id = current_way_nodes.id",
- :conditions => [ "current_ways.visible = ? AND current_way_nodes.node_id = ?", true, self.id ])
- raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by way #{way.id}.") unless way.nil?
-
- rel = RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id",
- :conditions => [ "visible = ? AND member_type='Node' and member_id=? ", true, self.id])
- raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by relation #{rel.id}.") unless rel.nil?
+ ways = Way.joins(:way_nodes).where(:visible => true, :current_way_nodes => { :node_id => id }).order(:id)
+ raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by ways #{ways.collect { |w| w.id }.join(",")}.") unless ways.empty?
+
+ rels = Relation.joins(:relation_members).where(:visible => true, :current_relation_members => { :member_type => "Node", :member_id => id }).order(:id)
+ raise OSM::APIPreconditionFailedError.new("Node #{self.id} is still used by relations #{rels.collect { |r| r.id }.join(",")}.") unless rels.empty?
self.changeset_id = new_node.changeset_id
+ self.tags = {}
self.visible = false
-
+
# update the changeset with the deleted position
changeset.update_bbox!(bbox)
-
+
save_with_history!
end
end
def update_from(new_node, user)
- check_consistency(self, new_node, user)
+ Node.transaction do
+ self.lock!
+ check_consistency(self, new_node, user)
- # update changeset first
- self.changeset_id = new_node.changeset_id
- self.changeset = new_node.changeset
+ # update changeset first
+ self.changeset_id = new_node.changeset_id
+ self.changeset = new_node.changeset
- # update changeset bbox with *old* position first
- changeset.update_bbox!(bbox);
+ # update changeset bbox with *old* position first
+ changeset.update_bbox!(bbox);
- # FIXME logic needs to be double checked
- self.latitude = new_node.latitude
- self.longitude = new_node.longitude
- self.tags = new_node.tags
- self.visible = true
+ # FIXME logic needs to be double checked
+ self.latitude = new_node.latitude
+ self.longitude = new_node.longitude
+ self.tags = new_node.tags
+ self.visible = true
- # update changeset bbox with *new* position
- changeset.update_bbox!(bbox);
+ # update changeset bbox with *new* position
+ changeset.update_bbox!(bbox);
- save_with_history!
+ save_with_history!
+ end
end
-
+
def create_with_history(user)
check_create_consistency(self, user)
self.version = 0
end
def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
- el1 = XML::Node.new 'node'
- el1['id'] = self.id.to_s
- el1['lat'] = self.lat.to_s
- el1['lon'] = self.lon.to_s
- 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]
+ el = XML::Node.new 'node'
+ el['id'] = self.id.to_s
- 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
+ add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
- if not user_display_name_cache[user_id].nil?
- el1['user'] = user_display_name_cache[user_id]
- el1['uid'] = user_id.to_s
+ if self.visible?
+ el['lat'] = self.lat.to_s
+ el['lon'] = self.lon.to_s
end
- self.tags.each do |k,v|
- el2 = XML::Node.new('tag')
- el2['k'] = k.to_s
- el2['v'] = v.to_s
- el1 << el2
- end
+ add_tags_to_xml_node(el, self.node_tags)
- el1['visible'] = self.visible.to_s
- el1['timestamp'] = self.timestamp.xmlschema
- return el1
+ return el
end
def tags_as_hash
end
def tags
- unless @tags
- @tags = {}
- self.node_tags.each do |tag|
- @tags[tag.k] = tag.v
- end
- end
- @tags
+ @tags ||= Hash[self.node_tags.collect { |t| [t.k, t.v] }]
end
def tags=(t)
- @tags = t
- end
+ @tags = t
+ end
def add_tag_key_val(k,v)
@tags = Hash.new unless @tags
def fix_placeholders!(id_map, placeholder_id = nil)
# nodes don't refer to anything, so there is nothing to do here
end
-
+
private
def save_with_history!
# Create a NodeTag
tags = self.tags
- NodeTag.delete_all(['id = ?', self.id])
+ NodeTag.delete_all(:node_id => self.id)
tags.each do |k,v|
tag = NodeTag.new
- tag.k = k
- tag.v = v
- tag.id = self.id
+ tag.node_id = self.id
+ tag.k = k
+ tag.v = v
tag.save!
- end
+ end
# Create an OldNode
old_node = OldNode.from_node(self)
changeset.save!
end
end
-
+
end
projects / rails.git / blobdiff