# in the hash to be overwritten.
raise OSM::APIDuplicateTagsError.new("way", self.id, k) if @tags.include? k
- # check tag size here, as we don't create a WayTag object until
- # just before we save...
- raise OSM::APIBadUserInput.new("Way #{self.id} has a tag with too long a key, '#{k}'.") if k.length > 255
- raise OSM::APIBadUserInput.new("Way #{self.id} has a tag with too long a value, '#{k}'='#{v}'.") if v.length > 255
-
@tags[k] = v
end
if self.nds.length > APP_CONFIG['max_number_of_way_nodes']
raise OSM::APITooManyWayNodesError.new(self.nds.length, APP_CONFIG['max_number_of_way_nodes'])
end
-
- # pre-set all the old nodes to OK, as we must have checked them before.
- checked = old_nodes.inject(Hash.new) {|h,n| h[n] = true; h }
-
- self.nds.each do |n|
- unless checked.key? n
- node = Node.find(:first, :conditions => ["id = ?", n])
- unless node and node.visible
- raise OSM::APIPreconditionFailedError.new("Way #{self.id} requires the node with id #{n}, which either does not exist, or is not visible.")
- end
- checked[n] = true
+
+ # check only the new nodes, for efficiency - old nodes having been checked last time and can't
+ # be deleted when they're in-use.
+ new_nds = (self.nds - old_nodes).sort.uniq
+
+ unless new_nds.empty?
+ db_nds = Node.find(:all, :conditions => { :id => new_nds, :visible => true })
+
+ if db_nds.length < new_nds.length
+ missing = new_nds - db_nds.collect { |n| n.id }
+ raise OSM::APIPreconditionFailedError.new("Way #{self.id} requires the nodes with id in (#{missing.join(',')}), which either do not exist, or are not visible.")
end
end
+
return true
end