# also removes ways/nodes from any relations they're in
# out: [0] 0 (success), [1] way id (unchanged)
def deleteway(args) #:doc:
-
- usertoken,way=args
-
- RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way}")
+ usertoken,way_id=args
+ RAILS_DEFAULT_LOGGER.info(" Message: deleteway, id=#{way_id}")
uid=getuserid(usertoken)
if !uid then return -1,"You are not logged in, so the way could not be deleted." end
- way=way.to_i
- db_uqn='unin'+(rand*100).to_i.to_s+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # temp uniquenodes table name, typically 51 chars
- db_now='@now'+(rand*100).to_i.to_s+uid.to_s+way.to_i.abs.to_s+Time.new.to_i.to_s # 'now' variable name, typically 51 chars
- ActiveRecord::Base.connection.execute("SET #{db_now}=NOW()")
-
- # - delete any otherwise unused nodes
-
- createuniquenodes(way,db_uqn,[])
+ user = User.find(uid)
- # unless (preserve.empty?) then
- # ActiveRecord::Base.connection.execute("DELETE FROM #{db_uqn} WHERE node_id IN ("+preserve.join(',')+")")
- # end
+ way = Way.find(way_id)
- sql=<<-EOF
- INSERT INTO nodes (id,latitude,longitude,timestamp,user_id,visible,tile)
- SELECT DISTINCT cn.id,cn.latitude,cn.longitude,#{db_now},#{uid},0,cn.tile
- FROM current_nodes AS cn,#{db_uqn}
- WHERE cn.id=node_id
- EOF
- ActiveRecord::Base.connection.insert(sql)
+ way.delete_with_relations_and_nodes_and_history(user)
- sql=<<-EOF
- UPDATE current_nodes AS cn, #{db_uqn}
- SET cn.timestamp=#{db_now},cn.visible=0,cn.user_id=#{uid}
- WHERE cn.id=node_id
- EOF
- ActiveRecord::Base.connection.update(sql)
-
- deleteuniquenoderelations(db_uqn,uid,db_now)
- ActiveRecord::Base.connection.execute("DROP TEMPORARY TABLE #{db_uqn}")
-
- # - delete way
-
- ActiveRecord::Base.connection.insert("INSERT INTO ways (id,user_id,timestamp,visible) VALUES (#{way},#{uid},#{db_now},0)")
- ActiveRecord::Base.connection.update("UPDATE current_ways SET user_id=#{uid},timestamp=#{db_now},visible=0 WHERE id=#{way}")
- ActiveRecord::Base.connection.execute("DELETE FROM current_way_nodes WHERE id=#{way}")
- ActiveRecord::Base.connection.execute("DELETE FROM current_way_tags WHERE id=#{way}")
- deleteitemrelations(way,'way',uid,db_now)
- [0,way]
+ return [0,way_id]
end
def readwayquery(id,insistonvisible) #:doc:
end
# delete a way and it's nodes that aren't part of other ways, with history
- # WARNING, INCOMPLETE - Read the code
def delete_with_relations_and_nodes_and_history(user)
- return false # until complete, just return false
node_ids = self.nodes.collect {|node| node.id }
node_ids_not_to_delete = []
- way_nodes = WayNode.find(:all, :conditions => "node_id in [#{node_ids.join(',')}] and id not #{self.id}")
+ way_nodes = WayNode.find(:all, :conditions => "node_id in (#{node_ids.join(',')}) and id != #{self.id}")
node_ids_not_to_delete = way_nodes.collect {|way_node| way_node.node_id}
- nodes_to_delete = node_ids - node_ids_not_to_delete
+ node_ids_to_delete = node_ids - node_ids_not_to_delete
- # update the visibility etc on the current nodes
- update_time = Time.now()
-
- Node.update(node_ids_to_delete, {:user_id => user.id, :timestamp => update_time, :visibility => false})
-
- # create old nodes
-
- old_nodes_to_create = []
- OldNode.find(node_ids_to_delete).each do |old_node|
- old_nodes_to_create << {:id => old_node.id, :timestamp => update_time, :latitude => old_node.latitude, :longitude => old_node.longitude, :visible => false}
+ # delete the nodes not used by other ways
+ node_ids_to_delete.each do |node_id|
+ n = Node.find(node_id)
+ n.user_id = user.id
+ n.visible = false
+ n.save_with_history!
end
-
- OldNode.create(old_nodes_to_create)
-
- # FIXME - the old nodes need to have their tile updated and I have no idea how that works
- # they also need their tags copied over, and that depends on normalising the tags out to their own table that nicks working on
-
- # finally, delete the way
- self.delete_with_relations_and_history
+ self.user_id = user.id
+
+ self.delete_with_relations_and_history(user)
end
end