class OldWay < ActiveRecord::Base
+ include ConsistencyValidations
+
set_table_name 'ways'
- belongs_to :user
+ belongs_to :changeset
+ validates_associated :changeset
+
def self.from_way(way)
old_way = OldWay.new
old_way.visible = way.visible
- old_way.user_id = way.user_id
+ old_way.changeset_id = way.changeset_id
old_way.timestamp = way.timestamp
old_way.id = way.id
+ old_way.version = way.version
old_way.nds = way.nds
old_way.tags = way.tags
return old_way
save!
clear_aggregation_cache
clear_association_cache
- @attributes.update(OldWay.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp]).instance_variable_get('@attributes'))
+ @attributes.update(OldWay.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp], :order => "version desc").instance_variable_get('@attributes'))
# ok, you can touch from here on
tag.save!
end
- i = 1
+ sequence = 1
self.nds.each do |n|
nd = OldWayNode.new
- nd.id = self.id
+ nd.id = [self.id, self.version, sequence]
nd.node_id = n
- nd.sequence_id = i
- nd.version = self.version
nd.save!
- i += 1
+ sequence += 1
end
end
el1['id'] = self.id.to_s
el1['visible'] = self.visible.to_s
el1['timestamp'] = self.timestamp.xmlschema
- el1['user'] = self.user.display_name if self.user.data_public?
+ if self.changeset.user.data_public?
+ el1['user'] = self.changeset.user.display_name
+ el1['uid'] = self.changeset.user.id.to_s
+ end
+ el1['version'] = self.version.to_s
+ el1['changeset'] = self.changeset.id.to_s
self.old_nodes.each do |nd| # FIXME need to make sure they come back in the right order
e = XML::Node.new 'nd'
el1 << e
end
return el1
- end
+ end
+
+ # Read full version of old way
+ # For get_nodes_undelete, uses same nodes, even if they've moved since
+ # For get_nodes_revert, allocates new ids
+ # Currently returns Potlatch-style array
+ # where [5] indicates whether latest version is usable as is (boolean)
+ # (i.e. is it visible? are we actually reverting to an earlier version?)
+
+ def get_nodes_undelete
+ points = []
+ self.nds.each do |n|
+ node=Node.find(n)
+ points << [node.lon, node.lat, n, node.version, node.tags_as_hash, node.visible]
+ end
+ points
+ end
+
+ def get_nodes_revert(timestamp)
+ points=[]
+ self.nds.each do |n|
+ oldnode=OldNode.find(:first, :conditions=>['id=? AND timestamp<=?',n,timestamp], :order=>"timestamp DESC")
+ curnode=Node.find(n)
+ id=n; reuse=curnode.visible
+ if oldnode.lat!=curnode.lat or oldnode.lon!=curnode.lon or oldnode.tags!=curnode.tags then
+ # node has changed: if it's in other ways, give it a new id
+ if curnode.ways-[self.id] then id=-1; reuse=false end
+ end
+ points << [oldnode.lon, oldnode.lat, id, curnode.version, oldnode.tags_as_hash, reuse]
+ end
+ points
+ end
+
+ # Temporary method to match interface to nodes
+ def tags_as_hash
+ return self.tags
+ end
+
+ # Temporary method to match interface to ways
+ def way_nodes
+ return self.old_nodes
+ end
+
+ # Pretend we're not in any relations
+ def containing_relation_members
+ return []
+ end
end