def self.from_way(way)
old_way = OldWay.new
+ old_way.visible = way.visible
old_way.user_id = way.user_id
old_way.timestamp = way.timestamp
old_way.id = way.id
return old_way
end
- def save_with_dependencies
- t = Time.now
- self.timestamp = t
- self.save
-
+ def save_with_dependencies!
+
+ # dont touch this unless you really have figured out why it's called
+ # (Rails doesn't deal well with the old ways table (called 'ways') because
+ # it doesn't have a unique key. It knows how to insert and auto_increment
+ # id and get it back but we have that and we want to get the 'version' back
+ # we could add another column but thats a lot of data. No, set_primary_key
+ # doesn't work either.
+ save!
+ clear_aggregation_cache
+ clear_association_cache
+ @attributes.update(OldWay.find(:first, :conditions => ['id = ? AND timestamp = ?', self.id, self.timestamp]).instance_variable_get('@attributes'))
+
+ # ok, you can touch from here on
+
self.tags.each do |k,v|
tag = OldWayTag.new
tag.k = k
tag.v = v
tag.id = self.id
- tag.save
+ tag.version = self.version
+ tag.save!
end
- i = 0
+ i = 1
self.segs.each do |n|
seg = OldWaySegment.new
seg.id = self.id
seg.segment_id = n
- seg.sequence_id = i
- seg.save
- i += 1
+ seg.version = self.version
+ seg.save!
end
-
- old_way = OldWay.from_way(self)
- old_way.save
end
def segs
- @segs = Array.new unless @segs
+ unless @segs
+ @segs = Array.new
+ OldWaySegment.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version], :order => "sequence_id").each do |seg|
+ @segs += [seg.segment_id]
+ end
+ end
@segs
end
def tags
+ unless @tags
+ @tags = Hash.new
+ OldWayTag.find(:all, :conditions => ["id = ? AND version = ?", self.id, self.version]).each do |tag|
+ @tags[tag.k] = tag.v
+ end
+ end
@tags = Hash.new unless @tags
@tags
end
@tags = t
end
+# has_many :way_segments, :class_name => 'OldWaySegment', :foreign_key => 'id'
+# has_many :way_tags, :class_name => 'OldWayTag', :foreign_key => 'id'
+
+ def old_segments
+ OldWaySegment.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version])
+ end
+
+ def old_tags
+ OldWayTag.find(:all, :conditions => ['id = ? AND version = ?', self.id, self.version])
+ end
+
+ def to_xml_node
+ el1 = XML::Node.new 'way'
+ 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?
+
+ self.old_segments.each do |seg| # FIXME need to make sure they come back in the right order
+ e = XML::Node.new 'seg'
+ e['id'] = seg.segment_id.to_s
+ el1 << e
+ end
+
+ self.old_tags.each do |tag|
+ e = XML::Node.new 'tag'
+ e['k'] = tag.k
+ e['v'] = tag.v
+ el1 << e
+ end
+ return el1
+ end
end