validates_numericality_of :node_a
validates_numericality_of :node_b
- # FIXME validate a nd b exist and are visible
has_many :old_segments, :foreign_key => :id
belongs_to :user
+ has_one :from_node, :class_name => 'Node', :foreign_key => 'id'
+ has_one :to_node, :class_name => 'Node', :foreign_key => 'id'
def self.from_xml(xml, create=false)
p = XML::Parser.new
segment.id = pt['id'].to_i
end
- segment.visible = pt['visible'] and pt['visible'] == 'true'
+ segment.visible = true
if create
segment.timestamp = Time.now
key = parts[0].strip unless parts[0].nil?
val = parts[1].strip unless parts[1].nil?
if key != '' && val != ''
- el2 = Segment.new('tag')
+ el2 = XML::Node.new('tag')
el2['k'] = key.to_s
el2['v'] = val.to_s
el << el2
end
end
+ def preconditions_ok?
+ from_node and from_node.visible and to_node and to_node.visible
+ end
end