Contents

module Ropenlayer
  class Node < ActiveRecord::Base
    
    attr_accessor :geometry_string
    
    set_table_name :ropenlayer_nodes

    GEOMETRY_TYPES = %w( POINT LINESTRING POLYGON ) unless defined?(GEOMETRY_TYPES)
    
    belongs_to :map,      :polymorphic => true
    
    has_many :localizations, :class_name => 'Ropenlayer::Localization'
    
   
    def geometry_string
      "#{ geometry }(#{ localizations.map{|l| "#{ l.longitude } #{ l.latitude }"}.join(',')})"
    end
    
    def geometry_string=(data)
      self.geometry       = data.split('(').first
      localizations_split = data.split('(').last.gsub(')', '').split(',')
      
      self.localizations = []
      order              = 0
      localizations_split.each do |data|
        self.localizations << self.localizations.new(:longitude => data.split.first, :latitude => data.split.last, :order => order = order.next)
      end
    end
    
    def main_latitude
      self.localizations.first ? self.localizations.first.latitude : nil
    end
    
    def main_longitude
      self.localizations.first ? self.localizations.first.longitude : nil
    end
  end
  
end
    
    

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
ropenlayer-0.3.5	lib/ropenlayer/node.rb
ropenlayer-0.3.4	lib/ropenlayer/node.rb