Module: Osgb::InstanceMethods

Defined in:
lib/osgb/has_gridref.rb

Instance Method Summary collapse

Instance Method Details

#convert_between_gridref_and_latlng ⇒ Object 



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# File 'lib/osgb/has_gridref.rb', line 32

def convert_between_gridref_and_latlng
  options = self.class.osgb_options
  cols = self.class.column_names
  if cols.include?(options[:lat]) && cols.include?(options[:lng]) && cols.include?(options[:gridref])

    if send("#{options[:gridref]}_changed?") || !send("#{options[:lat]}?") || !send("#{options[:lng]}?")
      point = gridref.to_latlng
      send("#{options[:lat]}=", point.lat)
      send("#{options[:lng]}=", point.lng)
      
    elsif send("#{options[:lat]}_changed?") || send("#{options[:lng]}_changed?") || !send("#{options[:gridref]}?")
      send("#{options[:gridref]}=", Osgb::Gridref.from(send(options[:lat]), send(options[:lng])))
    end
    
  else
    raise Osgb::OsgbConfigurationError "OSGB was expecting to see #{options[:lat]}, #{options[:lng]} and #{options[:gridref]} columns."
  end
end

#must_have_location ⇒ Object 



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# File 'lib/osgb/has_gridref.rb', line 28

def must_have_location
  send(cols[:gridref]).is_gridref? || (send("#{cols[:lat]}?") && send("#{cols[:lng]}?"))
end