Class: WeatherBug::TransformableData

Inherits:
Object
  • Object
show all
Defined in:
lib/weatherbug/transformable_data.rb

Overview

This is a super-convenient class for transorming data and requiring things in the different associated WeatherBug data classes

Direct Known Subclasses

Forecast, LiveObservation, Station, StationHint

Class Method Summary collapse

Class Method Details

.from_document(document) ⇒ Object 



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# File 'lib/weatherbug/transformable_data.rb', line 15

def self.from_document(document)
  object = self.new
  @transformers.each do |key, options|
    value = document.xpath(key).text
    # If this thing is empty, skip it
    next if value.nil?
    # If this thing needs to be transformed, transform it (from a string)
    value = TransformableData.send(options[:transform], value) if options.has_key?(:transform)
    # Assign it on the class
    object.send("#{options[:name]}=", value)
  end
  object
end

.register_transformer(name, options = {}) ⇒ Object 



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# File 'lib/weatherbug/transformable_data.rb', line 7

def self.register_transformer(name, options = {})
  @transformers ||= {}
  options[:name] = name.split(/[:@]/).last.gsub('-', '_').to_sym unless options.has_key?(:name)
  private; attr_writer options[:name]
  public;  attr_reader options[:name]
  @transformers[name] = options
end