Class: QDM::Attribute

Inherits:
Object
  • Object
show all
Includes:
Mongoid::Document
Defined in:
app/models/qdm/attributes/attribute.rb

Overview

Represents QDM attribute

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Attribute

Returns a new instance of Attribute.



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# File 'app/models/qdm/attributes/attribute.rb', line 6

def initialize(options = {})
  super(options)
end

Class Method Details

.demongoize(object) ⇒ Object

Get the object as it was stored in the database, and instantiate this custom class from it.



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# File 'app/models/qdm/attributes/attribute.rb', line 31

def demongoize(object)
  return nil unless object

  object = object.symbolize_keys
  if object.is_a?(Hash)
    # This will turn the object into the concrete type eg: facilityLocation
    data_element = QDM.const_get(object[:_type]).new
    data_element.attribute_names.each do |field|
      data_element.send(field + '=', object[field.to_sym])
    end
    data_element
  else object
  end
end

.mongoize(object) ⇒ Object

Takes any possible object and converts it to how it would be stored in the database.



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# File 'app/models/qdm/attributes/attribute.rb', line 48

def mongoize(object)
  case object
  when nil then nil
  when QDM::Attribute then object.mongoize
  when Hash
    object = object.symbolize_keys
    data_element = QDM.const_get(object[:_type]).new
    data_element.attribute_names.each do |field|
      data_element.send(field + '=', object[field.to_sym])
    end
    data_element.mongoize
  else object
  end
end

Instance Method Details

#get(attribute) ⇒ Object

Returns the attribute requested on the datatype.



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# File 'app/models/qdm/attributes/attribute.rb', line 11

def get(attribute)
  send(attribute) if has_attribute?(attribute)
end

#mongoize ⇒ Object 



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# File 'app/models/qdm/attributes/attribute.rb', line 15

def mongoize
  json_representation = {}
  attribute_names.each do |field|
    json_representation[field] = send(field).mongoize
  end
  json_representation
end

#to_json(options = nil) ⇒ Object

Include ‘_type’ in any JSON output. This is necessary for deserialization.



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# File 'app/models/qdm/attributes/attribute.rb', line 24

def to_json(options = nil)
  serializable_hash(methods: :_type).to_json(options)
end