Class: QDM::Ratio

Inherits:
Object
  • Object
show all
Defined in:
app/models/qdm/basetypes/ratio.rb

Overview

Represents a Ratio

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(numerator, denominator) ⇒ Ratio

Numerator and denominator are required



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# File 'app/models/qdm/basetypes/ratio.rb', line 7

def initialize(numerator, denominator)
  @numerator = numerator
  @denominator = denominator
end

Instance Attribute Details

#denominator ⇒ Object

Returns the value of attribute denominator.



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# File 'app/models/qdm/basetypes/ratio.rb', line 4

def denominator
  @denominator
end

#numerator ⇒ Object

Returns the value of attribute numerator.



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# File 'app/models/qdm/basetypes/ratio.rb', line 4

def numerator
  @numerator
end

Class Method Details

.demongoize(object) ⇒ Object

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

The array elements in demongoize are the same 2 elements used in mongoize, i.e. [ numerator, denominator ].



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# File 'app/models/qdm/basetypes/ratio.rb', line 23

def demongoize(object)
  return nil unless object

  object = object.symbolize_keys
  QDM::Ratio.new(object[:numerator], object[:denominator]) if object.is_a?(Hash)
end

.evolve(object) ⇒ Object

Converts the object that was supplied to a criteria and converts it into a database friendly form.



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# File 'app/models/qdm/basetypes/ratio.rb', line 45

def evolve(object)
  case object
  when QDM::Ratio then object.mongoize
  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/basetypes/ratio.rb', line 32

def mongoize(object)
  case object
  when nil then nil
  when QDM::Ratio then object.mongoize
  when Hash
    object = object.symbolize_keys
    QDM::Ratio.new(object[:numerator], object[:denominator]).mongoize
  else object
  end
end

Instance Method Details

#mongoize ⇒ Object

Converts an object of this instance into a database friendly value.



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# File 'app/models/qdm/basetypes/ratio.rb', line 13

def mongoize
  { numerator: @numerator, denominator: @denominator, _type: 'QDM::Ratio' }
end