Module: BitfieldAttribute::Base

Extended by:
ActiveSupport::Concern
Defined in:
lib/bitfield_attribute/base.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#attributes ⇒ Object 



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# File 'lib/bitfield_attribute/base.rb', line 78

def attributes
  @values.freeze
end

#attributes=(hash) ⇒ Object 



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# File 'lib/bitfield_attribute/base.rb', line 82

def attributes=(hash)
  @values.each { |key, _| @values[key] = false }
  update(hash)
end

#initialize(instance, attribute) ⇒ Object 



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# File 'lib/bitfield_attribute/base.rb', line 58

def initialize(instance, attribute)
  @instance = instance
  @attribute = attribute

  keys = self.class.keys

  @values = keys.zip([false] * keys.size)
  @values = Hash[@values]

  read_bits
end

#to_a ⇒ Object 



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# File 'lib/bitfield_attribute/base.rb', line 70

def to_a
  @values.map { |key, value| key if value }.compact
end

#update(hash) ⇒ Object 



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# File 'lib/bitfield_attribute/base.rb', line 87

def update(hash)
  hash.symbolize_keys.each do |key, value|
    if @values.keys.include?(key)
      @values[key] = true_value?(value)
    end
  end

  write_bits
end

#value ⇒ Object 



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# File 'lib/bitfield_attribute/base.rb', line 74

def value
  @instance[@attribute].to_i
end