Module: Bitty::ActiveRecordExtensions

Defined in:
lib/bitty.rb

Instance Method Summary collapse

Instance Method Details

#bitty(field, *args) ⇒ Object 



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# File 'lib/bitty.rb', line 5

def bitty(field, *args)
  field = field.to_sym

  opts = args.extract_options!

  proxy = Class.new(Bitty::BitProxy)
  proxy.bit_names = args
  proxy.column = opts[:column] || field

  # TODO: opts[:default]
  # TODO: opts[:named_scope]
  # TODO: check if field has already been defined in superclass
  write_inheritable_hash(:_bitty_fields, { field => proxy } )

  class_eval <<-RUBY
    def #{field}
      @_bitty_#{field} ||=
        self.class.read_inheritable_attribute(:_bitty_fields)[:#{field}].new(self)
    end

    def #{field}=(value)
      #{field}.set!(value)
    end
  RUBY
end

#bitty_named_scope(name, bitty_field, *args) ⇒ Object 



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# File 'lib/bitty.rb', line 31

def bitty_named_scope(name, bitty_field, *args)
  proxy_class = read_inheritable_attribute(:_bitty_fields)[bitty_field]

  if proxy_class
    named_scope name, proxy_class.named_scope(*args)
  else
    raise ArgumentError, "There's no bitfield '#{bitty_field}' defined!"
  end
end