Module: BitmaskAttributesHelpers::ClassMethods

Defined in:
lib/bitmask_attributes_helpers.rb

Instance Method Summary collapse

Instance Method Details

#bitmask_helpers(bitmask) ⇒ Object

Set up all bitmask helpers: Virtual Attributes, scopes, and presence checkers



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# File 'lib/bitmask_attributes_helpers.rb', line 49

def bitmask_helpers(bitmask)
  bitmask_presence_methods(bitmask)
  bitmask_scopes(bitmask)
  bitmask_virtual_attributes(bitmask)
end

#bitmask_presence_methods(bitmask) ⇒ Object

Setup presence checking methods for Bitmask attributes

Presence attributes are setup as the possible values suffixed by a question mark, and return true or false



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# File 'lib/bitmask_attributes_helpers.rb', line 12

def bitmask_presence_methods(bitmask)
  send("values_for_#{bitmask}").each do |value|
    define_method "#{value}?" do
      send("#{bitmask}?", value)
    end
  end
end

#bitmask_scopes(bitmask) ⇒ Object

Setup scopes for Bitmask attributes

Scopes are setup with the same name as the value, and include both .value and .not_value versions



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# File 'lib/bitmask_attributes_helpers.rb', line 25

def bitmask_scopes(bitmask)
  send("values_for_#{bitmask}").each do |value|
    scope value, send("with_#{bitmask}", value)
    scope "not_#{value}", send("without_#{bitmask}", value)
  end
end

#bitmask_virtual_attributes(bitmask) ⇒ Object

Setup virtual attributes for Bitmask attributes

Allows you to set and read Bitmask attributes using #value= and #value methods



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# File 'lib/bitmask_attributes_helpers.rb', line 37

def bitmask_virtual_attributes(bitmask)
  send("values_for_#{bitmask}").each do |value|
    define_method("#{value}") { send("#{bitmask}?", value) }
    define_method("#{value}=") { |arg| send("#{bitmask}=", arg.blank? || arg == "0" ? send("#{bitmask}") - [value] : send("#{bitmask}") << value) }
  end
end