Module: ModelPack::ClassMethods

Defined in:
lib/model_pack/class_methods.rb

Instance Method Summary collapse

Instance Method Details

#array(name, default: nil, serialize: nil, writer: nil, class_name: nil) ⇒ Object 



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# File 'lib/model_pack/class_methods.rb', line 36

def array(name, default: nil, serialize: nil, writer: nil, class_name: nil)
  attribute(name,
      default: default,
      serialize: serialize,
      as: Array,
      writer: writer || lambda { |array| array.collect { |v| v.is_a?(Hash) && class_name ? class_name.new(v) : v } })
end

#attribute(name, writer: lambda { |v| v }, default: nil, as: nil, serialize: nil) ⇒ Object 



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# File 'lib/model_pack/class_methods.rb', line 4

def attribute(name, writer: lambda { |v| v }, default: nil, as: nil, serialize: nil)
  attribute_reader(name, default: default, as: as, serialize: serialize)
  attribute_writer(name, writer: writer)
  register_attribute(name)
end

#attribute_reader(name, default: nil, as: nil, serialize: nil) ⇒ Object 



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# File 'lib/model_pack/class_methods.rb', line 16

def attribute_reader(name, default: nil, as: nil, serialize: nil)
  default_dup = default.dup rescue default
  default_value = default_dup || (as && as.new)

  define_method name do
    instance_variable_defined?("@#{name}") ? instance_variable_get("@#{name}") : instance_variable_set("@#{name}", default_value)
  end

  define_method "#{name}_hash" do
    instance_exec(send(name), &serialize)
  end if serialize
end

#attribute_writer(name, writer: lambda { |v| v }) ⇒ Object 



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# File 'lib/model_pack/class_methods.rb', line 10

def attribute_writer(name, writer: lambda { |v| v })
  define_method "#{name}=" do |value|
    instance_variable_set("@#{name}", instance_exec(value, &writer))
  end
end

#hashable(name, default: nil, serialize: nil) ⇒ Object 



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# File 'lib/model_pack/class_methods.rb', line 44

def hashable(name, default: nil, serialize: nil)
  attribute(name,
      default: default,
      serialize: serialize,
      as: Hash)
end

#object(name, class_name: nil, default: nil, serialize: nil) ⇒ Object 



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# File 'lib/model_pack/class_methods.rb', line 29

def object(name, class_name: nil, default: nil, serialize: nil)
  attribute(name,
    default: default,
    serialize: serialize,
    writer: lambda { |v| v.is_a?(Hash) && class_name ? class_name.new(v) : v })
end