Class: MoneyAttribute::Type

Inherits:
ActiveRecord::Type::Value
  • Object
show all
Defined in:
lib/money_attribute/type.rb

Overview

Type

Instance Method Summary collapse

Constructor Details

#initialize(currency:, column_type: ActiveRecord::Type::Decimal.new) ⇒ Type

Returns a new instance of Type.



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# File 'lib/money_attribute/type.rb', line 6

def initialize(currency:, column_type: ActiveRecord::Type::Decimal.new)
  @currency = currency
  @column_type = column_type
  super()
end

Instance Method Details

#assert_valid_value(value) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/money_attribute/type.rb', line 20

def assert_valid_value(value)
  case value
  when NilClass, Numeric, String then return
  when Mint::Money
    return if value.currency == @currency

    message = "'#{value.inspect}' has different currency. Only #{@currency.code} allowed."
  else
    message = "'#{value.inspect}' is not a valid type for the attribute."
  end
  raise ArgumentError, message
end

#cast(value) ⇒ Object 



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# File 'lib/money_attribute/type.rb', line 12

def cast(value)
  if value.is_a?(String)
    Mint::Money.parse(value, @currency)
  else
    super
  end
end

#deserialize(value) ⇒ Object 



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# File 'lib/money_attribute/type.rb', line 33

def deserialize(value)
  return nil unless value

  if @column_type.is_a?(ActiveRecord::Type::Integer)
    Mint::Money.from_subunits(value, @currency)
  else
    Mint::Money.from(value, @currency)
  end
end

#serialize(value) ⇒ Object 



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# File 'lib/money_attribute/type.rb', line 43

def serialize(value)
  return nil unless value

  if @column_type.is_a?(ActiveRecord::Type::Integer)
    value.subunits
  else
    value.to_d
  end
end