diff options
Diffstat (limited to 'activemodel/lib/active_model/type/decimal.rb')
-rw-r--r-- | activemodel/lib/active_model/type/decimal.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/type/decimal.rb b/activemodel/lib/active_model/type/decimal.rb new file mode 100644 index 0000000000..83a16018ea --- /dev/null +++ b/activemodel/lib/active_model/type/decimal.rb @@ -0,0 +1,50 @@ +module ActiveModel + module Type + class Decimal < Value # :nodoc: + include Helpers::Numeric + + def type + :decimal + end + + def type_cast_for_schema(value) + value.to_s.inspect + end + + private + + def cast_value(value) + casted_value = case value + when ::Float + convert_float_to_big_decimal(value) + when ::Numeric, ::String + BigDecimal(value, precision.to_i) + else + if value.respond_to?(:to_d) + value.to_d + else + cast_value(value.to_s) + end + end + + scale ? casted_value.round(scale) : casted_value + end + + def convert_float_to_big_decimal(value) + if precision + BigDecimal(value, float_precision) + else + value.to_d + end + end + + def float_precision + if precision.to_i > ::Float::DIG + 1 + ::Float::DIG + 1 + else + precision.to_i + end + end + end + end +end |