DirtyAttributes accept BigDecimal types as mutated types
I have a model callback (after_save) and one of the attributes is a BigDecimal type. So when I change another attribute and check for dirty attributes with a method changes
, I have this:
{"amount"=>[#<BigDecimal:7f86aa3ac900,'-0.4E3',9(18)>, #<BigDecimal:7f86aa3ac838,'-0.4E3',9(18)>], "description"=>["vvvv", "ccc"]}
It creates the quantity as BigDecimal and accepts the object_id as part of the changes.
Does anyone know how to avoid this behavior?
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If in after_save you need to check if some BigDecimal field is actually changed, you need to reload the generated rails method attr_name_changed?
(in your case amount_changed?
):
def amount_changed?
if amount_change.present?
amount_change[0].to_f != amount_change[1].to_f
end
end
That it compares before ( amount_change[0]
) and after ( amount_change[1]
) values in float form.
So, in the after_save callback, you can:
after_save :do_something_if_amount_changed
def do_something_if_amount_changed
if amount_changed?
do_something
end
end
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