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# File 'app/models/unidom/order/order_adjustment.rb', line 25
def self.adjust!(adjusted, amount: 0, due_to: 'FRGT', opened_at: Time.now)
assert_present! :adjusted, adjusted
assert_present! :amount, amount
assert_present! :due_to, due_to
assert_present! :opened_at, opened_at
query = adjusted_is(adjusted).adjustment_factor_coded_as(due_to).valid_at(now: opened_at).alive
adjustment = query.first
if adjustment.present?
if 0==amount
adjustment.soft_destroy
else
adjustment.amount = amount
adjustment.save!
end
else
adjustment = query.create! amount: amount, opened_at: opened_at
end
adjustment
end
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