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Fixed DecimalField arbitrary precision support #4075

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merged 1 commit into from
Apr 27, 2016
Merged

Fixed DecimalField arbitrary precision support #4075

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3 changes: 3 additions & 0 deletions rest_framework/fields.py
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Original file line number Diff line number Diff line change
Expand Up @@ -992,6 +992,9 @@ def quantize(self, value):
"""
Quantize the decimal value to the configured precision.
"""
if self.decimal_places is None:
return value

context = decimal.getcontext().copy()
context.prec = self.max_digits
return value.quantize(
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15 changes: 15 additions & 0 deletions tests/test_fields.py
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Expand Up @@ -894,6 +894,21 @@ class TestNoStringCoercionDecimalField(FieldValues):
)


class TestNoDecimalPlaces(FieldValues):
valid_inputs = {
'0.12345': Decimal('0.12345'),
}
invalid_inputs = {
'0.1234567': ['Ensure that there are no more than 6 digits in total.']
}
outputs = {
'1.2345': '1.2345',
'0': '0',
'1.1': '1.1',
}
field = serializers.DecimalField(max_digits=6, decimal_places=None)


# Date & time serializers...

class TestDateField(FieldValues):
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