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Code Issues 32 Releases Wiki Activity

Fixed #28967 -- Prevented Cast to FloatField from rounding to integer on MySQL.

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This commit is contained in:
Sergey Fedoseev
2017-12-28 05:16:37 +05:00
committed by Tim Graham
parent f1aa58479c
commit 44908d4d93
3 changed files with 10 additions and 3 deletions
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7
tests/db_functions/test_cast.py
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@@ -1,4 +1,5 @@
import datetime
import decimal
from django.db import models
from django.db.models.expressions import Value
@@ -55,5 +56,7 @@ class CastTests(TestCase):
self.assertEqual(dates.get().cast_datetime, now)
def test_cast_from_python(self):
numbers = Author.objects.annotate(cast_float=Cast(0, models.FloatField()))
self.assertEqual(numbers.get().cast_float, 0.0)
numbers = Author.objects.annotate(cast_float=Cast(decimal.Decimal(0.125), models.FloatField()))
cast_float = numbers.get().cast_float
self.assertIsInstance(cast_float, float)
self.assertEqual(cast_float, 0.125)