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Code Issues 32 Releases Wiki Activity

Fixed #29619 -- Added field names to some FieldErrors.

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This commit is contained in:
Hasan Ramezani
2019-02-15 00:58:08 +01:00
committed by Tim Graham
parent 5013d38380
commit 741ce81a42
4 changed files with 38 additions and 9 deletions
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20
django/db/models/sql/compiler.py
View File

@@ -1191,9 +1191,15 @@ class SQLInsertCompiler(SQLCompiler):
'can only be used to update, not to insert.' % (value, field) 'can only be used to update, not to insert.' % (value, field)
) )
if value.contains_aggregate: if value.contains_aggregate:
raise FieldError("Aggregate functions are not allowed in this query") raise FieldError(
'Aggregate functions are not allowed in this query '
'(%s=%r).' % (field.name, value)
)
if value.contains_over_clause: if value.contains_over_clause:
raise FieldError('Window expressions are not allowed in this query.') raise FieldError(
'Window expressions are not allowed in this query (%s=%r).'
% (field.name, value)
)
else: else:
value = field.get_db_prep_save(value, connection=self.connection) value = field.get_db_prep_save(value, connection=self.connection)
return value return value
@@ -1356,9 +1362,15 @@ class SQLUpdateCompiler(SQLCompiler):
if hasattr(val, 'resolve_expression'): if hasattr(val, 'resolve_expression'):
val = val.resolve_expression(self.query, allow_joins=False, for_save=True) val = val.resolve_expression(self.query, allow_joins=False, for_save=True)
if val.contains_aggregate: if val.contains_aggregate:
raise FieldError("Aggregate functions are not allowed in this query") raise FieldError(
'Aggregate functions are not allowed in this query '
'(%s=%r).' % (field.name, val)
)
if val.contains_over_clause: if val.contains_over_clause:
raise FieldError('Window expressions are not allowed in this query.') raise FieldError(
'Window expressions are not allowed in this query '
'(%s=%r).' % (field.name, val)
)
elif hasattr(val, 'prepare_database_save'): elif hasattr(val, 'prepare_database_save'):
if field.remote_field: if field.remote_field:
val = field.get_db_prep_save( val = field.get_db_prep_save(

3
tests/expressions/tests.py
View File

@@ -264,7 +264,8 @@ class BasicExpressionsTests(TestCase):
def test_object_create_with_aggregate(self): def test_object_create_with_aggregate(self):
# Aggregates are not allowed when inserting new data # Aggregates are not allowed when inserting new data
with self.assertRaisesMessage(FieldError, 'Aggregate functions are not allowed in this query'): msg = 'Aggregate functions are not allowed in this query (num_employees=Max(Value(1))).'
with self.assertRaisesMessage(FieldError, msg):
Company.objects.create( Company.objects.create(
name='Company', num_employees=Max(Value(1)), num_chairs=1, name='Company', num_employees=Max(Value(1)), num_chairs=1,
ceo=Employee.objects.create(firstname="Just", lastname="Doit", salary=30), ceo=Employee.objects.create(firstname="Just", lastname="Doit", salary=30),

12
tests/expressions_window/tests.py
View File

@@ -670,7 +670,12 @@ class WindowFunctionTests(TestCase):
def test_fail_update(self): def test_fail_update(self):
"""Window expressions can't be used in an UPDATE statement.""" """Window expressions can't be used in an UPDATE statement."""
msg = 'Window expressions are not allowed in this query' msg = (
'Window expressions are not allowed in this query (salary=<Window: '
'Max(Col(expressions_window_employee, expressions_window.Employee.salary)) '
'OVER (PARTITION BY Col(expressions_window_employee, '
'expressions_window.Employee.department))>).'
)
with self.assertRaisesMessage(FieldError, msg): with self.assertRaisesMessage(FieldError, msg):
Employee.objects.filter(department='Management').update( Employee.objects.filter(department='Management').update(
salary=Window(expression=Max('salary'), partition_by='department'), salary=Window(expression=Max('salary'), partition_by='department'),
@@ -678,7 +683,10 @@ class WindowFunctionTests(TestCase):
def test_fail_insert(self): def test_fail_insert(self):
"""Window expressions can't be used in an INSERT statement.""" """Window expressions can't be used in an INSERT statement."""
msg = 'Window expressions are not allowed in this query' msg = (
'Window expressions are not allowed in this query (salary=<Window: '
'Sum(Value(10000), order_by=OrderBy(F(pk), descending=False)) OVER ()'
)
with self.assertRaisesMessage(FieldError, msg): with self.assertRaisesMessage(FieldError, msg):
Employee.objects.create( Employee.objects.create(
name='Jameson', department='Management', hire_date=datetime.date(2007, 7, 1), name='Jameson', department='Management', hire_date=datetime.date(2007, 7, 1),

12
tests/update/tests.py
View File

@@ -165,7 +165,11 @@ class AdvancedTests(TestCase):
self.assertEqual(qs.update(another_value=F('alias')), 3) self.assertEqual(qs.update(another_value=F('alias')), 3)
# Update where aggregation annotation is used in update parameters # Update where aggregation annotation is used in update parameters
qs = DataPoint.objects.annotate(max=Max('value')) qs = DataPoint.objects.annotate(max=Max('value'))
with self.assertRaisesMessage(FieldError, 'Aggregate functions are not allowed in this query'): msg = (
'Aggregate functions are not allowed in this query '
'(another_value=Max(Col(update_datapoint, update.DataPoint.value))).'
)
with self.assertRaisesMessage(FieldError, msg):
qs.update(another_value=F('max')) qs.update(another_value=F('max'))
def test_update_annotated_multi_table_queryset(self): def test_update_annotated_multi_table_queryset(self):
@@ -185,5 +189,9 @@ class AdvancedTests(TestCase):
# self.assertEqual(updated, 1) # self.assertEqual(updated, 1)
# Update where aggregation annotation is used in update parameters # Update where aggregation annotation is used in update parameters
qs = RelatedPoint.objects.annotate(max=Max('data__value')) qs = RelatedPoint.objects.annotate(max=Max('data__value'))
with self.assertRaisesMessage(FieldError, 'Aggregate functions are not allowed in this query'): msg = (
'Aggregate functions are not allowed in this query '
'(name=Max(Col(update_datapoint, update.DataPoint.value))).'
)
with self.assertRaisesMessage(FieldError, msg):
qs.update(name=F('max')) qs.update(name=F('max'))