def test_get_field_kwargs_for_decimal_field(self):
field_kwargs = get_field_kwargs(
'salary',
self.TestGetFieldKwargsModel.salary,
self.TestGetFieldKwargsModel
)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'max_digits', 'decimal_places',
'required', 'allow_null'
])
)
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(
field_kwargs['max_digits'],
self.TestGetFieldKwargsModel.salary.type.precision
)
self.assertEqual(
field_kwargs['decimal_places'],
self.TestGetFieldKwargsModel.salary.type.scale,
)
self.assertEqual(
field_kwargs['model_field'],
self.TestGetFieldKwargsModel.salary
)
def test_get_field_kwargs_for_primary_key_field(self):
field_kwargs = get_field_kwargs('id', self.TestGetFieldKwargsModel.id,
self.TestGetFieldKwargsModel)
self.assertEqual(set(field_kwargs.keys()),
set(['model_field', 'read_only']))
self.assertTrue(field_kwargs['read_only'])
self.assertEqual(field_kwargs['model_field'],
self.TestGetFieldKwargsModel.id)
def build_standard_field(self, *args, **kwargs):
"""
Create regular model fields.
"""
field_name, model_field, model_class = args
field_mapping = ClassLookupDict(self.serializer_field_mapping)
field_class = field_mapping[model_field.type]
field_kwargs = get_field_kwargs(field_name, model_field, model_class)
if 'choices' in field_kwargs:
# Fields with choices get coerced into `ChoiceField`
# instead of using their regular typed field
field_class = self.serializer_choice_field
# Some model fields may introduce kwargs that would not be valid
# for the choice field. We need to strip these out.
# Eg. Column('race', Enum('one', 'two', 'three'))
valid_kwargs = {
'read_only', 'write_only', 'required', 'default', 'initial',
'source', 'label', 'help_text', 'style', 'error_messages',
'validators', 'allow_null', 'allow_blank', 'choices'
}
for key in list(field_kwargs.keys()):
if key not in valid_kwargs:
field_kwargs.pop(key)
if not issubclass(field_class, ModelField):
# `model_field` is only valid for the fallback case of
# `ModelField`, which is used when no other typed field
# matched to the model field
field_kwargs.pop('model_field', None)
if not issubclass(field_class, CharField) and \
not issubclass(field_class, EnumField):
# `allow_blank` is only valid for textual fields
field_kwargs.pop('allow_blank', None)
if isinstance(model_field.type, postgresql.ARRAY):
# Populate the `child` argument on `ListField` instances generated
# for the PostgreSQL specific `ArrayField`
child_field_name = '%s.%s' % (field_name, 'child')
child_model_field = model_field.type.item_type
# Because our model_field, which passed to the build_standard_field
# function is a Column, then wrap this sub-field and invoke this
# method one more time
child_field_class, child_field_kwargs = self.build_standard_field(
child_field_name, Column(child_model_field), model_class)
field_kwargs['child'] = child_field_class(**child_field_kwargs)
return field_class, field_kwargs
def test_get_field_kwargs_for_primary_key_field(self):
field_kwargs = get_field_kwargs(
'id',
self.TestGetFieldKwargsModel.id,
self.TestGetFieldKwargsModel
)
self.assertEqual(
set(field_kwargs.keys()),
set(['model_field', 'read_only'])
)
self.assertTrue(field_kwargs['read_only'])
self.assertEqual(
field_kwargs['model_field'],
self.TestGetFieldKwargsModel.id
)
def test_get_field_kwargs_for_nullable_field(self):
field_kwargs = get_field_kwargs('address',
self.TestGetFieldKwargsModel.address,
self.TestGetFieldKwargsModel)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'required', 'allow_blank', 'allow_null',
'max_length'
]))
self.assertTrue(field_kwargs['allow_blank'])
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(field_kwargs['max_length'], 50)
self.assertEqual(field_kwargs['model_field'],
self.TestGetFieldKwargsModel.address)
def test_get_field_kwargs_for_enum_field(self):
field_kwargs = get_field_kwargs('gender',
self.TestGetFieldKwargsModel.gender,
self.TestGetFieldKwargsModel)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'required', 'allow_blank', 'allow_null',
'choices'
]))
self.assertTrue(field_kwargs['allow_blank'])
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(field_kwargs['model_field'],
self.TestGetFieldKwargsModel.gender)
self.assertEqual(set(field_kwargs['choices']), {'male', 'female'})
def test_get_field_kwargs_for_unique_and_validated_field(self):
field_kwargs = get_field_kwargs('email',
self.TestGetFieldKwargsModel.email,
self.TestGetFieldKwargsModel)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'required', 'allow_blank', 'allow_null',
'validators', 'max_length'
]))
self.assertTrue(field_kwargs['allow_blank'])
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(field_kwargs['max_length'], 50)
self.assertEqual(field_kwargs['model_field'],
self.TestGetFieldKwargsModel.email)
self.assertIn('validators', field_kwargs.keys())
def test_get_field_kwargs_for_decimal_field(self):
field_kwargs = get_field_kwargs('salary',
self.TestGetFieldKwargsModel.salary,
self.TestGetFieldKwargsModel)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'max_digits', 'decimal_places', 'required',
'allow_null'
]))
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(field_kwargs['max_digits'],
self.TestGetFieldKwargsModel.salary.type.precision)
self.assertEqual(
field_kwargs['decimal_places'],
self.TestGetFieldKwargsModel.salary.type.scale,
)
self.assertEqual(field_kwargs['model_field'],
self.TestGetFieldKwargsModel.salary)
def test_get_field_kwargs_for_enum_field(self):
field_kwargs = get_field_kwargs(
'gender',
self.TestGetFieldKwargsModel.gender,
self.TestGetFieldKwargsModel
)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'required', 'allow_blank', 'allow_null',
'choices'
])
)
self.assertTrue(field_kwargs['allow_blank'])
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(
field_kwargs['model_field'],
self.TestGetFieldKwargsModel.gender
)
self.assertEqual(set(field_kwargs['choices']), {'male', 'female'})
def test_get_field_kwargs_for_nullable_field(self):
field_kwargs = get_field_kwargs(
'address',
self.TestGetFieldKwargsModel.address,
self.TestGetFieldKwargsModel
)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'required', 'allow_blank', 'allow_null',
'max_length'
])
)
self.assertTrue(field_kwargs['allow_blank'])
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(field_kwargs['max_length'], 50)
self.assertEqual(
field_kwargs['model_field'],
self.TestGetFieldKwargsModel.address
)
def test_get_field_kwargs_for_unique_and_validated_field(self):
field_kwargs = get_field_kwargs(
'email',
self.TestGetFieldKwargsModel.email,
self.TestGetFieldKwargsModel
)
self.assertEqual(
set(field_kwargs.keys()),
set([
'model_field', 'required', 'allow_blank', 'allow_null',
'validators', 'max_length'
])
)
self.assertTrue(field_kwargs['allow_blank'])
self.assertTrue(field_kwargs['allow_null'])
self.assertFalse(field_kwargs['required'])
self.assertEqual(field_kwargs['max_length'], 50)
self.assertEqual(
field_kwargs['model_field'],
self.TestGetFieldKwargsModel.email
)
self.assertIn('validators', field_kwargs.keys())
