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|
- case: arguments_to_init_unexpected_attributes
main: |
from myapp.models import MyUser
user = MyUser(name=1, age=12)
out: |
main:2: error: Unexpected attribute "name" for model "MyUser" [misc]
main:2: error: Unexpected attribute "age" for model "MyUser" [misc]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyUser(models.Model):
pass
- case: plain_function_which_returns_model
main: |
from myapp.models import MyUser
def func(i: int) -> MyUser:
pass
func("hello") # E: Argument 1 to "func" has incompatible type "str"; expected "int" [arg-type]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyUser(models.Model):
pass
- case: arguments_to_init_from_class_incompatible_type
main: |
from myapp.models import MyUser
user = MyUser(name='hello', age=[])
out: |
main:2: error: Incompatible type for "age" of "MyUser" (got "list[Any]", expected "float | int | str | Combinable") [misc]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyUser(models.Model):
name = models.CharField(max_length=100)
age = models.IntegerField()
- case: arguments_to_init_combined_from_base_classes
main: |
from myapp.models import BaseUser, ChildUser
user = ChildUser(name='Max', age=12, lastname='Lastname')
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class BaseUser(models.Model):
name = models.CharField(max_length=100)
age = models.IntegerField()
class ChildUser(BaseUser):
lastname = models.CharField(max_length=100)
- case: fields_from_abstract_user_propagate_to_init
main: |
from myapp.models import MyUser
user = MyUser(name='Maxim', number=1)
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class AbstractUser(models.Model):
class Meta:
abstract = True
name = models.CharField(max_length=100)
class MyUser(AbstractUser):
number = models.IntegerField()
- case: pk_refers_to_primary_key_and_could_be_passed_to_init
main: |
from myapp.models import MyUser1, MyUser2
user2 = MyUser1(pk='hello')
user3 = MyUser2(pk=1, name='maxim')
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyUser1(models.Model):
mypk = models.CharField(primary_key=True)
class MyUser2(models.Model):
name = models.CharField(max_length=100)
- case: typechecking_of_pk
main: |
from myapp.models import MyUser1
user = MyUser1(pk=[]) # E: Incompatible type for "pk" of "MyUser1" (got "list[Any]", expected "float | int | str | Combinable | None") [misc]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyUser1(models.Model):
mypk = models.IntegerField(primary_key=True)
- case: set_foreign_key_by_its_primary_key
main: |
from datetime import datetime
now = datetime.now()
from myapp.models import Publisher, PublisherDatetime, Book
Book(publisher_id=1, publisher_dt_id=now)
Book(publisher_id=[], publisher_dt_id=now) # E: Incompatible type for "publisher_id" of "Book" (got "list[Any]", expected "Combinable | int | str") [misc]
Book(publisher_id=1, publisher_dt_id=1) # E: Incompatible type for "publisher_dt_id" of "Book" (got "int", expected "str | datetime | date | Combinable") [misc]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class Publisher(models.Model):
pass
class PublisherDatetime(models.Model):
dt_pk = models.DateTimeField(primary_key=True)
class Book(models.Model):
publisher = models.ForeignKey(Publisher, on_delete=models.CASCADE)
publisher_dt = models.ForeignKey(PublisherDatetime, on_delete=models.CASCADE)
- case: setting_value_to_an_array_of_ints
main: |
from myapp.models import MyModel
array_val: tuple[int, ...] = (1,)
MyModel(array=array_val)
array_val2: list[int] = [1]
MyModel(array=array_val2)
class NotAValid:
pass
array_val3: list[NotAValid] = [NotAValid()]
MyModel(array=array_val3) # E: Incompatible type for "array" of "MyModel" (got "list[NotAValid]", expected "Sequence[float | int | str] | Combinable") [misc]
non_init = MyModel()
non_init.array = array_val
non_init.array = array_val2
non_init.array = array_val3 # E: Incompatible types in assignment (expression has type "list[NotAValid]", variable has type "Sequence[float | int | str] | Combinable") [assignment]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
from django.contrib.postgres.fields import ArrayField
class MyModel(models.Model):
array = ArrayField(base_field=models.IntegerField())
- case: if_no_explicit_primary_key_id_can_be_passed
main: |
from myapp.models import MyModel
MyModel(id=1, name='maxim')
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyModel(models.Model):
name = models.CharField(max_length=100)
- case: arguments_can_be_passed_as_positionals
main: |
from myapp.models import MyModel, MyModel2
MyModel(1)
MyModel2(1, 12)
MyModel2(1, []) # E: Incompatible type for "name" of "MyModel2" (got "list[Any]", expected "float | int | str | Combinable") [misc]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyModel(models.Model):
pass
class MyModel2(models.Model):
name = models.IntegerField()
- case: charfield_with_integer_choices
main: |
from myapp.models import MyModel
MyModel(day=1)
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyModel(models.Model):
day = models.CharField(max_length=3, choices=((1, 'Fri'), (2, 'Sat')))
- case: optional_id_fields_allowed_in_init
main: |
from myapp.models import Book, Publisher
Book(id=None)
Book(publisher=None)
Book(publisher_id=None)
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class Publisher(models.Model):
name = models.CharField(primary_key=True, max_length=100)
class Book(models.Model):
publisher = models.ForeignKey(Publisher, on_delete=models.CASCADE, null=True)
- case: init_in_abstract_model_classmethod_should_not_throw_error_for_valid_fields
main: |
from myapp.models import MyModel
MyModel.base_init()
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
from typing_extensions import Self
class AbstractModel(models.Model):
class Meta:
abstract = True
text = models.CharField(max_length=100)
@classmethod
def base_init(cls) -> Self:
return cls(text='mytext')
class MyModel(AbstractModel):
pass
- case: field_set_type_honors_type_redefinition
main: |
from typing_extensions import reveal_type
from myapp.models import MyModel
non_init = MyModel()
reveal_type(non_init.redefined_set_type)
reveal_type(non_init.redefined_union_set_type)
reveal_type(non_init.redefined_array_set_type)
reveal_type(non_init.default_set_type)
reveal_type(non_init.unset_set_type)
non_init.redefined_set_type = "invalid"
non_init.redefined_union_set_type = "invalid"
array_val: list[str] = ["invalid"]
non_init.redefined_array_set_type = array_val
non_init.default_set_type = []
non_init.unset_set_type = []
MyModel(
redefined_set_type="invalid",
redefined_union_set_type="invalid",
redefined_array_set_type=33,
default_set_type=[],
unset_set_type=[],
)
out: |
main:4: note: Revealed type is "builtins.int"
main:5: note: Revealed type is "builtins.int"
main:6: note: Revealed type is "builtins.list[builtins.int]"
main:7: note: Revealed type is "builtins.int"
main:8: note: Revealed type is "Any"
main:9: error: Incompatible types in assignment (expression has type "str", variable has type "int") [assignment]
main:10: error: Incompatible types in assignment (expression has type "str", variable has type "int | float") [assignment]
main:12: error: Incompatible types in assignment (expression has type "list[str]", variable has type "Sequence[int | float]") [assignment]
main:13: error: Incompatible types in assignment (expression has type "list[Never]", variable has type "float | int | str | Combinable") [assignment]
main:15: error: Incompatible type for "redefined_set_type" of "MyModel" (got "str", expected "int") [misc]
main:15: error: Incompatible type for "redefined_union_set_type" of "MyModel" (got "str", expected "int | float") [misc]
main:15: error: Incompatible type for "redefined_array_set_type" of "MyModel" (got "int", expected "Sequence[int | float]") [misc]
main:15: error: Incompatible type for "default_set_type" of "MyModel" (got "list[Any]", expected "float | int | str | Combinable") [misc]
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.contrib.postgres.fields import ArrayField
from django.db import models
from collections.abc import Sequence
from typing import cast
class MyModel(models.Model):
redefined_set_type = cast("models.Field[int, int]", models.IntegerField())
redefined_union_set_type = cast("models.Field[int | float, int]", models.IntegerField())
redefined_array_set_type = cast(
"ArrayField[Sequence[int | float], list[int]]",
ArrayField(base_field=models.IntegerField()),
)
default_set_type = models.IntegerField()
unset_set_type = cast("models.Field", models.IntegerField())
- case: too_many_positional_arguments_on_init
main: |
from myapp.models import MyUser
default_args: list[int]
default_kwargs: dict[str, int]
MyUser(1, "BB") # E: Too many arguments for "MyUser" [call-arg]
MyUser("bbb", id=2) # E: Too many arguments for "MyUser" [call-arg]
MyUser(1, "BB", *default_args) # E: Too many arguments for "MyUser" [call-arg]
MyUser(1, "BB", **default_kwargs) # E: Too many arguments for "MyUser" [call-arg]
# Should be ok because we cannot easily determine arg count
MyUser(*"BB")
MyUser(1, *["BB"])
MyUser(1, *("BB",))
MyUser(1, *default_args)
MyUser(1, **default_kwargs)
installed_apps:
- myapp
files:
- path: myapp/__init__.py
- path: myapp/models.py
content: |
from django.db import models
class MyUser(models.Model):
pass
|
