mirror of
https://github.com/davidhalter/django-stubs.git
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53 lines
2.2 KiB
Python
53 lines
2.2 KiB
Python
from typing import cast
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from mypy.checker import TypeChecker
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from mypy.nodes import MemberExpr, TypeInfo
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from mypy.plugin import AttributeContext, FunctionContext
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from mypy.types import Instance
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from mypy.types import Type as MypyType
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from mypy.types import TypeType
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from mypy_django_plugin.django.context import DjangoContext
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from mypy_django_plugin.lib import helpers
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def get_user_model_hook(ctx: FunctionContext, django_context: DjangoContext) -> MypyType:
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auth_user_model = django_context.settings.AUTH_USER_MODEL
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model_cls = django_context.apps_registry.get_model(auth_user_model)
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model_cls_fullname = helpers.get_class_fullname(model_cls)
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model_info = helpers.lookup_fully_qualified_generic(model_cls_fullname,
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helpers.get_typechecker_api(ctx).modules)
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assert isinstance(model_info, TypeInfo)
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return TypeType(Instance(model_info, []))
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def get_type_of_settings_attribute(ctx: AttributeContext, django_context: DjangoContext) -> MypyType:
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assert isinstance(ctx.context, MemberExpr)
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setting_name = ctx.context.name
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if not hasattr(django_context.settings, setting_name):
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ctx.api.fail(f"'Settings' object has no attribute {setting_name!r}", ctx.context)
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return ctx.default_attr_type
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typechecker_api = helpers.get_typechecker_api(ctx)
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# first look for the setting in the project settings file, then global settings
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settings_module = typechecker_api.modules.get(django_context.django_settings_module)
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global_settings_module = typechecker_api.modules.get('django.conf.global_settings')
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for module in [settings_module, global_settings_module]:
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if module is not None:
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sym = module.names.get(setting_name)
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if sym is not None and sym.type is not None:
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return sym.type
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# if by any reason it isn't present there, get type from django settings
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value = getattr(django_context.settings, setting_name)
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value_fullname = helpers.get_class_fullname(value.__class__)
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value_info = helpers.lookup_fully_qualified_typeinfo(typechecker_api, value_fullname)
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if value_info is None:
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return ctx.default_attr_type
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return Instance(value_info, [])
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