ForeignKey ignore not work when use `self` as model

NateScarlet commented 5 years ago

from django.db import models

class Person(models.Model):
    parent = models.ForeignKey('self', on_delete=models.SET_NULL, null=True)

    def get_grandparent(self):
        return self.parent.parent

Got [pylint] Instance of 'ForeignKey' has no 'parent' member [E1101]

when change model to 'Person', this warning will disappear

pip freeze:

aniso8601==3.0.2 astroid==2.1.0 atomicwrites==1.2.1 attrs==18.2.0 autopep8==1.4.3 certifi==2018.11.29 cgtwq==3.0.0a5 chardet==3.0.4 colorama==0.4.1 dataclasses==0.6 Django==2.1.3 django-cors-headers==2.4.0 django-environ==0.4.5 django-extensions==2.1.4 django-filter==2.0.0 django-graphql-jwt==0.2.0 graphene==2.1.3 graphene-django==2.2.0 graphene-django-tools==0.12.0 graphql-core==2.1 graphql-relay==0.4.5 idna==2.7 isodate==0.6.0 isort==4.3.4 lazy-object-proxy==1.3.1 mccabe==0.6.1 more-itertools==4.3.0 oauthlib==2.1.0 pluggy==0.8.0 promise==2.2.1 psutil==5.4.7 psycopg2==2.7.6.1 py==1.7.0 pycodestyle==2.4.0 PyJWT==1.6.4 pylint==2.2.2 pylint-django==2.0.4 pylint-plugin-utils==0.4 pypinyin==0.33.2 pytest==4.0.1 pytest-django==3.4.4 pytz==2018.7 Qt.py==1.1.0 requests==2.19.1 rope==0.11.0 Rx==1.6.1 sentry-sdk==0.5.5 singledispatch==3.4.0.3 six==1.11.0 snapshottest==0.5.0 termcolor==1.1.0 urllib3==1.23 websocket-client==0.53.0 wlf==0.5.2 wrapt==1.10.11

atodorov commented 5 years ago

Does self, without the quotes work:

 parent = models.ForeignKey(self, on_delete=models.SET_NULL, null=True)

pylint-django is really having troubles with related fields that are referenced as strings, see #142

NateScarlet commented 5 years ago

Does self, without the quotes work:
 parent = models.ForeignKey(self, on_delete=models.SET_NULL, null=True)
pylint-django is really having troubles with related fields that are referenced as strings, see #142

that will be Undefined variable 'self'

pylint-dev / pylint-django

ForeignKey ignore not work when use `self` as model #208