发生原因
模型修改前
class FileManageIT(models.Model): """文件管理""" author = models.ForeignKey(UserLoginInfo, on_delete=models.CASCADE, verbose_name="上传者") # 级联删除 ... create_date = models.DateField(verbose_name=u'发布时间', default=timezone.now)模型修改后
# 修改了名字 class FileManage(models.Model): """文件管理""" author = models.ForeignKey(UserLoginInfo, on_delete=models.CASCADE, verbose_name="上传者") # 级联删除 ... create_date = models.DateField(verbose_name=u'发布时间', default=timezone.now)然后执行 python manage.py makemigrations 和 python manage.py migrate 出现
C:\Users\EW\PycharmProjects\ndmark>python manage.py migrate Operations to perform: Apply all migrations: admin, auth, contenttypes, sessions Running migrations: Applying contenttypes.0001_initial... OK Applying admin.0001_initial...Traceback (most recent call last): File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 82, in _execute return self.cursor.execute(sql) File "C:\Python36\lib\site-packages\django\db\backends\sqlite3\base.py", line 381, in execute return Database.Cursor.execute(self, query) sqlite3.OperationalError: no such table: users_userlogininfo The above exception was the direct cause of the following exception: Traceback (most recent call last): File "manage.py", line 21, in <module> main() File "manage.py", line 17, in main execute_from_command_line(sys.argv) File "C:\Python36\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line utility.execute() File "C:\Python36\lib\site-packages\django\core\management\__init__.py", line 375, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "C:\Python36\lib\site-packages\django\core\management\base.py", line 323, in run_from_argv self.execute(*args, **cmd_options) File "C:\Python36\lib\site-packages\django\core\management\base.py", line 364, in execute output = self.handle(*args, **options) File "C:\Python36\lib\site-packages\django\core\management\base.py", line 83, in wrapped res = handle_func(*args, **kwargs) File "C:\Python36\lib\site-packages\django\core\management\commands\migrate.py", line 234, in handle fake_initial=fake_initial, File "C:\Python36\lib\site-packages\django\db\migrations\executor.py", line 117, in migrate state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial) File "C:\Python36\lib\site-packages\django\db\migrations\executor.py", line 147, in _migrate_all_forwards state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial) File "C:\Python36\lib\site-packages\django\db\migrations\executor.py", line 247, in apply_migration migration_recorded = True File "C:\Python36\lib\site-packages\django\db\backends\sqlite3\schema.py", line 34, in __exit__ self.connection.check_constraints() File "C:\Python36\lib\site-packages\django\db\backends\sqlite3\base.py", line 341, in check_constraints column_name, referenced_column_name, File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 99, in execute return super().execute(sql, params) File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 67, in execute return self._execute_with_wrappers(sql, params, many=False, executor=self._execute) File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 76, in _execute_with_wrappers return executor(sql, params, many, context) File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 84, in _execute return self.cursor.execute(sql, params) File "C:\Python36\lib\site-packages\django\db\utils.py", line 89, in __exit__ raise dj_exc_value.with_traceback(traceback) from exc_value File "C:\Python36\lib\site-packages\django\db\backends\utils.py", line 82, in _execute return self.cursor.execute(sql) File "C:\Python36\lib\site-packages\django\db\backends\sqlite3\base.py", line 381, in execute return Database.Cursor.execute(self, query) django.db.utils.OperationalError: no such table: users_userlogininfo解决方案
# 分app执行 python manage.py makemigrations appname C:\Users\EW\PycharmProjects\ndmark>python manage.py makemigrations articles Migrations for 'articles': articles\migrations\0001_initial.py - Create model Article - Create model Comment - Create model CommentLike - Create model ArticleLike ...然后执行 python manage.py migrate
C:\Users\EW\PycharmProjects\ndmark>python manage.py migrate Operations to perform: Apply all migrations: admin, articles, auth, contenttypes, filemanage, sessions, users Running migrations: Applying contenttypes.0002_remove_content_type_name... OK Applying auth.0001_initial... OK Applying auth.0002_alter_permission_name_max_length... OK Applying auth.0003_alter_user_email_max_length... OK Applying auth.0004_alter_user_username_opts... OK Applying auth.0005_alter_user_last_login_null... OK Applying auth.0006_require_contenttypes_0002... OK Applying auth.0007_alter_validators_add_error_messages... OK Applying auth.0008_alter_user_username_max_length... OK Applying auth.0009_alter_user_last_name_max_length... OK Applying auth.0010_alter_group_name_max_length... OK Applying auth.0011_update_proxy_permissions... OK Applying users.0001_initial... OK Applying admin.0001_initial... OK Applying admin.0002_logentry_remove_auto_add... OK Applying admin.0003_logentry_add_action_flag_choices... OK Applying articles.0001_initial... OK Applying filemanage.0001_initial... OK Applying sessions.0001_initial... OK！！成功
