免责声明:我已经阅读了django-文档,但没有得出结论。
我被交给了我大学四年级的一个项目以继续工作。
在项目中的应用程序中:accounts
-显然是要创建用户帐户。
在models.py
中from django.contrib import auth
from django.db import models
class User(auth.models.User, auth.models.PermissionsMixin):
def __str__(self):
return "@{}".format(self.username)
尽管在forms.py中未使用此模型。 forms.py
from django.contrib.auth import get_user_model
from django.contrib.auth.forms import UserCreationForm
from django import forms
class UserCreateForm(UserCreationForm):
class Meta:
fields = ("first_name", "last_name", "username", "email", "password1", "password2")
model = get_user_model()
但是这里导入的模型不同于models.py中定义的模型,而是他从from django.contrib.auth
因此,我尝试从models.py中注释掉模型并进行迁移,这会产生错误。
django.db.utils.OperationalError: near ")": syntax error
我使用的是
而不是model = get_user_model
model = User
(来自models.py)
甚至这个产量的错误unable to import User
任何人都可以向我解释一下这是什么关系,为什么要同时使用这两种模型?由于不再是大四,因此我没有机会与他联系。
跟踪-
Traceback (most recent call last):
File "manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/base.py", line 316, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/base.py", line 353, in execute
output = self.handle(*args, **options)
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "/home/user/.local/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 203, in handle
fake_initial=fake_initial,
File "/home/user/.local/lib/python3.6/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 "/home/user/.local/lib/python3.6/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 "/home/user/.local/lib/python3.6/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/user/.local/lib/python3.6/site-packages/django/db/migrations/migration.py", line 124, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/home/user/.local/lib/python3.6/site-packages/django/db/migrations/operations/fields.py", line 150, in database_forwards
schema_editor.remove_field(from_model, from_model._meta.get_field(self.name))
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/sqlite3/schema.py", line 318, in remove_field
self._remake_table(model, delete_field=field)
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/sqlite3/schema.py", line 265, in _remake_table
self.quote_name(model._meta.db_table),
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 133, in execute
cursor.execute(sql, params)
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/utils.py", line 100, in execute
return super().execute(sql, params)
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/utils.py", line 68, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/utils.py", line 77, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/home/user/.local/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/utils.py", line 85, in _execute
return self.cursor.execute(sql, params)
File "/home/user/.local/lib/python3.6/site-packages/django/db/backends/sqlite3/base.py", line 296, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.OperationalError: near ")": syntax error