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Python Django迁移没有从makemigrations中获取更改

python django

Python Django迁移没有从makemigrations中获取更改,python,django,Python,Django,我向models.py添加了一个新模型，对应于我需要创建的一个新SQL表。我包括了一个字段，Id，它显然不喜欢这个字段，因为python manage.py migrate说它是一个重复的字段（可能是一个Id字段也被自动添加了或是其他什么） 这很好，所以我从模型中删除了该字段，并重新运行了python manage.py makemigrations，它正确地报告了Id字段正在被删除。我认为重新运行了python manage.py migrate，但仍然会出现相同的错误，即存在重复的Id字段

我向
models.py
添加了一个新模型，对应于我需要创建的一个新SQL表。我包括了一个字段，
Id
，它显然不喜欢这个字段，因为
python manage.py migrate
说它是一个重复的字段（可能是一个
Id
字段也被自动添加了或是其他什么）

这很好，所以我从模型中删除了该字段，并重新运行了
python manage.py makemigrations
，它正确地报告了
Id
字段正在被删除。我认为重新运行了
python manage.py migrate
，但仍然会出现相同的错误，即存在重复的
Id
字段

从
models.py
：

class TII(models.Model):
    Person_bnr_id = models.CharField(max_length = 128, unique = True)
    COURSE_IDENTIFICATION = models.CharField(max_length = 128, unique = True)
    Course_start = models.CharField(max_length = 128, unique = True)
    Course_end = models.CharField(max_length = 128, unique = True)
    TurnItIn_W01 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W02 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W03 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W04 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W05 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W06 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W07 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W08 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W09 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W10 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W11 = models.CharField(max_length = 128, unique = True)
    TurnItIn_W12 = models.CharField(max_length = 128, unique = True)
从
python manage.py migrate
：

(P27_D19) [root@mdbiawebappdev1 loeuk]# python manage.py migrate
Operations to perform:
  Apply all migrations: admin, contenttypes, studentprogress, auth, sessions
Running migrations:
  Rendering model states... DONE
  Applying studentprogress.0100_tii...Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
    utility.execute()
  File "/srv/P27_D19/lib/python2.7/site-packages/django/core/management/__init__.py", line 345, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/core/management/base.py", line 348, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/core/management/base.py", line 399, in execute
    output = self.handle(*args, **options)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 200, in handle
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/migrations/executor.py", line 92, in migrate
    self._migrate_all_forwards(plan, full_plan, fake=fake, fake_initial=fake_initial)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/migrations/executor.py", line 121, in _migrate_all_forwards
    state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/migrations/executor.py", line 198, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/migrations/migration.py", line 123, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/migrations/operations/models.py", line 59, in database_forwards
    schema_editor.create_model(model)
  File "/srv/P27_D19/lib/python2.7/site-packages/sql_server/pyodbc/schema.py", line 535, in create_model
    self.execute(sql, params or None)
  File "/srv/P27_D19/lib/python2.7/site-packages/sql_server/pyodbc/schema.py", line 584, in execute
    cursor.execute(sql, params)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/backends/utils.py", line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/srv/P27_D19/lib/python2.7/site-packages/django/db/backends/utils.py", line 62, in execute
    return self.cursor.execute(sql)
  File "/srv/P27_D19/lib/python2.7/site-packages/sql_server/pyodbc/base.py", line 537, in execute
    return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: ('42S21', "[42S21] [Microsoft][ODBC Driver 13 for SQL Server][SQL Server]Column names in each table must be unique. Column name 'Id' in table 'studentprogress_tii' is specified more than once. (2705) (SQLExecDirectW)")

showmigrations
输出显示
0100_tii
迁移尚未应用

[X] 0099_student_referrer_email
[ ] 0100_tii
[ ] 0101_remove_tii_id
因此，我将删除
0100_tii
和
0101_remove_tii_id
文件。然后可以重新运行
makemigrations
。如果
0100\u tii
所做的只是添加id字段，那么在对模型进行进一步更改之前，您可能不需要运行
makemigrations
。

showmigrations
输出显示
0100\u tii
迁移尚未应用

[X] 0099_student_referrer_email
[ ] 0100_tii
[ ] 0101_remove_tii_id
因此，我将删除
0100_tii
和
0101_remove_tii_id
文件。然后可以重新运行
makemigrations
。如果
0100_tii
所做的只是添加id字段，那么在对模型进行进一步更改之前，您可能不需要运行
makemigrations
。

showmigrations的输出是什么？@RaphaëlGomè的伟大问题，我现在将添加该信息。您可以向我们展示
0100_tii
文件吗？@RaphaëlGomè是的，当然可以。现在添加。在我看来，这不像是一个迁移文件。
showmigrations
的输出是什么？@RaphaëlGomè的好问题，我现在就添加这些信息。你能给我们看看
0100_tii
文件吗？@RaphaëlGomès是的，当然。现在添加。在我看来，这不像是迁移文件。太棒了。你能解释一下在哪里可以找到这些文件以便我删除它们吗？这是我第一次。谢谢这也是我的直觉，@Hack-R：请继续与我聊天（见评论）@RaphaëlGomès当然，我现在就加入聊天。我的老板问了我一些问题，抱歉耽搁了。应用程序是
studentprogress
，因此迁移文件将位于
studentprogress/migrations/
。太棒了。你能解释一下在哪里可以找到这些文件以便我删除它们吗？这是我第一次。谢谢这也是我的直觉，@Hack-R：请继续与我聊天（见评论）@RaphaëlGomès当然，我现在就加入聊天。我的老板问了我一些问题，很抱歉耽搁了。应用程序是
studentprogress
，因此迁移文件将位于
studentprogress/migrations/
。