Question

不幸的是，在迁移Django迁移文件时遇到了一些问题，因为对于这个极其特定的数据库，我有太多模型。因此，我有6个迁移文件。我之所以有这么多，是因为“模型太多”。我正在尝试推断无法迁移的原因，我相信是1）（给我的指针）堆栈溢出和2）内存。

这是我要删除的迁移文件中的代码：

operations = [
    migrations.AlterField(
        model_name='pnote1',
        name='status',
        field=models.CharField(choices=[('5', 'test5'), ('4', 'test4'), ('3', 'test3'), ('6', 'test6'), ('1', 'test1'), ('2', 'test2')], default='1', max_length=1),
    ),

这些AlterField中有100个。我想知道是否可以删除它们而不会损害数据库。即使没有任何更改，拥有这些AlterField也似乎是多余的。这些模型（从抽象模型继承而来）具有：

option = models.CharField(max_length=1, choices=TYPE, default='1')

我最初选择的顺序是1-6，而不是混乱。在每个迁移文件中，migrations.AlterField的数量由于某些奇怪的原因而不断增加。再说一遍，我可以删除它而不损害数据库吗？

编辑：这是我要迁移的时间，而不是进行迁移。

Fatal Python error: Cannot recover from stack overflow.

Current thread 0x00001528 (most recent call first):
  File "c:\users\test\appdata\local\programs\python\python37-32\Lib\contextlib.py", line 130 in __exit__
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\state.py", line 318 in render_multiple
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\state.py", line 191 in _reload
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\state.py", line 158 in reload_model
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\state.py", line 97 in add_model
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\operations\models.py", line 86 in state_forwards
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\migration.py", line 114 in apply
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\executor.py", line 245 in apply_migration
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\executor.py", line 147 in _migrate_all_forwards
  File "C:\Users\test\test\testvenv\lib\site-packages\django\db\migrations\executor.py", line 117 in migrate
  File "C:\Users\test\test\testvenv\lib\site-packages\django\core\management\commands\migrate.py", line 234 in handle
  File "C:\Users\test\test\testvenv\lib\site-packages\django\core\management\base.py", line 83 in wrapped
  File "C:\Users\test\test\testvenv\lib\site-packages\django\core\management\base.py", line 364 in execute
  File "C:\Users\test\test\testvenv\lib\site-packages\django\core\management\base.py", line 323 in run_from_argv
  File "C:\Users\test\test\testvenv\lib\site-packages\django\core\management\__init__.py", line 375 in execute
  File "C:\Users\test\test\testvenv\lib\site-packages\django\core\management\__init__.py", line 381 in execute_from_command_line
  File "manage.py", line 17 in main
  File "manage.py", line 21 in <module>

Edit2：

class Stick1(models.Model):
  TYPE = {
    ('1', 'test1'),
    ('2', 'test2'),
    ('3', 'test3'),
    ('4', 'test4'),
    ('5', 'test5'),
    ('6', 'test6'),
  }
  option = models.CharField(max_length=1, choices=TYPE, default='1')

Django迁移。AlterField选项的顺序已更改。我可以删除吗？

0 个答案: