如何解决我在 django 的模型中添加了一个时间字段,当我应用迁移时出现错误,当我在模型中删除该字段时仍然出现错误
错误:
Operations to perform:
Apply all migrations: admin,auth,contenttypes,sessions,tohome
Running migrations:
Applying tohome.0003_auto_20210323_1611...Traceback (most recent call last):
File "manage.py",line 22,in <module>
main()
File "manage.py",line 18,in main
execute_from_command_line(sys.argv)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-
packages\django\core\management\__init__.py",line 401,in execute_from_command_line
utility.execute()
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-
packages\django\core\management\__init__.py",line 395,in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-packages\django\core\management\base.py",line 330,in run_from_argv
self.execute(*args,**cmd_options)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-packages\django\core\management\base.py",line 371,in execute
output = self.handle(*args,**options)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-packages\django\core\management\base.py",line 85,in wrapped
res = handle_func(*args,**kwargs)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-
packages\django\core\management\commands\migrate.py",line 245,in handle
fake_initial=fake_initial,File "C:\Users\madhu\Desktop\Django work\work_env\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:\Users\madhu\Desktop\Django work\work_env\lib\site-
packages\django\db\migrations\executor.py",line 147,in _migrate_all_forwards
state = self.apply_migration(state,migration,fake_initial=fake_initial)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-
packages\django\db\migrations\executor.py",line 227,in apply_migration
state = migration.apply(state,schema_editor)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-
packages\django\db\migrations\migration.py",line 124,in apply
operation.database_forwards(self.app_label,schema_editor,old_state,project_state)
File "C:\Users\madhu\Desktop\Django work\work_env\lib\site-
packages\django\db\migrations\operations\fields.py",line 106,in database_forwards
field,
) 文件“C:\Users\madhu\Desktop\Django work\work_env\lib\site-packages\django\utils\dateparse.py”,行 90、在parse_time 匹配 = time_re.match(value) 类型错误:预期的字符串或类似字节的对象
models.py
from django.db import models
class Task(models.Model):
title = models.CharField(max_length =200)
complete = models.BooleanField(default = False,blank=True)
created = models.DateTimeField(auto_Now=True)
settime = models.TimeField((""),auto_Now=False,auto_Now_add=False)
def __str__(self):
return self.title
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