嘿,我现在正在研究某个项目,我想在每个模型中添加IP地址字段
ip_address = models.GenericIPAddressField()
像这样添加 现在,当我迁移它时,我得到了一个错误 像这样
if值和':'值: TypeError:类型为'int'的参数不可迭代
0005_remove_documentvault_ip_address
class Migration(migrations.Migration):
dependencies = [
('master', '0005_remove_documentvault_ip_address'),
]
operations = [
migrations.AddField(
model_name='documentvault',
name='ip_address',
field=models.GenericIPAddressField(default=1),
preserve_default=False,
),
]
错误消息:
Operations to perform:
Apply all migrations: admin, auth, contenttypes, master, sessions, users
Running migrations:
Applying master.0006_documentvault_ip_address...Traceback (most recent call last):
File "./manage.py", line 15, in <module>
execute_from_command_line(sys.argv)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/core/management/base.py", line 316, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/core/management/base.py", line 353, in execute
output = self.handle(*args, **options)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/core/management/base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 203, in handle
fake_initial=fake_initial,
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/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/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/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/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/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/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/migrations/operations/fields.py", line 84, in database_forwards
field,
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/backends/mysql/schema.py", line 42, in add_field
super().add_field(model, field)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 421, in add_field
definition, params = self.column_sql(model, field, include_default=True)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 168, in column_sql
default_value = self.effective_default(field)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 239, in effective_default
return field.get_db_prep_save(default, self.connection)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 790, in get_db_prep_save
return self.get_db_prep_value(value, connection=connection, prepared=False)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 1936, in get_db_prep_value
value = self.get_prep_value(value)
File "/home/panacea/Documents/src/easy tailor/EasyTailor/venv/lib/python3.5/site-packages/django/db/models/fields/__init__.py", line 1943, in get_prep_value
if value and ':' in value:
TypeError: argument of type 'int' is not iterable
答案 0 :(得分:2)
迁移(也许还有您的模型)具有default=1
。这不是有效的IP地址。
您可以用有效的IP地址替换模型中的默认值,也可以删除默认值并设置null=True
。
然后删除0006
迁移(为安全起见先备份它,或确保它在版本控制中)。最后,重新运行makemigrations并进行迁移。