我使用Python3，Django == 1.9.9，psql（PostgreSQL）9.5.4实现ArrayField，但如果我这样做：
[[0, 4.27, 12, 12, 77, 4], [2.01, 3.39, 5, 6, 7, 1]]
我收到此错误，此处附有完整的Traceback：
from django.utils.translation import ugettext_lazy as _
*
*
exceptions = ArrayField(models.CharField(max_length=200), _('Exceptions'), default=list, help_text=exceptions_help_text)
虽然Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
utility.execute()
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/core/management/__init__.py", line 345, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/core/management/base.py", line 348, in run_from_argv
self.execute(*args, **cmd_options)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/core/management/base.py", line 399, in execute
output = self.handle(*args, **options)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 200, in handle
executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
File "/srv/virtualenvs/myproj/lib/python3.5/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/virtualenvs/myproj/lib/python3.5/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/virtualenvs/myproj/lib/python3.5/site-packages/django/db/migrations/executor.py", line 198, in apply_migration
state = migration.apply(state, schema_editor)
File "/srv/virtualenvs/myproj/lib/python3.5/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/virtualenvs/myproj/lib/python3.5/site-packages/django/db/migrations/operations/fields.py", line 201, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 482, in alter_field
old_db_params, new_db_params, strict)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/backends/postgresql/schema.py", line 116, in _alter_field
new_db_params, strict,
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 634, in _alter_field
params,
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 110, in execute
cursor.execute(sql, params)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/backends/utils.py", line 79, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/utils.py", line 95, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/srv/virtualenvs/myproj/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: syntax error at or near "Exceptions"
LINE 1: ..._wms" ALTER COLUMN "exceptions" TYPE varchar(200)[Exceptions...
有效：
makemigrations这是一个错误吗？
如果不能如何设置字段名称？
答案 0 :(得分：2)
从链接的代码中可以看出，第二个位置参数是字段的大小，这就是Django试图将它传递给Postgres的原因，而这通常不会对名称进行处理。< / p>
如果要定义详细名称，请将其作为kwarg传递：
exceptions = ArrayField(models.CharField(max_length=200), verbose_name=_('Exceptions'), default=...)