我有一个包含数百个迁移的项目。当我尝试运行测试时，会显示堆栈跟踪：
./manage.py test
Creating test database for alias 'default'...
Traceback (most recent call last):
File "/project/lib/python3.5/site-packages/django/db/backends/utils.py", line 62, in execute
return self.cursor.execute(sql)
File "/project/lib/python3.5/site-packages/django/db/backends/sqlite3/base.py", line 326, in execute
return Database.Cursor.execute(self, query)
sqlite3.OperationalError: near "USING": syntax error
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/project/lib/python3.5/site-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
utility.execute()
File "/project/lib/python3.5/site-packages/django/core/management/__init__.py", line 356, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/project/lib/python3.5/site-packages/django/core/management/commands/test.py", line 29, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/project/lib/python3.5/site-packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/project/lib/python3.5/site-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/project/lib/python3.5/site-packages/django/core/management/commands/test.py", line 62, in handle
failures = test_runner.run_tests(test_labels)
File "/project/lib/python3.5/site-packages/django/test/runner.py", line 601, in run_tests
old_config = self.setup_databases()
File "/project/lib/python3.5/site-packages/django/test/runner.py", line 546, in setup_databases
self.parallel, **kwargs
File "/project/lib/python3.5/site-packages/django/test/utils.py", line 187, in setup_databases
serialize=connection.settings_dict.get('TEST', {}).get('SERIALIZE', True),
File "/project/lib/python3.5/site-packages/django/db/backends/base/creation.py", line 69, in create_test_db
run_syncdb=True,
File "/project/lib/python3.5/site-packages/django/core/management/__init__.py", line 131, in call_command
return command.execute(*args, **defaults)
File "/project/lib/python3.5/site-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/project/lib/python3.5/site-packages/wagtail_modeltranslation/management/commands/migrate_translation.py", line 25, in handle
super(Command, self).handle(*args, **options)
File "/project/lib/python3.5/site-packages/django/core/management/commands/migrate.py", line 204, in handle
fake_initial=fake_initial,
File "/project/lib/python3.5/site-packages/django/db/migrations/executor.py", line 115, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/project/lib/python3.5/site-packages/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/project/lib/python3.5/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "/project/lib/python3.5/site-packages/django/db/migrations/migration.py", line 129, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/project/lib/python3.5/site-packages/django/db/migrations/operations/special.py", line 108, in database_forwards
self._run_sql(schema_editor, self.sql)
File "/project/lib/python3.5/site-packages/django/db/migrations/operations/special.py", line 133, in _run_sql
schema_editor.execute(statement, params=None)
File "/project/lib/python3.5/site-packages/django/db/backends/base/schema.py", line 136, in execute
cursor.execute(sql, params)
File "/project/lib/python3.5/site-packages/django/db/backends/utils.py", line 64, in execute
return self.cursor.execute(sql, params)
File "/project/lib/python3.5/site-packages/django/db/utils.py", line 94, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/project/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/project/lib/python3.5/site-packages/django/db/backends/utils.py", line 62, in execute
return self.cursor.execute(sql)
File "/project/lib/python3.5/site-packages/django/db/backends/sqlite3/base.py", line 326, in execute
return Database.Cursor.execute(self, query)
django.db.utils.OperationalError: near "USING": syntax error
仅凭此，我似乎无法找出原因（可能是某个地方的迁移）。 当我尝试使用postgres数据库运行相同的命令时，出现错误
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/project/lib/python3.5/dist-packages/django/core/management/__init__.py", line 364, in execute_from_command_line
utility.execute()
File "/project/lib/python3.5/dist-packages/django/core/management/__init__.py", line 356, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/project/lib/python3.5/dist-packages/django/core/management/commands/test.py", line 29, in run_from_argv
super(Command, self).run_from_argv(argv)
File "/project/lib/python3.5/dist-packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/project/lib/python3.5/dist-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/project/lib/python3.5/dist-packages/django/core/management/commands/test.py", line 62, in handle
failures = test_runner.run_tests(test_labels)
File "/project/lib/python3.5/dist-packages/django/test/runner.py", line 601, in run_tests
old_config = self.setup_databases()
File "/project/lib/python3.5/dist-packages/django/test/runner.py", line 546, in setup_databases
self.parallel, **kwargs
File "/project/lib/python3.5/dist-packages/django/test/utils.py", line 187, in setup_databases
serialize=connection.settings_dict.get('TEST', {}).get('SERIALIZE', True),
File "/project/lib/python3.5/dist-packages/django/db/backends/base/creation.py", line 69, in create_test_db
run_syncdb=True,
File "/project/lib/python3.5/dist-packages/django/core/management/__init__.py", line 131, in call_command
return command.execute(*args, **defaults)
File "/project/lib/python3.5/dist-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/project/lib/python3.5/dist-packages/wagtail_modeltranslation/management/commands/migrate_translation.py", line 25, in handle
super(Command, self).handle(*args, **options)
File "/project/lib/python3.5/dist-packages/django/core/management/commands/migrate.py", line 204, in handle
fake_initial=fake_initial,
File "/project/lib/python3.5/dist-packages/django/db/migrations/executor.py", line 115, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/project/lib/python3.5/dist-packages/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/project/lib/python3.5/dist-packages/django/db/migrations/executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "/project/lib/python3.5/dist-packages/django/db/migrations/migration.py", line 129, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/project/lib/python3.5/dist-packages/django/db/migrations/operations/fields.py", line 221, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "/project/lib/python3.5/dist-packages/django/db/backends/base/schema.py", line 531, in alter_field
old_db_params, new_db_params, strict)
File "/project/lib/python3.5/dist-packages/django/db/backends/postgresql/schema.py", line 112, in _alter_field
new_db_params, strict,
File "/project/lib/python3.5/dist-packages/django/db/backends/base/schema.py", line 635, in _alter_field
new_default = self.effective_default(new_field)
File "/project/lib/python3.5/dist-packages/django/db/backends/base/schema.py", line 245, in effective_default
default = field.get_db_prep_save(default, self.connection)
File "/project/lib/python3.5/dist-packages/django/db/models/fields/__init__.py", line 770, in get_db_prep_save
prepared=False)
File "/project/lib/python3.5/dist-packages/django/db/models/fields/__init__.py", line 762, in get_db_prep_value
value = self.get_prep_value(value)
File "/project/lib/python3.5/dist-packages/django/db/models/fields/__init__.py", line 1043, in get_prep_value
return self.to_python(value)
File "/project/lib/python3.5/dist-packages/django/db/models/fields/__init__.py", line 1036, in to_python
params={'value': value},
django.core.exceptions.ValidationError: ["'N' value must be either True or False."]
由于我在整个项目中都使用值N，所以这也无济于事。
我该如何找到导致这些错误的迁移？
答案 0 :(得分：2)
您可以在运行测试时添加--verbosity中的-v选项，这会给测试的输出增加更多的详细信息：
python manage.py test -v 2
或
python manage.py test --verbosity=2
第2级应向您显示所有迁移。级别3甚至显示了更多详细信息，但我认为这不会为您带来任何好处。
这将向您显示导致问题的迁移。