Question

我正在编写目前部署在heroku上的django应用程序。我所做的最新迁移引发了一个我不理解的错误，见下文。这个错误不会出现在本地，也许是因为我在本地使用sqlite和在heroku上使用postgres，但这只是猜测。我在本地生成了迁移并推送它。

我使用django 1.10和python 2.7的虚拟环境。

当我尝试运行迁移时，这是我的终端输出：

heroku run python manage.py migrate
Running python manage.py migrate on ⬢ limitless-lake-59470... up, run.3202 (Free)
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, jobs, sessions
Running migrations:
  Applying jobs.0015_auto_20161230_2039...Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line
    utility.execute()
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/__init__.py", line 359, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 294, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/base.py", line 345, in execute
    output = self.handle(*args, **options)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/core/management/commands/migrate.py", line 204, in handle
    fake_initial=fake_initial,
  File "/app/.heroku/python/lib/python2.7/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 "/app/.heroku/python/lib/python2.7/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 "/app/.heroku/python/lib/python2.7/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/migrations/migration.py", line 129, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/migrations/operations/fields.py", line 204, in database_forwards
    schema_editor.alter_field(from_model, from_field, to_field)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/base/schema.py", line 495, in alter_field
    old_db_params, new_db_params, strict)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/postgresql/schema.py", line 117, in _alter_field
    new_db_params, strict,
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/base/schema.py", line 649, in _alter_field
    params,
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/base/schema.py", line 112, in execute
    cursor.execute(sql, params)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/utils.py", line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/app/.heroku/python/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
django.db.utils.DataError: invalid input syntax for integer: ""

Answer 1

清除数据库并从头开始应用所有迁移后错误消失

Heroku：运行django迁移时出错

1 个答案: