错误django.db.utils.ProgrammingError:关系；myApp“音频文件”；尝试重命名模型时不存在

我有一个名为

AudioFile

的模型，它用于多个manytomone和manytomone关系中。我尝试了一个简单的重命名迁移（如建议的那样）

看起来像这样：

from __future__ import unicode_literals

from django.db import migrations


class Migration(migrations.Migration):

    dependencies = [
        ('myApp', '0004_feedback'),
    ]

    operations = [
        migrations.RenameModel('AudioFile', 'MediaFile')
    ]

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
    utility.execute()
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 355, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 204, in handle
    fake_initial=fake_initial,
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/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 "/Users/mac/.virtualenvs/myVenv/lib/python3.6/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 "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/migrations/migration.py", line 129, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/migrations/operations/models.py", line 369, in database_forwards
    to_field,
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 515, in alter_field
    old_db_params, new_db_params, strict)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/postgresql/schema.py", line 112, in _alter_field
    new_db_params, strict,
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 773, in _alter_field
    self.execute(self._create_fk_sql(model, new_field, "_fk_%(to_table)s_%(to_column)s"))
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 120, in execute
    cursor.execute(sql, params)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 80, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 65, in execute
    return self.cursor.execute(sql, params)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/utils/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 65, in execute
    return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "myApp_audiofile" does not exist

但不是工作，而是得到一个如下所示的错误回溯：

from __future__ import unicode_literals

from django.db import migrations


class Migration(migrations.Migration):

    dependencies = [
        ('myApp', '0004_feedback'),
    ]

    operations = [
        migrations.RenameModel('AudioFile', 'MediaFile')
    ]

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
    utility.execute()
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 355, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
    output = self.handle(*args, **options)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 204, in handle
    fake_initial=fake_initial,
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/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 "/Users/mac/.virtualenvs/myVenv/lib/python3.6/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 "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/migrations/migration.py", line 129, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/migrations/operations/models.py", line 369, in database_forwards
    to_field,
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 515, in alter_field
    old_db_params, new_db_params, strict)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/postgresql/schema.py", line 112, in _alter_field
    new_db_params, strict,
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 773, in _alter_field
    self.execute(self._create_fk_sql(model, new_field, "_fk_%(to_table)s_%(to_column)s"))
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 120, in execute
    cursor.execute(sql, params)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 80, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 65, in execute
    return self.cursor.execute(sql, params)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/utils.py", line 94, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/utils/six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "/Users/mac/.virtualenvs/myVenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 65, in execute
    return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: relation "myApp_audiofile" does not exist

---

检查数据库中是否存在AudioFile表。它确实存在。您应该检查表名是否与

myApp\u音频文件

完全相同。它是由迁移自动生成的。我可以来回迁移，否则会非常好。只有更改模型名称才会中断everything@DavidNathan如何解决此问题？请检查数据库中是否存在AudioFile表。它确实存在。您应该检查表名是否与

myApp\u音频文件

完全相同。它是由迁移自动生成的。我可以来回迁移，否则会非常好。只有更改模型名称才会中断everything@DavidNathan你如何解决这个问题？