django makemigrations試圖添加外鍵到現有模型時失敗

我有一個模型，我試圖添加一個foreignkey字段。django makemigrations試圖添加外鍵到現有模型時失敗

這是字段的定義：

part_of_speech = models.ForeignKey('PartOfSpeech', help_text=_('Translation | part_of_speech | help_text'), verbose_name = _('Translation','part_of_speech'))

當我嘗試執行makemigrations命令，我收到以下錯誤：

Migrations for 'dictionary': 
    0024_translation_part_of_speech.py: 
    - Add field part_of_speech to translation 
Traceback (most recent call last): 
    File "manage.py", line 10, in <module> 
    execute_from_command_line(sys.argv) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line 
    utility.execute() 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/core/management/__init__.py", line 330, in execute 
    self.fetch_command(subcommand).run_from_argv(self.argv) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/core/management/base.py", line 390, in run_from_argv 
    self.execute(*args, **cmd_options) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/core/management/base.py", line 441, in execute 
    output = self.handle(*args, **options) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 143, in handle 
    self.write_migration_files(changes) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 171, in write_migration_files 
    migration_string = writer.as_string() 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/db/migrations/writer.py", line 146, in as_string 
    operation_string, operation_imports = OperationWriter(operation).serialize() 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/db/migrations/writer.py", line 104, in serialize 
    _write(arg_name, arg_value) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/db/migrations/writer.py", line 74, in _write 
    arg_string, arg_imports = MigrationWriter.serialize(_arg_value) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/db/migrations/writer.py", line 354, in serialize 
    return cls.serialize_deconstructed(path, args, kwargs) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/db/migrations/writer.py", line 248, in serialize_deconstructed 
    arg_string, arg_imports = cls.serialize(arg) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/db/migrations/writer.py", line 276, in serialize 
    value = force_text(value) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/utils/encoding.py", line 92, in force_text 
    s = six.text_type(s) 
    File "/Users/user/.virtualenvs/env2/lib/python2.7/site-packages/django/utils/functional.py", line 141, in __text_cast 
    return func(*self.__args, **self.__kw) 
TypeError: ugettext() takes exactly 1 argument (2 given)

來源

2015-08-20 JayGee

你試圖添加'空= TRUE'和'空白= TRUE'？ – Gocht

是的。我有。在這種情況下，我得到了同樣的錯誤。 – JayGee

幫助文本聲明（調用ugetttext）是格式不正確。爲了解決這個問題，改變這種：

verbose_name = _('Translation','part_of_speech')

這樣：

verbose_name = _('Translation | part_of_speech')

來源

2015-08-20 18:24:47 JayGee

django makemigrations試圖添加外鍵到現有模型時失敗

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