我正在努力学习Django,所以我几乎都是菜鸟。
我一直在尝试做两个小时的以下简单任务。我知道我的语法错误,但搜索Google&所以没有帮助我,所以我需要一些建议。
我正在尝试从Django模板更新数据库字段,但我需要帮助了解如何在我的 LanguageVersions views.py代码中更新 language_code_disabled 。
这是我的models.py文件代码:
class LanguageVersion(models.Model):
"""Language version selection for a user"""
user = models.ForeignKey(User)
language_code = models.CharField(max_length=32)
language_code_disabled = models.BooleanField(default=False)
def __unicode__(self):
return unicode(self.language_code)
这是我的views.py代码:
@login_required
def language_versions_enable(request):
if request.method == 'POST':
language_version = LanguageVersion.objects.get(pk=language_version_id, user=request.user)
# don't enable Language Version for currently selected language preference.
if language_version.language_code != request.user.userprofile.language_preference:
if language_version.language_code_disabled == True:
# if the users Language Version is disabled, enable the disabled Language Version.
LanguageVersion.language_code_disabled = False # THIS IS THE LINE OF CODE I DO NOT UNDERSTAND HOW TO WRITE!
messages.success(request,_('successfully enabled.'))
return redirect('language_versions')
请原谅这个简单的问题,但我无法理解这一点。
答案 0 :(得分:1)
您需要更新实例中的字段(不在类中)并调用此实例的save()
方法。
language_version.language_code_disabled = False
language_version.save()