I d like to simply do the following without raising an exception if the item doesn t exist:
User.objects.get(email_address = email_address)
在Django,这是否是一个捷径? 我只想检查用户是否有特定的电子邮件地址。
您可使用查询方法<代码>exists()。
http://docs.djangoproject.com/en/dev/ref/models/querysets/#django.db.models.query.QuerySet.exists”rel=“nofollow”>django docs :
exists()
Returns True if the QuerySet contains any results, and False if not.
In your case:
User.objects.filter(email_address=email_address).exists()
如果该电子邮件地址有不止一个用户,exists仍可返回Tru,而get()将产生一个编码
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