我正在构建一个包含电话号码字段的Django表单。我一直在提到这两个SO问题,以了解如何执行此操作:1,2。我创建了这个表单字段:
class ContactForm(forms.Form):
phone = forms.RegexField(
regex = r'^\+?[1-9]\d{1,14}$',
#regex = r'\+?\d{10,14}$',
error_messages = {'required', 'Phone number required'},
widget = forms.TextInput(attrs={'class': 'form-control'})
)
我在模板中显示字段:
<div>
<label for="id_phone">Your Phone Number</label>
{{ form.phone.errors }}
{{ form.phone }}
</div>
我理解正则表达式正在做什么,他们看起来对我来说是正确的。但是,如果我使用其中任何一个,我就会收到此错误:
ValueError at /business/contact/
dictionary update sequence element #0 has length 8; 2 is required
...
Exception Location: /srv/http/example.com/venvs/dev/local/lib/python2.7/site-packages/django/forms/fields.py in __init__, line 125
(stacktrace...)
widget = forms.TextInput(attrs={'class': 'form-control'})
super(RegexField, self).__init__(max_length, min_length, *args, **kwargs)
super(CharField, self).__init__(*args, **kwargs)
messages.update(error_messages or {})
(end of stacktrace)
任何人都可以看到导致此错误的原因吗?它似乎是由正则表达式引起的。
答案 0 :(得分:2)
我刚发现错误。它在这一行:
error_messages = {'required', 'Phone number required'},
我需要用“:”替换“,”:
error_messages = {'required': 'Phone number required'},