尝试从模型填充表单字段时出现NameError

时间:2011-03-22 09:06:56

标签: django django-models django-forms

我目前正在探索django表格并且有一个问题我希望有人可以帮助我。

我正在关注取自Creating forms from models | Django documentation

的示例

我有表格;

# forms.py

from django import forms
from my_project.my_app.models import Author

class AuthorForm(forms.Form):
    name = forms.CharField(max_length=100)
    title = forms.CharField(max_length=3,
            widget=forms.Select(choices=TITLE_CHOICES))
    birth_date = forms.DateField(required=False)

和模型;

#models.py

from django.db import models

TITLE_CHOICES = (
    ('MR', 'Mr.'),
    ('MRS', 'Mrs.'),
    ('MS', 'Ms.'),
)
class Author(models.Model):
    name = models.CharField(max_length=100)
    title = models.CharField(max_length=3, choices=TITLE_CHOICES)
    birth_date = models.DateField(blank=True, null=True)

    def __unicode__(self):
        return self.name

但是,当我尝试访问表单时收到以下错误;

  

/

处的NameError      

名称'TITLE_CHOICES'未定义

     

请求方法:GET请求URL:     http://192.168.1.111:8000/ Django   版本:1.2.4例外类型:     NameError异常值:name   'TITLE_CHOICES'未定义

我是否应该做些什么来允许forms.py访问models.py中的TITLE_CHOICES?

提前致谢。

1 个答案:

答案 0 :(得分:3)

应该在课堂内定义

TITLE_CHOICES

from django.db import models

class Author(models.Model):
    TITLE_CHOICES = (
        ('MR', 'Mr.'),
        ('MRS', 'Mrs.'),
        ('MS', 'Ms.'),
    )
    name = models.CharField(max_length=100)
    title = models.CharField(max_length=3, choices=TITLE_CHOICES)
    birth_date = models.DateField(blank=True, null=True)

    def __unicode__(self):
        return self.name

以表格形式:

from django import forms
from my_project.my_app.models import Author

class AuthorForm(forms.Form):
    name = forms.CharField(max_length=100)
    title = forms.CharField(max_length=3,
            widget=forms.Select(choices=Author.TITLE_CHOICES))
    birth_date = forms.DateField(required=False)