Django ModelForm自定义验证: How to access submitted field values

Question

我有以下模型表单，想要将自定义验证添加到名为“bilable_work”的字段。

如何访问在表单中提交的“项目”字段？我想检查项目的值(下面示例中的“p”)，但无法找到正确的语法，以便我可以测试提交的值。任何帮助将不胜感激。

class EntryForm(forms.ModelForm):
    class Meta:
        model = Entries
        exclude = ('billable_work','notes')  

    billable_work = forms.BooleanField()
    notes = forms.CharField(widget=forms.Textarea,required=False)

    def clean_billable_work(self):
        b = self.cleaned_data['billable_work']
        p = form.fields['project']

        if b == True and p == 523:
            raise forms.ValidationError(_("Entries cannot be both billable and NONE: Indirect."))
        return self.cleaned_data['billable_work']

Answer 1

我想你想覆盖 clean()模型上的方法而不是特定表单字段的干净方法。来自文档 -

This method should be used to provide custom model validation, and to modify attributes on your model if desired. For instance, you could use it to automatically provide a value for a field, or to do validation that requires access to more than a single field.

如果您确实想将验证放入表单中，则表单上的 clean() 方法可提供类似的功能(请参阅 docs )。