我正在向我的Django应用程序中的表单和自定义字段添加自定义验证。我希望能够在触发错误时修改字段的值。例如,如果存在错误,则应重新显示表单,其中包含已由clean()更正的字段值,并显示错误消息“数据已更正如下。再次单击保存以确认这些更改是否正确”。
我尝试过像这样在cleaned_data[]中返回修改后的数据,但不起作用。它会正确显示错误,但在重新显示表单时,不会使用更正后的HTML更新字段值。
class T34AtividadeForm(ModelForm):
def clean(self):
# Return cleaned html
error,html = fix_imgs(cleaned_data.get("a34_descricao"))
if error:
msg = u'Data has been corrected below. Click save again to confirm if these changes are OK';
self._errors['a34_descricao'] = ErrorList([msg])
# This doesn't work
cleaned_data["a34_descricao"] = html
# This doesn't work either
self.a34_descricao = html
return cleaned_data
我也想对字段做同样的事情,但由于错误是由异常触发的,所以我没有机会返回更正后的值。与form clean()方法类似,错误会正确显示,但值不会更新。
class HTMLField(CharField):
widget = HTMLTextarea
def clean(self, value):
value = super(HTMLField,self).clean(value)
error,html = fix_imgs(value)
if error:
# This doesn't work
self.value = html
raise forms.ValidationError(u'Data has been corrected below. Click save again to confirm if these changes are OK.')
return html
发布于 2009-03-17 14:11:49
更改clean方法中的self数据以更改显示的值
发布于 2015-11-25 04:22:21
更新clean()中的值的方法是更新表单数据字典中的值:
self.data["a34_stuff"] = "html"
这肯定是有效的。
发布于 2011-07-21 18:57:44
这是我尝试过的方法,对我来说是有效的:
inst = my_form.save(commit=False)
if not inst.a34_stuff: # or incorrect
inst.data["a34_stuff"] = "corrected"
https://stackoverflow.com/questions/654380
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