ModelForm and error_css_class

Question

my problem is simple. Where the right place for a custom error_css_class value is when using ModelForm?

I tried this:

class ToolForm(ModelForm):
error_css_class = 'wrong_list'
class Meta:
    model = Tool
    widgets = {
               'name' : TextInput(attrs={'class': 'small_input corners'}),
               'description' : Textarea(attrs={'cols': 20, 'rows': 5, 'class': 'text corners'}),
               'stocks' : TextInput(attrs={'class': 'small_input corners'}),
               'state' : Textarea(attrs={'cols': 25, 'rows': 6, 'class': 'text corners'}),
    }

Also, I tried as a class Meta value. Doesn’t work either.

By now I just changed my css to ‘errorlist’ (u know, the default one), buuut this kind of doubts make me unhappy :P.

Any help is appreciated.

Asked By: Alex Pi

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Source

Answer 1

You can define your own error list class by inherting from django’s ErrorList. See the docs for details:

Customizing the error list format

Note that you’ll have to override the method to output the full HTML and can’t just replace CSS class. You could call the base method and do a string replace on “class=”errolist”” and return the output.

Answered By: ars

Answer 2

create custom class thath extends ErrorList

class CustomErrorList(ErrorList):
    def get_context(self):
        return {
            "errors": self,
            "error_class": "your css class",
        }

And add it in your form class:

class CustomForm(ModelForm):
def init(self, *args, **kwargs):
super().init(*args, **kwargs)
self.error_class = CustomErrorList

Answered By: Усен Утебаев

ModelForm and error_css_class

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