Add HTML Attributes in Model

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class formfield_widget_attrs(object):
    u'''
    Add HTML attributes to Form Fields created by ModelForm:
    Example: <input> tag should have attribute size=60: 

    class MyModel(models.Model):
        name=models.CharField()
        name.formfield=modelutils.formfield_widget_attrs(name.formfield, size='60')
    '''
    def __init__(self, method, **kwargs):
        self.method=method
        self.kwargs=kwargs
    def __call__(self, *args, **kwargs):
        formfield_instance=self.method(*args, **kwargs)
        formfield_instance.widget.attrs.update(self.kwargs)
        return formfield_instance

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Comments

humphreymurray (on May 19, 2008):

I wouldn't include html formating in the model. It defeats the purpose of having separator between the model and the form. The form would be a better place for this logic?

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jedie (on July 25, 2008):

My solution: http://www.djangosnippets.org/snippets/916/

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guettli (on August 18, 2008):

Reply to humphreymurray: I think it is OK to have this in the model. You can set the default size there. Of course custom models can override this.

And: I don't but HTML in the model. I just pass a dictionary which map do attributes. There are no [HTML_REMOVED]. I use it only for the attribute size and class.

I won't use it for things like "onchange".

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