Just make your own Input class and alter the render callable to whatever you want. As an example, here's one I made to add in a little avatar. It's quick and dirty, in that it's not DRY, but it serves a purpose:
class AvatarInput(ClearableFileInput):
'''renders the input file as an avatar image, and removes the 'currently' html'''
template_with_initial = u'%(initial)s %(clear_template)s<br />%(input_text)s: %(input)s'
def render(self, name, value, attrs=None):
substitutions = {
'input_text': self.input_text,
'clear_template': '',
'clear_checkbox_label': self.clear_checkbox_label,
}
template = u'%(input)s'
substitutions['input'] = super(AvatarInput, self).render(name, value, attrs)
if value and hasattr(value, "url"):
template = self.template_with_initial
substitutions['initial'] = (u'<img src="%s" width="60" height="60"></img>'
% (escape(value.url)))
if not self.is_required:
checkbox_name = self.clear_checkbox_name(name)
checkbox_id = self.clear_checkbox_id(checkbox_name)
substitutions['clear_checkbox_name'] = conditional_escape(checkbox_name)
substitutions['clear_checkbox_id'] = conditional_escape(checkbox_id)
substitutions['clear'] = CheckboxInput().render(checkbox_name, False, attrs={'id': checkbox_id})
substitutions['clear_template'] = self.template_with_clear % substitutions
return mark_safe(template % substitutions)
Then just drop it into your form class Meta:
class Meta:
model = <your model>
widgets = {'your-field-name': AvatarInput()
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