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forms.Widget.value_from_datadict()

value_from_datadict(data, files, name) [source]

Given a dictionary of data and this widget’s name, returns the value of this widget. files may contain data coming from request.FILES. Returns None if a value wasn’t provided. Note also that value_from_datadict may be called more than once during handling of form data, so if you customize it and add expensive processing, you should implement some caching mechanism yourself.

Links:

https://docs.djangoproject.com/en/1.10/ref/forms/widgets/#django.forms.Widget.value_from_datadict

doc_Django

2016-10-09 18:37:13

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