Perfect. Thank you!
On Thu, Mar 19, 2009 at 3:36 PM, Alex Gaynor <alex.gay...@gmail.com> wrote:
>
>
> On Thu, Mar 19, 2009 at 3:31 PM, Michael Repucci <mich...@repucci.org>wrote:
>
>>
>> I'm struggling with what seems like should be a very straightforward
>> task. I have a model with a field named image of type ImageField, and
>> I'd like to do custom validation via the model form's clean_image
>> method based on the height and width (in pixels) of the image.
>>
>> If I just grab the image object from the cleaned_data dictionary it
>> doesn't have attributes height and width, and if I specify the
>> height_field and width_field parameters in the ImageField
>> instantiation, I don't have access to those fields from the
>> clean_image method (or do I?).
>>
>> Is there a simple way to do this that I'm missing?
>>
>>
> Yep, here's an example of a method I use:
>
> def clean_image(self):
> from django.core.files.images import get_image_dimensions
> w, h = get_image_dimensions(self.cleaned_data['image'])
> if h > 500 or w > 800:
> raise forms.ValidationError("The image is too large, the
> maximum size is 800x500, your image was %sx%s." % (w, h))
> return self.cleaned_data['image']
>
>
> --
> "I disapprove of what you say, but I will defend to the death your right to
> say it." --Voltaire
> "The people's good is the highest law."--Cicero
>
> >
>
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