Reading file data during form's clean method
- by Dominic Rodger
So, I'm working on implementing the answer to my previous question.
Here's my model:
class Talk(models.Model):
title = models.CharField(max_length=200)
mp3 = models.FileField(upload_to = u'talks/', max_length=200)
Here's my form:
class TalkForm(forms.ModelForm):
def clean(self):
super(TalkForm, self).clean()
cleaned_data = self.cleaned_data
if u'mp3' in self.files:
from mutagen.mp3 import MP3
if hasattr(self.files['mp3'], 'temporary_file_path'):
audio = MP3(self.files['mp3'].temporary_file_path())
else:
# What goes here?
audio = None # setting to None for now
...
return cleaned_data
class Meta:
model = Talk
Mutagen needs file-like objects - the first case (where the uploaded file is larger than the size of file handled in memory) works fine, but I don't know how to handle InMemoryUploadedFile that I get otherwise. I've tried:
# TypeError (coercing to Unicode: need string or buffer, InMemoryUploadedFile found)
audio = MP3(self.files['mp3'])
# TypeError (coercing to Unicode: need string or buffer, cStringIO.StringO found)
audio = MP3(self.files['mp3'].file)
# Hangs seemingly indefinitely
audio = MP3(self.files['mp3'].file.read())
Is there something wrong with mutagen, or am I doing it wrong?
