Paste #27

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posted on Nov 18, 2009 11:30:50 AM

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from kay.utils import forms
from kay.utils.validators import ValidationError

class ImageField(forms.FileField):
  allowed_content_types = ('image/jpeg', 'image/png', 'image/gif')
  def convert(self, value):
    if value.content_type not in self.allowed_content_types:
      raise ValidationError("Invalid file type for cover.")
    return super(ImageField, self).convert(value)