title: Django imagekit and dynamic paths
body: <p>I'm using imagekit provided at: <a href="https://github.com/jdriscoll/django-imagekit" rel="nofollow">imagekit</a></p>
  
  <p>So, I've defined two class model:</p>
  
  <pre><code>class Photo(models.Model):
      #photo_wrapper = models.ForeignKey(PhotoWrapper, blank=True, null=True)
      original_image = models.ImageField(upload_to='static/photos')
      thumbnail = ImageSpec([Adjust(contrast=1.2, sharpness=1.1),
              resize.Crop(50, 50)], image_field='original_image',
              format='JPEG', quality=90)
      num_views = models.PositiveIntegerField(editable=False, default=0)
  
      class IKOptions:
          # This inner class is where we define the ImageKit options for the model
          spec_module = 'myspecs.specs'
          cache_dir = 'static/photos'
          image_field = 'original_image'
          save_count_as = 'num_views'
  
  class Country(models.Model):       
      country_name = models.CharField(max_length=250)        
      country_photo = models.ForeignKey(Photo, blank=True, null=True)
  
      def __unicode__(self):
              return '%s' % self.country_name 
  </code></pre>
  
  <p>The problem is that each photo is created in the "static/photos" path.
  My intent is to save the image and the thumbnail with a dynamic path, based on the country name.. </p>
  
  <p>For example, for the country "Argentina", the dynamic path will be "static/photos/Argentina/"</p>
  
  <p>How can I accomplish that?</p>