title: Get EXIF Data from ImageField Django 2.0
body: <p>I'm on this task of extracting the exif data of a photo uploaded through DJANGO 2.1.2, </p>
  
  <p>Here's my model.py</p>
  
  <p>UPDATED MODEL:</p>
  
  <pre><code>class UploadedImage(models.Model):
      image = models.ImageField(
          "Uploaded image", upload_to=scramble_uploaded_filename, height_field='height', width_field='width')
      uploaded_at = models.DateTimeField(default=timezone.now)
      width = models.PositiveIntegerField(editable = False)
      height = models.PositiveIntegerField(editable = False ) 
      camera = models.CharField(max_length=10, editable = False)
      latitud = models.CharField(max_length=20, editable = False)
      longitud = models.CharField(max_length=20, editable = False)
      meta = ExifField(
          source='image',
          denormalized_fields={
              'camera': exifgetter('Model'),
              'latitud': exifgetter('GPSLatitude'),
              'longitud': exifgetter('GPSLongitude'),
          },
      )
  </code></pre>
  
  <p>Some guidance of how to work with this model would gladly help.</p>