ella/django-markup — comment on commit 299e3dc8cff3c82d187487c33637d2c0d0dd484f
File:  line 0
By czervenka:

Now it seems to me that the clean way would be to override Field.get_db_prep_value() method because django 1.3+ supports more databases. There is no way to find out which engine will be used for saving the filed outside of the field instance.