gistfile1.txt

        # Changing field 'Post.main_image_full'
        db.alter_column(u'djangocms_blog_post', 'main_image_full_id', self.gf('django.db.models.fields.related.ForeignKey')(null=True, on_delete=models.SET_NULL, to=orm['filer.ThumbnailOption']))

        # Changing field 'Post.main_image_thumbnail'
        db.alter_column(u'djangocms_blog_post', 'main_image_thumbnail_id', self.gf('django.db.models.fields.related.ForeignKey')(null=True, on_delete=models.SET_NULL, to=orm['filer.ThumbnailOption']))
        
        
        # Changing field 'Post.main_image_full'
        db.alter_column(u'djangocms_blog_post', 'main_image_full_id', self.gf('django.db.models.fields.related.ForeignKey')(null=True, to=orm['cmsplugin_filer_image.ThumbnailOption'], on_delete=models.SET_NULL))

        # Changing field 'Post.main_image_thumbnail'
        db.alter_column(u'djangocms_blog_post', 'main_image_thumbnail_id', self.gf('django.db.models.fields.related.ForeignKey')(null=True, to=orm['cmsplugin_filer_image.ThumbnailOption'], on_delete=models.SET_NULL))