feat: created custom django_cms serializer to be able to handle django cms filer images

Author: mihalikv

CHANGELOG.rst

@@ -6,7 +6,7 @@ Changelog
 ==================
 
 * Added support for custom serializer
-* Added serializer `django_cms` to be able to serializer `filer.Image`
+* Added serializer `django_cms` to be able to serialize `filer.Image`
 
 1.0.0 (2020-09-02)
 ==================

djangocms_transfer/datastructures.py

@@ -7,8 +7,7 @@
 
 from cms.models import CMSPlugin
 
-from .utils import get_plugin_model
-
+from .utils import get_plugin_model, get_serializer_name
 
 BaseArchivedPlugin = namedtuple(
     'ArchivedPlugin',
@@ -35,7 +34,7 @@ def deserialized_instance(self):
         }
 
         # TODO: Handle deserialization error
-        return list(deserialize('python', [data]))[0]
+        return list(deserialize(get_serializer_name(), [data]))[0]
 
     @transaction.atomic
     def restore(self, placeholder, language, parent=None, with_data=True):

djangocms_transfer/helpers.py

@@ -2,7 +2,7 @@
 
 from django.core import serializers
 
-from .utils import get_plugin_fields, get_plugin_model
+from .utils import get_plugin_fields, get_plugin_model, get_serializer_name
 
 
 def get_bound_plugins(plugins):
@@ -41,7 +41,7 @@ def get_plugin_data(plugin, only_meta=False):
         custom_data = None
     else:
         plugin_fields = get_plugin_fields(plugin.plugin_type)
-        _plugin_data = serializers.serialize('python', (plugin,), fields=plugin_fields)[0]
+        _plugin_data = serializers.serialize(get_serializer_name(), (plugin,), fields=plugin_fields)[0]
         custom_data = _plugin_data['fields']
 
     plugin_data = {

djangocms_transfer/utils.py

@@ -34,3 +34,8 @@ def get_plugin_fields(plugin_type):
 @lru_cache()
 def get_plugin_model(plugin_type):
     return get_plugin_class(plugin_type).model
+
+
+def get_serializer_name(default='python'):
+    from django.conf import settings
+    return getattr(settings, 'DJANGO_CMS_TRANSFER_SERIALIZER', default)