fix attributes mixin

Author: fsbraun

djangocms_frontend/common/__init__.py

@@ -2,7 +2,7 @@
 
 from djangocms_frontend import settings
 
-from .attributes import AttributesMixin
+from .attributes import AttributesMixin, AttributesFormMixin
 from .title import TitleFormMixin, TitleMixin
 
 __common = {
@@ -32,6 +32,7 @@
     "TitleMixin",
     "TitleFormMixin",
     "AttributesMixin",
+    "AttributesFormMixin",
     "BackgroundFormMixin",
     "BackgroundMixin",
     "ResponsiveFormMixin",

djangocms_frontend/common/attributes.py

@@ -1,5 +1,7 @@
 from django.utils.translation import gettext_lazy as _
+from entangled.forms import EntangledModelFormMixin
 
+from djangocms_frontend.fields import AttributesFormField
 from djangocms_frontend.helpers import insert_fields
 
 
@@ -25,3 +27,13 @@ def get_fieldsets(self, request, obj=None):
             blockattrs=self.block_attr,
             position=-1,  # Always last
         )
+
+
+class AttributesFormMixin(EntangledModelFormMixin):
+    class Meta:
+        entangled_fields = {
+            "config": [
+                "attributes",
+            ]
+        }
+    attributes = AttributesFormField()

djangocms_frontend/component_base.py

@@ -12,6 +12,13 @@
 from .ui_plugin_base import CMSUIPluginBase
 
 
+def _import_or_empty(module, name):
+    try:
+        return importlib.import_module(module).__dict__[name]
+    except (ImportError, KeyError):
+        return type(name, (), {})
+
+
 def _get_mixin_classes(mixins: list, suffix: str = "") -> list[type]:
     """Find and import mixin classes from a list of mixin strings"""
     mixins = [
@@ -20,7 +27,8 @@ def _get_mixin_classes(mixins: list, suffix: str = "") -> list[type]:
         else ("djangocms_frontend.common", f"{mixin}{suffix}Mixin")
         for mixin in mixins
     ]
-    return [importlib.import_module(module).__dict__[name] for module, name in mixins]
+
+    return [_import_or_empty(module, name) for module, name in mixins]
 
 
 class Slot: