Fix __module__ for component plugins

Author: fsbraun

djangocms_frontend/cms_plugins.py

@@ -1,4 +1,5 @@
 from cms.plugin_pool import plugin_pool
+from django.core.exceptions import ImproperlyConfigured
 
 from .ui_plugin_base import CMSUIPluginBase
 
@@ -11,7 +12,7 @@ def update_plugin_pool():
     from .component_pool import components
 
     # Loop through the values in the components' registry
-    for _, plugin, slot_plugins in components._registry.values():
+    for key, (_, plugin, slot_plugins) in components._registry.items():
         if plugin.__name__ not in plugin_pool.plugins:
             # Add the plugin to the global namespace
             globals()[plugin.__name__] = plugin
@@ -24,3 +25,8 @@ def update_plugin_pool():
                 globals()[slot_plugin.__name__] = slot_plugin
                 # Register the slot plugin with the plugin pool
                 plugin_pool.register_plugin(slot_plugin)
+        else:
+            raise ImproperlyConfigured(
+                f"Cannot register frontend component {key} since a plugin {plugin.__name__} "
+                f"is already registered by {plugin_pool.plugins[plugin.__name__].__module__}."
+            )

djangocms_frontend/component_base.py

@@ -174,7 +174,7 @@ def plugin_factory(cls) -> type:
                         if hasattr(cls, "get_render_template")
                         else {}
                     ),
-                    "__module__": cls.__module__,
+                    "__module__": "djangocms_frontend.cms_plugins",
                 },
             )
         return cls._plugin

djangocms_frontend/plugin_tag.py

@@ -65,7 +65,8 @@ def get_plugin_class(settings_string: str | type) -> type:
     if isinstance(settings_string, str):
         if "." in settings_string:
             # import the class if a dotted oath is given
-            return importlib.import_module(*settings_string.rsplit(".", 1))
+            module_name, class_name = settings_string.rsplit(".", 1)
+            return getattr(importlib.import_module(module_name), class_name, None)
         # Get the plugin class from the plugin pool by its name
         return plugin_pool.get_plugin(settings_string)
     return settings_string