feat: Add usage info to changelist

Author: fsbraun

djangocms_alias/admin.py

@@ -3,6 +3,7 @@
 from cms.utils.urlutils import admin_reverse
 from django import forms
 from django.contrib import admin, messages
+from django.db import models
 from django.http import (
     Http404,
     HttpRequest,
@@ -20,7 +21,7 @@
     LIST_ALIAS_URL_NAME,
     USAGE_ALIAS_URL_NAME,
 )
-from .filters import CategoryFilter, SiteFilter
+from .filters import CategoryFilter, SiteFilter, UsedFilter
 from .models import Alias, AliasContent, Category
 from .utils import (
     emit_content_change,
@@ -34,7 +35,7 @@
     "AliasContentAdmin",
 ]
 
-alias_admin_list_display = ["content__name", "category", "admin_list_actions"]
+alias_admin_list_display = ["content__name", "category", "used", "admin_list_actions"]
 djangocms_versioning_enabled = AliasCMSConfig.djangocms_versioning_enabled
 
 if djangocms_versioning_enabled:
@@ -67,6 +68,7 @@ class AliasAdmin(GrouperModelAdmin):
     list_filter = (
         SiteFilter,
         CategoryFilter,
+        UsedFilter,
     )
     fields = ("content__name", "category", "site", "content__language")
     readonly_fields = ("static_code",)
@@ -79,6 +81,15 @@ def get_actions_list(self) -> list:
         """Add alias usage list actions"""
         return super().get_actions_list() + [self._get_alias_usage_link, self._get_alias_delete_link]
 
+    def get_queryset(self, request):
+        qs = super().get_queryset(request)
+        # Annotate each Alias with a boolean indicating if related cmsplugins exist
+        return qs.annotate(cmsplugins_count=models.Count("cms_plugins"))
+
+    @admin.display(description=_("Used"), boolean=True, ordering="cmsplugins_count")
+    def used(self, obj: Alias) -> bool:
+        return obj.cmsplugins_count > 0
+
     def has_delete_permission(self, request: HttpRequest, obj: Alias = None) -> bool:
         # Alias can be deleted by users who can add aliases,
         # if that alias is not referenced anywhere.
@@ -124,9 +135,9 @@ def delete_model(self, request: HttpRequest, obj: Alias):
                 sender=self.model,
             )
 
-    def _get_alias_usage_link(self, obj: Alias, request: HttpRequest, disabled: bool = False) -> str:
+    def _get_alias_usage_link(self, obj: Alias, request: HttpRequest) -> str:
         url = admin_reverse(USAGE_ALIAS_URL_NAME, args=[obj.pk])
-        return self.admin_action_button(url, "info", _("View usage"), disabled=disabled)
+        return self.admin_action_button(url, "info", _("View usage"))
 
     def _get_alias_delete_link(self, obj: Alias, request: HttpRequest) -> str:
         url = admin_reverse(DELETE_ALIAS_URL_NAME, args=[obj.pk])

djangocms_alias/filters.py

@@ -78,3 +78,35 @@ def choices(self, changelist):
                 "query_string": changelist.get_query_string({self.parameter_name: lookup}),
                 "display": title,
             }
+
+
+class UsedFilter(admin.SimpleListFilter):
+    title = _("Used in Alias Plugin")
+    parameter_name = "used"
+
+    def lookups(self, request, model_admin):
+        return [
+            ("yes", _("Used")),
+            ("no", _("Unused")),
+        ]
+
+    def queryset(self, request, queryset):
+        value = self.value()
+        if value == "yes":
+            return queryset.filter(cmsplugins_count__gt=0)
+        elif value == "no":
+            return queryset.filter(cmsplugins_count=0)
+        return queryset
+
+    def choices(self, changelist):
+        yield {
+            "selected": self.value() is None,
+            "query_string": changelist.get_query_string(remove=[self.parameter_name]),
+            "display": _("All"),
+        }
+        for lookup, title in self.lookup_choices:
+            yield {
+                "selected": self.value() == lookup,
+                "query_string": changelist.get_query_string({self.parameter_name: lookup}),
+                "display": title,
+            }

djangocms_alias/locale/de/LC_MESSAGES/django.mo

@@ -11,30 +11,34 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2025-08-22 23:06+0200\n"
+"POT-Creation-Date: 2025-08-26 08:10+0200\n"
 "PO-Revision-Date: 2023-01-10 21:21+0000\n"
 "Last-Translator: Fabian Braun <[email protected]>, 2025\n"
 "Language-Team: German (https://app.transifex.com/divio/teams/58664/de/)\n"
+"Language: de\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"Language: de\n"
 "Plural-Forms: nplurals=2; plural=(n != 1);\n"
 
 #: admin.py:78
 msgid "<i>Missing language</i>"
 msgstr "<i>Fehlende Sprache</i>"
 
-#: admin.py:134 cms_toolbars.py:104
+#: admin.py:89 filters.py:88
+msgid "Used"
+msgstr "In Verwendung"
+
+#: admin.py:140 cms_toolbars.py:103
 #: templates/djangocms_alias/alias_usage.html:50
 msgid "View usage"
 msgstr "Verwendung anzeigen"
 
-#: admin.py:141
+#: admin.py:147
 msgid "Delete Alias"
 msgstr "Verlinkung löschen"
 
-#: admin.py:183
+#: admin.py:189
 #, python-brace-format
 msgid ""
 "Alias content for language {} deleted. A new empty alias content will be "
@@ -47,60 +51,61 @@ msgstr ""
 msgid "django CMS Alias"
 msgstr "django CMS Alias"
 
-#: cms_plugins.py:31 cms_toolbars.py:52 forms.py:270 views.py:58 views.py:326
+#: cms_plugins.py:37 cms_plugins.py:271 cms_plugins.py:309 cms_toolbars.py:51
+#: forms.py:270
 msgid "Alias"
 msgstr "Alias"
 
-#: cms_plugins.py:53
+#: cms_plugins.py:59
 msgid "Edit Alias"
 msgstr "Alias bearbeiten"
 
-#: cms_plugins.py:67
+#: cms_plugins.py:73
 msgid "Detach Alias"
 msgstr "Alias trennen"
 
-#: cms_plugins.py:82 cms_plugins.py:99
+#: cms_plugins.py:88 cms_plugins.py:106
 msgid "Create Alias"
 msgstr "Alias erstellen"
 
-#: cms_toolbars.py:53 cms_toolbars.py:80 templates/djangocms_alias/base.html:4
+#: cms_toolbars.py:52 cms_toolbars.py:79 templates/djangocms_alias/base.html:4
 msgid "Aliases"
 msgstr "Aliasse"
 
-#: cms_toolbars.py:96
+#: cms_toolbars.py:95
 msgid "Change alias settings"
 msgstr "Alias-Einstellungen ändern"
 
-#: cms_toolbars.py:114
+#: cms_toolbars.py:112
 msgid "Delete alias"
 msgstr "Alias löschen"
 
-#: cms_toolbars.py:159 templates/djangocms_alias/create_alias.html:31
+#: cms_toolbars.py:157 templates/djangocms_alias/create_alias.html:31
 msgid "Create"
 msgstr "Erstellen"
 
-#: cms_toolbars.py:172 internal_search.py:29
+#: cms_toolbars.py:170 internal_search.py:29
 msgid "Language"
 msgstr "Sprache"
 
-#: cms_toolbars.py:224
+#: cms_toolbars.py:222
 msgid "Add Translation"
 msgstr "Übersetzung hinzufügen"
 
-#: cms_toolbars.py:235
+#: cms_toolbars.py:233
 msgid "Delete Translation"
 msgstr "Übersetzung löschen"
 
-#: cms_toolbars.py:252
+#: cms_toolbars.py:250
 msgid "Copy all plugins"
 msgstr "Alle Plugins kopieren"
 
-#: cms_toolbars.py:254
+#: cms_toolbars.py:252
 #, python-format
 msgid "from %s"
 msgstr "von %s"
 
-#: cms_toolbars.py:255
+#: cms_toolbars.py:253
 #, python-format
 msgid "Are you sure you want to copy all plugins from %s?"
 msgstr "Sind Sie sicher, dass Sie alle Plugins aus %s kopieren wollen?"
@@ -125,7 +130,7 @@ msgstr "Neue Alias-Kategorie erstellen"
 msgid "Site"
 msgstr "Site"
 
-#: filters.py:37 filters.py:73
+#: filters.py:37 filters.py:73 filters.py:104
 msgid "All"
 msgstr "Alle"
 
@@ -137,6 +142,14 @@ msgstr "Kein Site"
 msgid "Category"
 msgstr "Kategorie"
 
+#: filters.py:83
+msgid "Used in Alias Plugin"
+msgstr "In Alias-Baustein verwendet"
+
+#: filters.py:89
+msgid "Unused"
+msgstr "Nicht in Verwendung"
+
 #: forms.py:78
 msgid "A plugin or placeholder is required to create an alias."
 msgstr ""
@@ -188,7 +201,7 @@ msgstr "Version-Status"
 msgid "Default"
 msgstr "Vorgabe"
 
-#: models.py:51 models.py:269
+#: models.py:51 models.py:263
 msgid "name"
 msgstr "Name"
 
@@ -224,31 +237,31 @@ msgstr "statischer Code"
 msgid "To render the alias in templates."
 msgstr "Um Aliasse in Vorlagen zu rendern"
 
-#: models.py:104 models.py:387
+#: models.py:104 models.py:382
 msgid "alias"
 msgstr "Alias"
 
 #: models.py:105
 msgid "aliases"
 msgstr "Aliasse"
 
-#: models.py:283
+#: models.py:277
 msgid "alias content"
 msgstr "Alias-Inhalt"
 
-#: models.py:284
+#: models.py:278
 msgid "alias contents"
 msgstr "Alias-Inhalte"
 
-#: models.py:392
+#: models.py:387
 msgid "template"
 msgstr "Vorlage"
 
-#: models.py:399
+#: models.py:394
 msgid "alias plugin model"
 msgstr "Alias-Plugin-Model"
 
-#: models.py:400
+#: models.py:395
 msgid "alias plugin models"
 msgstr "Alias-Plugin-Modelle"
 
@@ -259,9 +272,9 @@ msgstr "Speichern"
 #: templates/admin/djangocms_alias/alias/delete_confirmation.html:15
 #, python-format
 msgid ""
-"You don't have permissions to delete %(object_name)s \"%(escaped_object)s\"."
-" Please request your site admin to add permissions to delete alias, or "
-"delete alias from all places that it being used."
+"You don't have permissions to delete %(object_name)s \"%(escaped_object)s\". "
+"Please request your site admin to add permissions to delete alias, or delete "
+"alias from all places that it being used."
 msgstr ""
 "Sie haben keine Berechtigung, %(object_name)s \"%(escaped_object)s\" zu "
 "löschen. Bitte fragen Sie Ihren Administrator, Ihnen die Rechte zum Löschen "
@@ -276,20 +289,20 @@ msgstr ""
 "Sind Sie sicher, dass Sie %(object_name)s \"%(escaped_object)s\" löschen "
 "möchten?"
 
-#: templates/admin/djangocms_alias/alias/delete_confirmation.html:24
+#: templates/admin/djangocms_alias/alias/delete_confirmation.html:23
 msgid "This alias is used by following objects:"
 msgstr "Dieser Alias wird von folgenden Objekten genutzt:"
 
-#: templates/admin/djangocms_alias/alias/delete_confirmation.html:34
+#: templates/admin/djangocms_alias/alias/delete_confirmation.html:33
 msgid "This alias is not used by any object."
 msgstr "Dieser Alias wird nirgendwo genutzt."
 
-#: templates/admin/djangocms_alias/alias/delete_confirmation.html:41
+#: templates/admin/djangocms_alias/alias/delete_confirmation.html:40
 #: templates/djangocms_alias/detach_alias.html:17
 msgid "Yes, I'm sure"
 msgstr "Ja, ich bin sicher!"
 
-#: templates/admin/djangocms_alias/alias/delete_confirmation.html:43
+#: templates/admin/djangocms_alias/alias/delete_confirmation.html:42
 #: templates/djangocms_alias/detach_alias.html:16
 msgid "No, take me back"
 msgstr "Nein, zurück!"