zoo_data: permettre à une application d'étendre les URLs d'admin des entités (#21198)

zoo/zoo_data/admin.py

@@ -16,6 +16,7 @@
 
 from django.contrib import admin
 from django.forms import ModelForm
+from django.apps import apps
 
 from rangefilter.filter import DateTimeRangeFilter
 
@@ -114,6 +115,15 @@ class EntityAdmin(DataAdmin):
                 actions.update(app_config.get_entity_actions())
         return actions
 
+    def get_urls(self):
+        urls = super(EntityAdmin, self).get_urls()
+        cls_name = self.__class__.__name__.lower()
+        for app in apps.get_app_configs():
+            name = 'get_%s_urls' % cls_name
+            if hasattr(app, name):
+                urls = getattr(app, name)(self) + urls
+        return urls
+
 
 class RelationAdmin(DataAdmin):
     raw_id_fields = DataAdmin.raw_id_fields + ['left', 'right']