Add custom health check for data checks

aleksis/core/apps.py

@@ -7,6 +7,7 @@ from django.http import HttpRequest
 from django.utils.module_loading import autodiscover_modules
 
 from dynamic_preferences.registries import preference_models
+from health_check.plugins import plugin_dir
 
 from .registries import (
     group_preferences_registry,
@@ -52,6 +53,10 @@ class CoreConfig(AppConfig):
 
         self._refresh_authentication_backends()
 
+        from .health_checks import DataChecksHealthCheckBackend
+
+        plugin_dir.register(DataChecksHealthCheckBackend)
+
     @classmethod
     def _refresh_authentication_backends(cls):
         """Refresh config list of enabled authentication backends."""

aleksis/core/health_checks.py

+from django.utils.translation import gettext as _
+
+from health_check.backends import BaseHealthCheckBackend
+
+from aleksis.core.models import DataCheckResult
+
+
+class DataChecksHealthCheckBackend(BaseHealthCheckBackend):
+    """Checks whether there are unresolved data problems."""
+
+    critical_service = False
+
+    def check_status(self):
+        if DataCheckResult.objects.filter(solved=False).exists():
+            self.add_error(_("There are unresolved data problems."))
+
+    def identifier(self):
+        return self.__class__.__name__