stats: add feature flag for extending record indices with stats

Author: JakobMiesner

invenio_app_ils/config.py

@@ -1247,6 +1247,7 @@ def _(x):
 
 # Feature Toggles
 ILS_SELF_CHECKOUT_ENABLED = False
+ILS_EXTEND_INDICES_WITH_STATS_ENABLED = False
 
 # Use default frontpage
 THEME_FRONTPAGE = False

invenio_app_ils/ext.py

@@ -330,4 +330,5 @@ def before_loan_index_hook(sender, json=None, record=None, index=None, **kwargs)
     :param kwargs: Any other parameters.
     """
     index_extra_fields_for_loan(json)
-    index_stats_fields_for_loan(json)
+    if current_app.config["ILS_EXTEND_INDICES_WITH_STATS_ENABLED"]:
+        index_stats_fields_for_loan(json)

tests/api/ils/stats/conftest.py

@@ -17,3 +17,12 @@ def empty_event_queues():
         queue = current_stats.events[event].queue
         queue.queue.declare()
         queue.consume()
+
+@pytest.fixture()
+def with_stats_index_extensions(app):
+    """Enable indices to be extended with stats data."""
+    app.config["ILS_EXTEND_INDICES_WITH_STATS_ENABLED"] = True
+    yield
+    app.config["ILS_EXTEND_INDICES_WITH_STATS_ENABLED"] = False
+
+