#34: Add count

common/database_helpers.py

@@ -539,3 +539,14 @@ def get_investigations_for_instrument_in_facility_cycle(instrument_id, facility_
 
     finally:
         session.close()
+
+
+def get_investigations_for_instrument_in_facility_cycle_count(instrument_id, facility_cycle_id):
+    """
+    Given an instrument id and facility cycle id, get the count of the investigations that use the given instrument in
+    the given cycle
+    :param instrument_id: The id of the instrument
+    :param facility_cycle_id:  the ID of the facility cycle
+    :return: The investigations count
+    """
+    return len(get_investigations_for_instrument_in_facility_cycle(instrument_id, facility_cycle_id))