if zero results and anonymous, mention threshold

bento_beacon/utils/beacon_response.py

@@ -1,6 +1,6 @@
 from flask import current_app, g, request
 from .katsu_utils import search_summary_statistics, overview_statistics
-from .censorship import get_censorship_threshold, censored_count
+from .censorship import get_censorship_threshold, censored_count, no_results_censorship_message
 from .exceptions import InvalidQuery, APIException
 from ..constants import GRANULARITY_BOOLEAN, GRANULARITY_COUNT, GRANULARITY_RECORD
 
@@ -107,6 +107,8 @@ def build_query_response(ids=None, numTotalResults=None, full_record_handler=Non
     granularity = response_granularity()
     count = len(ids) if numTotalResults is None else numTotalResults
     returned_count = censored_count(count)
+    if returned_count == 0 and not g.permission_query_data:
+        add_info_to_response(no_results_censorship_message())
     if granularity == GRANULARITY_BOOLEAN:
         return beacon_boolean_response(returned_count)
     if granularity == GRANULARITY_COUNT: