[FIX] web: small performance fix in calendar view

In some cases, the calendar view sends a trivial domain, such as
["partner_id", "not in", []]

This is clearly not really useful, and it could hurt performances in
some cases (for example, if the partner_id field is a related on a large
table, and non stored).

This is clearly not a complete fix, but it is easy, safe and does not
hurt.

1 files changed, 3 insertions, 1 deletions

diff --git a/addons/web/static/src/js/views/calendar/calendar_model.js b/addons/web/static/src/js/views/calendar/calendar_model.js
index ba34d754bdb..9285034398d 100644
--- a/addons/web/static/src/js/views/calendar/calendar_model.js
+++ b/addons/web/static/src/js/views/calendar/calendar_model.js
@@ -355,7 +355,9 @@ return AbstractModel.extend({
             domain.push([field, 'in', authorizedValues[field]]);
         }
         for (var field in avoidValues) {
-            domain.push([field, 'not in', avoidValues[field]]);
+            if (avoidValues[field].length > 0) {
+                domain.push([field, 'not in', avoidValues[field]]);
+            }
         }
 
         return domain;