From 81160bc1aea74d1d96a8ffd8b2a2b8b194bfd959 Mon Sep 17 00:00:00 2001
From: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Date: Thu, 3 Feb 2022 10:31:27 +0100
Subject: [PATCH] Bug 30059: Add JS equivalent for Koha::Patron->get_age

On bug 30055 we are going to use the REST API to display the patron
search result, we will then need to calculate patron's age client-side.
This is moved to its own bug report in case we need to reuse it
somewhere else.

Test plan:
Copy/paste the JS function in your browser's console then call it and
confirm that the result is correct
For instance:
  $get_age('2000-01-01')

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
---
 .../prog/en/includes/js-patron-get-age.inc    | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 koha-tmpl/intranet-tmpl/prog/en/includes/js-patron-get-age.inc

diff --git a/koha-tmpl/intranet-tmpl/prog/en/includes/js-patron-get-age.inc b/koha-tmpl/intranet-tmpl/prog/en/includes/js-patron-get-age.inc
new file mode 100644
index 0000000000..c4ab0c0cab
--- /dev/null
+++ b/koha-tmpl/intranet-tmpl/prog/en/includes/js-patron-get-age.inc
@@ -0,0 +1,20 @@
+<!-- js-patron-get-age.inc -->
+<script>
+    (function() {
+
+        window.$get_age = function(dob, options) {
+            if(!dob) return '';
+
+            var today = new Date();
+            dob = new Date(dob);
+            var age = today.getFullYear() - dob.getFullYear();
+            var m = today.getMonth() - dob.getMonth();
+            if (m < 0 || (m === 0 && today.getDate() < dob.getDate())) {
+                age--;
+            }
+            return age;
+        }
+
+    })();
+</script>
+<!-- / js-patron-get-age.inc -->
-- 
2.39.5