From 14631570f25739d07547882d8c628fc33740dbf8 Mon Sep 17 00:00:00 2001
From: Alex Arnaud <alex.arnaud@biblibre.com>
Date: Wed, 18 Nov 2015 10:31:29 +0100
Subject: [PATCH] Bug 15206 - Show patron's age under date of birth in
 memberentry.pl

Test plan:

Create a new patron (members/memberentry.pl),
enter a date of birth,
patron'a age should be shown under
---
 .../prog/en/modules/members/memberentrygen.tt      |   35 ++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
index a3b7a9d..290bebe 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
@@ -145,6 +145,37 @@
         return 0;
     }
 
+    function CalculateAge(dateofbirth) {
+        var today = new Date();
+        var dob = new Date($("#dateofbirth").datepicker( 'getDate' ));
+
+        var nowyear = today.getFullYear();
+        var nowmonth = today.getMonth();
+        var nowday = today.getDate();
+
+        var birthyear = dob.getFullYear();
+        var birthmonth = dob.getMonth();
+        var birthday = dob.getDate();
+
+        var year = nowyear - birthyear;
+        var month = nowmonth - birthmonth;
+        var day = nowday - birthday;
+
+        if(day < 0) {
+            month = parseInt(month) -1;
+        }
+
+        if(month < 0) {
+            year = parseInt(year) -1;
+            month = 12 + month;
+        }
+
+        var age_string = "Age: ";
+        if (year) { age_string += year + " year(s) "; }
+        if (month) { age_string += month + " month(s) "; }
+
+        var elem = $("#dateofbirth").siblings(".hint").first().html(age_string);
+    }
 
 
         var MSG_SEPARATOR = _("Separator must be / in field %s");
@@ -344,9 +375,9 @@
                 Date of birth: </label>
 
         [% IF ( dateformat == "metric" ) %]
-                <input type="text" id="dateofbirth" name="dateofbirth" size="20" onchange="CheckDate(document.form.dateofbirth);" value="[% UNLESS opduplicate %][% dateofbirth %][% END %]" />
+                <input type="text" id="dateofbirth" name="dateofbirth" size="20" onchange="CheckDate(document.form.dateofbirth); CalculateAge(document.form.dateofbirth);" value="[% UNLESS opduplicate %][% dateofbirth %][% END %]" />
         [% ELSE %]
-                <input type="text" id="dateofbirth" name="dateofbirth" size="20" value="[% UNLESS opduplicate %][% dateofbirth %][% END %]" />
+                <input type="text" id="dateofbirth" name="dateofbirth" size="20" onchange="CalculateAge(document.form.dateofbirth);" value="[% UNLESS opduplicate %][% dateofbirth %][% END %]" />
         [% END %]
 
         [% IF ( mandatorydateofbirth ) %]<span class="required">Required</span>[% END %]
-- 
1.7.10.4