From 8c94d7b969a9565510ac38bc83ad6904e6bc7b2c Mon Sep 17 00:00:00 2001
From: Alex Arnaud <alex.arnaud@biblibre.com>
Date: Mon, 4 Jan 2016 14:49:04 +0100
Subject: [PATCH] Bug 15206 - Show patron's age under date of birth in
 memberentry.pl
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Test plan:

Create or edit a patron (members/memberentry.pl),
enter a date of birth (for a new patron),
patron'a age should be shown under

Followed test plan, works as expected.
Signed-off-by: Marc Véron <veron@veron.ch>
---
 .../prog/en/modules/members/memberentrygen.tt      |   55 +++++++++++++++++++-
 1 file changed, 53 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 e646890..623806d 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/members/memberentrygen.tt
@@ -34,6 +34,8 @@
             }
         [% END %]
         $("#dateofbirth").datepicker({ maxDate: "-1D", yearRange: "c-120:" });
+        dateformat = $("#dateofbirth").siblings(".hint").first().html();
+        CalculateAge(dformat == 'metric' ? true : false);
         $("#entryform").validate({
             rules: {
                 email: {
@@ -145,6 +147,55 @@
         return 0;
     }
 
+    function CalculateAge(checkdate) {
+        var hint = $("#dateofbirth").siblings(".hint").first();
+        hint.html(dateformat);
+
+        if (checkdate && false === CheckDate(document.form.dateofbirth)) {
+            return;
+        }
+
+        if (!$("#dateofbirth").datepicker( 'getDate' )) {
+            return;
+        }
+
+        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 > 1 ? '%s years ' : '%s year ').format(year);
+        }
+
+        if (month) {
+            age_string += _(month > 1 ? '%s months ' : '%s month ').format(month);
+        }
+
+        hint.html(age_string);
+
+    }
+
 
 
         var MSG_SEPARATOR = _("Separator must be / in field %s");
@@ -344,9 +395,9 @@
                 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="CalculateAge(true);" 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(false);" value="[% UNLESS opduplicate %][% dateofbirth %][% END %]" />
         [% END %]
 
         [% IF ( mandatorydateofbirth ) %]<span class="required">Required</span>[% END %]
-- 
1.7.10.4