I am trying to follow this blog guideline http://blog.oxid-esales.com/2009/05/how-extend-oxid-eshop-part2/
but when calling the function ‘isWorkingHours()’ I got this error
“Function ‘isWorkingHours’ does not exist or is not accessible! (Tpl)
#0 /kligmlld/update/tmp/722eb1d6aa705492eda60445ba0ca537^%%59^590^59025401%%newsletter_templete.tpl.php(125): oxSuperCfg->__call(‘isWorkingHours’, Array)
#1 /kligmlld/update/tmp/722eb1d6aa705492eda60445ba0ca537^%%59^590^59025401%%newsletter_templete.tpl.php(125): Tpl->isWorkingHours()
#2 /kligmlld/update/core/smarty/Smarty.class.php(1263): include(’/kligmlld/updat…’)
#3 /kligmlld/update/views/oxshopcontrol.php(446): Smarty->fetch(‘custom/newslett…’, ‘ox|0|0|1|0’)
#4 /kligmlld/update/views/oxshopcontrol.php(317): oxShopControl->_render(Object(Tpl))
#5 /kligmlld/update/views/oxshopcontrol.php(114): oxShopControl->_process(‘tpl’, NULL)
#6 /kligmlld/update/index.php(103): oxShopControl->start()
#7 {main};”
Any help will be appreciated. Thanks in Advance!