I want to change the city to dropdown in Edit Order Billing Address admin.
- I try to update table eav_attribute in database. I changed frontend_input='select'; and copy the source model of country customer/entity_address_attribute_source_country. It change my textbox to dropdown but when I tried to duplicate the code of country in below path.
and create a file app\code\core\Mage\Customer\Model\Resource\Address\Attribute\Source\City.php app\code\core\Mage\Customer\Model\Entity\Address\Attribute\Source\City.php
just replace the Country to City in the code and update again the table and change the value customer/entity_address_attribute_source_city. I already encountered error.
- I already found the form in app\design\adminhtml\default\default\template\sales\order\address\form.phtml but the code is hard to change because it is just a single line.. see below.
Anyone can help me on this requirements.