Zen-cart中国家表的管理比较粗糙，特别是在要对应国家下拉列表进行调整时，比如把常用的国家调整到最前面，那么就需要扩展一下国家表字段了。
涉及到国家表管理的是admin/countries.php文件，需要对这个文件做一些改动：
///////////////////////
$cnt = $db->metaColumns(TABLE_COUNTRIES);
if(!isset($cnt[strtoupper(‘countries_name_cn‘)])){
$db->Execute("ALTER TABLE ".TABLE_COUNTRIES." ADD countries_name_cn VARCHAR( 64 ) NULL DEFAULT ‘‘");
}
if(!isset($cnt[strtoupper(‘order_by‘)])){
$db->Execute("ALTER TABLE ".TABLE_COUNTRIES." ADD order_by int(11) NOT NULL DEFAULT ‘0‘");
}
///////////////////////
然后就是对插入编辑时的SQL进行修改，当然接下来还有修改表单(这里忽略)。
这样可以添加中文名称和排序码，排序码添加了之后还要修改两个获取国家下拉列表的函数（前台后台分别对应一个）：
#includes/functions/functions_lookups.php
function zen_get_countries($countries_id = ‘‘, $with_iso_codes = false) {
global $db;
$countries_array = array();
if (zen_not_null($countries_id)) {
} else {
///////////////////////
$cnt = $db->metaColumns(TABLE_COUNTRIES);
if(!isset($cnt[strtoupper(‘order_by‘)])){
$db->Execute("ALTER TABLE ".TABLE_COUNTRIES." ADD order_by int(11) NOT NULL DEFAULT ‘0‘");
}
///////////////////////
$countries = "select countries_id, countries_name
from " . TABLE_COUNTRIES . "
order by order_by, countries_name";
$countries_values = $db->Execute($countries);
while (!$countries_values->EOF) {
$countries_array[] = array(‘countries_id‘ => $countries_values->fields[‘countries_id‘],
‘countries_name‘ => $countries_values->fields[‘countries_name‘]);
$countries_values->MoveNext();
}
}
return $countries_array;
}
#admin/includes/functions/general.php
function zen_get_countries($default = ‘‘) {
global $db;
$countries_array = array();
if ($default) {
$countries_array[] = array(‘id‘ => ‘‘,
‘text‘ => $default);
}
///////////////////////
$cnt = $db->metaColumns(TABLE_COUNTRIES);
if(!isset($cnt[strtoupper(‘countries_name_cn‘)])){
$db->Execute("ALTER TABLE ".TABLE_COUNTRIES." ADD countries_name_cn VARCHAR( 64 ) NULL DEFAULT ‘‘");
}
if(!isset($cnt[strtoupper(‘order_by‘)])){
$db->Execute("ALTER TABLE ".TABLE_COUNTRIES." ADD order_by int(11) NOT NULL DEFAULT ‘0‘");
}
///////////////////////
$countries = $db->Execute("select countries_id, countries_name,countries_name_cn
from " . TABLE_COUNTRIES . "
order by order_by, countries_name");
while (!$countries->EOF) {
$countries_array[] = array(‘id‘ => $countries->fields[‘countries_id‘],
‘text‘ => $countries->fields[‘countries_name‘]." - ".$countries->fields[‘countries_name_cn‘]);
$countries->MoveNext();
}
return $countries_array;
}
函数中加入了判断对应字段是否存在的逻辑，防止出错。
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