/**
* 缓存表字段信息，并返回
* @staticvar array $info 字段信息数组
* @param type $tableName 不含前缀的表名称
* @return array
*/
public static function getTableFieldsInfo($tableName, $db)
{
if (!empty(self::$table_cache[$tableName])) {
return self::$table_cache[$tableName];
}
if (!file_exists($cache_file = Fn::systemInfo('table_cache_folder') . DIRECTORY_SEPARATOR . $tableName . '.php')) {
$info = array();
$result = $db->query('SHOW FULL COLUMNS FROM ' . $db->dbprefix . $tableName)->result_array();
if ($result) {
foreach ($result as $val) {
$info[$val['Field']] = array('name' => $val['Field'], 'type' => $val['Type'], 'comment' => $val['Comment'] ? $val['Comment'] : $val['Field'], 'notnull' => $val['Null'] == 'NO' ? 1 : 0, 'default' => $val['Default'], 'primary' => strtolower($val['Key']) == 'pri', 'autoinc' => strtolower($val['Extra']) == 'auto_increment');
}
}
$content = 'return ' . var_export($info, true) . ";\n";
$content = '<?' . 'php' . "\n" . $content;
file_put_contents($cache_file, $content);
$ret_info[$tableName] = $info;
} else {
$ret_info[$tableName] = (include $cache_file);
}
return $ret_info[$tableName];
}
/**
* 设置一个cookie，该方法会在key前面加上系统配置里面的$system['cookie_key_prefix']前缀
* 如果不想加前缀，可以使用方法：$this->setCookieRaw()
*/
public static function setCookie($key, $value, $life = null, $path = '/', $domian = null, $http_only = false)
{
$key = Fn::systemInfo('cookie_key_prefix') . $key;
return self::setCookieRaw($key, $value, $life, $path, $domian, $http_only);
}
/**
* 获取一个cookie
* 提醒:
* 该方法会在key前面加上系统配置里面的$system['cookie_key_prefix']
* 如果想不加前缀，获取原始key的cookie，可以使用方法：$this->input->cookie_raw();
* @param string $key cookie键
* @param type $default 默认值
* @param type $xss_clean xss过滤
* @return type
*/
public static function cookie($key = null, $default = null, $xss_clean = false)
{
$key = Fn::systemInfo('cookie_key_prefix') . $key;
return self::cookieRaw($key, $default, $xss_clean);
}