function __construct()
{
if (null === $this->tablename) {
throw new Exception(__('orm tablename is not declared.'));
}
parent::__construct();
}
function __construct()
{
if (null === $this->api_url) {
throw new \Exception(\__('orm api url is not declared.'));
}
parent::__construct();
}
function __construct($api_url = null)
{
if (null !== $api_url) {
$this->api_url = $api_url;
}
if (null === $this->api_url) {
throw new Exception(__('orm api_url is not declared.'));
}
parent::__construct();
}
function __construct($table_name = null, $database = null)
{
if (null !== $table_name) {
$this->tablename = $table_name;
}
if (null !== $database) {
$this->database = $database;
}
if (null === $this->tablename) {
throw new Exception(__('ORM :orm tablename is not declared.', array(':orm' => get_class($this))));
}
parent::__construct();
}
/**
* 获取指定的对象，如果没有数据则尝试从资源中创建数据
*
* 无可用数据则返回false
*
* @param $group_id
* @param $index
* @return OOP_ORM_Data|null
*/
protected function get_offset_data($index)
{
if (!isset($this->data[$index])) {
if (!$this->resource || !$this->finder) {
return null;
}
# 从数据库中获取
$data = $this->resource->offsetGet($index);
# 返回是null，则seek看是否对应指针数据不存在
if (null === $data && false === $this->resource->seek($index)) {
return null;
}
# 使用获取的数据创建新对象
$this->data[$index] = $this->finder->create($data, isset($this->option['is_field_key']) ? $this->option['is_field_key'] : true, $this->id);
if ($this->option['count'] == count($this->data)) {
# 获取完所有数据后就可以直接释放资源，不用等到对象被消毁
$this->release_resource();
# 重新排序，避免排序错乱
ksort($this->data, SORT_NUMERIC);
}
}
return $this->data[$index];
}
protected static function _get_orm_group_data(\OOP_ORM $obj, \OOP_ORM_Data $data_obj, $orm_config, $index)
{
$group_data = $data_obj->get_group_data();
if ($group_data) {
foreach ($orm_config['mapping'] as $k => $v) {
$tmpdata = array();
//记录临时数据
foreach ($group_data as $i => $item) {
# 当前字段需要符合的条件
$iswhere = true;
if (isset($orm_config['where'])) {
foreach ($orm_config['where'] as $wk => $wv) {
if ($item->{$wk} != $wv) {
$iswhere = false;
}
}
}
if ($iswhere) {
$tmpdata[] = $item->{$v};
}
}
$tmpdata = \array_unique($tmpdata);
if ($tmpdata) {
$obj->in($k, $tmpdata);
}
}
if ($tmpdata) {
# 如果有临时数据，则表明可以进行批量获取
if (isset($orm_config['where'])) {
foreach ($orm_config['where'] as $k => $v) {
# 额外的一些条件
$obj->where($k, $v);
}
}
$all_data = $obj->find();
} else {
$all_data = array();
}
# 整理data，将数据放在一个以mapping条件组成的key数组里
$tmp = array();
foreach ($all_data as $item) {
$tmpkey = '';
foreach ($orm_config['mapping'] as $k => $v) {
$tmpkey .= '|' . $k . '_' . $item->{$k};
}
$tmp[$tmpkey] = $item;
}
# 将获取来的数据赋值给各个对象
foreach ($group_data as $item) {
$tmpkey = '';
foreach ($orm_config['mapping'] as $k => $v) {
$tmpkey .= '|' . $k . '_' . $item->{$v};
}
if ($item === $data_obj) {
# 当前对象
$data = isset($tmp[$tmpkey]) ? $tmp[$tmpkey] : null;
} else {
$item->{$index} = isset($tmp[$tmpkey]) ? $tmp[$tmpkey] : null;
}
}
if (isset($data)) {
# 已经获取到当前对象，直接返回
return $data;
}
}
return true;
}
/**
* 设置为延迟获取数据
*
* @return string
*/
protected function __orm_callback_set_finder(OOP_ORM $finder)
{
if (!$this->_finder_id) {
$this->_finder_id = uniqid('f');
}
OOP_ORM_Data::$FINDERS[$this->_finder_id] = $finder;
$driver = $finder->driver();
if ($driver instanceof Database) {
$this->_is_support_object_value = $driver->driver()->is_support_object_value();
} elseif ($driver instanceof HttpClient) {
$this->_is_support_object_value = true;
}
}
protected static function set_query_info(OOP_ORM_Data $obj, OOP_ORM $finder, $config)
{
# WHERE
if ($config['where']) {
$finder->where($config['where']);
}
# MAPPING
if ($config['mapping']) {
foreach ($config['mapping'] as $k => $v) {
$finder->where($k, $obj->{$v});
}
}
# 绑定数据
if (isset($config['bind']) && $config['bind']) {
$finder->where($config['bind'], $obj->get_data_by_field_name($config['bind'], true));
}
if (isset($config['order_by']) && $config['order_by']) {
foreach ($config['order_by'] as $k => $v) {
$finder->order_by($k, $v);
}
}
# OFFSET
if (isset($config['offset']) && $config['offset'] > 0) {
$finder->offset($config['offset']);
}
# GROUP BY
if (isset($config['group_by']) && $config['group_by']) {
foreach ($config['group_by'] as $item) {
$finder->group_by($item);
}
}
# ORDER BY
if (isset($config['order_by']) && $config['order_by']) {
foreach ($config['order_by'] as $key => $item) {
$finder->order_by($key, $item);
}
}
# IN
if (isset($config['in']) && $config['in']) {
foreach ($config['in'] as $key => $item) {
$finder->in($key, $item);
}
}
# LIMIT
if (isset($config['limit']) && $config['limit']) {
$finder->limit($config['limit']);
}
# LIKE
if (isset($config['like']) && $config['like']) {
$finder->like($config['like']);
}
# HAVING
if (isset($config['having']) && $config['having']) {
$finder->having($config['having']);
}
# 支持扩展所有的方法
if (isset($config['other']) && $config['other']) {
foreach ($config['other'] as $argv) {
$k = array_pop($argv);
call_user_func_array(array($finder, $k), $argv);
}
}
}