/**
* 获取处理字段di控制反转对象
*
* @param $class_name
* @param $key
* @return OOP_ORM_DI
*/
protected function _get_di_by_key($key)
{
if ($this->_is_temp_instance) {
# 临时ORM对象
if (!isset($this->_temp_di[$key])) {
$config = array('is_temp_instance' => true);
if (!$this->_expand_key || $this->_expand_key === $key || array_key_exists($key, $this->_data)) {
$class = 'OOP_ORM_DI_Default';
$config['field_name'] = $key;
} else {
# 自动扩展
$class = 'OOP_ORM_DI_Virtual';
$config['parent_offset'] = $this->_expand_key;
$config['sub_offsets'] = array($key);
}
$this->_temp_di[$key] = new $class($this->_class_name, $key, $this->tablename(), $config);
}
return $this->_temp_di[$key];
} else {
return OOP_ORM_DI::get_class_di($this->_class_name, $key);
}
}
/**
* 获取当前类型的数据
*
* @param OOP_ORM_Data $obj
* @param $data
* @param $compiled_data
* @return mixed
*/
public function &get_data(OOP_ORM_Data $obj, &$data, &$compiled_data, &$compiled_raw_data)
{
# 处理URL变量
$this->url = $this->config['resource'];
if (preg_match_all('#{{([a-z0-9_]+)}}#i', $this->url, $m)) {
foreach ($m[1] as $v) {
$this->url = str_replace('{{' . $v . '}}', $obj->{$v}, $this->url);
}
}
# 获取缓存
if (isset($this->config['cache'])) {
/**
* @var $cache Cache
*/
list($cache, $key) = $this->get_cache_instance_and_key($obj);
$tmp_data = $cache->get($key);
} else {
$tmp_data = null;
}
# 获取内容
if (null === $tmp_data || false === $tmp_data) {
$tmp_data = HttpClient::factory()->get($this->url)->data();
if (false === $tmp_data) {
return false;
}
# 处理数据类型
if (isset($this->config['field_type'])) {
OOP_ORM_DI::_check_field_type($this->config['field_type'], $tmp_data);
}
# 设置缓存
if (isset($this->config['cache'])) {
$cache->set($key, $tmp_data, isset($this->config['cache']['expired']) ? $this->config['cache']['expired'] : 3600, isset($this->config['cache']['expire_type']) ? $this->config['cache']['expire_type'] : null);
}
}
# 处理格式化数据
if (isset($this->config['format'])) {
OOP_ORM_DI::_do_de_format_data($this->config['format'], $tmp_data);
}
$compiled_data[$this->key] = $tmp_data;
$compiled_raw_data[$this->key] = $tmp_data;
return $compiled_data[$this->key];
}
/**
* 获取当前ORM的主键
*
* [!!] 其中key是对象的key，value是字段名
*
* @return array
*/
public function get_pk_name()
{
return OOP_ORM_DI::get_pk_name_by_class_name(strtolower($this->get_orm_name('data')));
}
protected function get_metadata_by_group_data($config, $metadata)
{
if ($config['depth'] > 0) {
$tmp_data = array();
foreach ($metadata as $item) {
if ($item['field_name'] !== $config['field_name']) {
continue;
}
if (strpos($item['meta_index'], '.') !== false) {
// 构造一个多维数组
$tmp =& $tmp_data;
foreach (explode('.', $item['meta_index']) as $key) {
$tmp =& self::_create_metadata_tree($key, $tmp);
}
$tmp = $item['meta_value'];
if (isset($config['format']) && $config['format']) {
OOP_ORM_DI::_do_de_format_data($config['format'], $tmp);
}
unset($tmp);
} else {
if (isset($config['format']) && $config['format']) {
OOP_ORM_DI::_do_de_format_data($config['format'], $item['meta_value']);
}
$tmp_data[$item['meta_index']] = $item['meta_value'];
}
}
return $tmp_data;
} else {
foreach ($metadata as $item) {
if ($item['field_name'] === $config['field_name']) {
if (isset($config['format']) && $config['format']) {
OOP_ORM_DI::_do_de_format_data($config['format'], $item['meta_value']);
}
return $item['meta_value'];
}
}
return null;
}
}
/**
* 设置数据
*
* @param OOP_ORM_Data $obj
* @param $data
* @param $compiled_data
* @param $new_value
* @param bool $has_compiled
* @return bool
*/
public function set_data(OOP_ORM_Data $obj, &$data, &$compiled_data, &$compiled_raw_data, $new_value, $has_compiled)
{
if ($has_compiled) {
if ($this->is_readonly()) {
# 只读字段
return false;
}
}
# 处理数据类型
if (isset($this->config['field_type'])) {
OOP_ORM_DI::_check_field_type($this->config['field_type'], $new_value);
}
$compiled_data[$this->key] = $new_value;
if (!$has_compiled) {
$compiled_raw_data[$this->key] = $compiled_data[$this->key];
if ($this->field_name) {
# 未构造完，给data设置值
$data[$this->field_name] = $this->get_data($obj, $data, $compiled_data, $compiled_raw_data);
}
}
return true;
}
/**
* 返回指定对象所以的key
*
* 如果没有主键则返回空数组 `array()`
*
* @param $class_name
* @return array
*/
public static function get_all_keys($class_name)
{
if (!isset(OOP_ORM_DI::$ALL_KEYS[$class_name])) {
OOP_ORM_DI::parse_offset($class_name);
}
return OOP_ORM_DI::$ALL_KEYS[$class_name];
}
/**
* 加载对应数据库所有元数据
*
* @param OOP_ORM_Data $obj
* @return $this
* @throws Exception
*/
public function load_all_metadata(OOP_ORM_Data $obj)
{
$class_name = $obj->class_name();
$meta_table_of_key = OOP_ORM_DI::get_meta_table_of_key($class_name);
$meta_group_of_key = OOP_ORM_DI::get_meta_group_of_key($class_name);
if (!$meta_table_of_key) {
# 没有元数据
return $this;
}
# 没有主键
if (!$obj->pk()) {
return $this;
}
$keys_of_table = array();
foreach ($meta_table_of_key as $key => $table) {
$keys_of_table[$table][] = $key;
}
$data = array();
$groups_of_table = array();
# 读数据
foreach ($keys_of_table as $table => $keys) {
foreach ($this->load_metadata($obj, $table) as $hash => $item) {
$data[$table][$item['meta_group']][$hash] = $item;
}
foreach ($keys as $key) {
$group = $meta_group_of_key[$key];
$groups_of_table[$table][$group] = $group;
}
}
foreach ($groups_of_table as $table => $groups) {
foreach ($groups as $group) {
# 预置空数据
$obj->__orm_callback('set_metadata', $table, $group, array());
}
}
foreach ($data as $table => $group_data) {
foreach ($group_data as $group => $item) {
$obj->__orm_callback('set_metadata', $table, $group, $item);
}
}
return $this;
}
