/**
* 获取所有元数据
*
* 若没有主键则返回false
*
* @param bool $reload_from_db 如果数据没则自动从数据库加载
* @return array|false
*/
public function get_all_metadata($reload_from_db = true)
{
if (!$this->pk()) {
return false;
}
$meta_group_of_key = OOP_ORM_DI::get_meta_group_of_key($this->_class_name);
$meta_table_of_key = OOP_ORM_DI::get_meta_table_of_key($this->_class_name);
$data = array();
if ($meta_group_of_key) {
if ($this->_metadata) {
# 检查下是否全部加载完毕
$table_loaded = array();
foreach ($meta_table_of_key as $key => $table) {
if (isset($table_loaded[$table])) {
# 已经加载过的表
continue;
}
$group = $meta_group_of_key[$key];
if (is_array($this->_metadata[$table]) && array_key_exists($group, $this->_metadata[$table])) {
continue;
}
# 重新加载全部数据
$this->finder()->load_metadata($this, $table);
# 标记为已经加载过
$table_loaded[$table] = 1;
}
} else {
if ($reload_from_db) {
$this->finder()->load_all_metadata($this);
}
}
foreach ($meta_table_of_key as $key => $table) {
$this->_get_di_by_key($key)->get_field_data($this, $data, $this->_compiled_data[$key], $this->_is_temp_instance && !$this->_is_support_object_value);
}
}
return $data;
}
/**
* 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;
}
