/**
* 释放所有对象
* return object|false
*/
public static function clear($name = '')
{
self::$_model = (array) self::$_model;
if (!empty($name)) {
unset(self::$_model[$name]);
return true;
}
foreach (self::$_model as $k => $obj) {
unset($obj, self::$_model[$k]);
}
self::$_model = array();
}
/**
* 获取相应MODEL
* @param string $name 要实例化的MODEL
* @return zbj_components_basemodel|false
*/
protected function model($name = '')
{
//默认为主model
if (empty($name)) {
$name = $this->marter_table;
}
if (!isset($this->model[$name])) {
//检查是否实例化主表
if (!isset($this->model[$this->marter_table])) {
//2011.8.10 兼容前个版本写法
$model_class = strpos($this->marter_table, 'model_') === false ? "model_{$this->marter_table}" : $this->marter_table;
//2011.8.23 更换为新的模型接口
//$this->model[$this->marter_table] = new $model_class($this->id==0?false:$this->id);
$this->model[$this->marter_table] = components_api::get($model_class, $this->id, $this->isLockTable($name) ? false : true);
//是否强制读取主库
if ($this->dbentry === true) {
$this->model[$this->marter_table]->setDbEntry();
}
return $this->model($name);
}
$relations = $this->model[$this->marter_table]->relations();
if (!isset($relations[$name])) {
$this->setError(0, '没有找到表关系' . $name);
return false;
}
//如果是多对一的关系
if ($relations[$name][2] == 'BELONGS_TO') {
$id = $this->get($relations[$name][1]);
} else {
$id = $this->id;
}
//2011.8.10 兼容前个版本写法
$class_name = strpos($relations[$name][0], 'model_') === false ? 'model_' . $relations[$name][0] : $relations[$name][0];
//2011.8.23 更换为新的模型接口
//$this->model[$name] = new $class_name($id==0?false:$id);
if (empty($id)) {
$this->model[$name] = components_api::get($class_name);
} else {
$this->model[$name] = components_api::get($class_name, $id, $this->isLockTable($name) ? false : true);
//对于需要实例化数据记录的，不需要保存，直接使用模型接口
//return components_api::get($class_name, $id, $this->isLockTable($name) ? false : true);
}
}
return $this->model[$name];
}
