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MY_Module
<?php
/**
* 扩展的Module
* 在原来的基础上对模型调用进行一些优化调整
* @package codeigniter
* @subpackage core
* @author paperen
*/
class MY_Module extends CI_Module
{
/**
* 通过魔法方法__call
* @param string $name
* @param array $arguments
*/
function __call( $name, $arguments ) {
$tmp_arr = explode( '_', strtolower( $name ) );
if ( isset( $tmp_arr[0] ) && $tmp_arr[0] == 'model' ) return $this->_model( $name, $arguments );
}
/**
* 封装自定义调用模型方法
* 实现调用即加载模型的功能 同时增加查询缓存概念
* @param string $name
* @param array $arguments
* @return mixed
*/
private function _model( $name, $arguments ) {
$tmp_arr = explode( '_', strtolower( $name ) );
array_shift( $tmp_arr );
// 缓存模式
if ( $tmp_arr[0] == 'cache' ) {
$model_method = array_shift( $arguments );
$hash = md5( $model_method . '_' . serialize( $arguments ) );
$data = $this->querycache->get( $hash );
if ( empty( $data ) ) {
$data = call_user_func_array( array( $this, $model_method ), $arguments );
$this->querycache->save( $hash, $data );
}
return $data;
}
// 没有声明使用哪个模型
if ( empty( $tmp_arr ) ) exit( "\$this->{$name} ,model doesn't define" );
// 没有声明使用哪个方法
if ( count( $tmp_arr ) == 1 ) exit( "\$this->{$name} ,method doesn't define" );
// 正常模式
// 穷举所有可能性
$possible_couple = array( );
$length = count( $tmp_arr );
for ( $i = 0; $i < $length - 1; $i++ ) {
$possible_couple[] = array(
'model' => implode( '_', array_slice( $tmp_arr, 0, $i + 1 ) ),
'method' => implode( '_', array_slice( $tmp_arr, $i + 1 ) ),
);
}
foreach ( $possible_couple as $single ) {
$model_name = $single['model'];
$method_name = $single['method'];
$this->load->model( $model_name );
if ( !isset( $this->$model_name ) ) continue;
if ( !in_array( $method_name, get_class_methods( $this->$model_name ) ) ) continue;
return call_user_func_array( array( $this->$model_name, $method_name ), $arguments );
}
return NULL;
}
}
// END MY_Module Class
/* End of file MY_Module.php */
/* Location: ./application/core/MY_Module.php */
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