cakephp2.X多表联合查询join及使用分页查询的方法

本文实例讲述了cakephp2.X多表联合查询join及使用分页查询的方法。分享给大家供大家参考，具体如下：

格式化参数：

public function getconditions($data){  $this->loadModel("Cm.LoginHistory");  $conditions = array();  foreach ($data as $key=>$val){    if($key=="start_date"){      $conditions["LoginHistory.logintime >="]=trim($val);    }elseif ($key=="end_date"){      $conditions["LoginHistory.logouttime <="]=trim($val);    }elseif ($key=="selectvsoftid" and $val !=""){      $conditions["LoginHistory.LOGINSUBSYSTEM LIKE"]="%".trim($val)."%";    }elseif ($key=="username" and $val !=""){      $conditions["LoginHistory.USERNAME LIKE"]="%".trim($val)."%";    }elseif ($key=="vdevicename" and $val !=""){      $conditions["LoginHistory.WINDOWNAME LIKE"]="%".trim($val)."%";    }elseif ($key=="selectvsoftid" and $val !=""){      $conditions["LoginHistory.PHDEVICENAME LIKE"]="%".trim($val)."%";    }  }  return $conditions;}

分页查询：

$fields = array("LoginHistory.windowname","LoginHistory.loginsubsystem","VirtualDevice.PHDEVICEID","LoginHistory.userid", "VirtualDevice.SYSTYPEID","UserInfo.USERNAME",""SUM"(LoginHistory.LOGOUTTIME-LoginHistory.LOGINTIME) moument","UserInfo.USERNAME","DeviceInfo.DEVICENAME");$group=array("LoginHistory.windowname", "LoginHistory.loginsubsystem", "LoginHistory.userid","UserInfo.USERNAME","DeviceInfo.DEVICENAME","VirtualDevice.SYSTYPEID","VirtualDevice.PHDEVICEID");$this->paginate = array("conditions"=>$conditions,"fields"=>$fields,"group"=>$group,"limit"=>9,"joins" => array(   array(     "alias" => "UserInfo",     "table" => "SMM_USERINFO",     "type" => "LEFT",     "conditions" => " LoginHistory.USERID=UserInfo.USERID ",   ),   array(     "alias" => "VirtualDevice",     "table" => "ET_NMVIRTUALDEVICEINFO",     "type" => "LEFT",     "conditions" => " LoginHistory.WINDOWNAME=VirtualDevice.DEVICENAME ",   ),   array(     "alias" => "DeviceInfo",     "table" => "ET_NMDEVICEINFO",     "type" => "LEFT",     "conditions" => " VirtualDevice.PHDEVICEID=DeviceInfo.DEVICEID ",   ), ));$LoginHistory = $this->paginate("LoginHistory");$this->set("loginhistory",$LoginHistory);

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