PHPdatatable服务器端处理(2)

以下是做项目时涉及到datatable服务器端处理的代码，大家可以参考一下对于前段发送数据的处理

aoData=[

{"name":"sEcho","value":1},//前台发起请求次数  *draw

{"name":"iColumns","value":5},//表格总列数  

{"name":"sColumns","value":""},

{"name":"iDisplayStart","value":0},//指定从哪一条数据开端显示到表格中去  *start

{"name":"iDisplayLength","value":20},//指定一屏显示的条数 *length

{"name":"mDataProp_0","value":"deviceId"},//每列绑定的后台数据

{"name":"mDataProp_1","value":"sensorType"},//每列绑定的后台数据

{"name":"mDataProp_2","value":"sensorNumber"},//每列绑定的后台数据

{"name":"mDataProp_3","value":"sensorValue"},//每列绑定的后台数据

{"name":"mDataProp_4","value":"sentTime"},//每列绑定的后台数据

{"name":"sSearch","value":""},//定义初始的全局搜索条件  *search[value]

{"name":"bRegex","value":false},//定义搜索条件是否当做正则表达式处理

{"name":"sSearch_0","value":""},//value 值表示对第0列按此value值进行搜索

{"name":"bRegex_0","value":false},//为true时搜索条件当做正则表达式处理，为false时当做字符串处理

{"name":"bSearchable_0","value":true},//是否在列上应用过滤/搜索，默认为true

{"name":"sSearch_1","value":""},//同上

{"name":"bRegex_1","value":false},//同上

{"name":"bSearchable_1","value":true},//同上

{"name":"sSearch_2","value":""},//同上

{"name":"bRegex_2","value":false},//同上

{"name":"bSearchable_2","value":true},//同上

{"name":"sSearch_3","value":""},//同上

{"name":"bRegex_3","value":false},//同上

{"name":"bSearchable_3","value":true},//同上

{"name":"sSearch_4","value":""},//同上

{"name":"bRegex_4","value":false},//同上

{"name":"bSearchable_4","value":true},//同上

{"name":"iSortCol_0","value":0},//value值为待排序的列号，列是从0开始计算(每次只能按一列排序)

{"name":"sSortDir_0","value":"asc"},//asc表示待排序列按升序排列，desc表示按降序排列

{"name":"iSortingCols","value":1},  //排序的列数，默认为1，每次操作只允许按某一列排序

{"name":"bSortable_0","value":true},//此列允许排序操作

{"name":"bSortable_1","value":true},//此列允许排序操作

{"name":"bSortable_2","value":true},//此列允许排序操作

{"name":"bSortable_3","value":true},//此列允许排序操作

{"name":"bSortable_4","value":true},//此列允许排序操作

{"name":"startTime","value":"2016-03-01+11:24:56"},

{"name":"endTime","value":"2016-03-01+12:24:56"},

{"name":"subName","value":"温度146bda6-01-1"}

]

 

//查询Plant传感器发送的数据

    public function testSensorData() {

       header("Access-Control-Allow-Origin:*");

       //header('Content-Type:text/html;charset=utf-8'); ////防止json格式的中文乱码输出

        $aoData = $_GET['aoData'];

        $name = testSensorData;

        if ($aoData) {

            $search =$this->aoDataProcess($aoData);

        }

        if (isset($search['subName']) or!empty($search['subName'])) {

            if (isset($search['startTime']) and($search['startTime'] == date("Y-m-d H:i:s",strtotime($search['startTime'])))) {

                if (isset($search['endTime'])and ($search['endTime'] == date("Y-m-d H:i:s",strtotime($search['endTime'])))) {

                    if(strtotime($search['startTime']) <= strtotime($search['endTime'])) {

                        $result ="pass";

                        $sensorHsDb =M('sensor_history', 'campus_');

                        $sensorInfo =explode(",", $search['subName']);

                        $sensorDb = M('sensor','campus_');

                        for ($i = 0; $i

                            $sensorMap[$i] =explode("-", substr($sensorInfo[$i], 6));

                            $map['device'] =$sensorMap[$i][0];

                            $map['sensortype']= $sensorMap[$i][1];

                           $map['sensornumber'] = $sensorMap[$i][2];

                            $sensorid =$sensorDb->where($map)->field(id)->find();

                            $sensor[$i] =$sensorid['id'];

                        }

                        $search['array'] =$sensor;

                        $dataInfo =$this->dataQueryProcess($name, $sensorHsDb, $search);

                    } else {

                        $result = "fail";

                        $errorCode ="0007";

                    }

                } else {

                    $result = "fail";

                    $errorCode ="0006";

                }

            } else {

                $result = "fail";

                $errorCode = "0005";

            }

        } else {

            $result = "fail";

            $errorCode = "0004";

        }

        $res =$this->resInfoProcess($result, $name, $errorCode, $dataInfo);

        //echo json_encode($res);

        echo $res;

}

 

function aoDataProcess($aoData) {

        $aoDataJson =json_decode($aoData);

        //定义默认查询条件

        $search['sEcho'] = 1;//这个值强制转成整形直接返回给前台，必要

       $search['display']['start'] = 0; //表格数据从多少条开始查询

       $search['display']['length'] = 20; //查询几条数据

       $search['tableColumns'] = array();

        $num = 0;

        foreach ($aoDataJsonas $value) {

           //$search[$value->name] = $value->value;

            $nameKey =$value->name;

            $valueKey =$value->value;

 

            if ($nameKey =="sEcho") {

               $search['sEcho'] = $valueKey;

            } elseif ($nameKey== "iDisplayStart") {

                $search['display']['start'] =intval($valueKey); //获取前台传过来的查询数目条件

            } elseif ($nameKey== "iDisplayLength") {

               $search['display']['length'] = intval($valueKey);

            } elseif ($nameKey== "iSortCol_0") {

                $search['order']['columns'] = $valueKey;//获取前台传过来的排序条件

            } elseif ($nameKey== "sSortDir_0") {

               $search['order']['sort'] = $valueKey;

            } elseif ($nameKey== "sSearch") {

               $search['publicSearch']['value'] = $valueKey; //获取前台传过来的过滤条件   

            } elseif ($nameKey== "bRegex") {

               $search['publicSearch']['regex'] = $valueKey;

            } elseif(strchr($nameKey, "mDataProp")) {

                //$d =array($num, $valueKey);

                array_push($search['tableColumns'],$valueKey);

                $num++;

            } elseif ($nameKey== "subName") {

               $search['subName'] = $valueKey;

            } elseif ($nameKey== "startTime") {

               $search['startTime'] = $valueKey;

            } elseif ($nameKey== "endTime") {

               $search['endTime'] = $valueKey;

            }

        }

        return $search;

    }

 

/*

     * 数据查询

     * $name要查询的接口名；

     * $m_name:要查询的数据表；

     * $search:查询条件

     */

 

    public functiondataQueryProcess($name, $m_name, $search) {

        $array =$search['array'];

        $tableColumns =$search['tableColumns']; //表格列名

        $publicSearch =$search['publicSearch'];

        $order =$search['order'];

        $startTime =$search['startTime'];

        $endTime =$search['endTime'];

        $start =$search['display']['start'];

        $num =$search['display']['length'];

 

        $qeueyRes['sEcho'] =(int) $search['sEcho'];

       $qeueyRes['iTotalRecords'] = 0;

       $qeueyRes['iTotalDisplayRecords'] = $qeueyRes['iTotalRecords'];

 

        //全局搜索       

        switch($publicSearch['regex']) {

            case"true":

                $searchRege =" like '%.$publicSearch[value].%'"; //搜索值

                break;

            case"false":

                $searchRege =" like '%$publicSearch[value]%'";

                break;

            case 0:

                $searchRege =" like '%$publicSearch[value]%'";

                break;

            default:

                break;

        }

        foreach ($tableColumnsas $k => $v) {

            $column = $column . $v . $searchRege ." or ";

        }

        $searchColumns =substr($column, 0, -4); //搜索列名       

        $searchWhere = "where " . $searchColumns;

 

        //排序

        $column =$search['order']['columns']; //排序列，从0开始

        $orderColumn =$tableColumns[$column]; //排序列名

        $orderSort =$search['order']['sort']; //ase desc 升序或者降序

        $sort = " orderby " . $orderColumn . " " . $orderSort;

 

        //分页

        $limit = " limit$start,$num";

 

        switch ($name) {

            //根据用户所选sensor查询并统计在给定时间段内sensor发出的数据以及时间

            case testSensorData:

                $sensorid =implode("','", $search['array']); // iTotalRecords

                $sqlC ="select count(sensorValue) num from (select a.deviceiddeviceId,a.sensortype sensorType,a.sensornumber sensorNumber,b.value sensorValue,b.timesentTime from campus_sensor a,campus_sensor_history b

where a.id=b.sensorid and a.id in ('$sensorid')and b.time between'$startTime' and '$endTime') t";

                $sqlD ="select * from (select a.deviceid deviceId,a.sensortype sensorType,a.sensornumbersensorNumber,b.value sensorValue,b.time sentTime from campus_sensora,campus_sensor_history b

where a.id=b.sensorid and a.id in ('$sensorid') and b.time between'$startTime' and '$endTime') t";

                if(strlen($publicSearch['value']) > 0) {

                    $sqlCount= $sqlC;

                    $sqlData =$sqlD . $searchWhere . $sort . $limit;

                    $sqlFilter= $sqlC . $searchWhere;

                   $totalRecords = $m_name->query($sqlCount);

                    $qeueyRes['iTotalRecords'] =$totalRecords['0']['num'];

                   $filterRecords = $m_name->query($sqlFilter);

                   $qeueyRes['iTotalDisplayRecords'] = $filterRecords['0']['num'];

                } else {

                    $sqlCount= $sqlC;

                    $sqlData =$sqlD . $sort . $limit;

                   $totalRecords = $m_name->query($sqlCount);

                   $qeueyRes['iTotalRecords'] = $totalRecords['0']['num'];

                   $qeueyRes['iTotalDisplayRecords'] = $qeueyRes['iTotalRecords'];

                }

                $searchData =$m_name->query($sqlData);

                if($searchData) {

                   $qeueyRes['sensorInfo'] = $searchData;

                }

                break;

            default:

                break;

        }

        return $qeueyRes;

    }