Question

在我的工作中，我们有一个模块/网络应用程序，询问我们的数据库，寻找已经RSVP再次与我们住在一起的学生（我们住宿和餐饮） - 无论是在我们的公寓还是住宿大厅。目前的申请需要很长时间才能运行，我被要求优化，让用户可以选择是否有相关学生是我们公寓的居民（下面是Jardine），或者他们是否住在宿舍里。我有一个基本的if语句，根据html选择菜单中的选择构造查询，然后使用builded sql语句运行查询。出于某种原因，当我实现此更改时 - 不会返回任何结果。任何帮助表示赞赏！我们总共运行3个查询，一个主要查询抓住所有居民，另一个查询“意图离开（ITV）”，仅适用于jardine居民，还有一个适用于所有居民。

try
{       
    if (isset($_POST['select'])) 
    {
        if ($_POST['select'] == 'jardine') 
        {
            $jardine = true;    // Neighborhood and Apartments include the Jardine under 'Site_name' column
            $query = "SELECT * FROM av_user_hms_PatronAssignments a WHERE NOW() BETWEEN ElementStart AND ElementEnd 
                    AND a.Site_name LIKE '%Neighborhood% AND a.Site_name LIKE '%Apartments%'
                    ORDER BY Last_Name, First_Name";
        }
        else
        { 
            $jardine = false;   // Everything else is Residence Halls
            $query = "SELECT * FROM av_user_hms_PatronAssignments a WHERE NOW() BETWEEN ElementStart AND ElementEnd 
                    AND a.Site_name NOT LIKE '%Neighborhood% AND a.Site_name NOT LIKE '%Apartments%'
                    ORDER BY Last_Name, First_Name";
        }

        $hms = new hms_helper();

        // Run the query
        $hmsRows = $hms->query_a($query);           

        //see if user has completed RSVP application
        $query = "SELECT * FROM rsvp.application WHERE wid = ? AND termID = ?";
        $apps = $mysqli->prepare($query) or throwNewException("Prepare error:".$mysqli->error." ".$query);
        $term = getCurrentTerm();
        $apps->bind_param("ii", $stmtArg,$term);


        if ($jardine)
        {           
            // also check Jardine Intent to Vacate
            $query = "SELECT * FROM ITV.ITV WHERE WID = ? AND STR_TO_DATE(vacate_date,'%m/%d/%Y') > '".date("Y")."-01-01';";
            $itv = $eITV->prepare($query) or throwNewException("Prepare error:".$eITV->error." ".$query);
            $itv->bind_param("i", $stmtArg);
        }

        foreach($hmsRows as $k=>$a)
        {
            //$lastWID is used to keep track of last wid so that no entry is duplicated
            $stmtArg = (int)$a["wid"];
            $apps->execute();
            $appResult = $apps->get_result();// get the result back

            if ($jardine)
            {
                $itv->execute();
                $itvResult = $itv->get_result();
                if($itvResult->num_rows > 0) // if they are planning to leave jardine unset them
                {
                    unset($hmsRows[$k]);
                } 
            }

            if($appResult->num_rows > 0) // if they have an application unset them
            {
                unset($hmsRows[$k]);// removes this entry from the array so it won't be displayed.
            }
            elseif($a['ID_Number'] == $lastWID)// don't show duplicates
            {
                unset($hmsRows[$k]);
            }               
            $lastWID = $a['ID_Number'];
        }
    }
}

注意：

hms_helper类中的所有内容都能正常工作
我已经使用我们的ODBC查询工具运行了查询，并且所有工作都是
$ _POST ['select']正确传递，我有几个echo语句来检查这个
执行调用是运行$ itv和$ apps（已准备好）

if语句之后不运行查询

0 个答案: