0

请考虑以下代码：

在此代码中，将要求用户从两个选项中选择一个日期范围，然后单击应用按钮，以便可以在网络浏览器上显示所选日期范围的结果。我想知道我应该如何进行。请对此有所了解。

2) 如何确保我可以使用“下载 CSV”选项启用下载数据的选项？

请让我知道需要进行哪些更改。任何帮助，将不胜感激。

<body>

<cfparam name="Form.startdate" default="#dateformat(now()-5, 'mm/dd/yyyy')#">
<cfparam name="Form.enddate" default="#dateformat(now()-1, 'mm/dd/yyyy')#">
<cfparam name="Form.selectdate" default="#dateformat(now(), 'mm/dd/yyyy')#">


<!--- <cfquery datasource = "xx.xx.x.x" name="qCheck">

SELECT * 
FROM   mydatabase
ORDER BY DTSId_bi LIMIT 10;

</cfquery>
 --->

<cfquery datasource = "xx.xx.x.x" name="qDatabase">

SELECT    (SELECT count(*) FROM mydatabase) AS TOTAL_CONNECTIONS,
          (SELECT count(*)FROM mydatabase WHERE event_vc = "open") AS OPEN_CONNECTIONS,
          (SELECT count(*)FROM mydatabase WHERE event_vc = "BOUNCE") AS BOUNCE_CONNECTIONS,
          (SELECT count(*) from mydatabase where event_vc = "DEFERRED") AS DEFERRED_CONNECTIONS,
          (SELECT count(*) from mydatabase where event_vc = "DELIVERED") AS DELIVERED_CONNECTIONS,
          (SELECT count(*) from mydatabase where event_vc = "DROPPED") AS DROPPED_CONNECTIONS,
          (SELECT count(*) from mydatabase where event_vc = "PROCESSED") AS PROCESSED_CONNECTIONS,
          (ROUND((SELECT OPEN_CONNECTIONS / (TOTAL_CONNECTIONS))*100)) AS "OPEN",
          (ROUND((SELECT BOUNCE_CONNECTIONS / (TOTAL_CONNECTIONS))*100)) AS "BOUNCE" ,
          (ROUND((SELECT DEFERRED_CONNECTIONS / (TOTAL_CONNECTIONS))*100)) AS "DEFERRED",
          (ROUND((SELECT DELIVERED_CONNECTIONS / (TOTAL_CONNECTIONS))*100)) AS "DELIVERED",
          (ROUND((SELECT DROPPED_CONNECTIONS / (TOTAL_CONNECTIONS))*100)) AS "DROPPED",
          (ROUND((SELECT PROCESSED_CONNECTIONS / (TOTAL_CONNECTIONS))*100)) AS "PROCESSED";
</cfquery>



<cfform format="flash" preloader ="false">

<!--- Arranging the two buttons adjacent to each other using cfformgroup tag --->
<cfformgroup type="horizontal">


<p>&nbsp;</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p>
<p>
  <cfinput type="dateField" name="startdate" label="Start Date" width="100" value="#Form.startdate#">
  <cfinput type="dateField" name="enddate" label="End Date" width="100" value="#Form.enddate#">
  <cfinput name="submit" type="submit" value = "Apply">
  <cfinput name="cancel" type="submit" value="Download CSV">
</p>
</cfformgroup>

<!--- For Horizontal Line --->
<cfformitem type = "hrule" style=""></cfformitem>


</cfform>

<cfchart
         format="png"
         chartwidth="500"
         chartheight="500"
         scalefrom="0"
         scaleto="1200000"
         title="Email Reporting "
         pieslicestyle="solid">

         <cfchartseries type="line"
                         >

        <cfchartdata item="% OPEN" value="#qDatabase.OPEN#">
        <cfchartdata item="% BOUNCE" value="#qDatabase.BOUNCE#">
        <cfchartdata item="% DEFERRED" value="#qDatabase.DEFERRED#">
        <cfchartdata item="% DELIVERED" value="#qDatabase.DELIVERED#">
        <cfchartdata item="% DROPPED" value="#qDatabase.DROPPED#">
        <cfchartdata item="% PROCESSED" value="#qDatabase.PROCESSED#"> 


    </cfchartseries>
</cfchart>





</body>
4

1 回答 1

1

如果我是你，我真的会考虑重新处理 qDatabase 查询，这是非常低效的！就下载 csv 而言，最好的方法是将文件写入一个经常被清理的临时区域，这样它就不会填满你的 HD。我将帮助编写文件，但不帮助清理大声笑。你可以这样做：

<cfscript>
    var tl ='';
    var nl = (Chr( 13 ) & Chr( 10 ));
    var fileContent = createObject("java","java.lang.StringBuffer").init();
    var counter =1;
    fileContent.append( 'OPEN,BOUNCE,DEFERRED,DELIVERED, etc');
     fileContent.append(nl);
            for(i=1;i<=qDatabase.recordCount;i=i+1){
                tl = qDatabase.OPEN&','qDatabase.BOUNCE&','qDatabase.DEFERRED&','qDatabase.DELIVERED&',' etc;
                fileContent.append(tl);
                fileContent.append(nl);
            }

</cfscript>
<cffile action="write" file="#absoluteFilePathAndName#" mode="775" output="#fileContent.toString()#"/>
<a href="#realtiveFilePathAndName#>Download</a>

每次有人点击页面时，这都会将一个 csv 文件写入绝对路径，因此您需要一些条件逻辑来防止这种情况发生。

总而言之，您需要重新查看您提供的代码并重新考虑您在做什么，但是一旦您这样做，此代码将使您开始它不是您的最终解决方案。

于 2013-07-09T22:35:22.343 回答