ColdFusion函数返回错误“系统已尝试使用未定义的值”?

时间:2019-02-20 20:22:34

标签: coldfusion sybase coldfusion-11 cfquery

我具有应保存一些表单字段的功能。此功能能够处理多个插入行。到目前为止,我已经能够创建逻辑来处理此问题,但是到目前为止,一旦用户尝试保存记录,我就遇到了唯一的问题。服务器响应如下所示:

The system has attempted to use an undefined value, which usually indicates a programming error, either in your code or some system code. Null Pointers are another name for undefined values. coldfusion

起初,我一直在寻找并尝试找出函数中未定义/缺少的值,但到目前为止我仍无法检测到该问题。我接下来要做的就是注释cfquery。之后,我收到消息Form successfully saved.。这告诉我我的代码在cfquery标记内。这是我的代码示例:

<cffunction name="saveRecords" access="remote" output="false" returnformat="JSON">
    <cfargument name="formID" type="string" required="true" default="">
    <cfargument name="status1" type="string" required="true" default="0">
    <cfargument name="status2" type="string" required="true" default="0">
    <cfargument name="status3" type="string" required="true" default="0">
    <cfargument name="status4" type="string" required="true" default="0">
    <cfargument name="status5" type="string" required="true" default="0">
    <cfargument name="comment1" type="string" required="true" default="">
    <cfargument name="comment2" type="string" required="true" default="">
    <cfargument name="comment3" type="string" required="true" default="">
    <cfargument name="comment4" type="string" required="true" default="">
    <cfargument name="comment5" type="string" required="true" default="">

    <cfset local.fnResults = structNew() />
    <cfset local.runProcess = true />
    <cfset local.arrStatus = arrayNew(1) />

    <cfloop collection="#arguments#" item="i">
        <cfif findNoCase(left(i,6), "status") and arguments[i] eq 1>
            <cfset arrayAppend(local.arrStatus, right(i,1)) />
        </cfif>
    </cfloop>

    <cfset local.frmValidation = {
        formID : len(arguments.formID),
        status1 : ArrayContains([0,1], trim(arguments.status1)),
        status2 : ArrayContains([0,1], trim(arguments.status2)),
        status3 : ArrayContains([0,1], trim(arguments.status3)),
        status4 : ArrayContains([0,1], trim(arguments.status4)),
        status5 : ArrayContains([0,1], trim(arguments.status5))
    }/>

    <cfloop collection="#frmValidation#" item="i">
        <cfif !frmValidation[i] or !arrayLen(arrStatus)>
            <cfset local.runProcess = false />
            <cfset local.fnResults = {status: 400, message: "Form data is either missing or incorrect."}>
            <cfbreak>
        </cfif>
    </cfloop>

    <cfif runProcess>
        <!---
        <cfquery name="saveRec" datasource="testDB">
            <cfloop array="#arrStatus#" index="i">
                INSERT INTO formDetails (
                    formid,
                    refid,
                    status,
                    comment,
                    userid,
                    lastupdate
                )
                SELECT
                    <cfqueryparam cfsqltype="cf_sql_numeric" value="#trim(arguments.formID)#">,
                    #i#,
                    <cfqueryparam cfsqltype="cf_sql_bit" value="#trim(arguments["status"&i])#">,
                    <cfqueryparam cfsqltype="cf_sql_varchar" maxlength="8000" value="#trim(arguments["comment"&i])#" null="#!len(trim(arguments["comment"&i]))#">,
                    <cfqueryparam cfsqltype="cf_sql_varchar" maxlength="6" value="#trim(session.userid)#" null="#!len(trim(session.userid))#">,
                    #now()#
                WHERE NOT EXISTS (
                    SELECT refid
                    FROM formDetails
                    WHERE formid = <cfqueryparam cfsqltype="cf_sql_numeric" value="#trim(arguments.formID)#">
                        AND refid = #i#
                )
            </cfloop>
        </cfquery>
        --->
        <cfset local.fnResults = {status: 200, message: "Form successfully saved!"}>
    </cfif>

    <cfreturn fnResults>
</cffunction>

我忘记提到的一件事是,在我注释掉cfquery之前,我试图保存记录,并且会发生我上面提到的错误,但同时将记录保存在数据库中。这很奇怪,因为我没有期望由于错误而导致查询无法成功执行。我使用Sybase数据库,这是有关formDetails表的详细信息:

column name    data type   length
recid          numeric      18      PK
formid         numeric      10      FK
refid          numeric      18      FK
status         bit          1
comment        varchar      8000
userid         varchar      6
lastupdate     datetime     23

我不确定我的代码在哪里中断,为什么我收到关于undefined value的错误消息。如果有人可以提供帮助或提供有关如何解决此问题的有用资源,请告诉我。

更新

我一直在寻找解决此问题的方法,并且尝试将cfscript与UNION ALL一起使用。很少有人建议这样做,这是我的代码示例:

remote function saveRecords(required string formID, string status1="0", string status2="0", string status3="0", string status4="0", string status5="0", string comment1="", string comment2="", string comment3="", string comment4="", string comment5="") output=false returnFormat="JSON" {
        local.fnResults = structNew();
        local.runProcess = true;
        local.arrReference = arrayNew(1);

        try {
            local.frmValidation = {
                formID : len(arguments.formID),
                status1 : ArrayContains([0,1], arguments.status1),
                status2 : ArrayContains([0,1], arguments.status2),
                status3 : ArrayContains([0,1], arguments.status3),
                status4 : ArrayContains([0,1], arguments.status4),
                status5 : ArrayContains([0,1], arguments.status5)
            };

            for ( i in frmValidation ) {
                if ( !frmValidation[i] ) {
                    local.runProcess = false;
                    local.fnResults = {status: 400, message: "Form data is either missing or incorrect."};
                    break;
                }
            }

            for ( fld in arguments ) {
                if ( findNoCase(left(fld,6), "status") && arguments[fld] == 1 ) {
                    arrayAppend(arrReference, right(fld,1));
                }
            }

            if ( runProcess ) {
                local.qrySql = "INSERT INTO formDetails(recid, formid, refid, status, comment, userid, lastupdate)";
                local.qryParams = [];

                for ( idx=1 ; idx<=arraylen(arrReference) ; idx++ ) {
                    local.referenceID = arrReference[idx];
                    local.recPK = trim(arguments.formID) & trim(referenceID);
                    local.statusVal = trim(arguments["status" & local.referenceID]);
                    local.commentVal = trim(arguments["comment" & local.referenceID]);

                    if ( idx != 1 ) {
                        local.qrySql &= " UNION ALL ";
                    }

                    local.qrySql &= " SELECT ?,?,?,?,?,?,?";
                    qryParams.append({cfsqltype="cf_sql_numeric", value=local.recPK});
                    qryParams.append({cfsqltype="cf_sql_numeric", value=trim(arguments.formID)});
                    qryParams.append({cfsqltype="cf_sql_numeric", value=local.referenceID});
                    qryParams.append({cfsqltype="cf_sql_tinyint", value=local.statusVal});
                    qryParams.append({cfsqltype="cf_sql_varchar", value=local.commentVal, maxlength=8000, null=!len(local.commentVal)});
                    qryParams.append({cfsqltype="cf_sql_varchar", value=trim(session.userid), maxlength=6, null=!len(trim(session.userid))});
                    qryParams.append({cfsqltype="cf_sql_timestamp", value=now()});
                }

                local.qryResult = queryExecute(qrySQL, qryParams, {datasource="#application.datasource#", result="insertRecords"});

                local.fnResults = {result: insertRecords, sql: qrySql, params: qryParams, array: arrReference, args: arguments, status: 200, message: "Form successfully saved!"};
            }
        } catch (any e) {
            local.fnResults = {sql: qrySql, params: qryParams, error: e, status: 400, message: "Error! Something went wrong..."};
        }

        return fnResults;
    }

尝试保存记录后,收到消息Something went wrong...。我回想了一下,所看到的只是指向此行的错误:

local.qryResult = queryExecute(qrySQL, qryParams, {datasource="#application.datasource#", result="insertRecords"});

我检查了数据库,记录在那里。没有关于此错误的详细信息。至少我没有收到上面问题中描述的错误,但是仍然不知道是什么导致我的代码崩溃。

1 个答案:

答案 0 :(得分:0)

我发现了两件事 1)您插入的查询没有任何值。 INSERT INTO tablename(列...)VALUES(列的值..)但是您在查询中错过了VALUE关键字。 2)每当要在单个cfquery标记中执行两次查询操作时,都应在testDB数据源中添加一些连接字符串。在CFML管理部分中可用。打开您的数据源并设置以下选项。在CFML管理员中:   enter image description here

如果您使用的是Lucee,则意味着:请检查lucee服务器/网络管理员中可用的数据源中的以下选项,

enter image description here