Coldfusion 查询不可按列名索引，但列不应'；不存在

所以我经常会遇到这样的错误，主要是由机器人造成的：

java.lang.IllegalArgumentException: 
  [Table (rows 0 columns ID, BOOKID, EDITIONID, EDITIONNAME, PRACTICEAREALINK, PUBLISHED): 
  ...REALINK: coldfusion.sql.QueryColumn@2c12f137] 
  [PUBLISHED: coldfusion.sql.QueryColumn@f9a687c] ] is not indexable by webtypeid

但是，在它试图引用的查询中找不到它引用的列

所以我们这里有3个文件，一个index.cfm，一个Business.cfc和一个DAO.cfc。在企业内部，代码如下所示：

<cfcomponent extends="_lbr._core.NativeBusiness">
  <cffunction name="init" access="public" output="false" returntype="_lbr._who._publication._Edition.EditionBusiness" hint="Pseudo-constructor">
    <cfargument name="oEditionDAO"          type="_lbr._who._publication._Edition.EditionDAO"           required="true">
    <cfscript>
        super.init(argumentCollection=arguments);

        variables.oEditionDAO       = arguments.oEditionDAO;

        return this;
    </cfscript>
  </cffunction>

  <cffunction name="getEditionByPracticeArea" returntype="query" access="public">
    <cfargument name="nEditionID" type="numeric" required="false">
    <cfargument name="nPraciceAreaID" type="numeric" required="false">
    <cfargument name="bPublished" type="boolean" required="false">
    <cfscript>
        return variables.oEditionDAO.getEditionByPracticeArea(argumentCollection=arguments);
    </cfscript>
  </cffunction>

  <cffunction name="getEditionsByPracticeArea" returntype="query" access="public">
    <cfargument name="nPracticeAreaID" type="numeric" required="false">
    <cfargument name="bPracticeAreaLink" type="boolean" required="false">
    <cfargument name="bPublished" type="boolean" required="false">
    <cfargument name="lstFields" type="string" required="false">
    <cfscript>
        return variables.oEditionDAO.getEditionsByPracticeArea(argumentCollection=arguments);
    </cfscript>
  </cffunction>

  <cffunction name="getTypesByPracticeArea" returntype="query" access="public">
    <cfargument name="nPracticeAreaID" type="numeric" required="false">
    <cfargument name="nEditionID" type="numeric" required="false">
    <cfscript>
        return variables.oEditionDAO.getTypesByPracticeArea(argumentCollection=arguments);
    </cfscript>
  </cffunction>

</cfcomponent>

---

该if语句发生错误。它应该只接收包含

webtypeid

和

typename

的查询，那么它认为从何处获取

ID、BOOKID、EDITIONID、EDITIONNAME、PRACTICEAREALINK、PUBLISHED

？我唯一能解释的是，它正在与lstfields混淆。。。但这没有任何意义。

乍一看，我怀疑这是因为您没有使用

var

声明函数的

qQuery

本地，因此在执行这些方法时，它有时会被覆盖。如果在CFQUERY标记之前尝试此操作，您可能会看到它消失：

---

您也可以像在

LOCAL.qQuery

中那样使用本地作用域，让错误处理代码向您发送一个cfdump变量。qTypesYep-竞争条件。他们以如此有趣的方式展现自己；-）+1.我想可能是这样，我明天就得试试。还有@Leigh你不能自己+1；）（编辑）哈哈，不是我的风格。我一直在考虑比赛条件，但是。。恩丁法斯抢先找到了答案。所以他得到了“+1”-）实际上我必须做一个cfset。。。我能不能先执行

然后a

稍后返回local.qQuery

？是的，后者适合CF9+。

var

关键字仅适用于旧版本，如CF8，它不支持

LOCAL

范围。

<cfcomponent extends="_lbr._core.NativeDAO">
  <cffunction name="init" access="public" output="false" returntype="_lbr._who._Publication._Edition.EditionDAO" hint="Pseudo-constructor">
    <cfargument name="sDSN" type="string" required="true" hint="The datasource name to use to access the database through.">
    <cfargument name="oCFML"            type="_lbr._util._cfml.CFML"    required="true" hint="The CFML object to use for scripting.">
    <cfscript>
        super.init(argumentCollection=arguments);
        variables.sDSN                  = arguments.sDSN;
        variables.oCFML                 = arguments.oCFML;
        variables.lstFields             = "p.publication_ID, p.publication_name, e.edition_id, e.edition_name, e.pub_year, e.pub_date";
        variables.lstSubEditionFields   = "id,bookid,editionid,editionname,practiceareaLink,published";
        return this;
    </cfscript>
  </cffunction>

  <cffunction name="getEditionByPracticeArea" returntype="query" access="public">
    <cfargument name="nEditionID" type="numeric" required="false">
    <cfargument name="nPraciceAreaID" type="numeric" required="false">
    <cfargument name="bPublished" type="boolean" required="false">
    <cfargument name="nStartRow" required="true" type="numeric" default="0">
    <cfargument name="nEndRow" required="true" type="numeric" default="1">
    <cfscript>
        return selectEditionsByPracticeArea(argumentCollection=arguments);
    </cfscript>
  </cffunction>

  <cffunction name="getEditionsByPracticeArea" returntype="query" access="public">
    <cfargument name="nPracticeAreaID" type="numeric" required="false">
    <cfargument name="bPracticeAreaLink" type="boolean" required="false">
    <cfargument name="bPublished" type="boolean" required="false">
    <cfargument name="lstFields" type="string" required="false">
    <cfscript>
        return selectEditionsByPracticeArea(argumentCollection=arguments);
    </cfscript>
  </cffunction>

  <cffunction name="selectEditionsByPracticeArea" returntype="query" access="public">
    <cfargument name="nStartRow" required="true" type="numeric" default="0">
    <cfargument name="nEndRow" required="true" type="numeric" default="100">
    <cfargument name="nEditionID" type="numeric" required="false" default="0">
    <cfargument name="nPracticeAreaID" type="numeric" required="false" default="0">
    <cfargument name="bPracticeAreaLink" type="boolean" required="false">
    <cfargument name="bPublished" type="boolean" required="false">
    <cfargument name="lstFields" type="string" default="#variables.lstSubEditionFields#" required="false">
    <cfquery name="qQuery" datasource="#variables.sDSN#">
        SELECT #arguments.lstFields#
          FROM tbl_who_subeditions
         WHERE 1
        <cfif arguments.nPracticeAreaID gt 0>
            AND bookid = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.nPracticeAreaID#">
        </cfif>
        <cfif arguments.nEditionID gt 0>
            AND editionID = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.nEditionID#">
        </cfif>
        <cfif structKeyExists(arguments,"bPublished")>
            AND published = <cfqueryparam cfsqltype="cf_sql_bit" value="#arguments.bPublished#">
        </cfif>
        <cfif arguments.nPracticeAreaID gt 0 OR arguments.nEditionID gt 0>
            <cfif structKeyExists(arguments,"bPracticeAreaLink")>
                AND practiceareaLink = <cfqueryparam cfsqltype="cf_sql_tinyint" value="#arguments.bPracticeAreaLink#">
            </cfif>
        </cfif>
        LIMIT #arguments.nStartRow#,#arguments.nEndRow#
    </cfquery>
    <cfreturn qQuery>
  </cffunction>

  <cffunction name="getTypesByPracticeArea" returntype="query" access="public">
    <cfargument name="nPracticeAreaID" type="numeric" required="false">
    <cfargument name="nEditionID" type="numeric" required="false">
    <cfscript>
        return selectTypesByPracticeArea(argumentCollection=arguments);
    </cfscript>
  </cffunction>

  <cffunction name="selectTypesByPracticeArea" returntype="query" access="public">
    <cfargument name="nStartRow" required="true" type="numeric" default="0">
    <cfargument name="nEndRow" required="true" type="numeric" default="100">
    <cfargument name="nEditionID" type="numeric" required="false" default="0">
    <cfargument name="nPracticeAreaID" type="numeric" required="false" default="0">
    <cfargument name="lstFields" type="string" default="#variables.lstSubEditionFields#" required="false">
    <cfquery name="qQuery" datasource="#variables.sDSN#">
        SELECT distinct webtypeid, typename
          FROM tbl_who_webtype2practiceareas wp
          JOIN tbl_who_webtypes w ON wp.webtypeid = w.id
         WHERE 1
        <cfif arguments.nPracticeAreaID gt 0>
            AND bookid = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.nPracticeAreaID#">
        </cfif>
        <cfif arguments.nEditionID gt 0>
            AND editionid = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.nEditionID#">
        </cfif>
        LIMIT #arguments.nStartRow#,#arguments.nEndRow#
    </cfquery>
    <cfreturn qQuery>
  </cffunction>
</cfcomponent>

variables.stArgs = {};
variables.stArgs.nPracticeAreaID  = request.parameters.nPublicationID;
variables.stArgs.nEditionID = request.parameters.nSubEdition;

variables.qTypes = application.stObj.oEditionBusiness.getTypesByPracticeArea(argumentCollection=variables.stArgs);

if(variables.qTypes["webtypeid"].IndexOf(JavaCast("int",2)) GTE 0 OR variables.qTypes["webtypeid"].IndexOf(JavaCast("int",3)) GTE 0){
  request.parameters.bHasTypes = true;
}