Question
The following code worked in Adobe ColdFusion but since migrating to Railo gives me the following error:
Error Messages: Invalid index [0] for array. Index must be a positive integer (1, 2, 3, ...)
Error is on line starting: local.arrChartDataResult=addPercentageData(local.arrChartDataResult)
Any idea why this is the case?
https://stackoverflow.com/questions/17922239
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Russian <cffunction name="getAverageChartData" hint="I return the data required to render an average chart." returntype="array" output="false">
<cfargument name="surveyList" hint="I am a record set of Surveys." required="true" type="query" />
<cfargument name="filter" hint="I am the optional filter which is to be applied to all results." required="false" default="" type="string" />
<cfset var local=structNew() />
<cfset var rstChartData="" />
<cfset var rstChartDataTotal="" />
<cfset var rstCombinedChartData=queryNew("itemColumn,valueColumn,label","varchar,integer,varchar") />
<cfset local.objQuestion=objQuestionService.get(arguments.surveyList.question_ID[1]) />
<cfset local.intQuestionTypeID = local.objQuestion.getTypeID() />
<cfset local.strSubQuestionList=local.objQuestion.getAnswer() />
<cfset local.strPossibleAnswerList=local.objQuestion.getPossibleAnswer() />
<cfset local.arrChartDataResult=arrayNew(1) />
<!--- loop over each school's survey --->
<cfloop query="arguments.surveyList">
<cfset local.arrChartData = getChartData(arguments.surveyList.survey_id, arguments.surveyList.question_id, arguments.filter) />
<!--- loop over each sub question and append (union) it to a running total --->
<cfloop array="#local.arrChartData#" index="rstChartData">
<cfquery name="rstCombinedChartData" dbtype="query">
SELECT
itemColumn
,valueColumn
,label
FROM
rstCombinedChartData
UNION ALL
SELECT
itemColumn
,CAST(valueColumn AS INTEGER) AS valueColumn
,label
FROM
rstChartData
</cfquery>
</cfloop>
</cfloop>
<cfif local.intQuestionTypeID EQ 17>
<cfquery name="rstChartDataTotal" dbtype="query">
SELECT
itemColumn
,AVG(valueColumn) AS valueColumn
,label
FROM
rstCombinedChartData
GROUP BY
label
,itemColumn
ORDER BY
label DESC
<!---,itemColumn DESC--->
</cfquery>
<cfelse>
<!--- get the totals for each itemColumn --->
<cfquery name="rstChartDataTotal" dbtype="query">
SELECT
itemColumn
,SUM(valueColumn) AS valueColumn
,label
FROM
rstCombinedChartData
GROUP BY
label
,itemColumn
ORDER BY
label DESC
,itemColumn DESC
</cfquery>
</cfif>
<!--- add sort order column to query and populate it with the order in which the sub questions are asked --->
<cfset rstChartDataTotal=orderByQuestion(rstChartDataTotal, local.strSubQuestionList) />
<!--- if this is a one-dimensional question --->
<cfif arrayLen(local.arrChartData) EQ 1>
<cfset local.arrChartDataResult[1]=addPercentageData_Old(rstChartDataTotal) />
<cfelse>
<cfset arrayResize(local.arrChartDataResult, listLen(local.strPossibleAnswerList)) />
<cfoutput query="rstChartDataTotal" group="label">
<cfset local.intPositionInArray=listFindNoCase(local.strPossibleAnswerList, rstChartDataTotal.label, True) />
<cfoutput>
<cfquery name="local.rstChartData" dbtype="query">
SELECT
itemColumn
,valueColumn
,label
,sortOrder
FROM
rstChartDataTotal
WHERE
label = '#rstChartDataTotal.label#'
ORDER BY
sortOrder
</cfquery>
</cfoutput>
<cfset local.arrChartDataResult[local.intPositionInArray]=local.rstChartData>
</cfoutput>
<cfset local.arrChartDataResult=addPercentageData(local.arrChartDataResult) />
</cfif>
<cfreturn local.arrChartDataResult />
</cffunction>
Full Error:
Application Execution Exception
Error Type: expression : 0
Error Messages: Invalid index [0] for array. Index must be a positive integer (1, 2, 3, ...)
Template: /srv/www/testapp/admin/model/response/ResponseService.cfc
Current Event: pdf.createPDF
Current Layout: N/A
Current View: N/A
Bug Date: 07/29/2013 10:53:19 AM
Coldfusion ID: CFID=c07b7b4e-d79e-4688-950d-20f0192a27ca ; CFToken=0 ; JSessionID=4A3B1BC689B4C438DAAF1088A42A6481_c07b7b4e-d79e-4688-950d-20f0192a27ca_0
Template Path : /srv/www/testapp/admin/index.cfm
Path Info : /pdf/createPDF
Host & Server: management.testapp.co.uk:8888 ip-172-31-24-53
Query String:
Referrer: http://management.testapp.co.uk:8888/index.cfm/home?fwreinit=1
Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:22.0) Gecko/20100101 Firefox/22.0
Invalid index [0] for array. Index must be a positive integer (1, 2, 3, ...)
at railo.runtime.type.ArrayImpl.setE(ArrayImpl.java:226):226
at railo.runtime.type.ArrayImpl.set(ArrayImpl.java:205):205
at railo.runtime.type.util.ArraySupport.set(ArraySupport.java:360):360
at railo.runtime.util.VariableUtilImpl.set(VariableUtilImpl.java:437):437
at railo.runtime.PageContextImpl.set(PageContextImpl.java:1266):1266
at model.response.responseservice_cfc$cf._1(/srv/www/testapp/admin/model/response/ResponseService.cfc:268):268
at model.response.responseservice_cfc$cf.udfCall(/srv/www/testapp/admin/model/response/ResponseService.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.ComponentImpl._call(ComponentImpl.java:607):607
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.call(ComponentImpl.java:1781):1781
at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:723):723
at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1506):1506
at handlers.pdf_cfc$cf.udfCall(/srv/www/testapp/admin/handlers/pdf.cfc:289):289
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:275):275
at railo.runtime.ComponentImpl._call(ComponentImpl.java:608):608
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1796):1796
at railo.runtime.tag.Invoke.doComponent(Invoke.java:209):209
at railo.runtime.tag.Invoke.doEndTag(Invoke.java:182):182
at system.web.controller_cfc$cf._6(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc:662):662
at system.web.controller_cfc$cf.udfCall(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.type.scope.UndefinedImpl.call(UndefinedImpl.java:775):775
at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:723):723
at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1506):1506
at system.web.controller_cfc$cf._5(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc:553):553
at system.web.controller_cfc$cf.udfCall(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:275):275
at railo.runtime.ComponentImpl._call(ComponentImpl.java:608):608
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1800):1800
at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:749):749
at railo.runtime.PageContextImpl.getFunctionWithNamedValues(PageContextImpl.java:1521):1521
at system.coldbox_cfc$cf._1(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/Coldbox.cfc:226):226
at system.coldbox_cfc$cf.udfCall(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/Coldbox.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.ComponentImpl._call(ComponentImpl.java:607):607
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.call(ComponentImpl.java:1781):1781
at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:723):723
at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1506):1506
at application_cfc$cf.udfCall(/srv/www/rudifferent/admin/Application.cfc:54):54
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.ComponentImpl._call(ComponentImpl.java:607):607
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.call(ComponentImpl.java:1781):1781
at railo.runtime.listener.ModernAppListener.call(ModernAppListener.java:346):346
at railo.runtime.listener.ModernAppListener._onRequest(ModernAppListener.java:107):107
at railo.runtime.listener.MixedAppListener.onRequest(MixedAppListener.java:18):18
at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2255):2255
at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2222):2222
at railo.runtime.engine.CFMLEngineImpl.serviceCFML(CFMLEngineImpl.java:315):315
at railo.loader.servlet.CFMLServlet.service(CFMLServlet.java:29):29
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728):728
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305):305
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210):210
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222):222
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123):123
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472):472
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171):171
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99):99
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118):118
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407):407
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004):1004
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589):589
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312):312
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source):-1
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source):-1
at java.lang.Thread.run(Unknown Source):-1
Solution
I don't think you've posted the relevant code, based on where you say the error is occurring, but my strong suspicion is that the code in addPercentageData() is leveraging - by design or otherwise - the fact that ColdFusion passes arrays by value. However Railo passes 'em by reference, so you are possibly interfering with data in your calling code, when you were assuming you were simply working on a copy of the data local to your function.
This is just an educated guess though.
