Hi
Malcolm,
Thanks
for your advice. Jeff's solutions worked well if you want to take a
look. I'm going to try to post my completed solution on some site.
Darius
-----Original Message-----Hi Darius,
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]On Behalf Of Malcolm
Sent: Wednesday, August 10, 2005 4:48 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] Calling ArrayStructures in CFCs from Flex
I too went through the same pain (days & days of trying see what data types
I could successfully return from a CFC).
I'm still learning but in my somewhat limited experience I could find no way
to return an array datatype, it just wouldn't do it no matter what I tried,
same goes for structures. I have successfully returned the following
datatypes:
:String
:Query
:Boolean
:Numeric (yet to try)
:Date (yet to try)
It's interesting to note that Flex (somehow) in the background actually
converts a ColdFusion query to an array. (Search the group on how these can
be accessed)
At the moment I am mostly using queries to get data back. This has the
unfortunate side effect of losing typing (everything in the query is a
string), thus you may need cast some results etc to their correct type in
Flex.
Malcolm
-----Original Message-----
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of coldfs
Sent: Friday, 5 August 2005 7:29 AM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Calling ArrayStructures in CFCs from Flex
Hi,
Using Tom Link's blog (http://tomlink.net/blog/index.cfm?
mode=entry&entry=B662BEF9-7E97-A3B0-E3FB286E23BDAA50) and other
sources, I've been trying for days to translate queries to arrays of
structures (and vice versa). Whatever I do, the cfc doesn't except
my values from Flex as arrays. I know it's a chunk of code to
review, but you'd help a sane man going slowly mad...:-)
Many thanks,
Darius
-----------
index.mxml:
-----------
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.macromedia.com/2003/mxml">
<mx:Script>
<![CDATA[
var RecordSetModel;
private function doResult(event:Object):Void{
var method: String =
event.call.methodName;
if (method
== "GetUpdateAuthorization"){
RecordSetModel = event.result;
}
}
private function doClick():Void{
var UserId = "rgatta";
var CountyCode = 37;
var CaseFlag = "No";
var CourtOrderAvailableFlag = "No";
var Dsn = "TssDev";
ro.GetUpdateAuthorization
(UserId,CountyCode,CaseFlag,CourtOrderAvailableFlag,Dsn);
}
]]>
</mx:Script>
<mx:RemoteObject id="ro"
endpoint="http://gx270dev.net/flashservices/gateway"
source="Model.mUtilities.mUpdate.qry_UpdateAuthorization"
fault="mx.controls.Alert.show(event.fault.faultstring)"
showBusyCursor="true">
<mx:method name="GetUpdateAuthorization"
result="doResult(event.result)"/>
</mx:RemoteObject>
<mx:Panel width="100%" title="Forms" height="22%">
<mx:DataGrid id="UpdatesDG" width="166" height="156"
wordWrap="true" dataProvider="{RecordSetModel}">
<mx:columns>
<mx:Array>
<mx:DataGridColumn
width="200" headerText="Update Form" columnName="Function"/>
<mx:DataGridColumn
width="320" headerText="Description" columnName="Description"/>
</mx:Array>
</mx:columns>
</mx:DataGrid>
<mx:Button label="Get Records" click="doClick()"/>
</mx:Panel>
</mx:Application>
--------------------------
fx_UpdateAuthorization.cfc
--------------------------
<cfcomponent extends="Base">
<cfset obj = createObject
("component","qry_UpdateAuthorization")>
<!--- <cffunction name="getEmployees" access="remote"
returntype="array">
<cfreturn queryToArrayOfStructures(emp.getEmployees())
>
</cffunction> --->
<cffunction name="GetUpdateAuthorization" access="remote"
returntype="array">
<cfargument name="AuthorizedUserIdObject"
type="array" required="yes">
<cfargument name="CountyCodeObject" type="array"
required="yes">
<cfargument name="CaseFlagObject" type="array"
required="yes">
<cfargument name="CourtOrderAvailableFlagObject"
type="array" required="yes">
<cfargument name="DsnObject" type="array"
required="yes">
<cfreturn queryToArrayOfStructures
(obj.GetUpdateAuthorization
(AuthorizedUserIdObject,CountyCodeObject,CaseFlagObject,CourtOrderAvai
lableFlagObject,DsnObject))>
</cffunction>
</cfcomponent>
-----------------------------
qry_UpdateAuthorization.cfc
-----------------------------
<cfcomponent extends="Base">
<cffunction name="GetUpdateAuthorization" access="remote"
returntype="query">
<cfargument name="AuthorizedUserId" type="array"
required="yes">
<cfargument name="CountyCode" type="array"
required="yes">
<cfargument name="CaseFlag" type="array"
required="yes">
<cfargument name="CourtOrderAvailableFlag"
type="array" required="yes">
<cfargument name="Dsn" type="array" required="yes">
<CFSTOREDPROC PROCEDURE="spUpdateAuthorization"
DATASOURCE="#Arguments.Dsn#">
<CFPROCPARAM DBVARNAME="AuthorizedUserId"
TYPE="IN" VALUE="#Arguments.AuthorizedUserId#"
CFSQLTYPE="CF_SQL_CHAR">
<CFPROCPARAM DBVARNAME="CountyCode" TYPE="IN"
VALUE="#Arguments.CountyCode#" CFSQLTYPE="CF_SQL_CHAR">
<CFPROCPARAM DBVARNAME="CaseFlag" TYPE="IN"
VALUE="#Arguments.CaseFlag#" CFSQLTYPE="CF_SQL_CHAR">
<CFPROCPARAM
DBVARNAME="CourtOrderAvailableFlag" TYPE="IN"
VALUE="#Arguments.CourtOrderAvailableFlag#" CFSQLTYPE="CF_SQL_CHAR">
<CFPROCRESULT NAME="qGetUpdateAuthorization">
</CFSTOREDPROC>
<cfreturn qGetUpdateAuthorization>
</cffunction>
</cfcomponent>
-------------
Base.cfc
-------------
<cfcomponent>
<cffunction name="dumpToFile" access="package" hint="A quick
and easy debugging utility when testing with Flash.">
<cfargument name="dumpObject" type="any"
required="yes">
<cfargument name="path" type="string" required="yes">
<cfset var varToOutput="">
<cfsavecontent variable="varToOutput">
<cfdump var="#arguments.dumpObject#">
</cfsavecontent>
<cffile action="" file="#arguments.path#"
addnewline="yes" output="#varToOutput#">
</cffunction>
<cfscript>
/**
* Converts a query object into an array of structures.
*
* @param query The query to be transformed
* @return This function returns a structure.
* @author Nathan Dintenfass ([EMAIL PROTECTED])
* @version 1, September 27, 2001
*/
function QueryToArrayOfStructures(theQuery){
var theArray = arraynew(1);
var cols = ListtoArray(theQuery.columnlist);
var row = 1;
var thisRow = "";
var col = 1;
for(row = 1; row LTE theQuery.recordcount; row = row
+ 1){
thisRow = structnew();
for(col = 1; col LTE arraylen(cols); col =
col + 1){
thisRow[cols[col]] = theQuery[cols
[col]][row];
}
arrayAppend(theArray,duplicate(thisRow));
}
return(theArray);
}
/**
* Converts an array of structures to a CF Query Object.
* 6-19-02: Minor revision by Rob Brooks-Bilson
([EMAIL PROTECTED])
*
* Update to handle empty array passed in. Mod by Nathan
Dintenfass. Also no longer using list func.
*
* @param Array The array of structures to be
converted to a query object. Assumes each array element contains
structure with same (Required)
* @return Returns a query object.
* @author David Crawford ([EMAIL PROTECTED])
* @version 2, March 19, 2003
*/
function arrayOfStructuresToQuery(theArray){
var colNames = "";
var theQuery = queryNew("");
var i=0;
var j=0;
//if there's nothing in the array, return the empty
query
if(NOT arrayLen(theArray))
return theQuery;
//get the column names into an array =
colNames = structKeyArray(theArray[1]);
//build the query based on the colNames
theQuery = queryNew(arrayToList(colNames));
//add the right number of rows to the query
queryAddRow(theQuery, arrayLen(theArray));
//for each element in the array, loop through the
columns, populating the query
for(i=1; i LTE arrayLen(theArray); i=i+1){
for(j=1; j LTE arrayLen(colNames); j=j+1){
querySetCell(theQuery, colNames[j],
theArray[i][colNames[j]], i);
}
}
return theQuery;
}
</cfscript>
</cfcomponent>
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