can send data from CF to Flash but not vice-versa -- macromedia flash flash remoting

macromedia flash flash remoting : can send data from CF to Flash but not vice-versa

eapostol
6/23/2004 5:19:29 AM

Hello - (this is reposted - apologies in advance but not sure if it was
submitted)

I am running a dev server with CFMX Server 6.1, Flash MX 2004 and Flash
Remoting components. I was testing Flash remoting by creating a simple
username/password authentication app.

-The form is in flash, with fields called username and password.
-I send them packaged as properties in an object

var params=new Object();
params.username=_root.username.text;
params.password =_root.password.text;

The Flash Comm App Debugger tracks it as it is being passed to the ColdFusion
Page

MethodName: "xxx.yyy.dev.remoting_study.test_07.login"
Parameters (object #2)
.....[0] (object #3)
.........."[object Object]"
.....[1] (object #4)
..........password: "1234"
..........username: "abcd"

However, once the data is received in the CF page, I cannot seem to "get the
data" using FLASH.params.

I tried FLASH.params[1].username and FLASH.params[1].password for example,
but I get an "USERNAME is undefined" or "PASSWORD is undefined" when I try to
retrieve them, I have tried passing the data from Flash in various other
fashions

myService.login(returnObj,params) // orignial
myservice.login(returnObj,param.username,param.password); // another way
myService.login(returnObj,{username:xxxx, password:123 }); // another way

and also tried alternatives to receiving the data in the ColdFusion
page/service
(a FOR loop to read the array, reading it like a struct() object)...but I keep
on getting the data passed as undefined...

However, I can set values in the FLASH.params scope in the web page and pass
it from the CF page back to flash, ex.

<cfscript>
fReturn=StructNew();
fReturn.status=success;
FLASH.result=fReturn;
// etc
</cfscript>

Anyone encounter this before??? Long and Short...I can pass the data from
Flash to CF, but the CF does not receive it; I can create and process data from
a CF page and pass it back to Flash. Am I missing something with respect to the
syntax that retrieves the data? All connections, gateways etc. are fine
otherwise.

Look forward to your responses....

Edward

Hi_C
6/24/2004 3:12:58 AM

try capitalizing the returned variables from CF. also, for testing purposes
return the entire struct outside of the cfscript tag.

try this as a test. pass your username and password variables as you listed.
then in your CF function, do this:

<cfscript>
fReturn=StructNew();
fReturn.un = FLASH.params[1].username;
fReturn.pw = FLASH.params[1].password;
</cfscript>
<cfreturn fReturn>

and remember, CF returns variables in CAPS. therefore, to access the returned
variables in your flash return handler you would grab it with the following:

testUserResult = result.UN;
testPasswordResult = result.PW;

if you trace the above flash variables it should spit out the original
username and password variables from your flash app. let me know if this is
still trouble or if you have questions.

HI_C

Edward Apostol
6/29/2004 12:14:06 PM

Hi "HI_C"

Sorry for the delayed response, I actually tried to respond earlier but the
web-based version of the forums seem to be down, so I had to fire up my old
news reader to this message. The first thing I have to say is a a Homer
Simpson DOH! for not checking for caps. There was two things I did to get
the info from Flash to CF -

1. The vars sent from Flash to CF were lower cased in Flash, but I
capitalized them in CF and that seemed to work.
2. I sent the info from flash stored within an OBJECT. So, I expected to
receive it as a "struct" (?) within CF - however, this is how I passed
it....

loginBtn.onRelease = function ()
{
if ((_root.username.text != "") && (_root.password.text != ""))
{
var params = new Object ();
params.USERNAME = _root.ud_username.text;
params.PASSWORD = _root.securityKey_open.text;

// lets pass it to CF!!!
_root.srv.login (params, res);

// pass the res object and the params array over
} else
{
_root.errorMessage._visible = true;
_root.errorMessage.text = "Please completely enter both username and
password";
};
};

where srv.login in my code refers to

srv = conn.getService("dir_x.dir_y.app", this); // dev server remoting

So my Comm App debugger reports that info is being passed, and that CF is
returning info...which is good, except now my code does not seem to pick it
up.
In the code above, I created an object called res...the code for res looks
like this in Flash

// response Object;
res = new Object ();

res.onResult = function (result)
{

// eja: "success" msg indicates whether or not the login was successful.
var scs = Boolean (result.success);

if (scs)
{
trace ("eja: connection was a success");
}

// end fn
}

res.onStatus = function (status)
{
trace ("status=" + status.description);
trace ("the onStatus event handler fired");
};

However, I cannot get the onResult event handler fire... (nor the onStatus,
I believe).
As I said the debugger picks up the response from CF. My CF code that
returns the values to Flash is are you wrote in your previous e-mail...

Does it have to do with the fact that the name of my var in CF is called
fReturn, not res????

Hope you can help me. BTW a lot of the info I have been trying is based on a
Flash Remoting MX book, but the code in that book does not seem to work very
well.

cheers

Edward

[quoted text, click to view]

Edward Apostol
6/29/2004 12:14:18 PM

Edward Apostol
6/29/2004 12:38:15 PM

Edward Apostol
6/29/2004 12:48:46 PM

Edward Apostol
6/29/2004 12:57:06 PM

Edward Apostol
6/29/2004 12:58:12 PM

Hi_C
7/2/2004 11:42:51 PM

i see the forums are back up...good!

first off, let me point out that regardless of whether or not your variables
in flash are caps or not, coldfusion will return them as caps by default (at
least thats what v6.1 does). therefore, your should reference them as caps in
flash.

next, you are calling the cfc with the result handler and the params object in
the wrong place. you need to reverse them. that should take care of your
problems.

you have:
// lets pass it to CF!!!
_root.srv.login (params, res); // WRONG

should have:
// lets pass it to CF!!!
_root.srv.login (res, params); // correct

hi_c

ahouglum NO[at]SPAM citinteractive.com
7/6/2004 1:35:07 AM

I seem to be having the same problem. I can get data from CF to Flash
MX 2004 but I can't sent "Struct" or "Query" data back to CF from
Flash... is there a trick?

[quoted text, click to view]

Got something to say? Click here to post a reply to this thread.

Don't see what you're looking for? Try a search.

View other messages about macromedia flash flash remoting

home · blog · groups

Questions? Comments? Contact the dn