[flexcoders] keeping server object relationships

[dgigon]

Hi everyone,

Here is a simple design question on which I'd like to have your opinion :

made short : How to keep server object relationships in flex when you do 
several 
calls


Take an example :

2 companies, say Apple and Microsoft, have several clients, among them, 
say Macromedia. (relation Company-Client)
Let's make a flex application which requests (server call) and displays 
all the clients of a selected company.

If I make a first remote call to get Apple's clients, Flex will receive a list 
of objects including an 
Client object for Macromedia.
Later, I select Microsoft, and get Bill Gate's clients. Flex will receive 
another list of objets, including another version of the
Client object for Macromedia.

Although it is the same Macromedia client object on the server, I have now 2 
distinct Macromedia client object in my Flex Application.
And if, for example, I change the name of one Macromedia object to (purely 
fiction) Adobe, the change won't apply on the other objet ...

Damien

[flexcoders] binding to an element of an array (Flex 1.5)

[dgigon]

Hi everyone,

I saw in the documentation that one can't bind to elements of an arrays.
Indeed, it seems that something like label text={someArray[1]}/ does nothing.

I searched through the mailing list archive and made some tests myself, but couldn't find
something really simple.

- The first step seems to put : 
someArray.replaceItemAt(1, item) instead of someArray[1] = item
The reason is that it will make someArray dispatch a modelChanged event.

- I tried several things, including using mx:Model or mx:Binding tags to make the linkage, 
but then I doesn't work, and I couldn't find anyhting better than :
someArray.addEventListener(modelChanged, this);
With an event handling function that does the binding.

Although it is working, it looks a bit dirty. I hope there is some way to do it without any actionscript lines,
just like the other bindings.


- Here is a little example of something that I took as a starting example. What can be done to make it work ?

mx:Script
![CDATA[
var sourceArray = [ one, two, three ]; 
]]
/mx:Script
mx:TextInput id=sourceText text=Replace It ! /
mx:Button label=Update data click=sourceArray.replaceItemAt(1, sourceText.text); /
mx:Label text=sourceArray.getItemAt(1)='{ sourceArray.getItemAt(1) }' /



Thanks,
Damien
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