[Seaside] [Q] callbacks in forms... or data passing
Brian Brown
rbb at techgame.net
Fri Jun 13 00:41:24 CEST 2003
On Thursday, Jun 12, 2003, at 14:57 America/Denver, Julian Fitzell
wrote:
> Brian Brown wrote:
>> Since in textInputWithValue:callback:, the callback: is a block, does
>> this mean that every input on a form could potentially send a
>> different message to different receivers?
>
> Yes, every text input can do whatever it wants with its new value.
Okay, so when the client hits the submitButton, how does the (for
example) defaultAction get processed. The callbacks on text inputs and
other elements aren't part of defaultAction, so when do they get
processed? I'm just trying to understand the flow of forms, and how
they can relate to components. So far, it's been quite nice, making
default selections and what not...
>
>> When updating data in an instance or collecting form information to
>> create an instance of a class, would you just use the callbacks to
>> set instance variables like in WSMPasswordEditor, or is there some
>> other idiom that should be used?
>
> If all you want to do is hook up a text field to a instance variable
> of an object you can use #textInputOn:of:
>
Ok, thanks for the pointer... the other thing I was wondering is if
that is a "normal" way of doing things... some set of classes that the
Seaside app is providing the front end to, and then adding instance
variables to WAComponent subclasses to store form information and then
use it with those back end classes.
thanks Julian.
> Julian
>
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