Hi there,
I've hacked a FormController to support unidirectional binding and added a
reset and a commit method. The code is available here:
http://github.com/KnisterPeter/qooxdoo-formcontroller and could probably
integrated into qooxdoo core. :-)
Maybe I find some time and better integegrate this directly into the
FormController
Regards
Markus Wolf
<http://github.com/KnisterPeter/qooxdoo-formcontroller>
2010/9/30 Markus Wolf <markus.w...@sinnerschrader.com>
> Hi Martin,
>
> yes we have the list controller already working. But we do not only want an
> unidirectional binding. If we do that and have to specify all the
> unidirectional bindings and model set operations on save manually, then the
> databinding is of not much worth then.
> It would be very helpful to have operations like the ones in the eclipse
> jface databinding. There you have the possibility to sync from source to
> target and from target to source with a method call. And during the binding
> setup you can specify for each direction if it should happen automatically
> or on user behalf. To make it more clear below is an example in pseudocode:
>
> var model = { attr1: "value", attr2: "something" }
> var f1 = new Textfield()
> var f2 = new Textfield()
> bind(model, "attr1", {sync: "automatic"}, f1, "value", {sync: "manual"})
> bind(model, "attr2", {sync: "automatic"}, f2, "value", {sync: "manual"})
> ...
> Then every value changes on the model will be shown immediatly in the view
> fields, but changes from the view will not automatically propagated to the
> model.
> Finally on save button click you can call a method like this
> "controller.syncToModel()" and everything from the view is pushed into the
> model. No setter, no getter call required on the user side.
>
> As far as I read the docs this is currently not possible with qooxdoo,
> isn't it?
>
> Regards
> Markus Wolf
>
>
> 2010/9/29 Martin Wittemann <martin.wittem...@1und1.de>
>
>> Hey,
>>
>> that question is really interesting. So interesting I started up the
>> playground at home. ;)
>> So the fact is, that the form controller always sets up the binding in
>> both ways. But luckily, the form controller is not that much more than the
>> object controller in your case. The good thing is, with the object
>> controller, you can set up the binding uni-directional. I made up a little
>> example to show you how you can get it done but I omitted the list
>> controller. Thats the part you already have, right?
>>
>> http://tinyurl.com/3yrqb7m
>>
>> I hope that helps,
>> Martin
>>
>> Am 29.09.2010 um 18:37 schrieb Markus Wolf:
>>
>> Hi there,
>>
>> I have a question about the databinding.
>> We have the following UseCase in our application:
>> 1) We display a list of json/model objects in a qx.ui.list.List widget
>> 2) If the user selects one and pushes an edit button a new window is
>> opened
>> 3) In this window the selected model item from the list is displayed in a
>> form
>>
>> So far everything works well.
>>
>> If the data is edited in the form, then this is propagated directly to the
>> model (as expected) but we would like the data to be transfered back on a
>> user specified event (a save button in our case).
>>
>> How could we setup this using databinding? I could not find any
>> documentation on 'half-bidirectional' databinding.
>>
>> Regards
>> Markus Wolf
>> --
>> Markus Wolf, Developer
>> markus.w...@sinnerschrader.com
>>
>> T +49.40.39 88 55 - 324
>>
>> SinnerSchrader Deutschland GmbH
>> Völckersstraße 38, D-22765 Hamburg
>> Amtsgericht Hamburg HRB-Nr. 63663
>> Geschäftsführer: Matthias Schrader (Sprecher), Holger Blank,
>> Laurent Burdin, Thomas Dyckhoff, Chris Wallon
>> Büros: Hamburg, Frankfurt am Main
>>
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>> <ATT00001..txt><ATT00002..txt>
>>
>>
>>
>>
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>
>
> --
> Markus Wolf, Developer
> markus.w...@sinnerschrader.com
>
> T +49.40.39 88 55 - 324
>
> SinnerSchrader Deutschland GmbH
> Völckersstraße 38, D-22765 Hamburg
> Amtsgericht Hamburg HRB-Nr. 63663
> Geschäftsführer: Matthias Schrader (Sprecher), Holger Blank,
> Laurent Burdin, Thomas Dyckhoff, Chris Wallon
> Büros: Hamburg, Frankfurt am Main
>
> http://www.sinnerschrader.de | Creating Radical Relationships.
>
--
Markus Wolf, Developer
markus.w...@sinnerschrader.com
T +49.40.39 88 55 - 324
SinnerSchrader Deutschland GmbH
Völckersstraße 38, D-22765 Hamburg
Amtsgericht Hamburg HRB-Nr. 63663
Geschäftsführer: Matthias Schrader (Sprecher), Holger Blank,
Laurent Burdin, Thomas Dyckhoff, Chris Wallon
Büros: Hamburg, Frankfurt am Main
http://www.sinnerschrader.de | Creating Radical Relationships.
------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
http://p.sf.net/sfu/novell-sfdev2dev
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