Hello Christian,
now its much clearer what you try to achieve. Thanks for the details
on it. :)
I'll try to write a test for exactly your secenario and check if i can
reproduce the "reser" error you described. Looks like a bug in the
single value binding now. I'll get back to you as soon as I have some
results.
Best,
Martin
Am 19.06.2009 um 21:48 schrieb panyasan:
>
>
> Martin Wittemann wrote:
>>
>> Hi Christian,
>>
>> I did take a look at your code but could not find the place where you
>> use the bindValue method. So I could not see where the problem is and
>> why the reset is called.
>>
>> I have to admit that I don't get completely why you need to do it the
>> way you do it. What is targetObject and what is the targetPath?
>>
>
> Sorry if I have been unclear. qcl.config.Manager has has a "model"
> property:
>
> /*
> * The config manager's data model which can be
> * bound to a data store. It must be an qx.core.Object
> * with two properties, "keys" and "values", which
> * contain config keys and values, respectively and
> * will be converted to qx.data.Array objects
> */
> model :
> {
> check : "qx.core.Object",
> nullable : true,
> event : "changeModel",
> apply : "_applyModel"
> }
>
> The model property is bound to a JsonRpc datastore's model property,
> so when
> the datastore has finished loading, it's model property is
> transferred (in
> fact, it is the same object, as you have designed the mechanism). It
> would,
> for example, look like this (pseudo-code):
>
> property 'model' : qx.core.Object
> {
> property 'keys' : qx.data.Array(["foo","bar","baz"]),
> property 'properties' : qx.data.Arrray([1,2,3])
> }
> which corresponds to the configuration value map { foo:1,bar:2,baz:
> 3 }.
>
> So if I want to bind the value of a textfield tf to the value of the
> config
> key "bar", I would do
>
> qcl.config.Manager.getInstance().bindValue("bar",tf,"value",true);
>
> Here is the bindValue method:
>
> /**
> * Binds a config value to a target widget property in both
> * directions.
> * @param key {String}
> * @param targetObject {qx.core.Object}
> * @param targetPath {String}
> * @param updateSelfAlso {Boolean} Optional, default undefined
> * @return
> */
> bindValue : function( key, targetObject, targetPath,
> updateSelfAlso )
> {
> var index = this._getIndex( key );
> /*
> * update the target widget property when config value changes
> */
> targetObject.bind( targetPath, this, "model.values[" + index +
> "]" );
>
> /*
> * update config value if target widget property changes
> */
> if ( updateSelfAlso )
> {
> this.bind( "model.values[" + index + "]", targetObject,
> targetPath
> );
> }
> }
>
> So each time the config value changes (when loaded from the server
> or is set
> manually), the value of tf changes. On the other hand, if the user
> changes
> the value of tf, the config value is updated. Since the values are
> kept in a
> qx.data.Array, internally, I have to bind tf.<value> to
> qcl.config.Manager.getInstance().getModel().<values>[1].
>
> So in my example, targetObjet is the textfield tf and targetPath is
> "value".
>
> Does that make the case clear?
>
> Thanks,
>
> Christian
>
>
>
>
> --
> View this message in context:
> http://www.nabble.com/Databinding%3A-TypeError%3A-target-%22reset%22-%2B-qx.lang.String.firstUp%28lastProperty%29--is-not-a-function-tp24099676p24117746.html
> Sent from the qooxdoo-devel mailing list archive at Nabble.com.
>
>
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