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https://issues.apache.org/jira/browse/TAP5-754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756746#action_12756746
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Oleg Smirsky commented on TAP5-754:
-----------------------------------
I would like to extend the original request - make "dataModel" of the Grid
easily accessible in subclasses. Solution above requires replacing the class in
the application (put my own copy of Grid class in org.tapestry....). I'm trying
to achieve both no sorting and some other fancy manipulations with BeanModel -
it is very painful.
My proposal:
Provide some hook between setting Grid.model parameter (from page or from
defaultModel()) and using this parameter in getDataModel
Currently I can create BeanModel for Grid.model and do some modifications in
the page. But I can't do those modifications in the plain subclass. Probably I
could wrap Grid in another component with TML template, but that's too much
work. And the issue is common for all component parameters IMO - you can't
provide initialization method in subclass of the component (if I'm wrong,
educate me).
Current issues are:
- getDataModel does some initialization and I want to modify that
initialization part
- I can't override getDataModel completely (=not to call super.getDataModel()),
because properties like model, dataModel, add, include, exclude etc. are private
- I can't override getDataModel, call super.getDataModel and do additional
initialization, because it is too late in the process
> Introduce easier way to disable column sorting in Grid
> ------------------------------------------------------
>
> Key: TAP5-754
> URL: https://issues.apache.org/jira/browse/TAP5-754
> Project: Tapestry 5
> Issue Type: Improvement
> Affects Versions: 5.1.0.5
> Reporter: Vjeran Marcinko
>
> I have seldom need for Grid sorting so I almost always turn it off. Currently
> this is a bit awkward procedure. I also rarely configure Grid with BeanModel
> created in my page class, because template way of configuring Grid is
> sufficient for me.
> I have to introduce 3 new objects just for this purpose in this class, and
> also do some coding in setupRender():
> @Property
> private BeanModel model;
> @Inject
> private BeanModelSource beanModelSource;
> @Inject
> private ComponentResources componentResources;
> void setupRender() {
> ....
> model = beanModelSource.createDisplayModel(Employee.class,
> componentResources.getMessages());
> List<String> propertyNames = model.getPropertyNames();
> for (String propertyName : propertyNames) {
> model.get(propertyName).sortable(false);
> }
> }
> Tapestry 4 had simple way of using character "!" in template that achieved
> the same thing so I feel kinda nostalgic for it...
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