On Friday 16 September 2005 18:29, Tomáš Drenčák wrote:
> Thanks a lot.
>
> Another question... You are using pageValidate to set up thisPerson
> property. I'm still little bit confused about page initialization.
> What are pageBeginRender, pageValidate and prepareForRender for? Where
> to initialize e.g. thisPerson from passed personId parameter? I've
> used pageBeginRender, lazy initialization, but which method is
> specially designed for this purpose?
I must admit, this was a bit trial and error.
I pass the personId parameter via the following code in another component.
@InjectPage("Details")
public abstract Details getDetailsPage();
public IPage doShowDetails(int personId) {
Details details = getDetailsPage();
details.setPersonId(personId);
return details;
}
}
Where this code gets set up in the html template for this component as
<div class="surname">
<span jwcid="@DirectLink"
listener="listener:doShowDetails"
parameters="ognl:person.id"
><span jwcid="@Insert"
value="ognl:person.surname"
>Chandler</span></span>
</div>
I think PageBeginRender failed (thinking back to when I orginally had it
here) because there seems to be a validation phase of the page before then,
and I had not set up the record, and had null pointer exceptions.
I think the page initialisation failed because the setPersonId call hadn't
happened (maybe - difficult to remember now) the initialisation got called
when I did the first call to getDetailsPage in the listener above.
--
Alan Chandler
http://www.chandlerfamily.org.uk
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