Yeah, I was thinking I shouldn't use the constructor directly.
Luckily, the model has been pretty stable as this is an old app. But of course
now that I said that... probably will change tomorrow.
I am not about to rewrite the saving and retrieving of the query as that works
very well and it also has a lot of custom components in it.
Anyway, on to Plan b for now.
Thanks
James
On Mar 26, 2012, at 3:33 PM, Ramsey Gurley wrote:
> You are getting the NPE because you are not using a factory method to create
> your D2W pages. The factory creates a d2wContext. You should never use the
> WOComponent constructor directly either. Always use WOApp, WOAction, or
> WOComponent's pageWithName() factory method.
>
> If you want to reuse a query, ERD2W does that :-) Look at the saved queries
> stuff in ERD2W. I believe David Holt has an example of this somewhere.
>
> You'll want to be careful with that though. Your model changes over time. The
> queries you store in the database don't. You'll need to validate them before
> you run them. I don't know if ERD2W does this for you. I think it does, but
> I've not gotten around to using saved queries just yet. (I need to separate
> the implementation from the userPreferences stuff for it to be useful to me.
> You may have the same requirement.)
>
> Ramsey
>
> On Mar 26, 2012, at 12:09 PM, James Cicenia wrote:
>
>> I have a very custom D2WQueryPage.
>>
>> I would like to reuse the results of this querypage.
>>
>> Is this possible?
>>
>> I am instantiating it as such:
>>
>> TOSD2WQueryPage queryPage = new TOSD2WQueryPage(context());
>> queryPage.setEntityName("PortfolioProject");
>>
>> However, I get a null exception:
>>
>> at
>> com.webobjects.directtoweb.D2WComponent.setEntity(D2WComponent.java:336)
>> at
>> com.webobjects.directtoweb.D2WComponent.setEntityName(D2WComponent.java:356)
>> at com.tos.tab.TabSystem.changeReportProject(TabSystem.java:403)
>>
>> Why? I am setting the Entity Name? Or is this just not possible?
>>
>> Thanks
>> James
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