Re: return null?? [was-> Re: modify search form on result page?]
Re: return null?? [was-> Re: modify search form on result page?]
- Subject: Re: return null?? [was-> Re: modify search form on result page?]
- From: Chuck Hill <email@hidden>
- Date: Sun, 08 Aug 2004 08:51:34 -0700
Correct.
At 10:23 AM 08/08/2004 -0500, Michael Engelhart wrote:
>Actually the more I dig into the various threads it seems that
>context().page() is actually what should be called unless I know that
>'this' refers to the right component (which it does in my case) as it
>doesn't work with subcomponents.
>
>Mike
>On Aug 8, 2004, at 10:02 AM, Michael Engelhart wrote:
>
>> In my quest to get a modify search form working by reusing my main
>> search components validation logic, there are several places within my
>> code that have "return null" so that the page redisplays as this is
>> the way all the documentation and books describe how to return the
>> current component. But this doesn't work when I call a components
>> methods from another component. So I changed my
>> return null;
>> to
>> return this;
>>
>> which solves that issue. I decided to investigate why you wouldn't
>> just do this as matter of course in all pages where you want to return
>> the current component (which is essentially what return null is for).
>> Anyway, I saw a thread about return this is the "preferred way" to do
>> this according to a WWDC presentation in 2001. Is this still
>> accurate? Should I always use return this instead of return null?
>>
>> Thanks
>> MIke
>>
>> On Aug 7, 2004, at 10:14 PM, Arturo Pirez wrote:
>>
>>>
>>> On Aug 7, 2004, at 11:02 PM, Michael Engelhart wrote:
>>>
>>>> Thanks Arturo -
>>>>
>>>> Is there any way to use my existing code in InitialSearch to
>>>> validate the modify search form's data and if there is a problem
>>>> redisplay InitialSearch with it's corresponding validation error
>>>> messages?
>>>
>>> Is there anyway to just call validateForSave()? But this isn't an
>>> EO, right? It's just a form? I wonder if you would get anything out
>>> of implementing the NSValidation interface on your search object?
>>> ----
>>> WO in philadelphia - wanna cheesesteak with that?
>>> Please visit webobjects.meetup.com.
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--
Chuck Hill email@hidden
Global Village Consulting Inc. http://www.global-village.net
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