[development] Views 3 custom handler (was Custom Handlers for Views 2)

[jeff at ayendesigns.com]

You confirm what I'd inferred from Peter's message. So...off to read and 
ponder :)

On 11/21/2010 06:45 PM, Larry Garfield wrote:Thanks. That clears up the 
mystery of the term, but implies that I cannot count on 'und' being the 
index.

On 11/21/2010 06:37 PM, Peter Droogmans wrote:
> Und indicates unknown language
>
> Met vriendelijke groeten,
> Peter Droogmans
> 'und' indicates that the field's value does not change with the language of
> the site.  If the field had multiple translations, then und would be replaced
> with the appropriate language code, such as 'en-us' or 'fr'.  For that reason
> you don't want to hard-code 'und', and instead use the appropriate language
> value there instead.
>
> How you get the appropriate language value in that context... I have no idea.
> I actually find the data structure for Fields in D7 to be completely
> incomprehensible and virtually unusable so the fact that you managed to make
> it that far is a miracle. :-)
>
> --Larry Garfield
>
> On Sunday, November 21, 2010 5:20:23 pm jeff at ayendesigns.com wrote:
>    
>> I will write it up. That said, I got it working this afternoon! I'm a
>> little unsure about one part though, where I pluck the field's value
>> from the value array. It seems that there should be a more elegant way
>> of walking to the correct index than this:
>>
>> $values->_field_cache[$this->field_alias]['object']->{$this->definition['fi
>> eld_name']}['und'][0]['safe_value'];
>>
>> and in particular, the ['und'][0]['safe_value'] part of it. In my case,
>> it is predictable that there will only be one instance of the field in
>> the row, so the [0] is ok, otherwise I'd loop. I guess it's the ['und']
>> that is bothering me, especially not knowing what 'und' indicates.
>>
>> On 11/21/2010 01:34 PM, Earl Miles wrote:
>>      
>>> This is an interesting side effect of field API, and you're right. It
>>> will be more difficult to make what used to be simple changes. You are
>>> blazing new territory with this, and what you are doing may be an
>>> uncommon but important need for advanced Views users. Please be sure to
>>> write up what you have discovered so that we can document this and
>>> hopefully the next person to do it doesn't have to spend weeks figuring
>>> out the levels of abstraction to make deep modifications to field api
>>> fields.
>>>