[development] Searching for AHAH! instead of AHAH?

[Earl Miles]

On 12/30/2010 4:08 AM, Pierre Rineau wrote:
> But I still don't understand the real purpose of making form that are
> not #tree'd by the way. #tree is good, and at least it ensures that data
> will have the same structure than the form (and more than that, can
> avoid name conflicts).

Because often the hierarchy is used for organizationl purposes and not
actually changing the data. For example, you might put buttons in a
group simply to ensure they stay together (and then weight the group
down so that form alters put their info in the right place). Fieldsets
are accomplished using a specific #type but you don't usually want the
fieldset to appear as part of the return data. Those are the two biggest
examples I can think of.