[ic] mv_check vs. mv_click ?

[Mike Heins]

Quoting Dan B (db@cyclonehq.dnsalias.net):
> At 11:48 AM 5/5/2001 -0400, you wrote:
> >I've been playing with mv_check but I also fell on mv_click...I have
> >problems to differentiate them.
> >
> >I've been reading the doc but all i can retrieve is that mv_click "might"
> >be the same except that it will occur before...(before what?).
> >
> >I also saw in the doc somewhere they talk about mv_click but the example
> >involves an mv_check.
> >It is the last example of the "One-Click Multiple Variables" section.
> >
> >So can anyone help me clarify this?
> 
> Nope.  But I can tell you what I learned regarding the "when" and "before 
> what":
> 
> mv_click seems to happen before everything else.  I.e. form values have not 
> been updated to the users' browser session input.  This is where you can do 
> something before everything else, but *after* the user clicked.  I think of 
> it as just happening at the same time the page loads, but after the user 
> clicks.
> 
> mv_check seems to happen after everything else, but before processing (i.e. 
> moving to mv_nextpage, etc.).  For me, that's the time to mess with user 
> inputs (which are now updated into [value ...]) and other things.
> 
> BTW, the above is probably nonsensical and horribly incorrect.  :-)  Let me 
> state, "I stand corrected" now so that I don't have to do it when Ed, CFM, 
> or Mike corrects me.

Actually, you are correct. So you should "stand correct".

The best way to see what is happening is actually to look at
the subroutine "do_process" in bin/interchange -- it will show:

    1. Every form action does an mv_click, which happens before
    anything (except mv_form_profile in 4.7.x).

    2. The form action is determined, and its subroutine pulled
    from the %form_action hash.

    3. If the form action calls an "update_user", then mv_check
    is called at the end of that routine.

Actually, I wrote what I thought was a fair description of this
process but cannot now find it in the docs. Sigh. 

-- 
Red Hat, Inc., 131 Willow Lane, Floor 2, Oxford, OH  45056
phone +1.513.523.7621 fax 7501 <mheins@redhat.com>

Fast, reliable, cheap.  Pick two and we'll talk.  -- unknown