Re: [Apc-aa-coders] Adding new constant type - slices

[Honza M. <hon...@ec...>]

On =C8t, 2003-04-17 at 10:18, Mitra wrote:

> If I want to add a new constant type, how would I go about it - what=20
> are the set of places that need it implementing.


Add "all slices" to $constants array in /admin/se_inputform.php3 (row
about 155). Right now there are listed two kinds of "constants":
 1) real constants and=20
 2) slices.=20
The only difference in field setting in database is, that slices have
'#sLiCe-' prefix before its ID. We then look for '#sLiCe-' prefix in
show_fnc_*() functions (like show_fnc_rio() - all in
/include/itemfunc.php3). If we find the '#sLiCe-' prefix, we call
GetItemHeadlines() function, if not, we call GetConstants() function.

So, you probably will add new prefix for 'slices' in
/admin/se_inputform.php3 and then you will modify all functions in=20
/include/itemfunc.php3, which uses constants (just search for
'#sLiCe-'). It will be probably best to cteate special function
FillArrayFromConstants(), which then will be called from all
show_fnc_*() functions. It could looks like:

function FillArrayFromConstants($constgroup) {
  switch( substr($constgroup,0,7) ) {
    case '#sLiCe-':=20
      return GetItemHeadlines( substr($constgroup, 7), "" );
    case '#mItRa-':    // your prefix for slices selectbox 7 char long
      return YourFunctionToGetSlices( substr($constgroup, 7), "" );
    default:=20
      return GetConstants( $constgroup );
  }
}

I'm not sure, how you plan to restrict listed slices, or if you want to
show here all slices, but it's up to you.

   Honza



> Specifically what I need is a constant type which is the list of=20
> slices. Obviously I'd like to reuse as much of the existing code as=20
> possible - so for example it could be the code from the existing=20
> Select box.
>=20
> In case you are interested .... the reason I want to do this, is that=20
> I have a web site which has a number of almost identical=20
> sub-sections, each of which has its own set of slices for different=20
> applications  ... So I have a "Sustainable Agriculture" section and a=20
> "Event organizers" section. So in the item that relates to=20
> Sustainable Agriculture - gives a short summary, and a pointer to its=20
> icon etc, I also want to put the SliceID of the slices that contain=20
> those applications - e.g. a Directory, a Blog, a collection of=20
> Imported News, etc.   Which means that in the Fields of my main=20
> slice, I want to be able to say that a specific field is selected=20
> from the Constant Group "Slices"
>=20
> - Mitra
>=20
> --=20
> Mitra Technology Consulting -  www.mitra.biz - mi...@mi...
> 02-6684-8096  or 0414-648-0722
>=20
> Life is a Mystery to be Lived, not a Problem to be Solved
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