this is basically what I did, but used arrays rather then ab object.
shameless plug :
https://www.dropbox.com/s/075k0ap7afervs8/Sets_Component_v1.0.zip?dl=0
Distributed as shareware $15 ($35 for source & a suite testing
routines), it is a compiled/built component created in v13. If you like
it you are free to reuse/distribute etc.
On Mon, 17 Jul 2017 10:38:04 +0200, Rob Laveaux via 4D_Tech wrote:
> Maybe you should take a slightly different approach here.
>
> In the JavaScript framework that comes with NTK Plugin, 4D sets are
> implemented as follows (simplified version).
>
> function RecordSet( table )
> {
> assert( table instanceof Table, 'Table object expected' );
> this.id = UUID.new();
> this.table = table;
> app.eval4D( 116, 'CREATE SET', '([' + this.table.name + '];"' +
> this.id + '")' );
> }
>
> So basically a RecordSet is an object with two properties: the
> id/name of the set (a UUID) and a reference to the table. There are
> some more set related functions that build upon this, but I have not
> listed those here.
>
> If you would translate this into 4D, you would get something like this:
>
> // (PM) Set_Create
> // $1 = Table
> // $0 = RecordSet object
>
> C_POINTER($1;$table)
> C_OBJECT($0;$recordSet)
> C_TEXT($id)
>
> $table:=$1
> $id:=Generate UUID
>
> CREATE SET($table->;$id)
>
> OB SET($recordSet;"table";$table;"id";$id)
>
> $0:=$recordSet
>
> Now you have the name of the set and the table it belongs to wrapped
> in a single variable. You can then add some more wrapper methods
> which use this RecordSet object.
>
> HTH,
>
> - Rob Laveaux
>
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>
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