mORMot Open Source

Celso

Member

Registered: 2013-05-14

Posts: 55

UpdateFromServer

My application is client / server.
On the side of the client I use TClientDataSet.
I'm trying to do a routine check for updates to the database.

so do:

procedure TForm1.Timer1Timer(Sender: TObject);
var
    v: TSQLTableJSON;
    v1: boolean;
    v2: Rawutf8;
begin
    v1: = True;

    v2: =  DataSetToJSON (MyClientDataSet);

    v: = TSQLTableJSON.Create ('',pointer (v2), length (v2));
    if frmDM.fRestClient.UpdateFromServer ([v], v1) then
         // change records;
end;

Always informs that there was no update, even if another client update a record.

What am I doing wrong?

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,655

Website

Re: UpdateFromServer

You are comparing from a local copy of the data.

UpdateFromServer only works when the TSQLTableJSON comes directly from the server.

Celso

Member

Registered: 2013-05-14

Posts: 55

Re: UpdateFromServer

Thanks

Celso

Member

Registered: 2013-05-14

Posts: 55

Re: UpdateFromServer

Ab,

I'm not getting it.

Please help me give way as I do. I need a routine that, from time to time, check if there are updates on records that users are accessing