User Management for an Internet Access Control Application - Stats Page

(Page 4 of 4 )

That covers the user management module. Next we will look at the stats page. I’ve not fully implemented this module because it is an optional extra. But I assume that if you wanted to see any kind of statistics, that you will want to see the running total, i.e. how much the business has made so far. So I’ve written some SQL queries that you can choose from to display the kind of information that you would want:

unit stats;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls;

type

TForm8 = class(TForm)

StaticText1: TStaticText;

StaticText2: TStaticText;

StaticText3: TStaticText;

Label1: TLabel;

Label2: TLabel;

Label3: TLabel;

StaticText4: TStaticText;

procedure FormShow(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

Form8: TForm8;

implementation

{$R *.dfm}

uses logon;

procedure TForm8.FormShow(Sender: TObject);

var

inv,pending,paid:integer;

rtotal:real;

begin

rtotal:=0;

{

//get the total by this user

form3.q.Close;

form3.q.SQL.Text:='Select sum() from mula';

form3.q.Open;

inv:= form3.q.RecordCount;

label1.caption:= inttostr(inv);

//

form3.q.Close;

form3.q.SQL.Text:='Select * from mula WHERE status = :stat';

form3.q.Parameters.ParamByName('stat').Value:='paid';

form3.q.Open;

paid:=form3.q.RecordCount;

label3.caption:= inttostr(paid);

}

//runnning total

form3.q.Close;

form3.q.SQL.Text:='Select total from mula';

form3.q.Open;

form3.q.First;

while not form3.q.EOF do

begin

rtotal:=rtotal + form3.q.fieldbyname('total').AsFloat;

form3.q.Next;

end;

label3.caption:='$'+ floattostr(rtotal);

end;

end.

Conclusion

This concludes the discussion of the server part of the access control application. The next part of the series on Internet access control will focus on the client application.

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