link tracker with cookie to stop repeat clicking

[fran7]

Hi, I have this very nice link tracker script that works a treat.
The only thing is it doesnt restrict repeat clicking.

Is there a simple method to add a cookie feature to this so that people cannot vote twice. I prefer cookies over ip recording. Any pointers would be a great help.

%@ Language=VBScript %>
<%
Option Explicit              ' Never code without it!
Response.Buffer = True       ' Make sure we can redirect later

' The constants I use in this script...
' pulled directly from adovbs.inc
Const adOpenForwardOnly = 0
Const adOpenDynamic = 2
Const adLockReadOnly = 1
Const adLockPessimistic = 2
Const adCmdText = &H0001

' This needs to be ' for SQL Server and # for Access
Const DATE_DELIMITER = "#"

Dim strName                  ' Friendlyname of the redirect
Dim strId                  ' id the redirect
Dim cnnLinkTracker           ' ADO objects
Dim rsLinkTracker
Dim strSQL                   ' SQL command building area
Dim iRedirectId              ' id of the redirect for logging process

' Get name of location to go to
' I simply call this name so to call the script it would look
' something like this:
' http://server/linktracker.asp?id=asp101
' where asp101 is the friendly id from the database
strId = Request.QueryString("id")

' Make it DB friendly just in case a ' got in somehow
strId = Replace(strId, "'", "''")

' Create a new connection
Set cnnLinkTracker = Server.CreateObject("ADODB.Connection")

' Your connection string goes here!
' This one expects an Access database in the same place as this script
cnnLinkTracker.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & _
	Server.MapPath("/xxxxxxxxxxxx"), "", ""

' Create a recordset
Set rsLinkTracker = Server.CreateObject("ADODB.Recordset")

' Get the record we're looking for by passing it the name
' we got from the QueryString.  I'm prebuilding the SQL command
' to make it easier to debug if we need to.
strSQL = "SELECT PostCard, Headline  FROM tblGreet " & _
	"WHERE PostCardID=" & strId & ";"
' Quick and dirty debugging when something goes wrong.
'Response.Write strSQL

' Send the command to the database to get the appropriate records
rsLinkTracker.Open strSQL, cnnLinkTracker, _
	adOpenForwardOnly, adLockReadOnly, adCmdText

' If we got back any results then we know where to send them
' o/w I just send them to our home page for lack of a better
' place to send them.
If Not rsLinkTracker.EOF Then
	' Get redirect Id # from recordset
	iRedirectId = rsLinkTracker.Fields("PostCard").Value

	' Get location to send the user to
	strName = rsLinkTracker.Fields("Headline").Value
	
	' We've got all the info we need so close our recordset
	rsLinkTracker.Close
	
	' I now recycle the recordset for the logging process.
	' Lots of people would argue with me about this, but I
	' know I'm doing it and this is my code so if you don't
	' like it feel free to change it, but I'm not going to!
	
	' Start logging process
	
	' Build out SQL String ahead of time.
	' This should get us the record containing the information
	' for the selected link for today's date if one exists.
	strSQL = "SELECT link_id, hit_date, hit_count " & _
		"FROM tblLinkTrackerLog " & _
		"WHERE link_id = " & iRedirectId & " " & _
		"AND hit_date = " & DATE_DELIMITER & Date() & DATE_DELIMITER
	
	' Standard debugging step when something goes wrong!
	'Response.Write strSQL
	
	' Send the command.
	rsLinkTracker.Open strSQL, cnnLinkTracker, _
		adOpenDynamic, adLockPessimistic, adCmdText
	
	' If it's EOF then it's the first hit of the day and we need
	' to add a new record o/w we simply update the existing hit
	' count of the record by adding one to it.
	If rsLinkTracker.EOF Then
		rsLinkTracker.AddNew
		
		rsLinkTracker.Fields("link_id").Value   = iRedirectId
		rsLinkTracker.Fields("hit_date").Value  = Date()
		rsLinkTracker.Fields("hit_count").Value = 1
	Else
		rsLinkTracker.Fields("hit_count").Value = _
			rsLinkTracker.Fields("hit_count").Value + 1
	End If

	' Save changes to the data
	rsLinkTracker.Update
Else
	' If no match send em to our home page
	strName = "/"
End If

' Close our recordset object
rsLinkTracker.Close
Set rsLinkTracker = Nothing

' Kill our connection
cnnLinkTracker.Close
Set cnnLinkTracker = Nothing

' Send them on their merry way using the location we got
' from the database!
Response.Redirect "http://" & strName
%>

Thanks
Richard

[fran7]

cookie if clause

Hi, I got this cookie if clause done but it doesnt seem to work. I mean it doesnt stop someone clicking 100 times, it will record all 100. It is meant to, with the use of the cookie to stop after the first. Can anyone see why? Any help would be great.
Thanks
Richard

 ' Send the command.
 rsLinkTracker.Open strSQL, cnnLinkTracker, _
  adOpenDynamic, adLockPessimistic, adCmdText
	
	'Establish cookie for unique hit Counting
	
  Response.Cookies("Visited").Expires=date+1 
  strVisited = Request.Cookies("Visited")
 
 ' If it's EOF then it's the first hit of the day and we need
 ' to add a new record o/w we simply update the existing hit
 ' count of the record by adding one to it.
 
 If rsLinkTracker.EOF Then
  rsLinkTracker.AddNew
  
  rsLinkTracker.Fields("link_id").Value   = iRedirectId
  rsLinkTracker.Fields("hit_date").Value  = Date()
	rsLinkTracker.Fields("hit_count").Value = 1
	
	Response.Cookies("Visited") = "yes"
	' Save changes to the data
   rsLinkTracker.Update
 Else
   If strVisited = "" Then
		Response.Cookies("Visited") = "yes"
		'Increment the visitor counter number by 1
		rsLinkTracker.Fields("hit_count").Value + 1
		' Save changes to the data
    rsLinkTracker.Update
	End If	 
 End If

[jhardman]

How do you check when you record votes whether they have the cookie?

Jared