STOP SENDING THE SAME ISSUE #124 100 TIMES!!!!
-----Original Message-----
From: CF-Talk [mailto:[EMAIL PROTECTED]]
Sent: Friday, November 17, 2000 6:24 AM
To: [EMAIL PROTECTED]
Subject: CF-Talk V1 #124
CF-Talk Fri, 17 Nov 2000 Volume 1 : Number
124
In this issue:
RE: Automatically Terminating Sessions
Re: weird error
RE: [cd-rom based applications]
Re: How To Determine Logged In Users
Real Life Math Computations....
RE: Real Life Math Computations....
Re: PCodeDocumentNodeImp::validateSelf
RE: Real Life Math Computations....
RE: Real Life Math Computations....
RE: Real Life Math Computations....
----------------------------------------------------------------------
Date: Fri, 17 Nov 2000 10:18:31 GMT
From: "Michael Thomas" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: RE: Automatically Terminating Sessions
Message-ID: <[EMAIL PROTECTED]>
1 thing comes to mind & thats the OnUnLoad event handler in javascript. This
usually goes into the <body> tag specified iwthin your HTML pages. You could
have this setup to open a new window on Unload like you've probably seen a
thousand sites do. In this case the popup window/page would only contain the
cf code to kill the session.
If your really slick just have the page contain one line of javascript code
which would access the close() method of the window object, so that once the
page popups it will kill the session & the window at the same time. This
would happen so fast that most users wouldnt even see the window popup in
the 1st place. Good luck.
>From: "Paul Mone" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: CF-Talk <[EMAIL PROTECTED]>
>Subject: RE: Automatically Terminating Sessions
>Date: Thu, 16 Nov 2000 22:17:09 -0800
>
>If you're that concerned about ghost sessions, maybe you should lower the
>timeout length.
>
>-----Original Message-----
>From: AustralianAccommodation.com Pty. Ltd.
>[mailto:[EMAIL PROTECTED]]
>Sent: Thursday, November 16, 2000 2:44 PM
>To: CF-Talk
>Subject: Automatically Terminating Sessions
>
>
>I do not have a logout facility in my cf site and all sessions stay active
>until there has been 30 minutes in inactivity and then the session times
>out.
>
>Are there any ways of terminating a session based on the user closing the
>browser or else leaving the site and visiting another site. ??? I also need
>to action some script when ever the session has been terminated so this
>script will need to be incorporated in what ever termination process there
>is available. I do not want to simply have a logout button as this is
>relying on the user to log out which many will not be bothered doing
>
>any ideas as always would be greatly appreciated
>
>
>Kind Regards
>
>Claude Raiola (Director)
>AustralianAccommodation.com Pty. Ltd.
>Email: [EMAIL PROTECTED]
>Developers Of:
> Website: www.AustralianAccommodation.com
> Website: www.AccommodationNewZealand.com
>
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Structure your ColdFusion code with Fusebox. Get the official book at
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------------------------------
Date: Fri, 17 Nov 2000 10:21:57 GMT
From: "Michael Thomas" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: weird error
Message-ID: <[EMAIL PROTECTED]>
Only thing I can say is to perhaps incorporate a default parameter within
the page like so:
<cfparam name="Month" default="blah" type="date">
At least this would stop the error from happening on those rare occassions
as you say.
>From: "Jon Hall" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: CF-Talk <[EMAIL PROTECTED]>
>Subject: weird error
>Date: Thu, 16 Nov 2000 14:06:15 -0500
>
>I have a form field on a site with two select boxes for month and year. For
>some strange reason, on odd occasions the select boxes fields do not get
>posted. I cannot for the life of me recreate this error.
>The only odd thing I can see is the browser is listed as Cold Fusion
>4.0...?
>
>jon
>
>Error resolving parameter MONTH
>ColdFusion was unable to determine the value of the parameter. This problem
>is very likely due to the fact that either:
>
> 1.. You have misspelled the parameter name, or
> 2.. You have not specified a QUERY attribute for a CFOUTPUT, CFMAIL, or
>CFTABLE tag.
>The error occurred while evaluating the expression:
>
> expdate = "#month##year#"
>The error occurred while processing an element with a general identifier of
>(CFSET), occupying document position (2:1) to (2:33).
>
>Date/Time: 11/15/00 09:15:37
> >>Browser: ColdFusion 4.0<<
>Remote Address: 216.136.29.251
>Template: e:\www\cookbrothers.com\shoppingcart\order\completeorder.cfm
>
>
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------------------------------
Date: Fri, 17 Nov 2000 10:49:51 -0000
From: "Neil Clark" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: RE: [cd-rom based applications]
Message-ID: <[EMAIL PROTECTED]>
Okay, yep the best way to do this is to use MM Director with Intergration
New Media's [http://www.integration.qc.ca/] database plugin 'V12DBE' ver. 3
I think. I did quite a complex recruitment type thing on a CD - worked
really well. I could do all my DB stuff in access and then import it into
V12's custom DB and then use that.. was a little unstable but that was V12
ver 2 so maybe they have fixed it.
Neil
------------------------------
Date: Fri, 17 Nov 2000 10:46:41 GMT
From: "Michael Thomas" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: How To Determine Logged In Users
Message-ID: <[EMAIL PROTECTED]>
Indeed encrypting & decrypting your cookies data is the way to go if indeed
you use cookies for storing sensative information. Creating an algorithm of
your own means would be preferred.
>From: "Justin Scott" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: CF-Talk <[EMAIL PROTECTED]>
>Subject: Re: How To Determine Logged In Users
>Date: Thu, 16 Nov 2000 14:16:25 -0800
>
> > Actually, the way I do it is set a cookie. Then at the top of all the
>pages
> > that are "login" protected, I check for the cookie.. if it exists I know
> > they are logged in since the cookie can't be set unless they are
> > successfully login.
>
>What type of cookie do you set? The biggest mistake I see people make with
>session management is just setting a Member_ID cookie that holds their
>record ID, or a "loggedin" cookie, or some other very insecure means.
>
>The problem with doing this is that using some very crafty perl script, or
>even something as simple as the a cookie editor, someone could crack into
>your site and get personal/confidential information, or even cause major
>damage.
>
>The way to combat this is to make the session cookie something that nobody
>would be able to crack, like setting it with something like this...
>
>
><!--- Create the session value of doom. --->
><CFSET Variables.New_Session_ID = CreateUUID() & Right(GetTickCount(), 6)>
><!--- Assign it to the given user in the database for authentication. --->
><CFQUERY DATASOURCE="#Variables.DS#">
> UPDATE Member_Table SET Session_ID = '#Variables.New_Session_ID#'
> WHERE Some_Condition = Met
></CFQUERY>
><!--- Set the session cookie (or session variable, take your pick) to
>identify them. --->
><CFCOOKIE NAME="session_id" VALUE="#Variables.New_Session_ID#">
>
>
>Using this method ensures that nobody will "spoof" the session cookie and
>crack into your member pages. If anyone finds a flaw in that method,
>please
>let me know (cause I use it on lots of sites).
>
>_______________________________________
>
>Justin Scott :: [Staff Developer]
>http://www.annex.com
>
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Structure your ColdFusion code with Fusebox. Get the official book at
>https://secure.houseoffusion.com
>
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------------------------------
Date: Fri, 17 Nov 2000 10:56:08 GMT
From: "Michael Thomas" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Real Life Math Computations....
Message-ID: <[EMAIL PROTECTED]>
There are a couple of built-in functions within Cold Fusion as well as other
languages like Javascript etc. etc. that Im curious about.
My question is does anyone have any real world experience with any or all of
the following functions and if so where would I use these:
Abs()
ACos()
ASin()
Atn() (or otherwise referred to as Atan)
Cos()
Log()
Pi()
Sgn()
Sin()
Tan()
Anyone have a real world example of these within a CF App??? And please dont
assume I have no math background or experience with these topics before
hand. I just dont have an idea of where I would need any of these in an
application of any sort.
Sincerely,
Mike T. Lakes
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------------------------------
Date: Fri, 17 Nov 2000 11:04:32 -0000
From: "Neil Clark" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Subject: RE: Real Life Math Computations....
Message-ID: <[EMAIL PROTECTED]>
Yep, I did an app that had some h-core animation in it and needed several of
these functions in JS and CF to calculate gravity, cusioning etc...
N
<! -----------------------------------
Neil Clark
Senior Web Applications Engineer
mcb digital
Tel. +44 (0)20 8941 3232
Tel. +44 (0)20 8408 8131 [Direct]
http://www.mcbdigital.com
----------------------------------->
------------------------------
Date: Fri, 17 Nov 2000 11:01:45 GMT
From: "Michael Thomas" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: PCodeDocumentNodeImp::validateSelf
Message-ID: <[EMAIL PROTECTED]>
As far as PCode goes, I have ran into my own lil scraps with that. It
happened within a custom tag that manages my links database. Restarting the
server (which is 4.5.1) did the trick, but on occasion that ugly error does
rare its head. I once had this task scheduled but for that very reason it no
longer is.
>From: David Cummins <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: CF-Talk <[EMAIL PROTECTED]>
>Subject: Re: PCodeDocumentNodeImp::validateSelf
>Date: Fri, 17 Nov 2000 11:45:55 +1300
>
>If it causes problems with them, then how are you supposed to use Unicode?
>That's what nvarchars are for...
>
>Paul Mone wrote:
> >
> > Yeah, I stay away from nvarchar, etc. for the same reason. What is the
> > benefit of using nvarchar over varchar (if any). i.e. why does it
>exist?
> >
> > -----Original Message-----
> > From: Michael Ross [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, November 15, 2000 12:14 PM
> > To: CF-Talk
> > Subject: Re: PCodeDocumentNodeImp::validateSelf
> >
> > I got the pcode error when my variables in SQL 7.0 were nvarchar, ntext
>and
> > such. Once I changed them(varchar, text) it worked.
> >
> > thanks
> >
> > >>> [EMAIL PROTECTED] 11/12/00 08:36PM >>>
> > On 11/13/00, David Cummins penned:
> > >I've seen it once before. Damned if I know - I think its an internal
>error.
> > >
> > >BTW, does anybody know how to find anything on the Allaire site? I hear
> > >references to a search that works properly, but I've never seen a
> > >description of
> > >a PCode error yet on their site.
> >
> > The only thing I found in the knowledge base basically said there's
> > no way to determine what they are. You can do some things that will
> > help you guess, and do some registry hacks in 4.51 that will cause CF
> > server to restart. But I'm using 4.01 since 4.51 is such crap. I just
> > restarted CF server and it went away. I'm using the same custom tag,
> > that the PCode message said caused the error, under multiple sites
> > and it only happened on the one, so it seems to be a random thing.
> > --
> >
> > Bud Schneehagen - Tropical Web Creations
> >
> > _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
> > ColdFusion Solutions / eCommerce Development
> > [EMAIL PROTECTED]
> > http://www.twcreations.com/
> > 954.721.3452
> >
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> >
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>--
>David Cummins
>Systems Developer
>Ubiquity Software Ltd.
>Ph: (09) 309-1921
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Structure your ColdFusion code with Fusebox. Get the official book at
>https://secure.houseoffusion.com
>
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------------------------------
Date: Fri, 17 Nov 2000 11:07:23 -0000
From: "Jason Lees (National Express)" <[EMAIL PROTECTED]>
To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
Subject: RE: Real Life Math Computations....
Message-ID:
<[EMAIL PROTECTED]>
I have used the ABS function, its Idea for displaying or totaling data
without worring about the sign.
EG to display the -2375 without a sign use #ABS(-2375)#.
Jason Lees
National Express
Email : [EMAIL PROTECTED]
-----Original Message-----
From: Michael Thomas [mailto:[EMAIL PROTECTED]]
Sent: 17 November 2000 10:56
To: CF-Talk
Subject: Real Life Math Computations....
There are a couple of built-in functions within Cold Fusion as well as other
languages like Javascript etc. etc. that Im curious about.
My question is does anyone have any real world experience with any or all of
the following functions and if so where would I use these:
Abs()
ACos()
ASin()
Atn() (or otherwise referred to as Atan)
Cos()
Log()
Pi()
Sgn()
Sin()
Tan()
Anyone have a real world example of these within a CF App??? And please dont
assume I have no math background or experience with these topics before
hand. I just dont have an idea of where I would need any of these in an
application of any sort.
Sincerely,
Mike T. Lakes
_________________________________________________________________________
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Share information about yourself, create your own public profile at
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Structure your ColdFusion code with Fusebox. Get the official book at
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------------------------------
Date: Fri, 17 Nov 2000 11:07:17 -0000
From: "DeVoil, Nick" <[EMAIL PROTECTED]>
To: "'[EMAIL PROTECTED]'" <[EMAIL PROTECTED]>
Subject: RE: Real Life Math Computations....
Message-ID: <FDB52A0429DFD31196FB0008C7D972D50116E8BD@OST_EXCH_USR5>
Well I've never used any of the other ones, but I've often used Abs()
in straightforward business applications.
One use that springs to mind is in securities trading, where if you've
bought say 5 million, your position is "long 5 million", and if you've
sold 5 million your position is "short 5 million". You might store these
in the database as 5000000 and -5000000 respectively but use Abs() when
displaying them as positive numbers in different columns.
Similarly in presenting financial accounts, you want to put a negative
number in brackets, not with a minus sign in front.
Nick
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------------------------------
Date: Fri, 17 Nov 2000 11:12:31 GMT
From: "Michael Thomas" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: RE: Real Life Math Computations....
Message-ID: <[EMAIL PROTECTED]>
Excellent post!!! This is exactly what I wanted to know. Between this & the
last post I can get a good grasp on Abs(), now for the other ones. Thanks.
^_^
>From: "DeVoil, Nick" <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: CF-Talk <[EMAIL PROTECTED]>
>Subject: RE: Real Life Math Computations....
>Date: Fri, 17 Nov 2000 11:07:17 -0000
>
>Well I've never used any of the other ones, but I've often used Abs()
>in straightforward business applications.
>
>One use that springs to mind is in securities trading, where if you've
>bought say 5 million, your position is "long 5 million", and if you've
>sold 5 million your position is "short 5 million". You might store these
>in the database as 5000000 and -5000000 respectively but use Abs() when
>displaying them as positive numbers in different columns.
>
>Similarly in presenting financial accounts, you want to put a negative
>number in brackets, not with a minus sign in front.
>
>Nick
>
>
>**********************************************************************
>Information in this email is confidential and may be privileged.
>It is intended for the addressee only. If you have received it in error,
>please notify the sender immediately and delete it from your system.
>You should not otherwise copy it, retransmit it or use or disclose its
>contents to anyone.
>Thank you for your co-operation.
>**********************************************************************
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Structure your ColdFusion code with Fusebox. Get the official book at
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>
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End of CF-Talk V1 #124
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