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Webmaster Forum / ColdFusion / Advanced Techniques / September 2004Sesson Variables and Cookies
My site requires several session variables in order for it to function properly. I have just discovered that if the visitor has cookies turned off on their browser, the site is not working properley. I didnt think session variables required cookies to be enabled.. is this not true? Session management requires cookies, or you have to pass the CFID/CFTOKEN from page to page via URL . the values CFID and CFTOKEN are stored in a cookie, as OldCFer pointed out. Check out CF's URLSessionFormat() function to see a way for CF to auto-sense whether cookies are enabled or not, and deal with the situation accordingly. --Matt-- MSB Designs, Inc.... http://mysecretbase.com Three people can keep a secret if two of them are dead. - Benjamin Franklin >>>Check out CF's URLSessionFormat() function to see a way for CF to auto-sense whether cookies are enabled or not, and deal with the situation accordingly.<<< I am not familiar with that function, and cannot find it in the WACK index or in the list of CF functions. Can you tell me if it's usage is explained somewhere in the WACK, or perhaps I can find some information on it? Thanks Phil When all else fails RTFM :-) http://livedocs.macromedia.com/coldfusion/6.1/htmldocs/funca115.htm --Matt-- MSB Designs, Inc.... http://mysecretbase.com Moderation is for monks. -Anonymous Thanks for the link I looked at that and Im not sure that would help in this situation. Take a look at this query which relies on two session variables ----> <cfquery name="caterers" datasource="#datasource#" cachedwithin="#createTimeSpan(0,0,10,0)#"> select * from bg_companies a left outer join bg_advertisers b ON a.bg_company_ID=b.bg_company_ID where b.BusinessTypeID=#session.Businesstype.businesstype# and (b.regionID = '#session.region.regionID#' or b.regionID = '0') order by b.adlevel desc, a.company </cfquery> I have similar queries throughout the site which rely on these two sessions. So far it has been working smoothly until I got an email from someone saying they got this error ----> Element BUSINESSTYPE.BUSINESSTYPE is undefined in SESSION. So far, I have not been able to duplicate that error, nor has anybody else. I suspected that it may be a cookie issue, but now I have my doubts. I would appreciate if anyone can test it and see if their browser returns an error -----> www.banquetguide.com thanks Phil The site seemed to behave itself. the function would help in the sense that you would code your application to a format that always passes the key pair around . urlsessionformat() allows this info to be concealed if its not needed. You don't just use it on anchor links. Form posts as well., for example. A cflocation would have to have addtoken="yes", though. One way or another, if cookies are turned off session management will not work unless you pass the key pair from page to page. It works for YOU because you already have the cookie, since you've been to the site, so turning them off on your computer won't do anything unless you account for this and delete the cookie on your box, so you can simulate a truly new visitor. --Matt-- MSB Designs, Inc.... http://mysecretbase.com "Sculpture is what you bump into when you back up to look at a painting." - Ed Reinhart |
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