Any chance that the query modusers has a field called URL? > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Sent: Tuesday, June 27, 2006 4:11 PM > To: CF-Talk > Subject: is URL a structure, or not? > > Hope the answer isn't already here, but I have looked at all the > "attempted to dereference a scalar variable" messages and haven't found a > solution. > > Moved from CF 4.5 to CF MX7. All of our code is written using the same > methodology, using <cfif isdefined("url.testvalue")> to use values passed > in the URL. This code doesn't work on CF MX7 now. Quick sample code: > > <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" > "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";> > <html xmlns="http://www.w3.org/1999/xhtml"; xml:lang="en" lang="en"> > <head> > </head> > <body> > > <a href="?testvalue=27">testvalue</a><br /> > > <cfquery datasource="General_Info" name="ModUsers"> > Select top 5 * from GeneralPosting > where ag_num = '303' > </cfquery> > > <cfoutput> > <cfif isdefined("url.testvalue")> > isdefined("url.testvalue")=#url.testvalue#<br /> > <cfelse> > isdefined returned false for (url.testvalue)<br /> > </cfif> > > <cfif StructKeyExists(url,"testvalue")> > StructKeyExists(url,"testvalue")=#url.testvalue#<br /> > <cfelse> > StructKeyExists(url,"testvalue") is false<br /> > </cfif> > </cfoutput> > > Begin cfoutput loop (cfoutput query="modusers"):<br /> > <cfoutput query="modusers"> > > <cfif isdefined("url.testvalue")> > testvalue=#url.testvalue#<br /> > <cfelse> > isdefined returned false for (url.testvalue)<br /> > </cfif> > </cfoutput> > > outside the loop:<br /> > > <cfoutput> > <cfif StructKeyExists(url,"testvalue")> > StructKeyExists(url,"testvalue")=#url.testvalue#<br /> > <cfelse> > StructKeyExists(url,"testvalue") is false<br /> > </cfif> > </cfoutput> > > Begin cfoutput loop (cfoutput query="modusers"):<br /> > <cfoutput query="modusers"> > > <cfif isdefined("url.testvalue")> > testvalue=#url.testvalue#<br /> > <cfelse> > isdefined returned false for (url.testvalue)<br /> > </cfif> > <cfif StructKeyExists(url,"testvalue")> > StructKeyExists(url,"testvalue")=#url.testvalue#<br /> > <cfelse> > StructKeyExists(url,"testvalue") is false<br /> > </cfif> > </cfoutput> > > outside the loop:<br /> > > <cfoutput> > <cfif StructKeyExists(url,"testvalue")> > StructKeyExists(url,"testvalue")=#url.testvalue#<br /> > <cfelse> > StructKeyExists(url,"testvalue") is false<br /> > </cfif> > </cfoutput> > > </body> > </html> > > Output with ?testvalue=27 : > > testvalue > isdefined("url.testvalue")=27 > StructKeyExists(url,"testvalue")=27 > Begin cfoutput loop (cfoutput query="modusers"): > isdefined returned false for (url.testvalue) > isdefined returned false for (url.testvalue) > isdefined returned false for (url.testvalue) > isdefined returned false for (url.testvalue) > isdefined returned false for (url.testvalue) > outside the loop: > StructKeyExists(url,"testvalue")=27 > Begin cfoutput loop (cfoutput query="modusers"): > isdefined returned false for (url.testvalue) > > You have attempted to dereference a scalar variable of type class > java.lang.String as a structure with members. > > Error occurred in line 57: > 55 : isdefined returned false for (url.testvalue)<br /> > 56 : </cfif> > 57 : <cfif StructKeyExists(url,"testvalue")> > 58 : StructKeyExists(url,"testvalue")=#url.testvalue#<br /> > 59 : <cfelse> > > > The docs for isdefined say: > > When working with scopes that ColdFusion exposes as structures, the > StructKeyExists function can sometimes replace this function. The > following lines are equivalent: > > if(isDefined("form.myVariable")) > if(structKeyExists(form,"myVariable")) > > so I added the structKeyExists test in addition to the isdefined, and get > the dreaded "You have attempted to dereference a scalar variable of type > class java.lang.String as a structure with members." error. > > At the top of the script, URL is obviously a structure, but within the > <cfoutput query="modusers"> loop something happens to turn it into a > string. > > What the heck is going on here? We really need a solution for this, as we > need to deploy a new server with CF MX7 on it and this appMUST work. > > > Bill Woodland, Programmer V > Texas Building and Procurement Commission > Phone: 512-936-2901 Fax: 512-236-6166 Email: > [EMAIL PROTECTED] > > >
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