Question

How does ColdFusion handle URLVariables sent from Flex

Asked by: coconutelegraph

I'm sending the userID from Flex to ColdFusion as a URLVariable when the user uploads a file. The only problem is I don't now how to get ColdFusion to handle the URLVariable. What do I need to do to create a variable in CF that references the URLVariable? Thanks.

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Asked On
2009-09-16 at 18:25:40ID24738483
Topics

Cold Fusion Markup Language

,

ColdFusion Application Server

,

Adobe Flex

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: SidFishesPosted on 2009-09-16 at 20:48:53ID: 25352685

cf sees the url scope and can reference it by simply

<a href="somesite.com/page.cfm?userid=bar">


<cfset foo = url.userid>

 

by: _agx_Posted on 2009-09-16 at 23:30:12ID: 25353273

coconutelegraph,

(I don't know how familiar you are with ColdFusion...) But to expand on what SidFishes' said, anytime url variables are passed to ColdFusion, CF automatically decodes the values and makes the variables available in a special system structure named URL.  So you can access any url variable through the URL scope: either using dot notation or array notation:  url["variablename"]


<!--- from SidFishes' example ---->
<a href="somesite.com/page.cfm?userid=bar">


<!--- Show all variables in the URL scope --->
<cfdump var="#URL#" label="All URL Variables">

<!--- Just for debugging ---->
<cfif NOT structKeyExists(URL, "userID")>
     DEBUGGING:  (Sorry. The variable URL.userID isn't defined yet)
    <cfabort>
</cfif>

<!--- Show value ---->
<cfoutput>
    URL.userID (using dot notation) = #url.userId#</br>
    #url["userId"] (using array notation) = #url["userId"]#</br>
</cfoutput>

 

by: coconutelegraphPosted on 2009-09-17 at 03:28:38ID: 31629801

Thanks for your prompt response. I am new to CF. The more time I spend with it I am continuously amazed at how simple, yet powerful, this tool is. Thanks.

 

by: _agx_Posted on 2009-09-17 at 09:07:30ID: 25357729

Glad we could help.  

Correction for the archives:  (removed extra character)

     #url["userId"] (using array notation) = #url["userId"]#</br>

.. should be:

      url["userId"] (using array notation) = #url["userId"]#</br>

20120131-EE-VQP-002

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