MACROMEDIA COLDFUSION MX 61-DEVELOPING COLDFUSION MX, Develop Manual

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706 Chapter 31: Using XML and WDDX
Storing complex data in a string
The following simple example uses WDDX to store complex data, a data structure that contains
arrays as a string in a client variable. It uses the
cfdump
tag to display the contents of the structure
before serialization and after deserialization. It uses the
HTMLEditFormat
function in a
cfoutput
tag to display the contents of the client variable. The
HTMLEditFormat
function is required to
prevent the browser from trying to interpret (and throwing away) the XML tags in the variable.
<!--- Enable client state management --->
<cfapplication name="relatives" clientmanagement="Yes">
<!--- Build a complex data structure --->
<cfscript>
relatives = structNew();
relatives.father = "Bob";
relatives.mother = "Mary";
relatives.sisters = arrayNew(1);
arrayAppend(relatives.sisters, "Joan");
relatives.brothers = arrayNew(1);
arrayAppend(relatives.brothers, "Tom");
arrayAppend(relatives.brothers, "Jesse");
</cfscript>
A dump of the original relatives structure:<br>
<br>
<cfdump var="#relatives#"><br>
<br>
<!--- Convert data structure to string form and save it in the client scope --
->
<cfwddx action="cfml2wddx" input="#relatives#" output="Client.wddxRelatives">
The contents of the Client.wddxRelatives variable:<br>
<cfoutput>#HtmlEditFormat(Client.wddxRelatives)#</cfoutput><br>
<!--- Now read the data from client scope into a new structure --->
<cfwddx action="wddx2cfml" input="#Client.wddxRelatives#"
output="sameRelatives">
<br>
A dump of the sameRelatives structure generated from client.wddxRelatives<br>
<cfdump var="#sameRelatives#">