http://www.escapekeys.com/blog A ColdFusion and Web Development Blog by Tom de Manincor en-us Wed, 08 Sep 2010 13:55:19 -0400 Tue, 15 Apr 2008 20:40:00 -0400 BlogCFC http://blogs.law.harvard.edu/tech/rss blog@escapekeys.com blog@escapekeys.com http://www.escapekeys.com/blog/2008/4/15/UDF--flattenStruct--builded-nested-structs-into-single-struct I whipped this up to contribute to Rolando's <a href="http://environmentConfig.riaforge.org">environmentConfig</a> project. ColdSpring doesn't like being passed complex values, and it's not that big of a deal unless you are parsing settings from a 3rd party XML, that builds them into a nested struct. So we came up with this to build all the nested structs into a single struct. By default it adds the parent struct's key as a prefix. This is to assure no values are overwritten. I didn't see a UDF on CFLib for it, so I figured I'd submit and post here in case it can help anyone else out. <code> <cffunction name="flattenStruct" access="public" output="false" returntype="struct"> <cfargument name="stObject" required="true" type="struct" /> <cfargument name="delimiter" required="false" type="string" default="." /> <cfargument name="prefix" required="false" type="string" default="" /> <cfargument name="stResult" required="false" type="struct" default="#structNew()#" /> <cfargument name="addPrefix" required="false" type="boolean" default="true" /> <cfset var sKey = '' /> <cfloop collection="#arguments.stObject#" item="sKey"> <cfif isSimpleValue(arguments.stObject[sKey])> <cfif arguments.addPrefix and len(arguments.prefix)> <cfset arguments.stResult[arguments.prefix & arguments.delimiter & sKey] = arguments.stObject[sKey] /> <cfelse> <cfset arguments.stResult[sKey] = arguments.stObject[sKey] /> </cfif> <cfelseif isStruct(arguments.stObject[sKey])> <cfset flattenStruct(arguments.stObject[sKey],arguments.delimiter,sKey,arguments.stResult) /> </cfif> </cfloop> <cfreturn arguments /> </cffunction> </code> ColdFusion UDFs Coldspring Tue, 15 Apr 2008 20:40:00 -0400 http://www.escapekeys.com/blog/2008/4/15/UDF--flattenStruct--builded-nested-structs-into-single-struct