Making a contact form restful with Mach-II / Coldfusion

mach-ii.xml

<mach-ii version="1.5">
	<event-filters>
		<event-filter name="RESTfulFilter" type="model.RESTfulFilter" />
	</event-filters>
	
	<event-handlers>
		<event-handler event="contact">
			<filter name="RESTfulFilter">
				<parameter name="get" value="contact.form" /> 
				<parameter name="post" value="contact.action" />
			</filter>
		</event-handler>
		<event-handler event="contact.form" access="private">
			<event-arg name="contentPieceMappingName" value="contact" />
			<notify listener="ContentListener" method="getContentPiece" />
			<event-arg name="theme" value="white" />
			<notify listener="ReCaptchaListener" method="getReCaptcha" resultArg="reCaptcha" />
			<view-page name="contact" contentArg="content" />
			<execute subroutine="layout.default" />
		</event-handler>
		<event-handler event="contact.action" access="private">
			<notify listener="ReCaptchaListener" method="eventArgValidation" resultArg="reCaptchaValid" />
			<event-bean name="Contact" type="model.Contact" />
			<filter name="FormValidator">
				<parameter name="formObjectName" value="Contact" /> 
				<parameter name="invalidEvent" value="contact.form" />
			</filter>
			<notify listener="ContactListener" method="addContact" />
			<event-arg name="contactsent" value="1" />
			<redirect event="contact" args="contactsent" />
		</event-handler>
	</event-handlers>
</mach-ii>

RESTfulFilter.cfc

<cfcomponent display="RESTfulFilter" extends="MachII.framework.EventFilter">
	<cffunction name="filterEvent" returnType="boolean">
		<cfargument name="event" type="MachII.framework.Event" required="true" />
		<cfargument name="eventContext" type="MachII.framework.EventContext" required="true" />
		<cfargument name="paramArgs" type="struct" required="false" default="#StructNew()#" />
		
		<cfset var requestMethod = cgi.REQUEST_METHOD />
		<cfset var _method = arguments.event.getArg("_method", requestMethod) />
		<cfset var restMethod = "" />
		
		<cfif LCase(requestMethod) eq "get">
			<cfset restMethod = "get" />
		<cfelseif LCase(_method) eq "put">
			<cfset restMethod = "put" />
		<cfelseif LCase(_method) eq "delete">
			<cfset restMethod = "delete" />
		<cfelse>
			<cfset restMethod = "post" />
		</cfif>
		
		<cfif StructKeyExists(paramArgs, restMethod)>
			<cfset announceEvent(paramArgs[restMethod], arguments.event.getArgs()) />
		<cfelse>
			<cfthrow message="No event specified for REST method '#restMethod#'" />
		</cfif>
		
		<cfreturn false />
	</cffunction>
</cfcomponent>