Not sure it's how I'd write a rating widget, but here's a fairly direct
translation.
(Untested, so may contain stupid bugs.)
<cffunction name="in_range" returntype="Numeric" output="false">
<cfargument name="Val" type="Numeric" />
<cfargument name="From" type="Numeric" default="0" />
<cfargument name="To" type="Numeric" default="100" />
<cfreturn min( Arguments.To , max( Arguments.From , Arguments.Val ) ) />
</cffunction>
<cffunction name="get_dbfile" returntype="string" output="false">
<!--- I *think* __FILE__ from original is a global constant... not
really sure? I've plonked it into Application --->
<cfreturn rereplace( Application.File , '\.php$' , '.dat' ) />
</cffunction>
<cffunction name="get_votes" returntype="Struct" output="false">
<cfset var dbfile = get_dbfile() />
<cfif FileExists(dbfile)>
<cfreturn deserializeJson( FileRead(dbfile) )/>
<cfelse>
<cfreturn { votes : 0 , sum : 0 , avg : 0 } />
</cfif>
</cffunction>
<cffunction name="save_vote" returntype="Struct" output="false">
<cfargument name="Vote" type="Numeric" />
<cfscript>
var db = get_votes() ;
db.votes++ ;
db.sum += Arguments.Vote ;
db.avg = round( 100 * db.sum / db.votes ) / 100 ;
FileWrite( get_dbfile() , serializeJson( db ) ) ;
</cfscript>
<cfreturn db />
</cffunction>
That needs CF8 or Railo 3.
If you've got Railo, you can do serialize/deserialize without using JSON, and
also use the terniary if operator (as the PHP version does).
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