Question

I am trying to convert an application I support from application.cfm to application.cfc. I followed Ben Nadel’s ColdFusion Application.cfc Tutorial And Application.cfc Reference, but my pages cannot access any of the variables in the APPLICATION scope, without adding APPLICATION. to the variable. As a side note, this application uses 0 cfc’s currently.

here is my application.cfc.

<cfcomponent displayname="Application" hint="Handle the application" output="true">

    <cfset THIS.Name = "AAS" />
    <cfset THIS.ApplicationTimeout = CreateTimeSpan( 0, 60, 0 , 0) />
    <cfset THIS.SessionManagement = true />
    <cfset THIS.setClientCookies = false />
    <cfset THIS.versionNum = '1'>
    <cfset THIS.genericUserID = 'o005265'>
    <cfset THIS.genericPassword = 'zo005265'>

    <cffunction 
        name="OnApplicationStart" 
        hint="Fires when the application is first created." 
        access="public" 
        output="false" 
        returntype="boolean">

       <cfset APPLICATION.aasURL = 'http://127.0.0.1:8500/aaas'>
       <cfset APPLICATION.dsn = 've0_aaas'>
       <cfset APPLICATION.aas_system = 'development (studio)'>

    <cfreturn true />
  </cffunction>
</cfcomponent>

Basically I just copied what was in the application.cfm page, and figured it would work the same. I am guessing that I have to invoke this somewhere? That is the only thing that I can think of. Any help would be great.

— EDIT —

I have added the OnRequest and OnApplicationStart methods after @EvikJames answer

<cffunction name="OnApplicationStart" access="public" returntype="boolean" output="false" hint="Fires when the application is first created.">
    <!--- Return out. --->
    <cfset APPLICATION.aasURL = 'http://127.0.0.1:8500/aaas'>
    <cfset APPLICATION.datasource = 've0_aaas'>
    <cfset APPLICATION.aas_system = 'development (studio)'>
    <cfreturn true />
</cffunction>


<cffunction name="OnRequest" access="public" returntype="void" output="true" hint="Fires after pre page processing is complete.">
    <!--- Define arguments. --->
    <cfargument name="TargetPage" type="string" required="true">
    <!--- Include the requested page. --->
    <cfinclude template="#ARGUMENTS.TargetPage#" />

    <cfset VARIABLES.dsn = APPLICATION.dsn>
    <cfset VARIABLES.aasURL = APPLICATION.aasURL>
    <cfset VARIABLES.aas_system = APPLICATION.aas_system>
    <!--- Return out. --->
    <cfreturn />
</cffunction>

Answer 1

In your onApplication start method, do this:

<cfset APPLICATION.datasource = 'MyDSN'>

In your onRequest method, do this:

<cfset VARIABLES.DSN = APPLICATION.datasource>

Then, this query will work:

<cfquery datasource="#dsn#">
// sql
</cfquery>

I should add that when you are fully upgraded, you can remove all of the code above just set the default datasource:

<cfset THIS.datasource = 'MyDSN'>