DI/1 constants confusion

[Geoff Parkhurst]

Hello

I'm having difficulty with the constants struct passed to di1 - not
sure if I've misunderstood what it's for...

Given this CFC:

<cfcomponent>
<cffunction name="init" access="public" output="false" returntype="test">
<cfargument name="foo" type="string" required="true">
<cfset variables.foo = arguments.foo />
<cfreturn this />
</cffunction>

<cffunction name="getFoo" access="public" output="false" returntype="string">
<cfreturn structkeyexists(variables,"foo") ? variables.foo : "UNDEFINED">
</cffunction>
</cfcomponent>

I can invoke it and call the init method - all good:

<cfset a=createobject("component","test").init(foo="bar")>
<cfoutput>#a.getFoo()#</cfoutput>

But doing the same through DI1, I get "bean not found: foo; while
resolving constructor arguments for test"

I'm using this code:

<cfset bf = CreateObject("component", "ioc").init(folders = ".",
constants={foo="bar"}) />
<cfdump var="#bf.getBean("test")#">

It seems DI1 thinks the "foo" argument should be a bean. I was kind of
hoping it could be a big 'ol name-value struct (which at the moment,
we pull from a .json file).

Do I need to wrap that name / value struct into a config.cfc bean with
its own getters / setters?

(I've seen something to that effect in earlier posts to this group but
couldn't work out from that thread if it's the 'right' thing to do -
sounded more like a "what _I_ did was ...." type reply!)

Many thanks

Geoff

[David Schaller]

Geoff,

In my case I am passing a 'config' struct which contains the 'constants' struct.

Perhaps like this:

<cfset bf = CreateObject("component", "ioc").init(folders = ".", config = { constants={foo="bar"} }) /> 

David

[Geoff Parkhurst]

d'oh. Thanks David - good spot. Works a treat.

[Gregory Thrush]

Hello,

The ability to pass constant values when setting up the bean factory is nice. When I declare my database credentials as hard coded constants that then get passed as arguments to the init() of my datasource cfc, it works like a charm. 

 function setupApplication() {
    setupEnvironment(getEnvironment());
    // writeDump(var=variables.framework.dsn, abort=false label= "variables.framework.dsn");
    var bf = new framework.ioc( folders ="model", config = {constants = {dsn = "theDsn", userName="theUserName", dbpassword="thePassword"} });
        setBeanFactory( bf );
    }

As you can see from the above code, I also want to use FW1's Environment Control to give me the correct credentials for a given application environment . I'd tried to set the constants like this:

var bf = new framework.ioc( folders ="model", config = {constants = {dsn = variables.framework.dsn, userName= variables.framework.userName, dbpassword= variables.framework.dbpassword} });

CF doesn't like this.  It throws the error  'Element FRAMEWORK.DSN is undefined in VARIABLES'.  When I dump the variables.framework struct I see that variables.framework.dsn (and the other two db credential variables) exist.  Is it possible to set constants within framework.ioc() in this manner?

Thanks,
Greg

[Sean Corfield]

First off: you don't need to call setupEnvironment() - FW/1 does that for you.

Second: show us your variables.framework structure in Application.cfc.

Third: show us your getEnvironment() function (in Application.cfc).

Fourth: if you have defined your own setupEnvironment() function (in Application.cfc), show us that.

As a general guide, you get much better help if you provide all the relevant information when you post a question... which should generally include: which CFML engine are you using, which version, which O/S, which exact version of FW/1 are you using etc.

Sean

[Gregory Thrush]

My apologies for not including enough code and information. Here's it is:

in application.cfc

variables.framework = {
unhandledPaths = "/mxunit",
suppressImplicitService = true,
suppressServiceQueue = true
};

   

variables.framework.environments = {
      dev = { reloadApplicationOnEveryRequest = true, trace = true, dsn="theDsn",  username = "theUserName",  dbpassword="thePassword" },
      dev_qa = { reloadApplicationOnEveryRequest = false, trace = false, dsn="theDsn",  username = "theUserName",  dbpassword="thePassword"  },
      prod = { reloadApplicationOnEveryRequest = false, trace = false, dsn="theDsn",  username = "theUserName",  dbpassword="thePassword" }
};

  

function setupApplication() {

getEnvironment();
// writeDump(var=variables.framework, abort=false label= "variables.framework");

var bf = new framework.ioc( folders ="model", config = {constants = {dsn = variables.framework.dsn, userName= variables.framework.userName, dbpassword= variables.framework.dbpassword} });

setBeanFactory( bf );

}

public function getEnvironment() {

if ( findNoCase( "web", CGI.SERVER_NAME ) ) return "prod";
if ( findNoCase( "dev", CGI.SERVER_NAME ) ) return "dev";
else return "dev_qa";

}

I used FW1's setupEnvironment(). 

I'm running FW/1 v 2.5RC1, ACF 9.x.


Regards,
Greg