Call function from other component.

Hello experts.
I have in my application file two createobject:
<cfset objcategories = CreateObject("component", "admin.com.categories").init(dsn = "#request.dsn#")>
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess").init(dsn = "#request.dsn#")>

The first one is handling all the categories stuff and the second is creating and updating the htaccess file.
Now if i add or update my categories i want to recreate this htaccess file.

f.e.
delete categorie:
<cfset qrydeletecategory = objcategories.fdeletecategory(url.categoryid)>
cffunction:
<cffunction name="fdeletecategory" access="public" returntype="boolean">
      <cfargument name="categoryid" type="numeric" required="yes">
        <cfquery name = "DeleteCategory" datasource="#variables.dsn#">
        DELETE FROM categories
        WHERE CategoryID = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.categoryid#">
        </cfquery>
       <!--- CREATE HTACCESS AND SITEMAP ? --->
        <cfreturn true>
    </cffunction>
For creating the htaccess file:
<cfset qryhtaccess = objhtaccess.writehtaccess(request.rewriteruleformat)>

The question is.
Can i call the writehtaccess function inside the fdeletecategory function?
Is this the right way?
LVL 2
PanosAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Gurpreet Singh RandhawaCEOCommented:
yes you can do that, and you can do it this way:

<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess").init(dsn = "#request.dsn#")>

<cffunction name="fdeletecategory" access="public" returntype="boolean">
      <cfset var qryhtaccess = objhtaccess.writehtaccess(request.rewriteruleformat)>
      <cfargument name="categoryid" type="numeric" required="yes">
        <cfquery name = "DeleteCategory" datasource="#variables.dsn#">
        DELETE FROM categories
        WHERE CategoryID = <cfqueryparam cfsqltype="cf_sql_integer" value="#arguments.categoryid#">
        </cfquery>
       <!--- CREATE HTACCESS AND SITEMAP ? --->
        <cfreturn true>
    </cffunction>

now suppose you have a delete cfc and cfcomponent start and end and inside that you are doing all your functions, in the above case i showed, i have called another component of htaaccess, in a separate line.

you have two options here

1. use the code above as mine

2. if you do not want to create the objhtaaceess as i did, just use the extends attribute of cfcompoent tag and point it to the htaaccess cfc, this way it will inherit all the public methods of objhtaccess to your delete cfc and you ca use them anywhere like i did, but use inside the cffunction

Cheers
PanosAuthor Commented:
Hi myselfrandhawa.
case 1.
I'm creating the objhtaccess in the application file. Do i have to create it again in the delete cfc ?
case 2.
...just use the extends attribute of cfcompoent tag and point it to the htaaccess cfc...
please explain this in more detail .
PanosAuthor Commented:
hmmm.
I made some tests and realized that i have to place the createobject in the cfc.

I need only a clarification for case 2.
_agx_Commented:
Can i call the writehtaccess function inside the fdeletecategory function?

Yes. If it's stateless, there are 3 choices
1) recreate the createhtaccess object every time you call the delete function
     ie Use cfinvoke component="admin.com.createhtaccess"

2) create a new instance inside init() and store it in the variables scope. That means you'll have only 2 instances instead of 1 each time you call the delete function

      <cffunction name="init" ..>
               <cfargument name="dsn" ...>
               <cfset variables.dsn = arguments.dsn>
              <cfset variables.htaccess = createObject("admin.com.createhtaccess").init(arguments.dsn)>
      </cffunction>

3) pass the instance created inside your application file into init() as an argument. Then store it in the variables scope and use that object when you call delete. So you'll only have 1 instance in the entire application

<!--- create htaccess first --->
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess").init(dsn = request.dsn )>
<!--- pass it in as an argument --->
<cfset objcategories = CreateObject("component", "admin.com.categories").init(dsn = request.dsn, htaccess=objhtaccess)>

      <!--- init function of admin.com.categories --->
      <cffunction name="init" ..>
               <cfargument name="dsn" ...>
               <cfargument name="htaccess" ...>
               <cfset variables.dsn = arguments.dsn>
               <cfset variables.htaccess = arguments.htaccess>
      </cffunction>

       Use the variables scoped object inside your delete function

        <!--- CREATE HTACCESS AND SITEMAP ? --->
        <cfset variables.htaccess.callSomeFunctionHere(...)>

I need only a clarification for case 2.

Honestly I wouldn't use the extends hack unless the components are truly related, which they don't seem to be. If they're not, better to keep them separate and pass in the component using one of the methods above. Preferably #2 or #3

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
PanosAuthor Commented:
Thank you for your help.
regards
panos
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
ColdFusion Language

From novice to tech pro — start learning today.