why is it not possible to call two methods of the same component sequentially in Coldfusion?

Question

So, I have allmost spend the night chasing a bug.... found it and no idea what is wrong.

I have script in Coldfusion which sends two emails. Both mails are in a mailer script which I'm calling with cfinvoke like so:

<cfinvoke component="form_mailer_basket" method="msg_order_seller"> 
... parameters
</cfinvoke>

<cfinvoke component="form_mailer_basket" method="msg_order_retailer">
... parameters
</cfinvoke>

Both mail parameters are all ok, but the 2nd mailer throws an error:

mailer orders 
************************************************************************************ 

type: Application 
************************************************************************************ 

message: Could not find the ColdFusion Component or Interface form_mailer_basket. 
************************************************************************************ 

detail: Ensure that the name is correct and that the component or interface exists. 
************************************************************************************ 

Question:
Can anyone tell me why the 2nd mail cannot find the component when the first script 5 lines above can?

Thanks!

EDIT:
Here is my code for calling both methods:

<cfif new_mail.recordcount GT 0>
    <cfloop query="new_mail">
        <cfset variables.newMail = new_mail.email_bestelleingang>
            <cfinvoke component="form_mailer_basket" method="msg_order_seller"> 
                <cfinvokeargument name="delDate" value="#variables.liefdatum_mail#"/>
                <cfinvokeargument name="delMsg" value="#variables.bestell_text_mail#"/>
                <cfinvokeargument name="delOrd" value="#LOCAL.Basket.bestelltyp#"/>
                <cfinvokeargument name="mailto" value="#variables.newMail#"/>
                <cfinvokeargument name="client" value="#LOCAL.Basket.re_firma#"/>
                <cfinvokeargument name="rebate" value="#variables.kopf_rabatt#"/>
                <cfinvokeargument name="sellerIln" value="#variables.iln_verkaeuferNEU#"/>
                <cfinvokeargument name="ordNo" value="#variables.bestellnummer_neu#"/>
            </cfinvoke> 
    </cfloop>
</cfif>

...

 <cfloop query="active_check">
      <cfif active_check.freigeschaltet NEQ "1" AND active_check.freigeschaltet NEQ "0">
           <cfinvoke component="form_mailer_basket" method="msg_order_retailer">
                <cfinvokeargument name="delDate" value="#variables.liefdatum_mail#" />
                <cfinvokeargument name="delOrd" value="#LOCAL.Basket.bestelltyp#" />
                <cfinvokeargument name="mailto" value="#variables.cusMail#" />
                <cfinvokeargument name="client" value="#order_recipients.firma#" />
                <cfinvokeargument name="rebate" value="#variables.kopf_rabatt#" />
                <cfinvokeargument name="sellerIln" value="#variables.iln_verkaeuferNEU#" />
                <cfinvokeargument name="ordNo" value="#variables.bestellnummer_neu#" />
                <cfinvokeargument name="total" value="#variables.gesamtsumme#" />
                <cfinvokeargument name="menge" value="#variables.gesamtmenge#" />
                <cfinvokeargument name="curr" value="#variables.waehrung#" />
                <cfinvokeargument name="agentF" value="#variables.agentFirma#" />
               <cfinvokeargument name="agentN" value="#variables.agentName#" />
            </cfinvoke>
         </cfif>
    </cfloop>

First one works, second one doesn't. Method names are correct, all parameters are ok (I know I should use an argumentsColletion...), so I'm clueless and need to take a nap. Checking back later!

And the cfc:

<cfcomponent output="false" hint="basket mailing cfc - sends out all basket related mail messages">

    <!--- LOAD LANGUAGES --->
    <cfinclude template="../templates/tmp_lang.cfm">

    <!--- INIT --->
    <cffunction name="Init" access="public" returntype="any" output="false" hint="Initialize">

        <!--- nothing here for now --->

        <cfreturn true />
    </cffunction>

    ... msgs like this:

    <!--- NEW ORDER SELLER --->
    <cffunction name="msg_order_seller" access="public" output="false" hint="msg for new orders"> 
        <cfargument name="delDate" type="date" required="true" hint="delivery date" />
        <cfargument name="delMsg" type="string" required="true" hint="text message by retailer" />
        <cfargument name="delOrd" type="string" required="true" hint="order type pre/asap" />
        <cfargument name="mailto" type="string" required="true" hint="email adress" />
        <cfargument name="client" type="string" required="true" hint="buyer" />
        <cfargument name="rebate" type="string" required="true" hint="rebate 1/0" />
        <cfargument name="sellerIln" type="string" required="true" hint="seller ILN" />
        <cfargument name="ordNo" type="string" required="true" hint="order number" />

        <cfprocessingdirective suppresswhitespace="No">
            <cfmail
                    TO="#mailto#"
                    FROM="automailer@..."
                    SERVER="mail.bbb.de"
                    USERNAME="ddd"
                    PASSWORD="123456"
                    SUBJECT="#tx_automailer_order_new# - #client#">
#tx_automailer_default_anrede#

#tx_automailer_order_info#

#tx_automailer_order_type#: #ordertype# #rebateTxt#
#tx_automailer_order_del#: #deliveryDate#

#tx_automailer_order_no#:     #ordNo#
#tx_automailer_order_date#:      #DateFormat(now(),"dd.Mm.yyyy")#

#tx_kaeufer#:            #client#
#tx_automailer_order_msg#:
#delMsg#

#tx_automailer_order_iln#:  #sellerIln#

#tx_automailer_default_gruss#
#tx_automailer_default_team#
-------------
#tx_automailer_default_disclaimer#
                    </cfmail>
              </cfprocessingdirective>      
          <cfreturn />
    </cffunction>  
    ...

 </cfcomponent>     

Answer 1

1. Using cfinclude in cfc is NOT good practice, though admittedly I had to do it too on occasions.
2. Your error Could not find the ColdFusion Component or Interface form_mailer_basket seems to imply that something happens to the component itself - I suspect it has something to do with your return statement in Init() method.
3. In earlier versions of CF (I think around version 6/7 maybe 8) you could overwrite your function by setting identically named variable inside your cfc. You did not mention the CF version that you are running.

Answer 2

If you just want to solve your problem instead of trying to figure out what is causing it, I have a suggestion. Instead of using the cfinvoke tag for the same component many times, use either cfobject or CreateObject() to make just one instance of it. Then call the methods directly.

Even if you do get your current approach to work, it will be slower than my suggestion. cfinvoke creates an object each time you call it and that takes processing time.

Answer 3

Are you sure that both methods exist and are public?