I understand generally WHY this happens, but I'm curious if there is a better way to write the two references in code below so that if I RENAME the FIELD in SF, it updates the code?

{!REQUIRESCRIPT ("/soap/ajax/13.0/connection.js")} 

var formid = "{!Company_Form_Opp__c.Id}"; 
var userid = "{!$User.Id}"; 
var FormToUpdate = new sforce.SObject("Company_Form_Opp__c"); 

var padyear = {!YEAR(TODAY())}; 
var padmonth = {!MONTH(TODAY())}; 
if( padmonth.toString().length == 1 ) { padmonth = '0'+padmonth } 
var padday = {!DAY(TODAY())}; 
if( padday.toString().length == 1 ) { padday = '0'+padday } 

if( "{!Company_Form_Opp__c.RETURNFUNDS_Returned_By_Signature__c}" != '' ) { 
alert("Already signed!"); 

} else { 

FormToUpdate.set("Id", formid); 
FormToUpdate.set( "RETURNFUNDS_Returned_By_Signature__c" , userid); 
FormToUpdate.set( "RETURNFUNDS_Returned_By_Signature_Date__c" , padyear + '-' + padmonth + '-'+ padday ); 
var Result = sforce.connection.update([FormToUpdate]); 

if(Result[0].getBoolean("success")) { 
function redirect() { parent.frames.location.replace("/{!Company_Form_Opp__c.Id}"); } 
} else { 


The field reference at the "Already Signed!" IF updates itself. The two below in FORMTOUPDATE.SET() do not. What could I do to alter the FORMTOUPDATE references so that if I alter the Field name the code updates itself?

  • No "solution" for this at this time (2013-04-18). Leaving question OPEN for now per suggestion received on Meta site.
    – AMM
    Apr 18 '13 at 15:43

Edit: As at April 2013, $ObjectType is not evaluated within Custom Button context. The solution below should be considered a non-starter at this time :(

You could leverage the cached sObject describe result methods.

For example: {!$ObjectType.Object__c.fields.Field__c.Name} returns the field name.

Or in your case:

FormToUpdate.set('{!$ObjectType.Company_Form_Opp__c.fields.RETURNFUNDS_Returned_By_Signature__c.Name}', userid); 
FormToUpdate.set('{!$ObjectType.Company_Form_Opp__c.fields.RETURNFUNDS_Returned_By_Signature_Date__c.Name}', padyear + '-' + padmonth + '-'+ padday);

In Visualforce context, those references are coupled to the schema and will update accordingly.

  • 1
    Nice. I was thinking do a describe, but couldn't quite wrap my brain around how you could have it be coupled to the schema. Apr 12 '13 at 16:47
  • Sounds awesome. Will check it out shortly. Thanks.
    – AMM
    Apr 12 '13 at 18:01
  • Hmm. Error: Field Company_Form_Opp__c.fields.RETURNFUNDS_Returned_By_Signature_Date__c.Name does not exist. Check spelling (happens for both lines) (I did fix the first line where you had _Date in the var name)
    – AMM
    Apr 12 '13 at 18:09
  • @AMM can you confirm the object name works via {!$ObjectType.Company_Form_Opp__c.Name}? Apr 12 '13 at 18:38
  • 1
    Well crap :( I guess the $ObjectType global is completely absent from Custom Button contents then. Apr 12 '13 at 19:57

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