The code is too long so I am giving brief summary of it:

I have a class as follows:

public class Myclass
{
public ApexPages.StandardController controller;
//this class is extension of My original MyAttach page and its replica MyAttach_V2.
public Myclass(ApexPages.StandardController c) 
{
   controller = c;
}
//following method is used to insert attachment to object
public void saveAttach()
{
    System.debug('Inside saveAttach');
    PageReference pdfPage = Page.MyAttach_V2;
    //putting id of custom object in parm id so that I can read it to fetch records
    pdfPage.getParameters().put('id',q.id);//q is variable of CustomObj__c which fetches records.
    Blob pdfBlob ;//= pdfPage.getContent();
    if(!Test.isRunningTest())
    {
    pdfBlob = pdfPage.getContent();
    Attachment a = new Attachment(parentId = q.id, name=q.id + '.pdf', body = pdfBlob);
    insert a;
    }
    else
    { 
     pdfBlob = Blob.valueOf('Unit Test Attachment Body');
    }
 }

}

Apex Page: MyAttach

<apex:page standardController="CustomObj__c" extension="MyClass" action="{!saveAttach}">

//here I generate PDF data with the help of both standard controller and its extension

</apex:page>

Apex Page:MyAttach_V2

<apex:page standardController="CustomObj__c" extension="MyClass" >

//same content as MyAttach page

</apex:page>



Now when I click Generate PDF, I get two attachments save in the Attachments section.

The button Generate PDF is custom button of CustomObj__c and has VFP MyAttach in it.

I have search for method saveAttach in my env. I found only two occurrences one in class and other one in MyAttach page.

Let me know if I am missing something.

Thank you!

Regards,

Lakshman