VF Page - 'New' Button Override

 

* ‘New’ Button Override to Assign VisualForce Page to Specific Record Type Using Native Apex Code

* Using Standard button to override edit/new pages.

public with sharing class caseRedirect {

private ApexPages.StandardController controller;
public String retURL {get; set;}
public String saveNewURL {get; set;}
public String rType {get; set;}
public String cancelURL {get; set;}
public String ent {get; set;}
public String confirmationToken {get; set;}
public String accountID {get; set;}
public String contactID {get; set;}

public caseRedirect(ApexPages.StandardController controller) {

  this.controller = controller;

	retURL = ApexPages.currentPage().getParameters().get('retURL');
	rType = ApexPages.currentPage().getParameters().get('RecordType');
	cancelURL = ApexPages.currentPage().getParameters().get('cancelURL');
	ent = ApexPages.currentPage().getParameters().get('ent');
	confirmationToken = ApexPages.currentPage().getParameters().get('_CONFIRMATIONTOKEN');
	saveNewURL = ApexPages.currentPage().getParameters().get('save_new_url');
	accountID = ApexPages.currentPage().getParameters().get('def_account_id');
	contactID = ApexPages.currentPage().getParameters().get('def_contact_id');

}

public PageReference redirect() {

	PageReference returnURL;

	// Redirect if Record Type corresponds to custom VisualForce page

	IF(rType == 'xxxxxxxxxxxxxxx') {

		returnURL = new PageReference('/apex/insert_VF_Page_Here');

	}ELSE {
		returnURL = new PageReference('/500/e');
	}
	returnURL.getParameters().put('retURL', retURL);
	returnURL.getParameters().put('RecordType', rType);
	returnURL.getParameters().put('cancelURL', cancelURL);
	returnURL.getParameters().put('ent', ent);
	returnURL.getParameters().put('_CONFIRMATIONTOKEN', confirmationToken);
	returnURL.getParameters().put('save_new_url', saveNewURL);
	returnURL.getParameters().put('nooverride', '1');

	IF (accountID != null){
		returnURL.getParameters().put('def_account_id', accountID);
	}
	IF (contactID != null){
		returnURL.getParameters().put('def_contact_id', contactID);
	}
	returnURL.setRedirect(true);
	return returnURL;
    }
}

<apex:page standardController="Case" extensions="caseRedirect" tabStyle="Case" showheader="true" action="{!redirect}" />