[SalesForce] Redirecting to salesforce record type selection page from visualforce page

Ok, so I found the problem. It was in this line:

return new PageReference('/setup/ui/recordtypeselect.jsp?ent=Account&nooverride=1');

When I removed the override of the new button and tried to create a new Account, I saw this URL:

https://cs18.salesforce.com/setup/ui/recordtypeselect.jsp?ent=Account&retURL=%2F001%2Fo&save_new_url=%2F001%2Fe%3FretURL%3D%252F001%252Fo

Note this save_new_url parameter in there. After I added it to my PageReference everything works as it is supposed to(some profiles get a custom VF page and others go to standard record type selection and standard new layout):

return new PageReference('/setup/ui/recordtypeselect.jsp?ent=Account&nooverride=1&save_new_url=%2F001%2Fe');

And actually I don't even need this if anymore(that checks for RecordType parameter), so the code was reduced to this:

public PageReference redirect() {
    if (!shouldSkipRecordTypeSelection(u)) { // a simple if that checks user's profile and returns true if record type selection should be skipped
        return new PageReference('/setup/ui/recordtypeselect.jsp?ent=Account&nooverride=1&save_new_url=%2F001%2Fe');
    }
    return null;
}

EDIT

As sfdcweb mentioned is his comment, this will not work for custom objects by simple changing the ent property to MyCustomObject__c.

To make it work for custom objects too you will have to use the 15 character id of that custom object. To find it, go to:

• Setup
• Create
• Objects
• Select your object and check the URL in your browser(for example: https://cs87.salesforce.com/01I8E0000008XjE?setupid=CustomObjects)
• This is the id that we need(01I8E0000008XjE)

Then, just replace the ent=Account with ent=01I8E0000008XjE

I focused on getting the Cancel action from new Sobject page to return to a page other than from whence I started. Apologies for not using Cases

• Foo__c has record types
• a09/e is the key prefix for Foo__c
• ID is the ID of the record of the VF page where the outputLink exists - I used a standardController to test this; you could use something different here
• someNonFooId represents your intent - go to a page other than where you came if user clicks Cancel on the new Foo__c page after selecting a recordtype. Your VF page should know what to put here.

Code

<apex:outputLink value="{!URLFOR($Action.Foo__c.New, null, 
                                 ['retURL'='/' & ID, 
                                  'save_new_url' = '/a09/e?retURL=/' & someNonFooId],
                                  true)}" >
    Create New Foo
</apex:outputLink>

The trick was to tell the record type selection page to use a provided parameter save_new_url as otherwise, the recordtype selection page will generate a save_new_url for itself with a retURL that goes back to whence it came (the page with the outputlink). Note the save_new_url parameter value contains a parameter retURL - this is what gets passed to the New Foo__c page and is used by the new Foo__c page's OOB cancel button. I probably could have made the value of save_new_url a URLFOR itself but ran out of time.

Of course, URL hacking the record type selection process is subject to SFDC change