How to fetch record id using Salesforce instance URL address

Question

I have VF page and placed that in home side bar component page and I am capturing the Salesforce instance URL from visual force using custom controller.

public String getReferer()
{ 
    BrowserURL = ApexPages.currentPage().getHeaders().get('referer'); 
    return browserURL;
} 

Now I want to fetch recorded id using Salesforce instance URL in VF page.

How can I get record id using that URL. Eg: I am getting Salesforce browser URL like: https://ap1.salesforce.com/0019000000GJMHG using this URL How can I get Salesforce record id through controller and display the record id in VF page. Like : Record Id: 0019000000GJMHG Can anyone please help me to overcome this issue?

Answer 1

I guess you can use the string methods now to pull the ID.

BrowserURL=BrowserURL.right(15);//Pull from right the 15 digit Id

If your org is not update to winter 13 then you can use String.Split('/') and get the last array element value .

Answer 2

I've done this in javascript in the past and it boiled down to two regular expressions:

for the / URL format:

/\.com\/\w{15}|\.com\/\w{18}/

and for the ?id= format:

/id\=\w{15}|id\=\w{18}/

It's not foolproof - any VF page can use custom parameter names, but it covers all standard UI pages I'm aware of any any visualforce that uses a StandardController.

Answer 3

Not sure if this is completely foolproof, but seems to be working for me

Example:

BrowserURL = ApexPages.currentPage().getHeaders().get('referer').Split('/')[3].left(15);