URL redirection

I want ask question about codeigniter secure redirection. Let's we have user and this user have multiple recipients. And also table with them(Codeignitier framework). If i want to edit some of user's recipient i click to edit button. Then this action redirect user to edit recipient page. 
In my codeigniter i'm using:
public fuction editRecipient($recipien_id) { ... }
If i organize my function in this way, users can access to editing another recipients(by Url: htttp://example.com/editRecipient/123/) 
So, what would be the solution?
Help me please.