How can i use laravel 4 lock For Update

Question

Now i'm using Laravel 4 for website development , when i'll edit record by this query

$cc=DB::table('customers')->where('transaction_id', '=', $_GET['edit'])->lockForUpdate()->get();

But when i login by another session from another browser the user can show record as i do query on page that select for update Now i want every user lock record that edit it any help and thank you .

Answer 1

Lock for update will only work inside a transaction. Something like the following should work:

DB::transaction(function() {
    $cc = DB::table('customers')->where('transaction_id', '=', $_GET['edit'])->lockForUpdate()->get();
    ...
});