migration - laravel 5 primary key column not named id -


im trying migrate our current application on laravel-5.
app has quite big structure many tables, way less half of tables has primary key called id.
problem or can manualy specify want primary key called.
training videos doing, seems no.

sure, add $table->primary('field') database shema mentioned here: http://laravel.com/docs/5.0/schema#adding-indexes