Laravel - Way to use `->map()` in conjunction with `->firstOrFail()`?

Question

I'm using the ->map() function as demonstrated in this SO question , but now I need to update the scopes that use ->firstOrFail() instead of ->get() . Or if you cannot use ->map() with ->firstOrFail() , how can I edit some of the values on the fly when using a scope to fetch an individual record?

Answer 1

firstOrFail will return a single result - not a collection. You can't map over a single item - but if you want to do something with the returned result in a callback you can wrap it with the tap function instead.

tap(User::where('id', 1337)->firstOrFail(), function ($user) {
  //
});