What is the cleanest way to evaluate both fields on query builder - laravel

Question

There are first_name, mid_name and last_name fields in my model. And I am receiving 2 fields (name, last_name) with POST request. I am sure last_name will be there for sure, but I want to be able to compare first_name or mid_name with name.
The issue here is, I don't want to repeat myself but I couldn't figure out a cleaner way.
$query = User::where('last_name', $request->last_name);
if ($request->name) {
$query = $query->where('first_name', $request->name);
}
$result = $query->get();
If I chain, ->orWhere('mid_name', $request->name) inside the if statement, I will end up repeating myself for rechecking for last_name.
I tried dividing this line:
$query = User::where('last_name', $request->last_name);
to this but it doesn't find even the last_name (probably because I am accessing the class?):
$query = User::class;
$lastnameQuery = $query->where('last_name', $request->last_name);
How would you approach a scenario like this to achieve it in a clean way?

Answer 1

Using a orWhere it could be done easily, for example:
$query = User::where('last_name', $request->last_name);
if ($request->name) {
$query = $query->where(function($query) use ($request) {
$query->where('first_name', $request->name)
->orWhere('mid_name', $request->name);
});
}
$result = $query->get();
The closure is required here to separately apply the orWhere only on the first_name and mid_name, so the pseudo query would be something like this:
WHERE last_name = 'doe' AND (first_name = 'john' OR mid_name = 'john')