Validation rule to check against multiple rows - laravel

Question

When updating location names, I need validation to check against multiple rows in the table, not just a single id.
My table looks like this:
+----+--------------+-----------+----------+
| id | name | lat | lng |
+----+--------------+-----------+----------+
| 1 | Location One | 53.348333 | 0.348333 |
| 2 | Location One | 57.348222 | 0.348222 |
| 3 | Location One | 57.348111 | 0.545454 |
| 4 | Location Two | 55.348554 | 0.555444 |
| 5 | Location Two | 56.348667 | 0.348333 |
| 6 | Location Two | 56.348778 | 0.111111 |
+----+--------------+-----------+----------+
Creating new locations works as expected. But I'm not sure how to set the validation rule to exclude the current location I'm trying to update - it needs to check against the 'name' column.
I was hoping something like this may work - but it doesn't.
public function rules()
{
return [
'name' => 'required|max:255|unique:evac_routes,name,'.$this->name,
...
];
}
In my controller I'm using Route::where('name', $route->name)->update, which works, but I can't convert this logic to the validation rule:
public function update($id, UpdateRouteRequest $request)
{
$route = Route::findOrFail($id);
$updateRows = Route::where('name', $route->name)->update([
'name' => $request->name,
...
]);
return redirect('routes');
}

Answer 1

you need to create custome validation and pass array of ids that want to be checked such as:
public function multipelvalidation()
{
Validator::extend('multipel', function ($attribute, $value) {
//check validation here and return true or false
});
}
//... and use your rule in validation like below:
'name' => 'required|multipel|max:255|unique:evac_routes,name,'.$this->name,