Laravel Select2 Search - php

Question

I use the select2 jquery plugin but I can't search for the data that I want to output.
I've been trying to search the name of a book in my database which should be available and with the company branch, I am currently in. I'm dealing with 2 tables for this.
books
book_type_id [1, 2]
status ['Available', 'Available']
book_type
id [1, 2] name ['Book 1', 'Book 2']
and
public function get_available_book_type(Request $request){
$employee = employee::where('id', Auth::user()->emp_id)->first();
$bt = books::with('book_type')->where('branch_id', $employee->branch_id)
->where('status', 'Available')->where('id', 'LIKE', '%'.$request->name.'%')->groupBy('book_type_id')->get();
$book_type = $bt->where('book_type.name', 'like', '%'.$request->name.'%');
$array = [];
foreach ($book_type as $key => $value){
$array[] = [
'id' => $value['id'],
'text' => $value['book_type']['name']
];
}
return json_encode(['results' => $array]);
}
This results in a "no results found". However, when I use
$book_type = $bt->where('book_type.name', $request->name);
It returns a data so I believe my initial query is correct and not empty but this is not what I want because I use this for searching and I don't expect my user to type the whole word to output it to select2.
The $book_type like query works if I don't use relationship.

Answer 1

You can use whereHas method to filter through the relations:
$book_type = books::with('book_type')
->where('branch_id', $employee->branch_id)
->where('status', 'Available')
->where('id', 'LIKE', '%'.$request->name.'%')
->whereHas('book_type', function($query) use ($request) {
$query->where('book_type.name', 'LIKE', '%'.$request->name.'%');
}
->groupBy('book_type_id')->get();