How to search relationship in laravel? - php

Question

I have two models which are related. I am trying to do a search in orders and only display the actual search results instead of ALL orders of the category and user in which the order was found.
public function up()
{
Schema::create('orders', function (Blueprint $table) {
$table->id();
$table->foreignId('user_id')->constrained()->cascadeOnDelete();
$table->foreignId('category_id')->constrained()->cascadeOnDelete();
$table->foreignId('report_id')->constrained()->cascadeOnDelete();
$table->string('time');
$table->string('date');
$table->integer('issue_number');
$table->boolean('status');
$table->text('description')->nullable();
$table->timestamps();
});
}
So, what I WANT to achieve is the following. What I WANT to be displayed is:
OrderController.php
public function index()
{
$keyword = request('search') ?? null;
$orders = Order::query()->whereIn('user_id', $user->id)->whereIn('category_id', $category->id)
->orWhere(function ($query) use ($keyword) {
$query->when($keyword, function ($query) use ($keyword) {
$query->where('first_name' , 'LIKE' , "%{$keyword}%");
});
})->latest()->paginate(25);
return view('Admin.orders.index', compact('orders'));
}
Order.php
public function user()
{
return $this->belongsTo(User::class);
}
public function report()
{
return $this->belongsTo(Report::class);
}
public function category()
{
return $this->belongsTo(Category::class);
}

Answer 1

If I got you right you want to apply filter to your related table. For that kind of operation you can use whereHas or whereRelation methods of eloquent.
$posts = Post::whereHas('comments', function (Builder $query) {
$query->where('content', 'like', 'code%');
})->get();
or
$posts = Post::whereRelation(
'comments', 'created_at', '>=', now()->subHour()
)->get();
comments is related column.
For more information check Querying Relationship Existence.