如何选择所有具有关系和 where 子句 Laravel MySQL 的记录

Question

I'm new to Laravel so I have a bit of a problem. I have tables 'Categories' and 'Products' in my DB. In my models I setup the relations like:

Product.php:

public function category() 
{
    return $this->belongsToMany(Category::class);
}

Category.php:

public function products() 
{
    return $this->hasMany(Product::class);
}

What I need now is that I want to select all of the Categories with their related Products. (User enters in search bar category name and gets list of Categories and when user selects Category I get all of the columns from Categories and ALSO Products related with this Category).

I have tried something like this:

public function findCategory(Request $request)
{
    return Category::with('products')
        ->where('name', 'like', '%' . $request->category_name . '%')
        ->limit(15)
        ->get();
}

ALSO:

public function findCategory(Request $request)
{
    return Category::where('name', 'like', '%' . $request->category_name . '%')
        ->products()
        ->limit(15)
        ->get();
}

But this doesn't seem to work and I ran out of ideas. Does anyone know if there is a way to do this? Any help would be much appreciated :)

Answer 1

it would be something like

public function findCategory(Request $request)
{

    $term = $request->category_name;

    return Category::with('products')->where(function($q) use($term) {
               $q->where('categories.name','like',"%$term%");
            })->paginate(15); //or use limit(15)


}

Answer 2

Your query is almost complete except that you didn't load related model. Therefore, you last example should be:

public function findCategory(Request $request)
{
    return Category::where('name', 'like', '%' . $request->category_name . '%')->
      ->with('products') //load related products
      ->limit(15)
      ->get();
}

Answer 3

public function getAllData()
{
    $data = tableName::where('Method','Delivery')->get();
    return response()->json($data, 200);
}

OR

$users = DB::table_Name('users')->select('name', 'email as user_email')->get();