Laravel 雄辩的“with”和“where”多表

Question

I've 3 tables on my project:

1. Mall
2. Shop
3. Product

I've a page to search for products in the whole database. I need an option where they can search the product by the mall name. So I built my code like this:

$query = Product::with('shop', 'shop.mall');

if (!empty($data["keyword"])) {
    $query = $query->where(function($q) use($data) {
         $q->where('shop.mall.name', 'LIKE', '%' . $data["keyword"] . '%')->orWhere('shop.mall.keyword', 'LIKE', '%' . $data["keyword"] . '%');
    });
}

But it is showing this error:

Column not found: 1054 Unknown column 'shop.mall.name' in 'where clause'

Is there any problem with my query? Thank you

Answer 1

To search within relation use whereHas(), it creates subquery and returns data filtered in shop.mall.

    $query = Product::with('shop', 'shop.mall');

    if (!empty($data["keyword"])) {
        $query = $query->whereHas('shop.mall',function($q) uses ($data){
            $q->where('name', 'LIKE', '%' . $data["keyword"] . '%')->
              orWhere('keyword', 'LIKE', '%' . $data["keyword"] . '%');
        });
    }

Answer 2

I have two tables linked one to many (files -> people). I need to select all files where people have a certain name but i need the whole group of that selection.

FILES: id numero anno 1 1 2020 2 1 2021

PEOPLE: id fascicoli_id fascicoli_numero fascicoli_anno cognome 1 1 1 2020 Urbano 2 1 1 2020 Del Mastro 3 2 2 2021 Di Ciano

Well, if I do a search where 'cognome' LIKE '% Del' (id = 2), I must also receive the other records with the same fascicoli_id (therefore 'Del Mastro' and 'Urbano').

I have tried with the following (where $ query is the search parameter I pass with GET method in ajax):

$ fascicoli = Fascicoli :: with ('person') -> get ();
$ fascicoli = $ fascicoli [0] -> person () -> where ('surname', 'like', '%'. $ query. '%') -> get ();

and also:

$ fascicoli = Fascicoli :: whereHas ('person', function ($ sub) use ($ query) {
    $ sub-> where ('last name', 'like', '%'. $ query. '%')
}) -> get ();