How to execute raw queries with Laravel 5.1?
DB::statement("your query")
I used it for add index to column in migration
Example from Laravel documentation:
$users = DB::table('users')
->selectRaw('count(*) as user_count, status')
->where('status', '<>', 1)
->groupBy('status')
->get();
Another example:
$products = DB::table('products')
->leftjoin('category','category.product_id','=','products.id')
->selectRaw('COUNT(*) as nbr', 'products.*')
->groupBy('products.id')
->get();
Another example – we can even perform avg() and count() in the same statement.
$salaries = DB::table('salaries')
->selectRaw('companies.name as company_name, avg(salary) as avg_salary, count(*) as people_count')
->join('companies', 'salaries.company_id', '=', 'companies.id')
->groupBy('companies.id')
->orderByDesc('avg_salary')
->get();
Credits: https://blog.quickadminpanel.com/5-ways-to-use-raw-database-queries-in-laravel/
I found the solution in this topic and I code this:
$cards = DB::select("SELECT
cards.id_card,
cards.hash_card,
cards.`table`,
users.name,
0 as total,
cards.card_status,
cards.created_at as last_update
FROM cards
LEFT JOIN users
ON users.id_user = cards.id_user
WHERE hash_card NOT IN ( SELECT orders.hash_card FROM orders )
UNION
SELECT
cards.id_card,
orders.hash_card,
cards.`table`,
users.name,
sum(orders.quantity*orders.product_price) as total,
cards.card_status,
max(orders.created_at) last_update
FROM menu.orders
LEFT JOIN cards
ON cards.hash_card = orders.hash_card
LEFT JOIN users
ON users.id_user = cards.id_user
GROUP BY hash_card
ORDER BY id_card ASC");