Module: Lunch

• user_id
• user_id.ids
• date
• price

new_orders = dict(self.env["lunch.order"]._read_group([
            ("date", "in", self.mapped("date")),
            ("user_id", "in", self.user_id.ids),
            ("state", "=", "new"),
        ], ['user_id'], ['id:recordset']))
for order in self:
            user_new_orders = new_orders.get(order.user_id)
            price = 0
            if user_new_orders:
                user_new_orders = user_new_orders.filtered(lambda lunch_order: lunch_order.date == order.date)
                price = sum(order.price for order in user_new_orders)
            wallet_amount = self.env['lunch.cashmove'].get_wallet_balance(order.user_id) - price
            order.display_add_button = wallet_amount >= order.price

• display_add_button