Laravel - Counting from third relationship - php

Question

I have the following code:
$main = Main::with(['clients', 'events.orderitems' => function($query) {
$query->whereIn('order_id', function($query) {
$query->select('id')->from('orders')->where('orderPaid', 1)->orWhere('orderStatus', 3);
});
}])->where('id', $id)->first();
foreach($main->events as $dates) {
$all_paid = 0;
$all_pending = 0;
foreach($dates->orderitems as $item) {
if($item->orderPaid == 1) {
$all_paid = $all_paid + $item->quantity;
}
}
$dates->orderscount = $all_paid;
foreach($dates->orderitems as $item) {
if($item->orderStatus == 3) {
$all_pending = $all_pending + $item->quantity;
}
}
$dates->pendingcount = $all_pending;
}
Is there maybe an MYSQL way to Count the PAID orders and the orders with orderStatus == 3 in the SQL? I think, how I am doing it, it's way to messy and not very good for the performance.
So a "Main" has n-events which have n-orderItems.
I need to get to a "Main" Event, all the Events with all PAID and orderStatus == 3 items. How can I do that?
UPDATE - SOLUTION:
foreach($main->events as $dates) {
$dates->orderscount = OrderItems::where('events_id',$dates->id)->whereHas('orders', function($q) {
$q->where('orderPaid', 1);
})->sum('quantity');
$dates->pendingcount = OrderItems::where('events_id',$dates->id)->whereHas('orders', function($q) {
$q->where('orderStatus', 3);
})->sum('quantity');
}

Answer 1

Laravel has an aggregate method which does just that.
The same way you are using first to only get the first result of a query as in:
)->where('id', $id)->first();
to get the count you could use count()
DB::table('orders')->where('orderPaid', 1)->orWhere('orderStatus', 3)->count();
If you need the sum() of the products and not the count as in your title, you could for your particular example use:
$total_quantity = DB::table('orders')->where('orderPaid', 1)->orWhere('orderStatus', 3)->sum('quantity');
UPDATE:
As in your example to get both counts you would change you foreach to be something similar to:
foreach($main->events as $dates) {
$all_paid = DB::table('orders')->where('order_id',$dates->id)->where('orderPaid', 1)->count();
$all_pending = DB::table('orders')->where('order_id',$dates->id)->where('orderStatus', 3)->count();
$dates->orderscount = $all_paid;
$dates->pendingcount = $all_pending;
}

Answer 2

You can use sum() with your eloquent query in laravel. Check under the #Aggregates section here:
http://laravel.com/docs/4.2/queries