Calculate Sum with Pagination

How to calculate the sum of all records when you have only the PAGINATED collection? Do the calculation BEFORE the pagination, but from the same query.

 1// How to get sum of post_views with pagination?
 2$posts = Post::paginate(10);
 3// This will be only for page 1, not ALL posts
 4$sum = $posts->sum('post_views');
 5 
 6// Do this with Query Builder
 7$query = Post::query();
 8// Calculate sum
 9$sum = $query->sum('post_views');
10// And then do the pagination from the same query
11$posts = $query->paginate(10);