Use through instead of map when using pagination

When you want to map paginated data and return only a subset of the fields, use through rather than map. The map breaks the pagination object and changes it's identity. While, through works on the paginated data itself

// Don't: Mapping paginated data
$employees = Employee::paginate(10)->map(fn ($employee) => [
    'id' => $employee->id,
    'name' => $employee->name
])
 
// Do: Mapping paginated data
$employees = Employee::paginate(10)->through(fn ($employee) => [
    'id' => $employee->id,
    'name' => $employee->name
])