Class: Karafka::Web::Ui::Lib::Paginations::Paginators::Arrays

Inherits:
Base
  • Object
show all
Defined in:
lib/karafka/web/ui/lib/paginations/paginators/arrays.rb

Overview

A simple wrapper for paginating array related data structures We call this with plural (same with ‘Sets`) to avoid confusion with Ruby classes

Class Method Summary collapse

Methods inherited from Base

per_page

Class Method Details

.call(array, current_page) ⇒ Array<Array, Boolean>

Returns Array with two elements: first is the array with data of the given page and second is a boolean flag with info if the elements we got are from the last page.

Parameters:

  • array (Array) —

    array we want to paginate

  • current_page (Integer) —

    page we want to be on

Returns:

  • (Array<Array, Boolean>) —

    Array with two elements: first is the array with data of the given page and second is a boolean flag with info if the elements we got are from the last page



19
20
21
22
23
24
25
 
# File 'lib/karafka/web/ui/lib/paginations/paginators/arrays.rb', line 19

def call(array, current_page)
  slices = array.each_slice(per_page).to_a
  current_data = slices[current_page - 1] || []
  last_page = !(slices.count >= current_page - 1 && current_data.size >= per_page)

  [current_data, last_page]
end