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Contents
# frozen_string_literal: true
module Karafka
module Web
module Ui
module Lib
# A simple wrapper for paginating array related data structures
class PaginateArray
# @param array [Array] array we want to paginate
# @param current_page [Integer] page we want to be on
# @return [Array<Array, <Integer, nil>>] Array with two elements: first is the array with
# data of the given page and second is the next page number of nil in case there is
# no next page (end of data)
def call(array, current_page)
slices = array.each_slice(per_page).to_a
current_data = slices[current_page - 1] || []
if slices.count >= current_page - 1 && current_data.size >= per_page
next_page = current_page + 1
else
next_page = nil
end
[current_data, next_page]
end
private
# @return [Integer] how many elements should we display in the UI
def per_page
::Karafka::Web.config.ui.per_page
end
end
end
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems