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Contents
require 'active_support/core_ext/object/deep_dup'
require 'middleman-core/util'
module Middleman
module Pagination
module ArrayHelpers
def per_page(per_page)
return to_enum(__method__, per_page) unless block_given?
parts = if per_page.respond_to? :call
per_page.call(dup)
else
each_slice(per_page).reduce([]) do |sum, items|
sum << items
end
end
num_pages = parts.length
collection = self
current_start_i = 0
parts.each_with_index do |items, i|
num = i + 1
meta = ::Middleman::Pagination.page_locals(
num,
num_pages,
collection,
items,
current_start_i
)
yield items, num, meta, num >= num_pages
current_start_i += items.length
end
end
end
def self.page_locals(page_num, num_pages, collection, items, page_start)
per_page = items.length
# Index into collection of the last item of this page
page_end = (page_start + per_page) - 1
::Middleman::Util.recursively_enhance(page_number: page_num,
num_pages: num_pages,
per_page: per_page,
# The range of item numbers on this page
# (1-based, for showing "Items X to Y of Z")
page_start: page_start + 1,
page_end: [page_end + 1, collection.length].min,
# Use "collection" in templates.
collection: collection)
end
end
end
Version data entries
49 entries across 49 versions & 3 rubygems