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blog/_src/_plugins/cat_pagination.rb

78 lines
1.9 KiB
Ruby

#
# https://gist.github.com/runemadsen/6263974
#
# modified
#
module Jekyll
class Pagination < Generator
def generate(site)
end
end
class CategoryPages < Generator
safe true
def generate(site)
site.pages.dup.each do |page|
paginate(site, page) if CategoryPager.pagination_enabled?(site.config, page)
end
end
def paginate(site, page)
# sort categories by descending date of publish
category_posts = site.categories[page.data['category']].sort_by { |p| -p.date.to_f }
# calculate total number of pages
pages = CategoryPager.calculate_pages(category_posts, site.config['paginate'].to_i)
# iterate over the total number of pages and create a physical page for each
(1..pages).each do |num_page|
# the CategoryPager handles the paging and category data
pager = CategoryPager.new(site, num_page, category_posts, page.data['category'], pages)
if num_page > 1
newpage = Page.new(site, site.source, page.dir, page.name)
newpage.pager = pager
newpage.dir = File.join(page.dir, "/page/#{num_page}")
site.pages << newpage
else
page.pager = pager
end
end
end
end
class CategoryPager < Pager
attr_reader :category
def self.pagination_enabled?(config, page)
page.name == 'index.html' && page.data.key?('category') && !config['paginate'].nil?
end
# same as the base class, but includes the category value
def initialize(site, page, all_posts, category, num_pages = nil)
@category = category
super site, page, all_posts, num_pages
end
# use the original to_liquid method, but add in category info
alias_method :original_to_liquid, :to_liquid
def to_liquid
x = original_to_liquid
x['category'] = @category
x
end
end
end