Module: Sequel::Paginate::ViewsHelper

Defined in:
lib/sequel/paginate/views_helper.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object



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# File 'lib/sequel/paginate/views_helper.rb', line 4

def self.included(base)
  base.extend(self)
end

Instance Method Details

#paginate(models, *args, &block) ⇒ Object



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# File 'lib/sequel/paginate/views_helper.rb', line 7

def paginate(models, *args, &block)
  args = [{}] if args.nil? || args.empty?
  page_no = (params[:page] || 1).to_i
  left   = args[0][:left]    || 3
  right  = args[0][:right]   || 3
  middle = args[0][:middle]  || 3
  remote = args[0][:remote]  || false
  html_class = args[0][:class] || "pagination"
  class_name = models.first.class
  path = request.path
  page_count = (1..(class_name.count.to_f / class_name.paginate_per).ceil).to_a
  return nil if page_count.length <= 1
  page_to_show = []
  if page_count.count > left + right + middle
    page_count.each do |p|
      if p > left && p < page_count[-right]
        if (p < page_no + middle && p > page_no - middle)
          page_to_show << p
        else
          page_to_show << -1 unless page_to_show.last == -1
        end
      else
        page_to_show << p
      end
    end
  else
    page_to_show = page_count
  end

  html = "<div class='#{html_class}'><ul>"
  if page_no <= 1
    html += "<li><a>Prev</a></li>"
  else
    html += "<li class='previous'><a href='#{path}?page=#{page_no-1}' #{remote_tag(remote)}>Prev</a></li>"
  end
  page_to_show.each do |page|
    if page == -1
      html += "<li><a>...</a></li>"
    else
      if page == page_no
        html += "<li class='active'><a>#{page}</a></li>"
      else
        html += "<li><a href='#{path}?page=#{page}' #{remote_tag(remote)}>#{page}</a></li>"
      end
    end
  end
  if page_no >= page_count.count
    html += "<li><a>Next</a></li>"
  else
    html += "<li class='next'><a href='#{path}?page=#{page_no+1}' #{remote_tag(remote)}>Next</a></li>"
  end
  html += "</ul></div>"
  html.html_safe
end