Class: Paginate::Renderer

Inherits:
Object
  • Object
show all
Defined in:
lib/paginate/renderer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Renderer

Returns a new instance of Renderer.



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# File 'lib/paginate/renderer.rb', line 6

def initialize(options)
  @current_page = [options[:page].to_i, 1].max
  options.reverse_merge!(Paginate::Config.to_hash)
  @options = options.merge(:page => current_page)
end

Instance Attribute Details

#current_page ⇒ Object

Returns the value of attribute current_page.



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# File 'lib/paginate/renderer.rb', line 4

def current_page
  @current_page
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/paginate/renderer.rb', line 3

def options
  @options
end

Instance Method Details

#processor ⇒ Object 



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# File 'lib/paginate/renderer.rb', line 12

def processor
  @processor ||= Paginate::Base.new(options)
end

#render ⇒ Object 



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# File 'lib/paginate/renderer.rb', line 38

def render
  html = String.new
  previous_label = I18n.t("paginate.previous")
  previous_url = url_for(options[:page] - 1)
  next_label = I18n.t("paginate.next")
  next_url = url_for(options[:page] + 1)
  page_label = I18n.t("paginate.page", options)

  css = %w[ paginate ]
  css << "disabled" unless processor.previous_page? || processor.next_page?

  html << %[<ul class="#{css.join(" ")}">]

  # Previous page
  if processor.previous_page?
    html << %[<li class="previous-page"><a href="#{previous_url}" title="#{previous_label}">#{previous_label}</a></li>]
  else
    html << %[<li class="previous-page disabled"><span title="#{previous_label}">#{previous_label}</span></li>]
  end

  # Current page
  html << %[<li class="page"><span>#{page_label}</span></li>]

  # Next page
  if processor.next_page?
    html << %[<li class="next-page"><a href="#{next_url}" title="#{next_label}">#{next_label}</a></li>]
  else
    html << %[<li class="next-page disabled"><span title="#{next_label}">#{next_label}</span></li>]
  end

  html << %[</ul>]

  html.html_safe
end

#url_for(page) ⇒ Object 



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# File 'lib/paginate/renderer.rb', line 16

def url_for(page)
  url = options[:url] || options[:fullpath]

  if url.respond_to?(:call)
    url = url.call(page).to_s.dup
  else
    url = url.dup

    re = Regexp.new("([&?])#{Regexp.escape(options[:param_name].to_s)}=[^&]*")
    url.gsub!(re, "\\1")
    url.gsub!(/[\?&]$/, "")
    url.gsub!(/&+/, "&")
    url.gsub!(/\?&/, "?")

    url << (url =~ /\?/ ? "&" : "?")
    url << page.to_query(options[:param_name])
  end

  url.gsub!(/&/, "&amp;")
  url
end