Class: Locomotive::Liquid::Tags::Paginate
- Inherits:
-
Liquid::Block
- Object
- Liquid::Block
- Locomotive::Liquid::Tags::Paginate
- Defined in:
- lib/locomotive/liquid/tags/paginate.rb
Overview
Paginate a collection
Usage:
paginate contents.projects by 5 %
{% for project in paginate.collection %}
{{ project.name }}
{% endfor %}
{% endpaginate %}
Constant Summary collapse
- Syntax =
/(#{::Liquid::Expression}+)\s+by\s+([0-9]+)/
Instance Method Summary collapse
-
#initialize(tag_name, markup, tokens, context) ⇒ Paginate
constructor
A new instance of Paginate.
- #render(context) ⇒ Object
Constructor Details
#initialize(tag_name, markup, tokens, context) ⇒ Paginate
Returns a new instance of Paginate.
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# File 'lib/locomotive/liquid/tags/paginate.rb', line 22 def initialize(tag_name, markup, tokens, context) if markup =~ Syntax @collection_name = $1 @per_page = $2.to_i @options = { } markup.scan(::Liquid::TagAttributes) { |key, value| @options[key.to_sym] = value.gsub(/^'/, '').gsub(/'$/, '') } @window_size = @options[:window_size] ? @options[:window_size].to_i : 3 else raise ::Liquid::SyntaxError.new("Syntax Error in 'paginate' - Valid syntax: paginate <collection> by <number>") end super end |
Instance Method Details
#render(context) ⇒ Object
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# File 'lib/locomotive/liquid/tags/paginate.rb', line 36 def render(context) context.stack do collection = context[@collection_name] raise ::Liquid::ArgumentError.new("Cannot paginate array '#{@collection_name}'. Not found.") if collection.nil? if collection.is_a? Array pagination = Kaminari.paginate_array(collection).page(context['current_page']).per(@per_page).to_liquid.stringify_keys else pagination = collection.send(:paginate, { page: context['current_page'], per_page: @per_page }).to_liquid.stringify_keys end page_count, current_page = pagination['total_pages'], pagination['current_page'] path = sanitize_path(context['fullpath']) pagination['previous'] = link(I18n.t('pagination.previous'), current_page - 1, path) if pagination['previous_page'] pagination['next'] = link(I18n.t('pagination.next'), current_page + 1, path) if pagination['next_page'] pagination['parts'] = [] hellip_break = false if page_count > 1 1.upto(page_count) do |page| if current_page == page pagination['parts'] << no_link(page) elsif page == 1 pagination['parts'] << link(page, page, path) elsif page == page_count - 1 pagination['parts'] << link(page, page, path) elsif page <= current_page - window_size or page >= current_page + window_size next if hellip_break pagination['parts'] << no_link('…') hellip_break = true next else pagination['parts'] << link(page, page, path) end hellip_break = false end end context['paginate'] = pagination render_all(@nodelist, context) end end |