Class: Jekyll::Tags::PostUrl

Inherits:
Liquid::Tag
  • Object
show all
Defined in:
lib/liquid/tags/post_url.rb

Instance Method Summary collapse

Constructor Details

#initialize(tag_name, post, tokens) ⇒ PostUrl

Returns a new instance of PostUrl.



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# File 'lib/liquid/tags/post_url.rb', line 57

def initialize(tag_name, post, tokens)
  super
  @orig_post = post.strip
  begin
    @post = PostComparer.new(@orig_post)
  rescue StandardError => e
    raise Jekyll::Errors::PostURLError, <<-MSG
Could not parse name of post "#{@orig_post}" in tag 'post_url'.

Make sure the post exists and the name is correct.

#{e.class}: #{e.message}
MSG
  end
end

Instance Method Details

#render(context) ⇒ Object

Raises:

  • (Jekyll::Errors::PostURLError) 


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# File 'lib/liquid/tags/post_url.rb', line 73

def render(context)
  site = context.registers[:site]

  site.posts.docs.each do |p|
    return p.url if @post == p
  end

  # New matching method did not match, fall back to old method
  # with deprecation warning if this matches

  site.posts.docs.each do |p|
    next unless @post.deprecated_equality p
    Jekyll::Deprecator.deprecation_message "A call to "\
      "'{% post_url #{@post.name} %}' did not match " \
      "a post using the new matching method of checking name " \
      "(path-date-slug) equality. Please make sure that you " \
      "change this tag to match the post's name exactly."
    return p.url
  end

  raise Jekyll::Errors::PostURLError, <<-MSG
Could not find post "#{@orig_post}" in tag 'post_url'.

Make sure the post exists and the name is correct.
MSG
end