instiki/lib/chunks/category.rb

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2007-01-22 14:43:50 +01:00
require 'chunks/chunk'
# The category chunk looks for "category: news" on a line by
# itself and parses the terms after the ':' as categories.
# Other classes can search for Category chunks within
# rendered content to find out what categories this page
# should be in.
#
# Category lines can be hidden using ':category: news', for example
class Category < Chunk::Abstract
CATEGORY_PATTERN = /^(:)?category\s*:(.*)$/i
def self.pattern() CATEGORY_PATTERN end
attr_reader :hidden, :list
def initialize(match_data, content)
super(match_data, content)
@hidden = match_data[1]
@list = match_data[2].split(',').map { |c| c.strip }
@unmask_text = ''
if @hidden
@unmask_text = ''
else
category_urls = @list.map { |category| url(category) }.join(', ')
@unmask_text = '<div class="property"> category: ' + category_urls + '</div>'
end
end
# TODO move presentation of page metadata to controller/view
def url(category)
%{<a class="category_link" href="../list/?category=#{category}">#{category}</a>}
end
end