73 lines
1.9 KiB
Ruby
73 lines
1.9 KiB
Ruby
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# Container for a set of pages with methods for manipulation.
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class PageSet < Array
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attr_reader :web
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def initialize(web, pages = nil, condition = nil)
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@web = web
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# if pages is not specified, make a list of all pages in the web
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if pages.nil?
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super(web.pages.values)
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# otherwise use specified pages and condition to produce a set of pages
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elsif condition.nil?
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super(pages)
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else
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super(pages.select { |page| condition[page] })
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end
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end
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def most_recent_revision
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self.map { |page| page.created_at }.max || Time.at(0)
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end
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def by_name
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PageSet.new(@web, sort_by { |page| page.name })
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end
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alias :sort :by_name
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def by_revision
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PageSet.new(@web, sort_by { |page| page.created_at }).reverse
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end
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def pages_that_reference(page_name)
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self.select { |page| page.wiki_words.include?(page_name) }
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end
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def pages_authored_by(author)
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self.select { |page| page.authors.include?(author) }
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end
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def characters
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self.inject(0) { |chars,page| chars += page.content.size }
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end
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# Returns all the orphaned pages in this page set. That is,
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# pages in this set for which there is no reference in the web.
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# The HomePage and author pages are always assumed to have
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# references and so cannot be orphans
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def orphaned_pages
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references = web.select.wiki_words + ["HomePage"] + web.select.authors
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self.reject { |page| references.include?(page.name) }
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end
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# Returns all the wiki words in this page set for which
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# there are no pages in this page set's web
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def wanted_pages
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wiki_words - web.select.names
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end
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def names
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self.map { |page| page.name }
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end
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def wiki_words
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self.inject([]) { |wiki_words, page| wiki_words << page.wiki_words }.flatten.uniq
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end
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def authors
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self.inject([]) { |authors, page| authors << page.authors }.flatten.uniq.sort
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end
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end
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