Class: PageSet

Inherits:
Array
  • Object
show all
Defined in:
app/models/page_set.rb

Overview

Container for a set of pages with methods for manipulation.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(web, pages = nil, condition = nil) ⇒ PageSet

Returns a new instance of PageSet.



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# File 'app/models/page_set.rb', line 6

def initialize(web, pages = nil, condition = nil)
  @web = web
  # if pages is not specified, make a list of all pages in the web
  if pages.nil?
    super(web.pages.values)
  # otherwise use specified pages and condition to produce a set of pages
  elsif condition.nil?
    super(pages)
  else
    super(pages.select { |page| condition[page] })
  end
end

Instance Attribute Details

#web ⇒ Object (readonly)

Returns the value of attribute web.



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# File 'app/models/page_set.rb', line 4

def web
  @web
end

Instance Method Details

#authors ⇒ Object 



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# File 'app/models/page_set.rb', line 85

def authors
  self.inject([]) { |authors, page| authors << page.authors }.flatten.uniq.sort
end

#by_name ⇒ Object Also known as: sort 



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# File 'app/models/page_set.rb', line 24

def by_name
  PageSet.new(@web, sort_by { |page| page.name })
end

#by_revision ⇒ Object 



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# File 'app/models/page_set.rb', line 30

def by_revision
  PageSet.new(@web, sort_by { |page| page.created_at }).reverse 
end

#characters ⇒ Object 



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# File 'app/models/page_set.rb', line 50

def characters
  self.inject(0) { |chars,page| chars += page.content.size }
end

#most_recent_revision ⇒ Object 



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# File 'app/models/page_set.rb', line 19

def most_recent_revision
  self.map { |page| page.created_at }.max || Time.at(0)
end

#names ⇒ Object 



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# File 'app/models/page_set.rb', line 77

def names
  self.map { |page| page.name }
end

#orphaned_pages ⇒ Object

Returns all the orphaned pages in this page set. That is, pages in this set for which there is no reference in the web. The HomePage and author pages are always assumed to have references and so cannot be orphans Pages that refer to themselves and have no links from outside are oprphans.



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# File 'app/models/page_set.rb', line 59

def orphaned_pages
  never_orphans = web.select.authors + ['HomePage']
  self.select { |page|
    if never_orphans.include? page.name
      false
    else
      references = pages_that_reference(page.name)
      references.empty? or references == [page]
    end
  }
end

#pages_authored_by(author) ⇒ Object 



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# File 'app/models/page_set.rb', line 46

def pages_authored_by(author)
  self.select { |page| page.authors.include?(author) }
end

#pages_that_include(page_name) ⇒ Object 



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# File 'app/models/page_set.rb', line 42

def pages_that_include(page_name)
  self.select { |page| page.wiki_includes.include?(page_name) }
end

#pages_that_link_to(page_name) ⇒ Object 



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# File 'app/models/page_set.rb', line 38

def pages_that_link_to(page_name)
  self.select { |page| page.wiki_words.include?(page_name) }
end

#pages_that_reference(page_name) ⇒ Object 



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# File 'app/models/page_set.rb', line 34

def pages_that_reference(page_name)
  self.select { |page| page.wiki_references.include?(page_name) }
end

#wanted_pages ⇒ Object

Returns all the wiki words in this page set for which there are no pages in this page set’s web



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# File 'app/models/page_set.rb', line 73

def wanted_pages
  wiki_words - web.select.names
end

#wiki_words ⇒ Object 



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# File 'app/models/page_set.rb', line 81

def wiki_words
  self.inject([]) { |wiki_words, page| wiki_words << page.wiki_words }.flatten.uniq
end