Class: SimplePosts::Posts

Inherits:
Object
  • Object
show all
Defined in:
lib/simple_posts/posts.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Posts

Returns a new instance of Posts.



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# File 'lib/simple_posts/posts.rb', line 22

def initialize
  @posts_by_post_name = {}
  @posts_by_post_id = {}
  @posts_by_tag = {}
  @posts_by_topic = {}
  @blog_posts = []
  @non_blog_posts = []

  setup_renderer
  parse_all
end

Instance Attribute Details

#non_blog_posts ⇒ Object (readonly)

Returns the value of attribute non_blog_posts.



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# File 'lib/simple_posts/posts.rb', line 20

def non_blog_posts
  @non_blog_posts
end

#posts ⇒ Object (readonly)

Returns the value of attribute posts.



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# File 'lib/simple_posts/posts.rb', line 20

def posts
  @posts
end

#renderer ⇒ Object (readonly)

Returns the value of attribute renderer.



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# File 'lib/simple_posts/posts.rb', line 20

def renderer
  @renderer
end

Instance Method Details

#blog_posts ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 137

def blog_posts
  @blog_posts.sort { |a, b| a.date <=> b.date }
end

#each ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 87

def each
  @posts.each do |post|
    yield post
  end
end

#find(thing) ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 71

def find(thing)
  @posts_by_post_id[thing] || @posts_by_post_name[thing]
end

#find_all_files ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 79

def find_all_files
  basepath = Rails.root.join('app', 'posts').to_s
  Dir.glob(File.join(basepath, "**/*")).map do |fullpath|
    next if File.directory?(fullpath)
    fullpath.gsub(basepath + "/", '')
  end.compact
end

#for_topic(topic) ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 97

def for_topic(topic)
  @posts_by_topic[topic].sort { |a,b| b.date <=> a.date }
end

#parse_all ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 39

def parse_all
  @posts = find_all_files.map do |post|
    next if File.basename(post).start_with?('_')
    Post.new(post, @renderer)
  end.compact

  @posts.each do |post|
    @posts_by_post_name[post.name] = post
    @posts_by_post_id[post.post_id] = post
    if post.topic
      topic = post.topic.downcase
      @posts_by_topic[topic] ||= []
      @posts_by_topic[topic] << post
    end

    post.alternate_links.each do |link|
      @posts_by_post_id[link] = post
    end

    post.tags.each do |tag|
      @posts_by_tag[tag.downcase] ||= []
      @posts_by_tag[tag.downcase] << post
    end

    if post.is_blog_post?
      @blog_posts << post
    else
      @non_blog_posts << post
    end
  end
end

#related_posts(target) ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 111

def related_posts(target)
  freqs = tag_frequencies

  highest_freq = freqs.values.max
  related_scores = Hash.new(0)

  blog_posts.each do |post|
    post.tags.each do |tag|
      if target.tags.include?(tag) && target != post
        tag_freq = freqs[tag]
        related_scores[post] += (1 + highest_freq - tag_freq)
      end
    end
  end

  related_scores.sort do |a,b|
   if a[1] < b[1]
        1
      elsif a[1] > b[1]
        -1
      else
        b[0].date <=> a[0].date
      end
  end.select{|post,freq| freq > 1}.collect {|post,freq| post}
end

#setup_renderer ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 34

def setup_renderer
  @renderer = Redcarpet::Markdown.new(
    HTMLwithHighlights, :fenced_code_blocks => true)
end

#tag_frequencies ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 101

def tag_frequencies
  tags = Hash.new(0)
  @posts.each do |post|
    post.tags.each do |tag|
      tags[tag] += 1
    end
  end
  tags
end

#tagged(tag) ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 75

def tagged(tag)
  (@posts_by_tag[tag.downcase] || [])
end

#topics ⇒ Object 



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# File 'lib/simple_posts/posts.rb', line 93

def topics
  @posts_by_topic.keys.sort
end