Class: Post

Inherits:
Object
  • Object
show all
Extended by:
ActiveModel::Naming
Includes:
Gravtastic
Defined in:
app/models/post.rb

Defined Under Namespace

Classes: Sanitizer

Constant Summary collapse

FILENAME_FORMAT = 
/^(\d+-\d+-\d+)-(.*)(\.[^.]+)$/
TagHelper = 
Class.new.extend ActionView::Helpers::TagHelper

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ Post

Returns a new instance of Post.



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# File 'app/models/post.rb', line 11

def initialize(path)
  @path = path
  @date_str, @slug = File.basename(path).match(FILENAME_FORMAT).captures
end

Instance Attribute Details

#slug ⇒ Object (readonly)

Returns the value of attribute slug.



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# File 'app/models/post.rb', line 7

def slug
  @slug
end

Class Method Details

.all ⇒ Object 



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# File 'app/models/post.rb', line 96

def all
  file_extensions = Postmarkdown::Config.options[:markdown_file_extensions].join(',')
  @@posts ||= Dir.glob(Rails.root + "app/posts/*.{#{file_extensions}}").map do |filename|
    Post.new filename
  end.select(&:visible?).sort_by(&:date).reverse
end

.feed ⇒ Object 



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# File 'app/models/post.rb', line 126

def feed
  all.first(10)
end

.feed_last_modified ⇒ Object 



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# File 'app/models/post.rb', line 130

def feed_last_modified
  feed.first.try(:last_modified) || Time.now.utc
end

.find(id) ⇒ Object 



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# File 'app/models/post.rb', line 114

def find(id)
  where(:to_param => id).first or raise ActiveRecord::RecordNotFound, "Could not find post with ID #{id.inspect}"
end

.first ⇒ Object 



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# File 'app/models/post.rb', line 118

def first
  all.first
end

.last ⇒ Object 



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# File 'app/models/post.rb', line 122

def last
  all.last
end

.reset! ⇒ Object 



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# File 'app/models/post.rb', line 134

def reset!
  @@posts = nil
end

.where(conditions = {}) ⇒ Object 



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# File 'app/models/post.rb', line 103

def where(conditions = {})
  conditions = conditions.symbolize_keys
  conditions.assert_valid_keys :year, :month, :day, :slug, :to_param
  [:year, :month, :day].each do |key|
    conditions[key] = conditions[key].to_i if conditions[key].present?
  end
  all.select do |post|
    conditions.all? { |key, value| post.send(key) == value }
  end
end

Instance Method Details

#author ⇒ Object 



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# File 'app/models/post.rb', line 47

def author
  metadata[:author]
end

#content ⇒ Object 



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

def content
  load_content
  @content
end

#content_html ⇒ Object 



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# File 'app/models/post.rb', line 74

def content_html
  RDiscount.new(content).to_html.html_safe
end

#date ⇒ Object 



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# File 'app/models/post.rb', line 55

def date
  @date ||= Time.zone.parse(metadata[:date] || @date_str).to_date
end

#email ⇒ Object 



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# File 'app/models/post.rb', line 51

def email
  metadata[:email]
end

#metadata ⇒ Object 



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# File 'app/models/post.rb', line 33

def metadata
  load_content
  @metadata
end

#permalink_format ⇒ Object 



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# File 'app/models/post.rb', line 25

def permalink_format
  Postmarkdown::Config.options[:permalink_format]
end

#summary_html ⇒ Object 



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# File 'app/models/post.rb', line 84

def summary_html
  if metadata[:summary].present?
    TagHelper.content_tag :p, metadata[:summary]
  else
    html = Sanitizer.new.sanitize(content_html)
    doc = Nokogiri::HTML.fragment(html)
    para = doc.search('p').detect { |p| p.text.present? }
    para.try(:to_html).try(:html_safe)
  end
end

#timestamp ⇒ Object Also known as: last_modified 



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# File 'app/models/post.rb', line 61

def timestamp
  date.to_time_in_current_zone
end

#title ⇒ Object 



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# File 'app/models/post.rb', line 43

def title
  metadata[:title] || slug.titleize
end

#to_key ⇒ Object 



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# File 'app/models/post.rb', line 29

def to_key
  [slug]
end

#to_param ⇒ Object 



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# File 'app/models/post.rb', line 16

def to_param
  case permalink_format
  when :day   then "%04d/%02d/%02d/%s" % [year, month, day, slug]
  when :month then "%04d/%02d/%s" % [year, month, slug]
  when :year  then "%04d/%s" % [year, slug]
  when :slug  then slug
  end
end

#to_s ⇒ Object 



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# File 'app/models/post.rb', line 70

def to_s
  "#{title.inspect} (#{slug})"
end

#visible? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/post.rb', line 66

def visible?
  timestamp <= Time.zone.now
end