ruby-x.github.io/app/models/post.rb

64 lines
1.6 KiB
Ruby

class Post
@@posts = nil
attr_reader :year , :month , :day , :ext
def initialize(path)
year , rest = *path.split("/")
@year = parse_int(year , 2100 , "year")
base , @ext = File.basename(rest).split(".")
raise "must be partial, start with _ not:#{base}" unless base[0] == "_"
@words = base.split("-")
raise "Invalid path #{path}" unless @words
@month = parse_int(@words.shift[1 .. -1] , 12 , "month")
@day = parse_int(@words.shift , 32 , "week")
end
def slug
@words.join("-").downcase
end
def title
@words.join(" ")
end
def template_name
"#{year}/#{month.to_s.rjust(2, '0')}-#{day.to_s.rjust(2, '0')}-#{@words.join("-")}"
end
def template_file
"#{year}/_#{month.to_s.rjust(2, '0')}-#{day.to_s.rjust(2, '0')}-#{@words.join("-")}"
end
def date
Date.new(year,month,day)
end
def parse_int( value , max , name)
ret = value.to_i
raise "invalid #{name} #{value} > #{max}" if ret > max or ret < 1
ret
end
def content
File.open("#{self.class.blog_path}/#{template_file}.#{ext}" ).read
end
def summary
ret = content.split("%h2").first.gsub("%p", "<br/>").html_safe
ret[0 .. 400]
end
def self.posts
return @@posts if @@posts
posts ={}
Dir["#{self.blog_path}/2*/_*.haml"].reverse.each do |file|
parts = file.split("/")
post_name = parts[-2] + "/" + parts[-1]
post = Post.new(post_name)
posts[post.slug] = post
end
@@posts = posts.sort_by { |slug, post| post.sort_key }.reverse.to_h
end
def sort_key
year*1000 + month*10 + day
end
def self.blog_path
Rails.configuration.blog_path
end
end