Module: StuffArc::Base

Defined in:
lib/stuff_arc/stuff_arc.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(mod) ⇒ Object 



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# File 'lib/stuff_arc/stuff_arc.rb', line 89

def self.included(mod)
  # if I'm included, then I want to extend myself
  puts "I'm being included in #{mod}!!!!"
  mod.send :extend, self
end

Instance Method Details

#archive(options = {}) ⇒ Object 



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# File 'lib/stuff_arc/stuff_arc.rb', line 20

def archive options = {}
  return self.class.archive options unless self.class == Class
  mod_lowercase = self.to_s.underscore.pluralize
  
  unless (lib_dir = options.delete(:lib_dir))
    if Rails.public_path
      lib_dir =  File.join( File.dirname(::Rails.public_path), 'lib', 'stuff_arc' )
      Dir.mkdir(lib_dir) unless File.exists? lib_dir
    else
      lib_dir = '.'
    end
  end
  fname = options.delete(:fname) || "#{mod_lowercase}.json"
  fname = File.join(lib_dir, fname) unless fname[0] == File::SEPARATOR

  if File.exists? fname
    back_name = fname + '~'
    File.unlink back_name if File.exists? back_name
    File.rename fname, back_name
  end
  f = File.open(fname, 'w')
  list = self.all
  save_include_root_in_json = include_root_in_json
  self.include_root_in_json = false
  list.each do |instance|
    # as_json returns a hash, which we have to change to a JSON string
    f.write instance.as_json.to_json + "\n"
  end
  self.include_root_in_json = save_include_root_in_json
  f.close
  list.length
end

#unarchive(options = {}) ⇒ Object 



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# File 'lib/stuff_arc/stuff_arc.rb', line 53

def unarchive options = {}
  return self.class.unarchive options unless self.class == Class
  mod_lowercase = self.to_s.underscore.pluralize

  unless (lib_dir = options.delete(:lib_dir))
    if Rails.public_path
      lib_dir =  File.join( File.dirname(::Rails.public_path), 'lib', 'stuff_arc' )
      Dir.mkdir(lib_dir) unless File.exists? lib_dir
    else
      lib_dir = '.'
    end
  end
  fname = options.delete(:fname) || "#{mod_lowercase}.json"
  fname = File.join(lib_dir, fname) unless fname[0] == File::SEPARATOR

  return nil unless File.exists? fname

  f = File.new fname

  counter = 0
  f.lines do |line|
    tmp = self.new
    hash =  ActiveSupport::JSON.decode(line.chomp)
    hash.each { |k,v| tmp.send("#{k}=".to_sym, v) }
    begin
      tmp.save!
      counter += 1
    rescue Exception => e
      puts "exception unarchiving #{self}: #{e}\n"
    end
  end

  f.close
  counter
end