Class: MultimediaParadise::Genre

Inherits:
Base
  • Object
show all
Includes:
Genres
Defined in:
lib/multimedia_paradise/audio/genres/genre.rb

Overview

MultimediaParadise::Eurodance

Direct Known Subclasses

Boogie, Concerts, Eurodance, HipHop, ItalianSongs, The1980s, Trance

Constant Summary collapse

DEFAULT_FILE =
#

DEFAULT_FILE

#
MultimediaParadise::Genres::EURODANCE_FILE

Constants included from Genres

MultimediaParadise::Genres::BOOGIE_FILE, MultimediaParadise::Genres::CONCERTS_SONGS_FILE, MultimediaParadise::Genres::EURODANCE_FILE, MultimediaParadise::Genres::GENRE_DIR, MultimediaParadise::Genres::HIP_HOP_FILE, MultimediaParadise::Genres::ITALIAN_SONGS_FILE, MultimediaParadise::Genres::THE_1980s_FILE, MultimediaParadise::Genres::TRANCE_FILE

Constants inherited from Base

Base::ERROR, Base::ERROR_LINE, Base::NAMESPACE, Base::USE_THIS_NAMESPACE_FOR_THE_COLOURS, Base::USE_THIS_NAMESPACE_FOR_THE_CORE_COLOURS

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#actions, #append_what_into, #be_silent, #be_verbose?, #beautiful_url, #cartoons_directory?, #clear_the_internal_hash, #cliner, #cliner_with_time_stamp, #colourized_comment, #copy_file, #crimson, #dataset_from_file_video_collection, #dd_mm_yyyy, #debug?, #default_readlines, #directory_to_realvids?, #do_not_use_opn, #dodgerblue, #does_the_video_player_support_this_commandline?, #e, #ecomment, #ecrimson, #efancy, #enable_debug, #ensure_main_encoding, #ensure_that_the_output_directory_exists, #eparse, #erev, #esystem, #ewarn, #file_video_collection?, #filter_for_audio_files, #filter_for_video_files, #forestgreen, #gold, #grey, #hh_mm_ss, #home_x_video?, #indianred, #infer_the_namespace, #internal_hash?, #is_audio_file?, #is_mkv?, #is_mp3?, #is_mp4?, #is_multimedia_file?, #is_on_roebe?, #is_video_file?, #konsole_colour_peru, #lightblue, #lightgreen, #load_yaml, #local_audio_directory?, #log_dir?, #map_symbol_to_locally_existing_file, #mediumorchid, #mediumpurple, #mediumslateblue, #mkdir, #move_file, #namespace?, #no_file_exists, #no_file_exists_at, #olive, #olivedrab, #opne, #opnecomment, #orange, #palegoldenrod, #palegreen, #powderblue, #project_base_directory?, #rds, #register_sigint, #remove_file, #report_pwd, #reset_the_internal_hash, #return_all_video_files, #return_pwd, #return_random_video, #rev, #royalblue, #save_what_into, #sdir, #seagreen, #seconds_to_time_format, #select_only_video_files_from, #set_be_verbose, #set_use_colours, #sfancy, #sfile, #simp, #skyblue, #slateblue, #springgreen, #steelblue, #swarn, #teal, #time_right_now, #to_hh_mm_ss, #tomato, #true_rev, #try_to_rename_kde_konsole_tab, #ucliner, #use_colours?, #use_opn?, #use_which_video_player?, #verbose_truth, #video_collection?, #violet, #yaml_directory?, #yel

Methods included from CommandlineArgumentsModule

#all_input_starts_with_a_number?, #commandline_arguments?, #commandline_arguments_as_a_string, #first_argument?, #first_non_hyphened_commandline_argument?, #set_commandline_arguments

Constructor Details

#initialize(i = nil, run_already = true) ⇒ Genre

#

initialize

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 59

def initialize(
    i           = nil,
    run_already = true
  )
  reset
  set_yaml_file(
    DEFAULT_FILE
  )
  set_commandline_arguments(i)
  run if run_already
end

Class Method Details

.[](i = ARGV) ⇒ Object

#

MultimediaParadise::Genre[]

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 686

def self.[](i = ARGV)
  new(i)
end

Instance Method Details

#dataset? ⇒ Boolean Also known as: full_dataset?

#

dataset?

#

Returns:

  • (Boolean) 


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 427

def dataset?
  @dataset
end

#do_the_default_action ⇒ Object Also known as: default_action

#

do_the_default_action

Presently, the default action is to show all available songs.

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 314

def do_the_default_action
  show_available_songs(:then_exit)
end

#download_file_at_number(i) ⇒ Object

#

download_file_at_number

Invocation example:

eurodance 62
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 536

def download_file_at_number(i)
  i = i.to_i
  _ = full_dataset?
  hash = {}
  _.each_pair.with_index {|data, index|
    if index == (i-1)
      data = Hash[*data]
      hash.update(data)
    end
  }
  download_remote_file(hash)
end

#download_remote_files(this_dataset = full_dataset?) ) ⇒ Object Also known as: download_remote_file

#

download_remote_files

Use this method when you want to download the remote files.

The input to this method should be a Hash.

Invocation example:

eurodance --download
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 485

def download_remote_files(this_dataset = full_dataset?)
  ::MultimediaParadise.ensure_that_the_output_directory_exists
  store_here = ::MultimediaParadise.output_directory?+return_name_from_class_name+'/'
  mkdir(store_here)
  cd(store_here)
  this_dataset.each_pair {|name_of_the_song, array|
    url = array[1]
    dataset = { name_of_the_song => array }
    _ = dataset
    key = _.keys.first
    name_of_the_group = _[key][0]
    opne
    e '  Now downloading the song '+dodgerblue(name_of_the_song)+
      ' (Group: '+simp(name_of_the_group)+') from the URL '+sfancy(url)
    name_of_the_song = key.to_s.delete('!')
    url = _[key][1]
    release_year = _[key][2].to_s # Need a String.
    # ======================================================================= #
    # Next, we will use youtube-dl to download this.
    # ======================================================================= #
    result = `youtube-dl #{url}`
    use_this_regex = /Merging formats into "(.+)"/
    result.scan(use_this_regex)
    e 'Working on the song '+simp(name_of_the_song)+' next.'
    new_file_name = $1.to_s.dup
    # ======================================================================= #
    # The filename has to be sanitized and renamed.
    # ======================================================================= #
    new_file_name = rename_this_file(new_file_name)
    # ======================================================================= #
    # Ok, the file is already a bit sanitized, but we wish to make it even
    # nicer. So, we rename it based on 1) the name of the group, 2) the
    # name of the song and 3) the release year.
    # ======================================================================= #
    extension_name = File.extname(new_file_name)
    _ = name_of_the_group.tr(' ','_')+'-'+name_of_the_song.tr(' ','_')+
        '_Year_'+release_year+extension_name
    mv(new_file_name, _)
    opne rev+'The file name now is `'+sfile(_)+rev+'`, in the '\
         'directory `'+sdir(store_here)+rev+'`.'
  } 
end

#files? ⇒ Boolean

#

files?

This method will return all remote files, aka URLs, in particular to youtube files. The user can then create a playlist from this or batch-download these files.

#

Returns:

  • (Boolean) 


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 155

def files?
  dataset?.values.map {|entry| entry[1] }
end

#generate_homepage ⇒ Object

#

generate_homepage

This will generate a webpage/homepage, by using the links from the genre.

Invocation example:

eurodance --homepage
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 648

def generate_homepage
  _ = '<html><body>'.dup # This will be the return string.
  _ << '<title>'+guess_the_title_based_on_the_yaml_file+
       ' ('+@dataset.keys.size.to_s+' entries)</title>'
  index = 0
  dataset?.each_pair {|name_of_the_song, array|
    index += 1
    name_of_the_group = array.first
    remote_URL = array[1]
    _ << HtmlTags.a(remote_URL,
      description: '('+index.to_s+') '+
                   name_of_the_song+' - '+
                   name_of_the_group
    )
    _ << "<br>\n"
  }
  _ << '</body></html>'
  # ======================================================================= #
  # We determine into which file we will generate. Since as of October
  # 2020 we will use the general log-directory for the
  # MultimediaParadise project for this.
  # ======================================================================= #
  into = self.class.inspect.to_s.split(':').last.downcase
  into = log_dir?+into+'.html'
  opne "#{rev}Now storing into the file `#{sfile(into)}#{rev}`."
  write_what_into(_, into)
end

#generate_m3u_playlist ⇒ Object

#

generate_m3u_playlist

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 415

def generate_m3u_playlist
  # ======================================================================= #
  # We only need an Array of all URLs.
  # ======================================================================= #
  dataset = return_all_remote_urls
  into = '/Depot/j/'+return_name_from_class_name
  CreateM3uPlaylist.new(dataset, into)
end

#guess_the_title_based_on_the_yaml_file ⇒ Object

#

guess_the_title_based_on_the_yaml_file

This method will try to guess the filename. It may use strings such as:

"/home/Programs/Ruby/2.7.2/lib/ruby/site_ruby/2.7.0/multimedia_paradise/yaml/genres/trance.yml"
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 615

def guess_the_title_based_on_the_yaml_file
  File.basename(@yaml_file).sub(/\.yml$/,'')
end

#load_yaml_dataset ⇒ Object

#

load_yaml_dataset

This method will also make @dataset available.

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 134

def load_yaml_dataset
  _ = yaml_file?
  begin # Must protect it because the yaml file may be buggy and raise Psych::SyntaxError.
    @dataset = YAML.load_file(_)
  rescue ArgumentError # This clause happens when syck raises an error.
    @dataset = File.read(_)
  rescue Exception => error
    opne 'An error happened on line '+__LINE__.to_s+'.'
    pp error
    pp error.class
  end
  sanitize_yaml_dataset # Must sanitize it.
end

#menu(i = commandline_arguments?) ) ⇒ Object

#

menu (menu tag)

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 180

def menu(i = commandline_arguments?)
  if i.is_a? Array
    # ===================================================================== #
    # === Must handle input such as "play foo"
    # ===================================================================== #
    if i.last =~ /^\d+$/
      i = [i.join(' ')]
    end
    i.each {|entry| menu(entry) }
  else
    case i.delete('-').downcase # case tag
    # ===================================================================== #
    # === eurodance --download
    # ===================================================================== #
    when /^-?-?download$/,
         '--dl',
         'dl'
      download_remote_files
      exit
    # ===================================================================== #
    # === eurodance --generate-homepage
    #
    # This entry point can be used to generate a small "webpage"
    # with content of the playlist at hand.
    #
    # Invocation example:
    #
    #   trance --html
    #
    # ===================================================================== #
    when /^-?-?generate(_|-)?homepage$/i,
         'genhomepage',
         'homepage',
         'web',
         /^-?-?webpage$/i,
         /^-?-?html$/i
      generate_homepage
      exit
    # ===================================================================== #
    # === trance play 17
    #
    # This entry point allows us to open a specific file at a position
    # and "play" it, e. g. in the browser.
    #
    # Example for this:
    #
    #   trance play 3
    #
    # ===================================================================== #
    when /^play (\d+)/,
         /^open (\d+)/
      require 'open'
      url = obtain_url_from_entry_at_this_position($1.to_s.dup)
      open_in_browser(url)
      exit
    # ===================================================================== #
    # === eurodance --playlist
    # ===================================================================== #
    when '--playlist',
         'playlist',
         '--generate_playlist',
         '--generateplaylist',
         '--generate-playlist',
         'generateplaylist',
         'm3u',
         '--m3u'
      generate_m3u_playlist # trance --generate-playlist
      exit
    # ===================================================================== #
    # === eurodance --only-URLs
    # ===================================================================== #
    when /^-?-?show(_|-)?only(_|-)?the(_|-)?URLs$/i,
         /^-?-?only(_|-)?URLs$/i,
         /^-?-?URLs?$/i # === eurodance --url
      show_only_the_URLs
      exit
    # ===================================================================== #
    # === eurodance --only_names
    # ===================================================================== #
    when /^-?-?only(_|-)?names$/i
      show_only_names
      exit
    # ===================================================================== #
    # === eurodance --file?
    # ===================================================================== #
    when /^-?-?file\??/
      show_the_location_of_the_yaml_file
      exit
    # ===================================================================== #
    # === eurodance --help
    # ===================================================================== #
    when '--help','help','?'
      show_help(:then_exit)
    # ===================================================================== #
    # === eurodance --open
    # ===================================================================== #
    when 'open','OPEN','--open','op','o'
      open_playlist_in_your_editor
      exit
    # ===================================================================== #
    # === trance --reverse-years
    # ===================================================================== #
    when '--reverse-years','reverseyears','--sort-by-years-reverse',
         'sortbyyearsreverse'
      sort_playlist_via_years(:reverse)
      do_the_default_action
    # ===================================================================== #
    # === trance --years
    # ===================================================================== #
    when '--year','--years','--sort','--sort-via-year','--sort-by-years',
         'sortbyyears','years','year','sort','sortviayear'
      sort_playlist_via_years
      do_the_default_action
    # ===================================================================== #
    # === eurodance --overview
    # ===================================================================== #
    when '--overview','overview'
      show_available_songs(:then_exit)
    # ===================================================================== #
    # === eurodance 62
    # ===================================================================== #
    when /^(\d+)$/
      download_file_at_number($1.to_s.dup)
    else
      default_action
    end
  end
end

#name_of_the_genre? ⇒ Boolean

#

name_of_the_genre?

This method will return the genre in use.

#

Returns:

  • (Boolean) 


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 624

def name_of_the_genre?
  _ = self.class.name.to_s
  _ = _.split(':').last if _.include? ':'
  return _.gsub(/The/,'')
end

#obtain_url_from_entry_at_this_position(i) ⇒ Object

#

obtain_url_from_entry_at_this_position

We obtain (and return) the remote URL from this entry.

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 563

def obtain_url_from_entry_at_this_position(i)
  # ======================================================================= #
  # Input must be an Integer. We also must deduct -1 because Ruby Array
  # start to count at 0.
  # ======================================================================= #
  i = i.to_i - 1
  _ = full_dataset?
  keys = _.keys
  url = _[keys[i]][1]
  return url
end

#open_playlist_in_your_editor ⇒ Object

#

open_playlist_in_your_editor

Invoke such as by doing:

trance --open
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 123

def open_playlist_in_your_editor
  _ = yaml_file?
  _ = 'bluefish '+_
 esystem(_)
end

#opnn(i = NAMESPACE) ⇒ Object

#

opnn

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 633

def opnn(i = NAMESPACE)
  super(i)
end

#rename_this_file(i) ⇒ Object

#

rename_this_file

This will rename the file and sanitize it, then return the new file name.

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 465

def rename_this_file(i)
  old_filename = i.to_s.dup
  new_filename = old_filename.delete('(').delete(')').
                 gsub(/ - /,'-').tr(' ','_').delete('!')
  mv(old_filename, new_filename)
  return new_filename
end

#reset ⇒ Object

#

reset (reset tag)

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 74

def reset
  super()
  # ======================================================================= #
  # === @dataset
  # ======================================================================= #
  @dataset = nil
  infer_the_namespace
end

#return_all_remote_urls ⇒ Object

#

return_all_remote_urls

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 441

def return_all_remote_urls
  dataset = dataset?
  dataset.map! {|key, inner_array|
    inner_array[1] # This is the URL.
  }
  return dataset
end

#return_dataset_from_one_random_song ⇒ Object

#

return_dataset_from_one_random_song

This is sort of a debug-method. What we do here is that we will randomly return one element from the main dataset.

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 455

def return_dataset_from_one_random_song
  return dataset?.to_a.sample(1).to_h
end

#return_name_from_class_name(i = @namespace) ⇒ Object

#

return_name_from_class_name

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 552

def return_name_from_class_name(i = @namespace)
  _ = @namespace.to_s.downcase
  _ = _.split(':').last if _.include? ':'
  return _
end

#run ⇒ Object

#

run (run tag)

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 679

def run
  menu
end

#sanitize_yaml_dataset ⇒ Object

#

sanitize_yaml_dataset

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 162

def sanitize_yaml_dataset
  if @dataset.is_a? String
    # ===================================================================== #
    # Do the manual parsing on your own if it is a String.
    # ===================================================================== #
    _ = @dataset.split(N)
    _.reject! {|entry| entry.start_with? '#' }
    _.reject! {|entry| entry.strip.empty? }
    # ===================================================================== #
    # This is presently unfinished. I may continue working on this if
    # I happen to use a plain textfile rather than a yaml file.
    # ===================================================================== #
  end
end

#set_dataset(i) ⇒ Object

#

set_dataset

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 434

def set_dataset(i)
  @dataset = i
end

#set_yaml_file(i) ⇒ Object

#

set_yaml_file

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 86

def set_yaml_file(i)
  @yaml_file = i
  # ======================================================================= #
  # === Initialize the yaml dataset
  # ======================================================================= #
  load_yaml_dataset # Must re-initialize @dataset whenever set_input() is called.
end

#show_available_songs(use_this_dataset = @dataset, shall_we_exit = :then_exit) ⇒ Object

#

show_available_songs

#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 321

def show_available_songs(
    use_this_dataset = @dataset,
    shall_we_exit    = :then_exit
  )
  if use_this_dataset == :then_exit
    use_this_dataset = @dataset
    shall_we_exit = :then_exit
  end
  case shall_we_exit
  when :then_exit
    shall_we_exit = true
  end
  # ======================================================================= #
  # Work with a pointer variable.
  # ======================================================================= #
  _ = use_this_dataset # We assume that this will always be a Hash.
  n_entries = _.keys.size
  opne simp(n_entries.to_s)+' entries were registered in the yaml file.'
  e
  _.each_pair.with_index {|inner_hash, index|
    key, _array = *inner_hash
    url = _array[1]
    index += 1
    group_name = _array[0]
    release_year = _array[2].to_s
    group_and_release_year = ' ('+group_name+', '+release_year+')'
    e slateblue(index.to_s.rjust(3)+') ')+simp(key)+dodgerblue(group_and_release_year)
    # ===================================================================== #
    # Next line displays the URL
    # ===================================================================== #
    left_pad = 7
    e powderblue((' ' * left_pad)+url) # Left-padded URL.
  }; e
  exit if shall_we_exit
end

#show_help(shall_we_exit = true, show_opn = false) ⇒ Object

#

show_help (help tag)

To invoke this, try:

eurodance --help
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 583

def show_help(
    shall_we_exit = true,
    show_opn      = false
  )
  if shall_we_exit == :then_exit
    shall_we_exit = true
  end
  e
  opnn if show_opn; e '  --download           # to download all '+name_of_the_genre?+
                      ' songs locally'
  opnn if show_opn; e '  --generate-homepage  # to generate a homepage'
  opnn if show_opn; e '  --m3u                # to generate a .m3u playlist (a file)'
  opnn if show_opn; e '  --open               # to open the respective playlist in your editor'
  opnn if show_opn; e '  --overview           # to show which entries are registered'
  opnn if show_opn; e '  --years              # to sort via years (most recent year will come last)'
  opnn if show_opn; e '  --file?              # to show where the yaml file is stored'
  opnn if show_opn; e '  --reverse-years      # to sort via years in a reverse manner '\
                      '(most recent year will come first)'
  opnn if show_opn; e '  play 17              # open the track at position 17 in the browser'
  opnn if show_opn; e '                       # so that you can play it'
  e
  exit if shall_we_exit
end

#show_only_names ⇒ Object

#

show_only_names

To invoke this, do:

eurodance --onlynames
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 391

def show_only_names
  @dataset.each_pair {|key, dataset|
    e slateblue(key.to_s)
  }
end

#show_only_the_URLs ⇒ Object

#

show_only_the_URLs

To invoke this, do:

eurodance --only-URLs
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 405

def show_only_the_URLs
  @dataset.each_pair {|key, dataset|
    url = dataset[1]
    e slateblue(url.to_s)
  }
end

#show_the_location_of_the_yaml_file ⇒ Object

#

show_the_location_of_the_yaml_file

To invoke this method, try:

eurodance --file?
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 111

def show_the_location_of_the_yaml_file
  e sfile(@yaml_file)
end

#sort_playlist_via_years(sort_mode_to_use = :normal) ⇒ Object

#

sort_playlist_via_years

This method sorts the playlist via the years. We can work on the You can try this method like this:

trance --sort-by-years
#


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 366

def sort_playlist_via_years(
    sort_mode_to_use = :normal
  )
  if sort_mode_to_use == :normal
    _ = @dataset.sort_by {|key, array|
      value = array[2]
      value = 0 if value.nil? # "Rescue".
      value
    }
  else
    _ = @dataset.sort_by {|key, array|
      -array[2]
    }
  end
  @dataset = Hash[_]
end

#yaml_file? ⇒ Boolean

#

yaml_file?

This will always point at the main yaml file.

#

Returns:

  • (Boolean) 


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# File 'lib/multimedia_paradise/audio/genres/genre.rb', line 99

def yaml_file?
  @yaml_file
end