Create a models package, add template file suffix

Also, add AngularJS

archiver/models/__init__.py

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+# Create your models here.
+from archive import Archive
+from song import Song
+from playlist import Playlist
+from feed import Feed

archiver/models/archive.py

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+from django.db import models
+
+"""
+This is the archive model for the archiving backend of Melodia.
+It's purpose is to control the high-level functionality of managing
+multiple archives of music. It is different from a playlist both conceptually
+and practically - an archive describes a group of files, while a playlist
+describes a group of songs.
+In this way, you back up archives of music - you don't back up the songs in a
+playlist. Additionally, you may want to re-organize your music to use a
+cleaner directory structure - a playlist doesn't care about this.
+"""
+
+class Archive (models.Model):
+	class Meta:
+		app_label = 'archiver'
+
+	"""
+	The archive model itself, and all functions used to interact with it.
+	The archive is built up from a grouping of songs, and the functions
+	that are used to interact with many songs at a single time. The archive
+	for example allows you to re-organize a specific set of music files into
+	a cleaner directory structure.
+	The archive is given a folder to use as its root directory - it finds all
+	music files under there, and takes control of them from there.
+	"""
+
+	import datetime
+
+	name        = models.CharField(max_length = 64)
+
+	#Note that we're not using FilePathField since this is actually a folder
+	root_folder = models.CharField(max_length = 255)
+
+	#We've removed the reference to "songs" - instead define it as a ForeignKey,
+	#and do lookups via song_set
+
+	#Backup settings
+	backup_location  = models.CharField(max_length = 255, default = None, null = True)
+	backup_frequency = models.IntegerField(default = 604800) #1 week in seconds
+	last_backup      = models.DateTimeField(default = datetime.datetime.now) #Note that this by default will be the time the archive was instantiated
+
+	def _scan_filesystem(self):
+		"Scan the archive's root filesystem and add any new songs without adding metadata, delete songs that exist no more"
+		#This method is implemented since the other scan methods all need to use the same code
+		#DRY FTW
+		import re, os, itertools
+		from django.core.exceptions import ObjectDoesNotExist
+		from Melodia.melodia_settings import SUPPORTED_AUDIO_EXTENSIONS
+		from Melodia.melodia_settings import HASH_FUNCTION as hash
+
+		_regex = '|'.join(( '.*' + ext + '$' for ext in SUPPORTED_AUDIO_EXTENSIONS))
+		regex  = re.compile(_regex, re.IGNORECASE)
+
+		#It's hackish, but far fewer transactions to delete everything first, and add it all back.
+		#If we get interrupted, just re-run it.
+		song_set.all().delete()
+
+		#Add new songs
+		for dirname, dirnames, filenames in os.walk(self.root_folder):
+			#For each filename that is supported
+			for filename in itertools.ifilter(lambda filename: re.match(regex, filename), filenames):
+				rel_url = os.path.join(dirname, filename)
+				full_url = os.path.abspath(rel_url)
+				new_song = Song(url = full_url)
+				new_song.save()
+				song_set.add(new_song)
+
+	def _update_song_metadata(self, use_echonest = False, progress_callback = lambda x, y: None):
+		"""Scan every song in this archive (database only) and make sure all songs are correct
+		The progress_callback function is called with the current song being operated on first, and the total songs second."""
+		#This method operates only on the songs that are in the database - if you need to make
+		#sure that new songs are added, use the _scan_filesystem() method in addition
+		total_songs  = song_set.count()
+
+		for index, song in enumerate(song_set.all()):
+			song.populate_metadata(use_echonest = use_echonest)
+			song.save()
+			progress_callback(index + 1, total_songs)
+
+	def _needs_backup(self):
+		"Check if the current archive is due for a backup"
+		import datetime
+
+		prev_backup_time = self.last_backup
+		current_time     = datetime.datetime.now()
+
+		delta = current_time - prev_backup_time
+		if delta > datetime.timedelta(seconds = self.backup_frequency):
+			return True
+		else:
+			return False
+
+	def quick_scan(self):
+		"Scan this archive's root folder and make sure that	all songs are in the database."
+		#This is a quick scan - only validate whether or not songs should exist in the database
+
+		self._scan_filesystem()
+
+	def scan(self):
+		"Scan this archive's root folder and make sure any local metadata are correct."
+		#This is a longer scan - validate whether songs should exist, and use local data to update
+		#the database
+
+		self._scan_filesystem()
+		self._update_song_metadata()
+
+	def deep_scan(self):
+		"Scan this archive's root folder and make sure that	all songs are in the database, and use EchoNest to update metadata as necessary"
+		#This is a very long scan - validate whether songs should exist, and use Echonest to make sure
+		#that metadata is as accurate as possible.
+		self._scan_filesystem()
+		self._update_song_metadata(use_echonest = True)
+
+	
+	def run_backup(self, force_backup = False):
+		"Backup the current archive"
+		if force_backup or self._needs_backup():
+			import subprocess
+			subprocess.call(['rsync', '-av', self.root_folder, self.backup_location])
+
+	def reorganize(self, format_string, progress_function = lambda w, x, y, z: None, dry_run = False):
+		"""Reorganize a music archive using a specified format string.
+		Recognized escape characters:
+		%a - Artist Name                       %A - Album Name
+		%d - Disc Number                       %e - Number of discs
+		%f - Current Filename (with extension) %g - Current Filename (no extension)
+		%n - Track Number                      %o - Number of tracks on disc
+		%y - Album year
+
+		Note that all organization takes place relative to the archive's root folder.
+		The progress_function is called with the current song number as its first argument, total songs as its second,
+		current song URL as the third argument, and new URL as the fourth.
+		"""
+		import os, shutil, errno
+
+		total_songs = song_set.count()
+
+		for index, song in enumerate(song_set.all()):
+			_current_filename              = os.path.basename(song.url)
+			_current_filename_no_extension = os.path.splitext(_current_filename)[0]
+
+			_release_year = song.release_date.year
+
+			new_location = format_string.replace("%a", song.artist)\
+										.replace("%A", song.album)\
+										.replace("%d", str(song.disc_number))\
+										.replace("%e", str(song.disc_total))\
+										.replace("%f", _current_filename)\
+										.replace("%g", _current_filename_no_extension)\
+										.replace("%n", str(song.track_number))\
+										.replace("%o", str(song.track_total))\
+										.replace("%y", str(_release_year))
+
+			new_url = os.path.join(self.root_folder, new_location)
+
+			progress_function(index + 1, total_songs, song.url, new_url)
+
+			if not dry_run:
+				new_folder = os.path.dirname(new_url)
+				try:
+					#`mkdir -p` functionality
+					if not os.path.isdir(new_folder):
+						os.makedirs(new_folder)
+
+					#Safely copy the file - don't 'move' it, but do a full 'copy' 'rm'
+					#This way if the process is ever interrupted, we have an unaltered copy
+					#of the file.
+					shutil.copyfile(song.url, new_url)
+					shutil.copystat(song.url, new_url)
+
+					#Notify the database about the new URL
+					old_url  = song.url
+					song.url = new_url
+					song.save()
+
+					#Actually remove the file since all references to the original location have been removed
+					os.remove(old_url)
+
+				except OSError as exc:
+					if exc.errno == errno.EEXIST and os.path.isdir(new_folder):
+						#This is safe to skip - makedirs() is complaining about a folder already existing
+						pass
+					else: raise
+
+				except IOError as exc:
+					#shutil error - likely that folders weren't specified correctly
+					raise

archiver/models/feed.py

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+from django.db import models
+import datetime, time
+import feedparser
+
+from archive import Archive
+
+
+"""
+The "Feed" model describes a podcast feed using any of RSS, Atom, etc.
+Backend handling is processed by 'feedparser', we just download all the podcast files,
+control how many are stored, etc. The feed is intended to belong to an archive - 
+this way the feed is backed up automatically (and we don't have the podcast spewing
+files everywhere).
+It is important to note - the "max_episodes" field regulates how many episodes are
+stored and backed up. A value < 1 indicates storing all episodes.
+"""
+
+_audio_type_mime_types = [
+		u'audio/mpeg'
+		]
+
+_audio_type_mime_types_string = "\n".join(_audio_type_mime_types)
+
+class Feed(models.Model):
+	class Meta:
+		app_label = 'archiver'
+
+	url = models.URLField()
+	name = models.CharField(max_length = 64)
+	max_episodes = models.IntegerField(default = 0) # Default store everything
+	current_episodes = models.IntegerField(default = 0)
+	last_episode = models.DateTimeField(default = datetime.datetime(1970, 1, 1))
+	parent_archive = models.ForeignKey(Archive)
+
+	def _get_episode_time(episode):
+		"""
+		Get a datetime.datetime object of a podcast episode's published time.
+		Expects a specific element from feed_object.entries.
+		"""
+		t = time.mktime(episode.published_parsed)
+		return datetime.datetime.fromtimestamp(t)
+
+	def _calculate_new_episodes(feed_object):
+		"""
+		Calculate how many new episodes there are of a podcast (and consequently
+		how many we need to remove).
+		"""
+		num_episodes = 0
+
+		#feed_object.entries starts at the most recent
+		for episode in feed_object.entries:
+			if _get_episode_time(episode) > last_episode:
+				num_episodes += 1
+
+			#Don't set ourselves up to download any more than max_episodes
+			if num_episodes > max_episodes and max_episodes > 0:
+				return num_episodes
+
+		return num_episodes
+
+	def _download_podcast(feed_object, num_episodes = -1):
+		"""
+		Update this podcast with episodes from the server copy. The feed_object is a reference to a
+		feedparser object so we don't have to redownload a feed multiple times.
+		"""
+
+		num_episodes = _calculate_new_episodes()
+
+		#feedparser-specific way of building the list
+		new_episodes = feed_object.entries[:num_episodes]
+
+		for episode in new_episodes:
+			episode_audio_links = [link for link in episodes['links']
+											if link['type'] in _audio_type_mime_types_string]
+
+			print episode_audio_links
+
+				
+	def sync_podcast(dry_run = False, forbid_delete = False):
+		"""
+		Update the podcast with episodes from the server copy. If dry_run, don't actually download episodes,
+		but show what changes would have been made (implies forbid_delete). If forbid_delete, download all new
+		episodes, ignoring the max_episodes count.
+		"""
+		pass

archiver/models/listfield.py

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+from django.db import models
+import re, itertools
+
+class IntegerListField(models.TextField):
+	class Meta:
+		app_label = 'archiver'
+
+	"""
+	Store a list of integers in a database string.
+	Format is: 
+	[<int_1>, <int_2>, <int_3>, ... , <int_n>]
+	"""
+
+	description = "Field type for storing lists of integers."
+
+	__metaclass__ = models.SubfieldBase
+
+	def __init__(self, *args, **kwargs):
+		super(IntegerListField, self).__init__(*args, **kwargs)
+
+
+	#Convert database to python
+	def to_python(self, value):
+		if isinstance(value, list):
+			return value
+
+		#Process a database string
+		
+		#Validation first
+		if len(value) <= 0:
+			return []
+
+		if value[0] != '[' or value[-1] != ']':
+			raise ValidationError("Invalid input to parse a list of integers!")
+
+		#Note that any non-digit string is a valid separator
+		_csv_regex = "[0-9]"
+		csv_regex  = re.compile(_csv_regex)
+
+		#Synonymous to:
+		#string_list = filter(None, csv_regex.findall(value))
+		string_list  = itertools.ifilter(None, csv_regex.findall(value))
+		value_list   = [int(i) for i in string_list]
+
+		return value_list
+
+	#Convert python to database
+	def get_prep_value(self, value):
+		if not isinstance(value, list):
+			raise ValidationError("Invalid list given to put in database!")
+
+		separator_string = ", "
+
+		list_elements = separator_string.join(map(str, value))
+
+		return "[" + list_elements + "]"

archiver/models/playlist.py

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+from django.db import models
+from django.core.exceptions import ObjectDoesNotExist
+
+from song import Song
+from listfield import IntegerListField
+
+import re
+from warnings import warn
+
+"""
+Playlist model
+Each playlist is a high-level ordering of songs. There really isn't much to a playlist - just its name, and the songs inside it.
+However, we need to have a way to guarantee song order, in addition to re-ordering. A ManyToMany field can't do this.
+As such, a custom IntegerListField is implemented - it takes a python list of ints, converts it to a text field in the DB,
+and then back to a python list. This way, we can guarantee order, and have a song appear multiple times.
+The IntegerListField itself uses the ID of each song as the int in a list. For example, a list of:
+	[1, 3, 5, 17]
+
+Means that the playlist is made up of four songs. The order of the playlist is the song with index 1, 3, 5, and 17.
+Additionally, the ManyToMany field is included to make sure we don't use the global Songs manager - it just seems hackish.
+"""
+
+class Playlist(models.Model):
+	class Meta:
+		app_label = 'archiver'
+
+	"""
+	The Playlist class defines the playlist model and its operations.
+	Currently supported are add, move, and remove operations, as well as exporting to
+	multiple formats.
+	"""
+
+	name       = models.CharField(max_length = 255)
+	song_list = IntegerListField()
+
+	#This is a bit of a backup field, since technically the song PK's are in
+	#the song_order field. However, it might be useful to just get a reference
+	#to the songs in this playlist. Additionally, it's kind of hackish to reference
+	#the global Song manager, rather than something that is specific for this playlist.
+	songs      = models.ManyToManyField(Song)
+
+	def _populate_songs(self):
+		"""
+		Make sure that the 'songs' relation is up-to-date.
+		"""
+		#This operation works by getting the ID's for all songs currently in the playlist,
+		#calculates what we need to add, what we need to remove, and then does it.
+		#As much work as is possible is done on the python side to avoid the DB at all costs.
+		current_song_ids     = [song.id for song in self.songs.all()]
+		current_song_ids_set = set(current_song_ids)
+
+		new_song_ids_set = set(self.song_list)
+
+		remove_set = current_song_ids_set.difference(new_song_ids_set)
+		add_set    = new_song_ids_set.difference(current_song_ids_set)
+
+		for song_id in remove_set:
+			song = self.songs.get(id = song_id)
+			song.remove()
+
+		for song_id in add_set:
+			song = Song.objects.get(id = song_id) #Using the global Songs manager is unavoidable for this one
+			self.songs.add(song)
+
+	def insert(self, position, new_song):
+		"""
+		Insert a new song into the playlist at a specific position.
+		"""
+
+		if not isinstance(new_song, Song):
+			#Not given a song reference, raise an error
+			raise ValidationError("Not given a song reference to insert.")
+			
+		self.songs.add(new_song)
+
+		self.song_list.insert(position, new_song.id)
+
+		self._populate_songs()
+
+	def append(self, new_song):
+		"""
+		Add a new song to the end of the playlist.
+		"""
+		if not isinstance(new_song, Song):
+			#Not given a song reference, raise an error
+			raise ValidationError("Not given a song reference to insert.")
+
+		self.songs.add(new_song)
+
+		self.song_list.append(new_song.id)
+
+		self._populate_songs()
+
+	def move(self, original_position, new_position):
+		"""
+		Move a song from one position to another
+		"""
+		if original_position == new_position:
+			return
+
+		song_id = self.song_list[original_position]
+
+		#This is actually a bit more complicated than it first appears, since the index we're moving to may actually change
+		#when we remove an item.
+		if new_position < original_position:
+			del self.song_list[original_position]
+			self.song_list.insert(new_position, song_id)
+
+		else:
+			del self.song_list[original_position]
+			self.song_list.insert(new_position - 1, song_id) #Account for the list indices shifting down.
+
+		self._populate_songs()
+
+	def remove(self, position):
+		if position > len(self.song_list):
+			return False
+
+		del self.song_list[position]
+
+		self._populate_songs()
+
+	def export(self, playlist_type = "m3u"):
+		"""
+		Export this internal playlist to a file format.
+		Supported formats:
+			-pls
+			-m3u
+		Return value is a string containing the playlist -
+		you can write it to file as you deem necessary.
+		"""
+		if playlist_type == "pls":
+			#Playlist header
+			playlist_string = "[playlist]"
+
+			#Playlist body
+			for index, song_id in enumerate(self.song_list):
+				song = self.songs.get(id = song_id)
+
+				playlist_string += "File" + str(index + 1) + "=" + song.url + "\n"
+				playlist_string += "Title" + str(index + 1) + "=" + song.title + "\n"
+				playlist_string += "Length" + str(index + 1) + "=" + str(song.duration) + "\n"
+
+			#Playlist footer
+			playlist_string += "NumberOfEntries=" + str(len(self.song_list))
+			playlist_string += "Version=2"
+			return playlist_string
+
+		elif playlist_type == "m3u":
+			#Playlist header
+			playlist_string += "#EXTM3U" + "\n"
+
+			#Playlist body
+			for song_id in self.song_list:
+				song = self.songs.get(id = song_id)
+
+				playlist_string += "#EXTINF:" + str(song.duration) + "," + song.artist + " - " + song.title + "\n"
+				playlist_string += song.url + "\n\n"
+
+			return playlist_string
+
+	def _import(self, playlist_string = None):
+		"""
+		Import and convert a playlist into native DB format.
+		This function will return true if the playlist format was recognized, false otherwise.
+		It will return true even if there are errors processing individual songs in the playlist.
+		As a side note - the _import() name is used since python doesn't let
+		you name a function import().
+		"""
+		#TODO: Code playlist importing
+		self.song_list = []
+		if not playlist_string:
+			#Make sure we have a string to operate on.
+			return False
+
+		#Figure out what format we're in
+		if playlist_string[0:7] == "#EXTM3U":
+			#Import m3u format playlist
+			print playlist_string
+
+			#Expected format is "#EXTINF:" followed by the song url on the next line.
+			line_iterator = playlist_string.split("\n").__iter__()
+
+			#In case we end iteration early
+			try:
+				for line in line_iterator:
+
+					if line[0:8] == "#EXTINF:":
+						song_url = line_iterator.next() #Consume the next line
+
+						try:
+							song = Song.objects.get(url = song_url)
+							self.append(song)
+
+						except ObjectDoesNotExist:
+							#The URL of our song could not be found
+							warn("The playlist entry: " + song_url + " could not be found, and has not been added to your playlist.")
+							continue
+
+			#Silently end processing
+			except StopIteration:
+				pass
+
+			return True
+
+		if playlist_string[0:10] == "[playlist]":
+			#Import pls format playlist
+			#This one is a bit simpler - we're just looking for lines that start with "File="
+			pls_regex = re.compile("^File=", re.IGNORECASE)
+
+			for file_line in pls_regex.match(pls_regex, playlist_string):
+				song_url = file_line[5:]
+				try:
+					song = Song.objects.get(url = song_url)
+					self.append(song)
+
+				except ObjectDoesNotExist:
+					#The URL of our song could not be found
+					warn("The playlist entry: " + song_url + " could not be found, and has not been added to your playlist.")
+					continue
+
+			return True
+
+		#If we got here, the playlist format wasn't recognized.
+		return False

archiver/models/song.py

@@ -0,0 +1,162 @@
+from django.db import models
+from Melodia import melodia_settings
+
+from archive import Archive
+
+import datetime
+import os.path
+"""
+The Song model
+Each instance of a Song represents a single music file.
+This database model is used for storing the metadata information about a song,
+and helps in doing sorting etc.
+"""
+
+_default_string = "_UNAVAILABLE_"
+_default_date   = datetime.datetime.now
+_default_int    = -1
+
+_default_rating = 0
+_default_rating_bad       = 1
+_default_rating_ok        = 2
+_default_rating_decent    = 3
+_default_rating_good      = 4
+_default_rating_excellent = 5
+_default_rating_choices = (
+		(_default_rating, 'Default'),
+		(_default_rating_bad, 'Bad'),
+		(_default_rating_ok, 'OK'),
+		(_default_rating_decent, 'Decent'),
+		(_default_rating_good, 'Good'),
+		(_default_rating_excellent, 'Excellent'),
+		)
+
+class Song (models.Model):
+	class Meta:
+		app_label = 'archiver'
+	
+	"""
+	This class defines the fields and functions related to controlling
+	individual music files.
+	Note that the Playlist model depends on this model's PK being an int.
+	"""
+
+	#Standard song metadata
+	title        = models.CharField(max_length = 64, default = _default_string)
+	artist       = models.CharField(max_length = 64, default = _default_string)
+	album        = models.CharField(max_length = 64, default = _default_string)
+	year         = models.IntegerField(default = _default_string)
+	genre        = models.CharField(max_length = 64, default = _default_string)
+	bpm          = models.IntegerField(default = _default_int)
+	disc_number  = models.IntegerField(default = _default_int)
+	disc_total   = models.IntegerField(default = _default_int)
+	track_number = models.IntegerField(default = _default_int)
+	track_total  = models.IntegerField(default = _default_int)
+	comment      = models.CharField(default = _default_string, max_length=512)
+
+	#File metadata
+	bit_rate         = models.IntegerField(default = _default_int)
+	duration         = models.FloatField(default = _default_int)
+	add_date         = models.DateField(default = _default_date)
+	echonest_song_id = models.CharField(max_length = 64, default = _default_string)
+	url              = models.CharField(max_length = 255)
+	file_hash        = melodia_settings.HASH_RESULT_DB_TYPE
+	file_size        = models.IntegerField(default = _default_int)
+
+	#Melodia metadata
+	play_count = models.IntegerField(default = _default_int)
+	skip_count = models.IntegerField(default = _default_int)
+	rating     = models.IntegerField(default = _default_int, choices = _default_rating_choices)
+
+	#Link back to the archive this comes from
+	parent_archive = models.ForeignKey(Archive)
+
+	#Set a static reference to the rating options
+	RATING_DEFAULT   = _default_rating
+	RATING_BAD       = _default_rating_bad
+	RATING_OK        = _default_rating_ok
+	RATING_DECENT    = _default_rating_decent
+	RATING_GOOD      = _default_rating_good
+	RATING_EXCELLENT = _default_rating_excellent
+
+	def _get_full_url(self):
+		"Combine this song's URL with the URL of its parent"
+		return os.path.join(parent_archive.root_folder, self.url)
+
+	def _file_not_changed(self):
+		"Make sure the hash for this file is valid - return True if it has not changed."
+		#Overload the hash function with whatever Melodia as a whole is using
+		from Melodia.melodia_settings import HASH_FUNCTION as hash
+
+		#Check if there's a hash entry - if there is, the song may not have changed,
+		#and we can go ahead and return
+		if self.file_hash != None:
+			song_file = open(self._get_full_url, 'rb')
+			current_file_hash = hash(song_file.read())
+
+			if current_file_hash == self.file_hash:
+				#The song data hasn't changed at all, we don't need to do anything
+				return True
+
+		return False
+
+	def _grab_file_info(self):
+		"Populate file-based metadata about this song."
+		import os
+		#Overload the hash function with whatever Melodia as a whole is using
+		from Melodia.melodia_settings import HASH_FUNCTION as hash
+		
+		file_handle = open(self._get_full_url, 'rb')
+		
+		self.file_hash = hash(file_handle.read())
+		self.file_size = os.stat(self._get_full_url).st_size
+
+	def _grab_metadata_echonest(self):
+		"Populate this song's metadata using EchoNest"
+		pass
+
+	def _grab_metadata_local(self):
+		"Populate this song's metadata using what is locally available"
+		#Use mutagen to get the song metadata
+		import mutagen
+
+		try:
+			#Use mutagen to scan local metadata - don't update anything else (i.e. play_count)
+			track             = mutagen.File(self._get_full_url)
+			track_easy        = mutagen.File(self._get_full_url, easy=True)
+
+			self.title        = track_easy['title'][0]  or _default_string
+			self.artist       = track_easy['artist'][0] or _default_string
+			self.album_artist = track_easy['albumartist'][0] or _default_string
+			self.album        = track_easy['album'][0]  or _default_string
+			self.year         = int(track_easy['date'][0][0:4]) or _default_int
+			self.genre        = track_easy["genre"][0] or _default_string
+
+			self.disc_number  = int(track_easy['discnumber'][0].split('/')[0]) or _default_int
+			self.disc_total   = int(track_easy['discnumber'][0].split('/')[-1]) or _default_int
+			self.track_number = int(track_easy['track_number'][0].split('/')[0]) or _default_int
+			self.track_total  = int(track_easy['track_number'][0].split('/')[-1])  or _default_int
+			self.comment      = track_easy['comment'][0] or _default_string
+
+			self.bit_rate         = track.info.bitrate or _default_int
+			self.duration         = track.info.length or _default_int
+
+		except:
+			#Couldn't grab the local data
+			return False
+
+	def populate_metadata(self, use_echonest = False):
+		"Populate the metadata of this song (only if file hash has changed), and save the result."
+		if self._file_not_changed():
+			return
+
+		#If we've gotten to here, we do actually need to fully update the metadata
+		if use_echonest:
+			self._grab_echonest()
+
+		else:
+			self._grab_metadata_local()
+			
+	def convert(self, output_location, output_format, progress_func = lambda x, y: None):
+		"Convert a song to a new format."
+		pass #Need to get pydub code in place

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+w;)r.pop()[0].element.remove()}var i;if(!(i=p.match(d)))throw Error("Expected ngOptions in form of '_select_ (as _label_)? for (_key_,)?_value_ in _collection_' but got '"+p+"'.");var j=c(i[2]||i[1]),k=i[4]||i[6],l=i[5],m=c(i[3]||""),n=c(i[2]?i[1]:k),t=c(i[7]),r=[[{element:f,label:""}]];s&&(a(s)(e),s.removeClass("ng-scope"),s.remove());f.html("");f.bind("change",function(){e.$apply(function(){var a,c=t(e)||[],d={},h,i,j,m,p,s;if(o){i=[];m=0;for(s=r.length;m<s;m++){a=r[m];j=1;for(p=a.length;j<p;j++)if((h=
+a[j].element)[0].selected)h=h.val(),l&&(d[l]=h),d[k]=c[h],i.push(n(e,d))}}else h=f.val(),h=="?"?i=q:h==""?i=null:(d[k]=c[h],l&&(d[l]=h),i=n(e,d));g.$setViewValue(i)})});g.$render=h;e.$watch(h)}if(j[1]){for(var l=j[0],t=j[1],o=f.multiple,p=f.ngOptions,s=!1,v,C=u(Y.createElement("option")),z=u(Y.createElement("optgroup")),w=C.clone(),j=0,A=h.children(),r=A.length;j<r;j++)if(A[j].value==""){v=s=A.eq(j);break}l.init(t,s,w);if(o&&(f.required||f.ngRequired)){var B=function(a){t.$setValidity("required",
+!f.required||a&&a.length);return a};t.$parsers.push(B);t.$formatters.unshift(B);f.$observe("required",function(){B(t.$viewValue)})}p?m(e,h,t):o?k(e,h,t):i(e,h,t,l)}}}}],Vd=["$interpolate",function(a){var c={addOption:w,removeOption:w};return{restrict:"E",priority:100,compile:function(d,e){if(x(e.value)){var g=a(d.text(),!0);g||e.$set("value",d.text())}return function(a,d,e){var i=d.parent(),k=i.data("$selectController")||i.parent().data("$selectController");k&&k.databound?d.prop("selected",!1):k=
+c;g?a.$watch(g,function(a,c){e.$set("value",a);a!==c&&k.removeOption(c);k.addOption(a)}):k.addOption(e.value);d.bind("$destroy",function(){k.removeOption(e.value)})}}}}],Wd=I({restrict:"E",terminal:!0});(ca=N.jQuery)?(u=ca,v(ca.fn,{scope:va.scope,controller:va.controller,injector:va.injector,inheritedData:va.inheritedData}),bb("remove",!0),bb("empty"),bb("html")):u=K;Za.element=u;(function(a){v(a,{bootstrap:rb,copy:V,extend:v,equals:ga,element:u,forEach:n,injector:sb,noop:w,bind:Ua,toJson:da,fromJson:pb,
+identity:na,isUndefined:x,isDefined:y,isString:B,isFunction:H,isObject:L,isNumber:Ra,isElement:gc,isArray:E,version:id,isDate:oa,lowercase:A,uppercase:ma,callbacks:{counter:0}});ta=lc(N);try{ta("ngLocale")}catch(c){ta("ngLocale",[]).provider("$locale",Zc)}ta("ng",["ngLocale"],["$provide",function(a){a.provider("$compile",Db).directive({a:jd,input:cc,textarea:cc,form:kd,script:Sd,select:Ud,style:Wd,option:Vd,ngBind:vd,ngBindHtmlUnsafe:xd,ngBindTemplate:wd,ngClass:yd,ngClassEven:Ad,ngClassOdd:zd,ngCsp:Dd,
+ngCloak:Bd,ngController:Cd,ngForm:ld,ngHide:Ld,ngInclude:Fd,ngInit:Gd,ngNonBindable:Hd,ngPluralize:Id,ngRepeat:Jd,ngShow:Kd,ngSubmit:Ed,ngStyle:Md,ngSwitch:Nd,ngSwitchWhen:Od,ngSwitchDefault:Pd,ngOptions:Td,ngView:Rd,ngTransclude:Qd,ngModel:qd,ngList:sd,ngChange:rd,required:dc,ngRequired:dc,ngValue:ud}).directive(mb).directive(ec);a.provider({$anchorScroll:uc,$browser:wc,$cacheFactory:xc,$controller:Bc,$document:Cc,$exceptionHandler:Dc,$filter:Rb,$interpolate:Ec,$http:Vc,$httpBackend:Wc,$location:Ic,
+$log:Jc,$parse:Nc,$route:Qc,$routeParams:Rc,$rootScope:Sc,$q:Oc,$sniffer:Tc,$templateCache:yc,$timeout:$c,$window:Uc})}])})(Za);u(Y).ready(function(){jc(Y,rb)})})(window,document);angular.element(document).find("head").append('<style type="text/css">@charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak{display:none;}ng\\:form{display:block;}</style>');

web/views/templates/base.html

@@ -31,12 +31,13 @@ List of block elements in this page:
 		{# General scripts #}
 		{% block scripts %}
 		<script type="text/javascript" src="{{ STATIC_URL }}js/jquery.min.js"></script>
-		<script type="text/javascript" src="{{ STATIC_URL }}js/jquery-ui.min.js"></script>
 		<script type="text/javascript" src="{{ STATIC_URL }}js/bootstrap.min.js"></script>
+		<script type="text/javascript" src="{{ STATIC_URL }}js/angular.min.js"></script>
+		<script type="text/javascript" src="{{ STATIC_URL }}js/ui-bootstrap-0.3.0.min.js"></script>
 
 			{% block global_scripts %}
 			<script type="text/javascript">
-			{% include global_scripts.js %}
+			{% include "global_scripts.js" %}
 			</script>
 			{% endblock %}