2021-08-21 16:47:33 -04:00
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# Copyright 2021 (c) Anna Schumaker.
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#
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# Table: playlists
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# +------ ---+-----------+------+------+
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# | playlistid | plstateid | name | sort |
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# +-------- -+-----------+------+------+
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#
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# Index: playlist_index
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# +--------------------+
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# | name -> playlistid |
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# +--------------------+
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from gi.repository import GObject
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from . import objects
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from . import playlist
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from . import sql
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from . import track
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class UserPlaylist(playlist.Playlist):
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def __init__(self, row, icon_name):
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playlist.Playlist.__init__(self, row, icon_name)
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self._name = row["name"]
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@GObject.Property
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def name(self): return self._name
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class UserTable(playlist.Model):
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def __init__(self):
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playlist.Model.__init__(self, "playlists", "sort")
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def do_create(self):
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sql.execute("CREATE TABLE IF NOT EXISTS playlists "
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"(playlistid INTEGER PRIMARY KEY, "
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" plstateid INTEGER NOT NULL, "
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" name TEXT UNIQUE, "
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" sort TEXT, "
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" FOREIGN KEY (plstateid) REFERENCES playlist_states(plstateid))")
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sql.execute("CREATE INDEX IF NOT EXISTS playlist_index ON playlists(name)")
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self.find("Collection", loop=True)
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self.find("Favorites")
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self.find("New Tracks")
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self.find("Previous")
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self.find("Queued Tracks")
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def do_factory(self, row):
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if row["name"] == "Collection":
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return UserPlaylist(row, "media-playback-start")
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elif row["name"] == "Favorites":
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return UserPlaylist(row, "emmental-favorites")
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elif row["name"] == "New Tracks":
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return UserPlaylist(row, "starred")
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elif row["name"] == "Previous":
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return UserPlaylist(row, "edit-undo")
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elif row["name"] == "Queued Tracks":
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return UserPlaylist(row, "edit-redo")
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return UserPlaylist(row, "audio-x-generic")
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def do_insert(self, plstate, name):
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return sql.execute("INSERT INTO playlists (plstateid, name, sort) "
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"VALUES (?, ?, ?)", [ plstate.rowid, name, name.casefold() ])
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def do_lookup(self, name):
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return sql.execute("SELECT * FROM playlists WHERE name=?", [ name ])
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def find(self, name, loop=False):
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if (res := self.lookup(name)) == None:
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res = self.insert(name, loop=loop)
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return res
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class PlaylistMap(objects.Map):
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def __init__(self, temp=False):
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name = "playlist_map" if temp==False else "temp_playlist_map"
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self.temporary = temp
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objects.Map.__init__(self, name, Table.get, track.Table.get)
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self.lookup_tracks = self.lookup_rhs
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self.lookup_playlists = self.lookup_lhs
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def do_create(self):
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temp = "" if self.temporary == False else "TEMPORARY"
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sql.execute(f"CREATE {temp} TABLE IF NOT EXISTS {self.map_name} "
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"(playlistid INTEGER, "
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" trackid INTEGER, "
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" FOREIGN KEY(playlistid) REFERENCES playlists(playlistid), "
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" FOREIGN KEY(trackid) REFERENCES tracks(trackid), "
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" UNIQUE(playlistid, trackid))")
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def do_insert(self, playlist, track):
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sql.execute(f"INSERT INTO {self.map_name} (playlistid, trackid) "
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"VALUES (?, ?)", [ playlist.rowid, track.rowid ])
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def do_delete(self, playlist, track):
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return sql.execute(f"DELETE FROM {self.map_name} "
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"WHERE playlistid=? AND trackid=?",
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[ playlist.rowid, track.rowid ])
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def do_lookup_rhs(self, playlist):
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return sql.execute(f"SELECT trackid FROM {self.map_name} "
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"WHERE playlistid=?", [ playlist.rowid ])
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def do_lookup_lhs(self, track):
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return sql.execute(f"SELECT playlistid FROM {self.map_name} "
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"WHERE trackid=?", [ track.rowid ])
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def delete_track(self, track):
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for playlist in self.lookup_playlists(track):
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self.delete(playlist, track)
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def delete_playlist(self, playlist):
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for track in self.lookup_tracks(playlist):
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self.delete(playlist, track)
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Table = UserTable()
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Map = PlaylistMap(temp=False)
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TempMap = PlaylistMap(temp=True)
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