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https://github.com/tcsenpai/swingmusic.git
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4302fea0b7
* move album class into mongodb dir * inherit AlbumMethods at DB Initialization level * move album -> db/mongodb * move mongodb classes into separate package
81 lines
1.9 KiB
Python
81 lines
1.9 KiB
Python
"""
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This module creates and initiliazes a MongoDB instance. It also contains the
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`convert_one()` and `conver_many()` methods for converting MongoDB cursors to Python dicts.
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"""
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import json
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import pymongo
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from app.db import AlbumMethods
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from app.db import ArtistMethods
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from app.db import PlaylistMethods
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from app.db import TrackMethods
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from bson import json_util
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class Mongo:
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"""
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The base class for all mongodb classes.
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"""
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def __init__(self, database):
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mongo_uri = pymongo.MongoClient()
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self.db = mongo_uri[database]
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class MongoAlbums(Mongo, AlbumMethods):
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def __init__(self):
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super(MongoAlbums, self).__init__("ALICE_ALBUMS")
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self.collection = self.db["ALL_ALBUMS"]
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class MongoArtists(Mongo, ArtistMethods):
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def __init__(self):
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super(MongoArtists, self).__init__("ALICE_ARTISTS")
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self.collection = self.db["ALL_ARTISTS"]
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class MongoPlaylists(Mongo, PlaylistMethods):
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def __init__(self):
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super(MongoPlaylists, self).__init__("ALICE_PLAYLISTS")
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self.collection = self.db["ALL_PLAYLISTS"]
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class MongoTracks(Mongo, TrackMethods):
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def __init__(self):
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super(MongoTracks, self).__init__("ALICE_MUSIC_TRACKS")
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self.collection = self.db["ALL_TRACKS"]
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# ====================================================================== #
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# cursor convertion methods
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def convert_one(song):
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"""
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Converts a single mongodb cursor to a json object.
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"""
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json_song = json.dumps(song, default=json_util.default)
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loaded_song = json.loads(json_song)
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return loaded_song
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def convert_many(array):
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"""
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Converts a list of mongodb cursors to a list of json objects.
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"""
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songs = []
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for song in array:
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json_song = json.dumps(song, default=json_util.default)
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loaded_song = json.loads(json_song)
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songs.append(loaded_song)
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return songs
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