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spotify-lib-vis
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Trying to get correct artist breakdown in genres 

Counts are off since there are multiple artists on a track.
master
Kevin Mok 7 years ago
parent
98b14b9000
commit
05b5cc404a
3 changed files with 50 additions and 35 deletions
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  1. 49
      spotifyvis/templates/spotifyvis/test_db.html
  2. 20
      spotifyvis/utils.py
  3. 16
      spotifyvis/views.py

49
spotifyvis/templates/spotifyvis/test_db.html
View File

@ -1,31 +1,26 @@
<!DOCTYPE html>
<!DOC
<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]> <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js"> <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Test DB Page</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<script src="https://d3js.org/d3.v5.min.js"></script>
<script>
/* console.log("artists");
d3.json("{% url "get_artist_data" user_secret %}").then(function(data) {
data.forEach(function(d) {
console.log(d.name, d.num_songs);
});
}); */
console.log("genres");
d3.json("{% url "get_genre_data" user_secret %}").then(function(data) {
data.forEach(function(d) {
console.log(d.genre, d.num_songs);
});
});
</script>
</body>
<!--[if gt IE 8]><!-->
<html class="no-js"> <!--<![endif]-->
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Test DB Page</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<script src="https://d3js.org/d3.v5.min.js"></script>
<svg width="960" height="500"></svg>
<script>
console.log("genres");
d3.json("{% url "get_genre_data" user_secret %}").then(function(data) {
data.forEach(function(d) {
console.log(d.genre, d.num_songs);
});
});
</script>
</body>
</html>

20
spotifyvis/utils.py
View File

@ -4,7 +4,7 @@ import math
import pprint
from .models import Artist, User, Track, AudioFeatures
from django.db.models import Count
from django.db.models import Count, Q
from django.http import JsonResponse
from django.core import serializers
import json
@ -317,7 +317,7 @@ def update_artist_genre(headers, artist_obj):
# }}} #
# {{{ #
# get_top_genre {{{ #
def get_top_genre(headers, top_artist_id):
"""Updates the top genre for a track by querying the Spotify API
@ -393,3 +393,19 @@ def process_library_stats(library_stats):
# }}} process_library_stats #
def get_artists_in_genre(user, genre):
"""Return count of artists in genre.
:genre: genre to count artists for.
:returns: dict of artists in the genre along with the number of songs they
have.
"""
artist_counts = (Artist.objects.filter(track__users=user)
.filter(track__genre=genre)
# .annotate(num_songs=Count('track', filter=Q(track__genre=genre)))
.annotate(num_songs=Count('track'))
)
processed_artist_counts = [{'name': artist.name, 'num_songs': artist.num_songs} for artist in artist_counts]
# pprint.pprint(processed_artist_counts)
return processed_artist_counts

16
spotifyvis/views.py
View File

@ -13,7 +13,7 @@ from datetime import datetime
from django.shortcuts import render, redirect
from django.http import HttpResponse, HttpResponseBadRequest, JsonResponse
from django.db.models import Count, Q
from .utils import parse_library, process_library_stats
from .utils import parse_library, process_library_stats, get_artists_in_genre
from .models import User, Track, AudioFeatures, Artist
# }}} imports #
@ -164,7 +164,8 @@ def user_data(request):
def test_db(request):
"""TODO
"""
user_id = "polarbier"
# user_id = "polarbier"
user_id = "35kxo00qqo9pd1comj6ylxjq7"
context = {
'user_secret': User.objects.get(user_id=user_id).user_secret,
}
@ -180,8 +181,9 @@ def get_artist_data(request, user_secret):
user = User.objects.get(user_id=user_secret)
artist_counts = Artist.objects.annotate(num_songs=Count('track',
filter=Q(track__users=user)))
processed_artist_data = [{'name': artist.name, 'num_songs': artist.num_songs} for artist in artist_counts]
return JsonResponse(data=processed_artist_data, safe=False)
processed_artist_counts = [{'name': artist.name,
'num_songs': artist.num_songs} for artist in artist_counts]
return JsonResponse(data=processed_artist_counts, safe=False)
# }}} get_artist_data #
@ -214,12 +216,14 @@ def get_genre_data(request, user_secret):
TODO
"""
user = User.objects.get(user_secret=user_secret)
genre_counts = (Track.objects.filter(users=user)
genre_counts = (Track.objects.filter(users__exact=user)
.values('genre')
.order_by('genre')
.annotate(num_songs=Count('genre'))
)
# pprint.pprint(genre_counts)
for genre_dict in genre_counts:
genre_dict['artists'] = get_artists_in_genre(user, genre_dict['genre'])
pprint.pprint(list(genre_counts))
return JsonResponse(data=list(genre_counts), safe=False)
# }}} get_genre_data #
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