+import re
+from urllib.request import urlopen
+from django.apps import apps
+from django.conf import settings
+from django.db import models
+
+class Visits(models.Model):
+ book = models.ForeignKey('catalogue.Book', models.CASCADE)
+ date = models.DateField()
+ views = models.IntegerField()
+ unique_views = models.IntegerField()
+
+ @classmethod
+ def build_month(cls, year, month):
+ Book = apps.get_model('catalogue', 'Book')
+
+ date = f'{year}-{month:02d}-01'
+ url = f'{settings.PIWIK_URL}?date={date}&filter_limit=-1&format=CSV&idSite={settings.PIWIK_SITE_ID}&language=pl&method=Actions.getPageUrls&module=API&period=month&segment=&token_auth={settings.PIWIK_TOKEN}&flat=1'
+ data = urlopen(url).read().decode('utf-16')
+ lines = data.split('\n')[1:]
+ for line in lines:
+ m = re.match('^/katalog/lektura/([^,]+)\.html,', line)
+ if m is not None:
+ slug = m.group(1)
+ _url, uviews, views, _rest = line.split(',', 3)
+ uviews = int(uviews)
+ views = int(views)
+ try:
+ book = Book.objects.get(slug=slug)
+ except Book.DoesNotExist:
+ continue
+ else:
+ cls.objects.update_or_create(
+ book=book, date=date,
+ defaults={'views': views, 'unique_views': uviews}
+ )