bgneal@48: """
bgneal@48: import_old_mp3.py - For importing mp3 data from the older version of this
bgneal@48: website.
bgneal@48: 
bgneal@48: """
bgneal@48: import datetime
bgneal@89: import json
bgneal@48: 
bgneal@48: from django.core.management.base import LabelCommand
bgneal@48: from django.utils.html import linebreaks
bgneal@48: 
bgneal@48: from mp3.models import Collection, Song
bgneal@48: 
bgneal@48: 
bgneal@48: class Command(LabelCommand):
bgneal@48:     args = '<filename filename ...>'
bgneal@48:     help = 'Imports older mp3 & mp3 sets in JSON format'
bgneal@48: 
bgneal@48:     collections = {}
bgneal@48: 
bgneal@48:     def handle_label(self, filename, **options):
bgneal@48:         """
bgneal@48:         Process the file of older mp3 & mp3 sets in JSON. Convert to the new
bgneal@48:         model scheme.
bgneal@48: 
bgneal@48:         """
bgneal@48:         with open(filename, 'rb') as f:
bgneal@48:             items = json.load(f)
bgneal@48: 
bgneal@48:         for item in items:
bgneal@48:             if item['model'] == 'band.mp3_set':
bgneal@48:                 self.process_mp3_set(item)
bgneal@48: 
bgneal@48:         for item in items:
bgneal@48:             if item['model'] == 'band.mp3':
bgneal@48:                 self.process_mp3(item)
bgneal@48: 
bgneal@48:     def process_mp3_set(self, item):
bgneal@48: 
bgneal@48:         fields = item['fields']
bgneal@48: 
bgneal@48:         description = linebreaks(fields['text'].strip())
bgneal@48: 
bgneal@48:         coll = Collection(
bgneal@48:                 id=item['pk'],
bgneal@48:                 title=fields['title'].strip(),
bgneal@48:                 date_added=datetime.datetime.strptime(fields['date'], '%Y-%m-%d'),
bgneal@48:                 description=description)
bgneal@48: 
bgneal@48:         coll.save()
bgneal@48:         self.collections[coll.pk] = coll
bgneal@48: 
bgneal@48:     def process_mp3(self, item):
bgneal@48: 
bgneal@48:         fields = item['fields']
bgneal@48: 
bgneal@48:         song = Song(
bgneal@48:                 id=item['pk'],
bgneal@48:                 title=fields['title'].strip(),
bgneal@48:                 description=fields['desc'].strip(),
bgneal@48:                 file=fields['file'],
bgneal@48:                 collection=self.collections[fields['mp3_set']],
bgneal@48:                 )
bgneal@48:         song.save()