catalogue/management/commands/importbooks.py

   1 import os
   2
   3 from django.core.management.base import BaseCommand
   4 from django.core.management.color import color_style
   5 from optparse import make_option
   6 from slughifi import slughifi
   7 import dcparser
   8
   9 from catalogue.models import Book, Tag
  10
  11
  12 class Command(BaseCommand):
  13     option_list = BaseCommand.option_list + (
  14         make_option('--verbosity', action='store', dest='verbosity', default='1',
  15             type='choice', choices=['0', '1', '2'],
  16             help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'),
  17     )
  18     help = 'Imports books from the specified directories.'
  19     args = 'directory [directory ...]'
  20
  21     def handle(self, *directories, **options):
  22         from django.db import transaction
  23
  24         self.style = color_style()
  25
  26         verbosity = int(options.get('verbosity', 1))
  27         show_traceback = options.get('traceback', False)
  28
  29         # Start transaction management.
  30         transaction.commit_unless_managed()
  31         transaction.enter_transaction_management()
  32         transaction.managed(True)
  33
  34         for dir_name in directories:
  35             if not os.path.isdir(dir_name):
  36                 print self.style.ERROR("Skipping '%s': not a directory." % dir_name)
  37             else:
  38                 for file_name in os.listdir(dir_name):
  39                     file_path = os.path.join(dir_name, file_name)
  40                     if not os.path.splitext(file_name)[1] == '.xml':
  41                         print self.style.NOTICE("Skipping '%s': not an XML file." % file_path)
  42                         continue
  43                     if verbosity > 1:
  44                         print "Parsing '%s'" % file_path
  45
  46                     book_info = dcparser.parse(file_path)
  47                     book = Book(title=book_info.title, slug=slughifi(book_info.title))
  48                     book.save()
  49
  50                     book_tags = []
  51                     for category in ('kind', 'genre', 'author', 'epoch'):
  52                         tag_name = getattr(book_info, category)
  53                         tag_sort_key = tag_name
  54                         if category == 'author':
  55                             tag_sort_key = tag_name.last_name
  56                             tag_name = ' '.join(tag_name.first_names) + ' ' + tag_name.last_name
  57                         tag, created = Tag.objects.get_or_create(name=tag_name,
  58                             slug=slughifi(tag_name), sort_key=slughifi(tag_sort_key), category=category)
  59                         tag.save()
  60                         book_tags.append(tag)
  61                     book.tags = book_tags
  62
  63
  64         transaction.commit()
  65         transaction.leave_transaction_management()
  66