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
   7 from catalogue.models import Book
   8
   9
  10 class Command(BaseCommand):
  11     option_list = BaseCommand.option_list + (
  12         make_option('--verbosity', action='store', dest='verbosity', default='1',
  13             type='choice', choices=['0', '1', '2'],
  14             help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'),
  15     )
  16     help = 'Imports books from the specified directories.'
  17     args = 'directory [directory ...]'
  18
  19     def handle(self, *directories, **options):
  20         from django.db import transaction
  21
  22         self.style = color_style()
  23
  24         verbosity = int(options.get('verbosity', 1))
  25         show_traceback = options.get('traceback', False)
  26
  27         # Start transaction management.
  28         transaction.commit_unless_managed()
  29         transaction.enter_transaction_management()
  30         transaction.managed(True)
  31
  32         for dir_name in directories:
  33             if not os.path.isdir(dir_name):
  34                 print self.style.ERROR("Skipping '%s': not a directory." % dir_name)
  35             else:
  36                 for file_name in os.listdir(dir_name):
  37                     file_path = os.path.join(dir_name, file_name)
  38                     if not os.path.splitext(file_name)[1] == '.xml':
  39                         print self.style.NOTICE("Skipping '%s': not an XML file." % file_path)
  40                         continue
  41                     if verbosity > 0:
  42                         print "Parsing '%s'" % file_path
  43
  44                     Book.from_xml_file(file_path)
  45
  46         transaction.commit()
  47         transaction.leave_transaction_management()
  48