apps/catalogue/management/commands/importbooks.py

   1 import os
   2 import sys
   3 from optparse import make_option
   4
   5 from django.core.management.base import BaseCommand
   6 from django.core.management.color import color_style
   7 from django.core.files import File
   8
   9 from catalogue.models import Book
  10
  11
  12 class Command(BaseCommand):
  13     option_list = BaseCommand.option_list + (
  14         make_option('-q', '--quiet', action='store_false', dest='verbose', default=True,
  15             help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'),
  16         make_option('-f', '--force', action='store_true', dest='force', default=False,
  17             help='Print status messages to stdout')
  18     )
  19     help = 'Imports books from the specified directories.'
  20     args = 'directory [directory ...]'
  21
  22     def handle(self, *directories, **options):
  23         from django.db import transaction
  24
  25         self.style = color_style()
  26
  27         verbose = options.get('verbose')
  28         force = options.get('force')
  29         show_traceback = options.get('traceback', False)
  30
  31         # Start transaction management.
  32         transaction.commit_unless_managed()
  33         transaction.enter_transaction_management()
  34         transaction.managed(True)
  35
  36         files_imported = 0
  37         files_skipped = 0
  38
  39         for dir_name in directories:
  40             if not os.path.isdir(dir_name):
  41                 print self.style.ERROR("%s: Not a directory. Skipping." % dir_name)
  42             else:
  43                 for file_name in os.listdir(dir_name):
  44                     file_path = os.path.join(dir_name, file_name)
  45                     file_base, ext = os.path.splitext(file_path)
  46
  47                     # Skip files that are not XML files
  48                     if not ext == '.xml':
  49                         print self.style.NOTICE("%s: Not an XML file. Skipping." % file_path)
  50                         continue
  51
  52                     if verbose > 0:
  53                         print "Parsing '%s'" % file_path
  54                     else:
  55                         sys.stdout.write('.')
  56                         sys.stdout.flush()
  57
  58                     # Import book files
  59                     try:
  60                         book = Book.from_xml_file(file_path, overwrite=force)
  61                         files_imported += 1
  62
  63                         if os.path.isfile(file_base + '.pdf'):
  64                             book.pdf_file.save('%s.pdf' % book.slug, File(file(file_base + '.pdf')))
  65                             if verbose:
  66                                 print "Importing %s.pdf" % file_base
  67                         if os.path.isfile(file_base + '.odt'):
  68                             book.odt_file.save('%s.odt' % book.slug, File(file(file_base + '.odt')))
  69                             if verbose:
  70                                 print "Importing %s.odt" % file_base
  71                         if os.path.isfile(file_base + '.txt'):
  72                             book.txt_file.save('%s.txt' % book.slug, File(file(file_base + '.txt')))
  73                             if verbose:
  74                                 print "Importing %s.txt" % file_base
  75
  76                         book.save()
  77
  78                     except Book.AlreadyExists, msg:
  79                         print self.style.ERROR('%s: Book already imported. Skipping. To overwrite use --force.' %
  80                             file_path)
  81                         files_skipped += 1
  82
  83         # Print results
  84         print
  85         print "Results: %d files imported, %d skipped, %d total." % (
  86             files_imported, files_skipped, files_imported + files_skipped)
  87         print
  88
  89         transaction.commit()
  90         transaction.leave_transaction_management()
  91