bgneal@527: """
bgneal@527: dlwgetcat - a management command to produce a bash script that wgets all the
bgneal@527: files in a given category.
bgneal@527: 
bgneal@527: """
bgneal@527: import os.path
bgneal@527: 
bgneal@527: from django.core.management.base import LabelCommand, CommandError
bgneal@527: from django.template.loader import render_to_string
bgneal@685: from django.utils.text import slugify
bgneal@527: from django.contrib.sites.models import Site
bgneal@527: from django.conf import settings
bgneal@527: 
bgneal@527: from downloads.models import Category, Download
bgneal@527: 
bgneal@527: 
bgneal@527: class Command(LabelCommand):
bgneal@527:     help = ("Produce on standard output a bash script that wgets all the files"
bgneal@527:             " in a category. The files are downloaded with a slugified name.")
bgneal@684: 
bgneal@527:     args = "category-slug"
bgneal@527: 
bgneal@527:     def handle_label(self, slug, **options):
bgneal@527:         """
bgneal@527:         Render a template using the downloads in a given category and send it to
bgneal@527:         stdout.
bgneal@527: 
bgneal@527:         """
bgneal@527:         try:
bgneal@527:             category = Category.objects.get(slug=slug)
bgneal@527:         except Category.DoesNotExist:
bgneal@527:             raise CommandError("category slug '%s' does not exist" % slug)
bgneal@527: 
bgneal@527:         downloads = Download.public_objects.filter(category=category).order_by(
bgneal@527:                 'title').select_related()
bgneal@527: 
bgneal@527:         # Create new destination names for the files since the uploaders often
bgneal@527:         # give the files terrible names. The new names will be slugified
bgneal@527:         # versions of the titles, with the same extension.
bgneal@527: 
bgneal@527:         for dl in downloads:
bgneal@527:             ext = os.path.splitext(dl.file.name)[1]
bgneal@527:             dl.dest_filename = slugify(dl.title) + ext
bgneal@527: 
bgneal@527:         output = render_to_string('downloads/commands/wget_cat.html', {
bgneal@527:             'downloads': downloads,
bgneal@528:             'domain': Site.objects.get_current().domain,
bgneal@528:             'MEDIA_URL': settings.MEDIA_URL,
bgneal@527:             })
bgneal@527: 
bgneal@874:         self.stdout.write(output)