moviewyrm/bookwyrm/management/commands/generate_preview_images.py

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""" Generate preview images """
from django.core.management.base import BaseCommand
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from bookwyrm import models, preview_images
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# pylint: disable=line-too-long
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class Command(BaseCommand):
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"""Creates previews for existing objects"""
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help = "Generate preview images"
def add_arguments(self, parser):
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parser.add_argument(
"--all",
"-a",
action="store_true",
help="Generates images for ALL types: site, users and books. Can use a lot of computing power.",
)
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# pylint: disable=no-self-use,unused-argument
def handle(self, *args, **options):
"""generate preview images"""
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self.stdout.write(
" | Hello! I will be generating preview images for your instance."
)
if options["all"]:
self.stdout.write(
"🧑‍🎨 ⎨ This might take quite long if your instance has a lot of books and users."
)
self.stdout.write(" | ✧ Thank you for your patience ✧")
else:
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self.stdout.write("🧑‍🎨 ⎨ I will only generate the instance preview image.")
self.stdout.write(" | ✧ Be right back! ✧")
# Site
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self.stdout.write(" → Site preview image: ", ending="")
preview_images.generate_site_preview_image_task.delay()
self.stdout.write(" OK 🖼")
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if options["all"]:
# Users
users = models.User.objects.filter(
local=True,
is_active=True,
)
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self.stdout.write(
" → User preview images ({}): ".format(len(users)), ending=""
)
for user in users:
preview_images.generate_user_preview_image_task.delay(user.id)
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self.stdout.write(".", ending="")
self.stdout.write(" OK 🖼")
# Books
books = models.Book.objects.select_subclasses().filter()
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self.stdout.write(
" → Book preview images ({}): ".format(len(books)), ending=""
)
for book in books:
preview_images.generate_edition_preview_image_task.delay(book.id)
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self.stdout.write(".", ending="")
self.stdout.write(" OK 🖼")
self.stdout.write("🧑‍🎨 ⎨ Im all done! ✧ Enjoy ✧")