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import os
import shutil
import uuid
from celery import shared_task
from celery.utils.log import get_task_logger
from django.conf import settings
from django.shortcuts import get_object_or_404
from .pipeline.dataset import Dataset
from .pipeline.factories import create_formatter, create_labels, create_writer
from .pipeline.services import ExportApplicationService
from data_export.models import ExportedExample
from projects.models import Member, Project
logger = get_task_logger(__name__)
def create_collaborative_dataset(project: Project, dirpath: str, confirmed_only: bool, formatters, writer):
is_text_project = project.is_text_project
if confirmed_only:
examples = ExportedExample.objects.confirmed(project)
else:
examples = ExportedExample.objects.filter(project=project)
labels = create_labels(project, examples)
dataset = Dataset(examples, labels, is_text_project)
service = ExportApplicationService(dataset, formatters, writer)
filepath = os.path.join(dirpath, f"all.{writer.extension}")
service.export(filepath)
def create_individual_dataset(project: Project, dirpath: str, confirmed_only: bool, formatters, writer):
is_text_project = project.is_text_project
members = Member.objects.filter(project=project)
for member in members:
if confirmed_only:
examples = ExportedExample.objects.confirmed(project, user=member.user)
else:
examples = ExportedExample.objects.filter(project=project)
labels = create_labels(project, examples, member.user)
dataset = Dataset(examples, labels, is_text_project)
service = ExportApplicationService(dataset, formatters, writer)
filepath = os.path.join(dirpath, f"{member.username}.{writer.extension}")
service.export(filepath)
@shared_task
def export_dataset(project_id, file_format: str, confirmed_only=False):
project = get_object_or_404(Project, pk=project_id)
dirpath = os.path.join(settings.MEDIA_ROOT, str(uuid.uuid4()))
os.makedirs(dirpath, exist_ok=True)
formatters = create_formatter(project, file_format)
writer = create_writer(file_format)
if project.collaborative_annotation:
create_collaborative_dataset(project, dirpath, confirmed_only, formatters, writer)
else:
create_individual_dataset(project, dirpath, confirmed_only, formatters, writer)
zip_file = shutil.make_archive(dirpath, "zip", dirpath)
shutil.rmtree(dirpath)
return zip_file