moviewyrm/bookwyrm/goodreads_import.py

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''' handle reading a csv from goodreads '''
import csv
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from requests import HTTPError
from bookwyrm import outgoing
from bookwyrm.tasks import app
from bookwyrm.models import ImportJob, ImportItem
from bookwyrm.status import create_notification
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# TODO: remove or increase once we're confident it's not causing problems.
MAX_ENTRIES = 500
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def create_job(user, csv_file):
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''' check over a csv and creates a database entry for the job'''
job = ImportJob.objects.create(user=user)
for index, entry in enumerate(list(csv.DictReader(csv_file))[:MAX_ENTRIES]):
if not all(x in entry for x in ('ISBN13', 'Title', 'Author')):
raise ValueError("Author, title, and isbn must be in data.")
ImportItem(job=job, index=index, data=entry).save()
return job
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def start_import(job):
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''' initalizes a csv import job '''
result = import_data.delay(job.id)
job.task_id = result.id
job.save()
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@app.task
def import_data(job_id):
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''' does the actual lookup work in a celery task '''
job = ImportJob.objects.get(id=job_id)
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try:
results = []
for item in job.items.all():
try:
item.resolve()
except HTTPError:
pass
if item.book:
item.save()
results.append(item)
# shelves book and handles reviews
outgoing.handle_imported_book(job.user, item)
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else:
item.fail_reason = "Could not find a match for book"
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item.save()
finally:
create_notification(job.user, 'IMPORT', related_import=job)