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from typing import Iterable, Optional
import json
from chocula.util import clean_str
from chocula.common import DirectoryLoader
from chocula.database import DirectoryInfo, HomepageUrl
class EzbLoader(DirectoryLoader):
"""
CSV Columns:
"""
source_slug = "ezb"
def open_file(self) -> Iterable:
return open(self.config.ezb.filepath, 'r')
def parse_record(self, row) -> Optional[DirectoryInfo]:
if not row:
return None
row = json.loads(row)
info = DirectoryInfo(
directory_slug=self.source_slug,
issne=row.get('issne'),
issnp=row.get('issnp'),
custom_id=row['ezb_id'],
name=clean_str(row['title']),
publisher=clean_str(row.get('publisher')),
)
info.extra = dict()
for k in ('ezb_color', 'subjects', 'keywords', 'zdb_id',
'first_volume', 'first_issue', 'first_year',
'appearance', 'costs'):
if row.get(k):
info.extra[k] = row[k]
url = HomepageUrl.from_url(row.get('url'))
if url:
info.homepage_urls.append(url)
return info
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