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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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