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from typing import Iterable, Optional
import csv
from chocula.util import clean_str
from chocula.common import DirectoryLoader
from chocula.database import DirectoryInfo, HomepageUrl
class RoadLoader(DirectoryLoader):
"""
CSV Columns:
- ISSN
- ISSN-L
- Short Title
- Title
- Publisher
- URL1
- URL2
- Region
- Lang1
- Lang2
"""
source_slug = "road"
def open_file(self) -> Iterable:
return csv.DictReader(open(self.config.ROAD_FILE), delimiter='\t',
fieldnames=("ISSN", "ISSN-L", "Short Title", "Title", "Publisher", "URL1", "URL2", "Region", "Lang1", "Lang2")
)
def parse_record(self, row) -> Optional[DirectoryInfo]:
info = DirectoryInfo(
directory_slug=self.source_slug,
raw_issn=row['ISSN-L'],
name=clean_str(row['Short Title']),
publisher=clean_str(row['Publisher']),
langs=[l for l in (row['Lang1'], row['Lang2']) if l],
)
# TODO: region mapping: "Europe and North America"
# TODO: lang mapping: already alpha-3
# homepages
for url in [u for u in (row['URL1'], row['URL2']) if u]:
homepage = HomepageUrl.from_url(url)
if homepage:
info.homepage_urls.append(homepage)
return info
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