def get_by_id(aid: int):
article = Article()
entry, err = db.get_article_by_aid(aid)
if not entry:
return article
article.id = entry['article_id']
article.title = entry['title']
article.authors = entry['authors']
article.abstract = entry['abstract']
article.entries = []
entries = db.get_entries_by_aid(aid)
for item in entries:
article.journals.append(item['journal_id'])
article.entries.append((item['link'], item['journal_name']))
for journal in article.journals:
fields = db.get_field_by_jid(journal)
for field in fields:
article.fields.add(field)
return article
