Merge pull request #643 from OpenKnowledgeMaps/interface-changes-export-backend

Interface changes export backend

Author: Konstiman

server/workers/api/src/apis/export.py

@@ -6,6 +6,7 @@
 from bibtexparser.bibdatabase import BibDatabase
 import dateutil.parser as parser
 import pytz
+import re
 
 export_ns = Namespace("export", description="metadata export API operations")
 
@@ -20,15 +21,33 @@ def parse_date(date):
         parsed_date["day"] = str(dt.day)
     return parsed_date
 
+def create_authorfield(authors_objects):
+    authors = []
+    for ao in authors_objects:
+        if "lastName" in ao:
+            author = ao["lastName"]
+        if "lastName" in ao and "firstName" in ao:
+            author = "{lastName}, {firstName}".format(**ao)
+        authors.append(author)
+    authorstring = " and ".join(authors)
+    return authorstring
+
 def transform2bibtex(metadata):
     # TODO: add mapping from resulttype to ARTICLETYPE
     # possible published_in parser
     # field renaming, e.g. paper_abstract to abstract
     # choose correct fields, e.g. author_string for author
     # use different field for ID
     title = metadata.get("title", "")
-    author = metadata.get("authors", "")
+    try:
+        author = create_authorfield(metadata.get("authors_objects", []))
+    except Exception:
+        author = metadata.get("authors", "")
     doi = metadata.get("doi", "")
+    try:
+        doi = re.sub("https://|http://|dx.doi.org/|doi.org/", "", doi)
+    except Exception:
+        pass
     id = metadata.get("id", "")
     published_in = metadata.get("published_in", "")
     url = metadata.get("list_link", {}).get("address", "")
@@ -44,9 +63,12 @@ def transform2bibtex(metadata):
         "ID": id
     }
     if "year" in metadata:
-        parsed_date = parse_date(metadata.get("year", ""))
-        for k,v in parsed_date.items():
-            fields[k] = v
+        try:
+            parsed_date = parse_date(metadata.get("year", ""))
+            for k,v in parsed_date.items():
+                fields[k] = v
+        except Exception:
+            fields["year"] = ""
     else:
         fields["year"] = ""