[FEATURE] Added 'authors' metadata support

[ANOMALY] Fixed buggy behaviour of query type 'fields'

MatInit.py

@@ -10,10 +10,6 @@ os.environ.setdefault("DJANGO_HSTORE_GLOBAL_REGISTER", "False")
 from node.models import *
 
 
-# Node.objects.get(id=26514).children.all().make_metadata_filterable()
-# exit()
-
-
 # Reset: all data
 
 tables_to_empty = [

gargantext_web/api.py

@@ -428,10 +428,10 @@ class NodesChildrenQueries(APIView):
         # TODO: date_trunc (psql) -> index also
 
         # groupping
+        if retrieve['type'] == 'aggregates':
             authorized_aggregates = {'count': func.count(Node.id)}
             for field_name in fields_names:
                 if field_name not in authorized_aggregates:
-                # query = query.group_by(text(field_name))
                     query = query.group_by('"%s"' % (field_name, ))
 
         # sorting

parsing/FileParsers/PubmedFileParser.py

@@ -25,13 +25,20 @@ class PubmedFileParser(FileParser):
                 "publication_year"  : 'MedlineCitation/DateCreated/Year',
                 "publication_month" : 'MedlineCitation/DateCreated/Month',
                 "publication_day"   : 'MedlineCitation/DateCreated/Day',
+                "authors"           : 'MedlineCitation/Article/AuthorList',
             }
             for key, path in metadata_path.items():
                 try:
-                    node = xml_article.find(path)
-                    metadata[key] = node.text
+                    xml_node = xml_article.find(path)
+                    if key == 'authors':
+                        metadata[key] = ', '.join([
+                            xml_author.find('ForeName').text + ' ' + xml_author.find('LastName').text
+                            for xml_author in xml_node
+                        ])
+                    else:
+                        metadata[key] = xml_node.text
                 except:
-                    metadata[key] = ""
+                    pass
             metadata_list.append(metadata)
         # return the list of metadata
         return metadata_list