Change how goodread import writes reviews

- adds published date
 - broadcasts review imports
 - completes review and shelve actions as it goes
 - some small connector fixes

 fixes #247

bookwyrm/connectors/abstract_connector.py

@@ -2,14 +2,16 @@
 from abc import ABC, abstractmethod
 from dateutil import parser
 import pytz
+from urllib3.exceptions import ProtocolError
 import requests
+from requests import HTTPError
 
 from django.db import transaction
 
 from bookwyrm import models
 
 
-class ConnectorException(Exception):
+class ConnectorException(HTTPError):
     ''' when the connector can't do what was asked '''
 
 
@@ -155,9 +157,11 @@ class AbstractConnector(ABC):
         ''' for creating a new book or syncing with data '''
         book = update_from_mappings(book, data, self.book_mappings)
 
+        author_text = []
         for author in self.get_authors_from_data(data):
             book.authors.add(author)
-        book.author_text = ', '.join(a.display_name for a in book.authors.all())
+            author_text += author.display_name
+        book.author_text = ', '.join(author_text)
         book.save()
 
         if not update_cover:
@@ -287,12 +291,15 @@ def get_date(date_string):
 
 def get_data(url):
     ''' wrapper for request.get '''
-    resp = requests.get(
-        url,
-        headers={
-            'Accept': 'application/json; charset=utf-8',
-        },
-    )
+    try:
+        resp = requests.get(
+            url,
+            headers={
+                'Accept': 'application/json; charset=utf-8',
+            },
+        )
+    except ProtocolError:
+        raise ConnectorException()
     if not resp.ok:
         resp.raise_for_status()
     data = resp.json()