Fix LocationAttachment (#395)

Set `LocationAttachment.address` instead of `latitude` and `longitude`, when no GPS coords are supplied. Fixes #392

fbchat/graphql.py

@@ -143,13 +143,17 @@ def graphql_to_extensible_attachment(a):
             _type = target["__typename"]
             if _type == "MessageLocation":
                 url = story.get("url")
-                latitude, longitude = get_url_parameter(
-                    get_url_parameter(url, "u"), "where1"
-                ).split(", ")
+                address = get_url_parameter(get_url_parameter(url, "u"), "where1")
+                try:
+                    latitude, longitude = [float(x) for x in address.split(", ")]
+                    address = None
+                except ValueError:
+                    latitude, longitude = None, None
                 rtn = LocationAttachment(
                     uid=int(story["deduplication_key"]),
-                    latitude=float(latitude),
-                    longitude=float(longitude),
+                    latitude=latitude,
+                    longitude=longitude,
+                    address=address,
                 )
                 media = story.get("media")
                 if media and media.get("image"):

fbchat/models.py

@@ -444,7 +444,9 @@ class ShareAttachment(Attachment):
 
 
 class LocationAttachment(Attachment):
-    #: Latidute of the location
+    """Latitude and longitude OR address is provided by Facebook"""
+
+    #: Latitude of the location
     latitude = None
     #: Longitude of the location
     longitude = None
@@ -456,12 +458,15 @@ class LocationAttachment(Attachment):
     image_height = None
     #: URL to Bing maps with the location
     url = None
+    # Address of the location
+    address = None
 
-    def __init__(self, latitude=None, longitude=None, **kwargs):
+    def __init__(self, latitude=None, longitude=None, address=None, **kwargs):
         """Represents a user location"""
         super(LocationAttachment, self).__init__(**kwargs)
         self.latitude = latitude
         self.longitude = longitude
+        self.address = address
 
 
 class LiveLocationAttachment(LocationAttachment):