Extend stops to DACH-region

models.py

@@ -37,7 +37,8 @@ VERKEHRSMITTEL_OPTIONEN = [
 
 
 class Stop(db.Model):
-    """A boardable public-transport stop ("Haltestelle") in Austria.
+    """A boardable public-transport stop ("Haltestelle") in Austria, Germany
+    or Switzerland (DACH).
 
     Sourced from OpenStreetMap; see scripts/fetch_stops.py and stops_import.py.
     """
@@ -52,6 +53,9 @@ class Stop(db.Model):
     # lowercased, accent-folded copy of name for diacritic-insensitive search
     name_normalized = db.Column(db.String(200), nullable=False, index=True)
     stop_type = db.Column(db.String(20), nullable=False, default="other")
+    # ISO 3166-1 alpha-2 of the fetch query that found this stop (AT/DE/CH) -
+    # disambiguates same-named stops across borders (several "Hauptbahnhof").
+    country = db.Column(db.String(2), nullable=False, default="AT")
     municipality = db.Column(db.String(120))
     latitude = db.Column(db.Float, nullable=False)
     longitude = db.Column(db.Float, nullable=False)