Allow empty string as the url_prefix

flask_restless/manager.py

@@ -651,7 +651,12 @@ def create_api_blueprint(self, name, model, methods=READONLY_METHODS,
         # instance
         # TODO what should the second argument here be?
         # TODO should the url_prefix be specified here or in register_blueprint
-        prefix = url_prefix or self.url_prefix or DEFAULT_URL_PREFIX
+        if url_prefix is not None:
+            prefix = url_prefix
+        elif self.url_prefix is not None:
+            prefix = self.url_prefix
+        else:
+            prefix = DEFAULT_URL_PREFIX
         blueprint = Blueprint(name, __name__, url_prefix=prefix)
         add_rule = blueprint.add_url_rule
 

tests/test_manager.py

@@ -220,6 +220,19 @@ def test_url_prefix(self):
         response = self.app.get('/api/person')
         assert response.status_code == 404
 
+    def test_empty_url_prefix(self):
+        """Tests for specifying an empty string as URL prefix at the manager
+        level but not when creating an API.
+
+        """
+        manager = APIManager(self.flaskapp, session=self.session,
+                             url_prefix='')
+        manager.create_api(self.Person)
+        response = self.app.get('/person')
+        assert response.status_code == 200
+        response = self.app.get('/api/person')
+        assert response.status_code == 404
+
     def test_override_url_prefix(self):
         """Tests that a call to :meth:`APIManager.create_api` can
         override the URL prefix provided in the constructor to the
@@ -229,10 +242,15 @@ def test_override_url_prefix(self):
         manager = APIManager(self.flaskapp, session=self.session,
                              url_prefix='/foo')
         manager.create_api(self.Person, url_prefix='/bar')
+        manager.create_api(self.Article, url_prefix='')
         response = self.app.get('/bar/person')
         assert response.status_code == 200
+        response = self.app.get('/article')
+        assert response.status_code == 200
         response = self.app.get('/foo/person')
         assert response.status_code == 404
+        response = self.app.get('/foo/article')
+        assert response.status_code == 404
 
     # # This is a possible feature, but we will not support this for now.
     # def test_append_url_prefix(self):