add web.options, fix #3062 (#3063)

CHANGES/3062.bugfix

@@ -0,0 +1 @@
+fix `UrlDispatcher` has no attribute `add_options`, add `web.options`

aiohttp/web_routedef.py

@@ -6,7 +6,7 @@
 from . import hdrs
 
 
-__all__ = ('RouteDef', 'StaticDef', 'RouteTableDef', 'head', 'get',
+__all__ = ('RouteDef', 'StaticDef', 'RouteTableDef', 'head', 'options', 'get',
  'post', 'patch', 'put', 'delete', 'route', 'view',
  'static')
 
@@ -67,6 +67,10 @@ def head(path, handler, **kwargs):
  return route(hdrs.METH_HEAD, path, handler, **kwargs)
 
 
+def options(path, handler, **kwargs):
+ return route(hdrs.METH_OPTIONS, path, handler, **kwargs)
+
+
 def get(path, handler, *, name=None, allow_head=True, **kwargs):
  return route(hdrs.METH_GET, path, handler, name=name,
  allow_head=allow_head, **kwargs)

aiohttp/web_urldispatcher.py

@@ -906,6 +906,12 @@ def add_head(self, path, handler, **kwargs):
  """
  return self.add_route(hdrs.METH_HEAD, path, handler, **kwargs)
 
+ def add_options(self, path, handler, **kwargs):
+ """
+ Shortcut for add_route with method OPTIONS
+ """
+ return self.add_route(hdrs.METH_OPTIONS, path, handler, **kwargs)
+
  def add_get(self, path, handler, *, name=None, allow_head=True, **kwargs):
  """
  Shortcut for add_route with method GET, if allow_head is true another

tests/test_route_def.py

@@ -42,6 +42,19 @@ async def handler(request):
  assert str(route.url_for()) == '/'
 
 
+def test_options(router):
+ async def handler(request):
+ pass
+
+ router.add_routes([web.options('/', handler)])
+ assert len(router.routes()) == 1
+
+ route = list(router.routes())[0]
+ assert route.handler is handler
+ assert route.method == 'OPTIONS'
+ assert str(route.url_for()) == '/'
+
+
 def test_post(router):
  async def handler(request):
  pass