remove tag generation from viewset

docs/api-guide/schemas.md

@@ -223,21 +223,7 @@ Tags can be used to group logical operations. Each tag name in the list MUST be
 ---
 #### Django REST Framework generates tags automatically with the following logic:
 
-1. Extract tag from `ViewSet`. 
-    1. If `ViewSet` name ends with `ViewSet`, or `View`; remove it.
-    2. Convert class name into lowercase words & join each word using a `-`(dash). 
-    
-    Examples:
-    
-        ViewSet Class   |   Tags
-        ----------------|------------
-        User            |   ['user']	 
-        UserView        |   ['user']	 
-        UserViewSet     |   ['user']	
-        PascalCaseXYZ   |   ['pascal-case-xyz']
-        IPAddressView   |   ['ip-address']
-
-2. If View is not an instance of ViewSet, tag name will be first element from the path. Also, any `_` in path name will be replaced by a `-`.
+Tag name will be first element from the path. Also, any `_` in path name will be replaced by a `-`.
 Consider below examples.
 
 Example 1: Consider a user management system. The following table will illustrate the tag generation logic.

rest_framework/schemas/openapi.py

@@ -15,7 +15,6 @@ from rest_framework import exceptions, renderers, serializers
 from rest_framework.compat import uritemplate
 from rest_framework.fields import _UnvalidatedField, empty
 
-from ..utils.formatting import camelcase_to_spaces
 from .generators import BaseSchemaGenerator
 from .inspectors import ViewInspector
 from .utils import get_pk_description, is_list_view
@@ -578,18 +577,6 @@ class AutoSchema(ViewInspector):
         if self._tags:
             return self._tags
 
-        # Extract tag from viewset name
-        # UserProfileViewSet      tags = [user-profile]
-        # UserProfileView         tags = [user-profile]
-        # UserProfile             tags = [user-profile]
-        if hasattr(self.view, 'action'):
-            name = self.view.__class__.__name__
-            if name.endswith('ViewSet'):
-                name = name[:-7]
-            elif name.endswith('View'):
-                name = name[:-4]
-            return [camelcase_to_spaces(name).lower().replace(' ', '-')]
-
         # First element of a specific path could be valid tag. This is a fallback solution.
         # PUT, PATCH, GET(Retrieve), DELETE:        /user_profile/{id}/       tags = [user-profile]
         # POST, GET(List):                          /user_profile/            tags = [user-profile]

tests/schemas/test_openapi.py

@@ -699,14 +699,15 @@ class TestOperationIntrospection(TestCase):
         assert 'format' not in properties['ip']
 
     def test_overridden_tags(self):
-        class ExampleStringTagsViewSet(views.ExampleTagsViewSet):
+        class ExampleStringTagsViewSet(views.ExampleGenericAPIView):
             schema = AutoSchema(tags=['example1', 'example2'])
 
-        router = routers.SimpleRouter()
-        router.register('test', ExampleStringTagsViewSet, basename="test")
-        generator = SchemaGenerator(patterns=router.urls)
+        url_patterns = [
+            url(r'^test/?$', ExampleStringTagsViewSet.as_view()),
+        ]
+        generator = SchemaGenerator(patterns=url_patterns)
         schema = generator.get_schema(request=create_request('/'))
-        assert schema['paths']['/test/{id}/']['get']['tags'] == ['example1', 'example2']
+        assert schema['paths']['/test/']['get']['tags'] == ['example1', 'example2']
 
     def test_overridden_get_tags_method(self):
         class MySchema(AutoSchema):
@@ -730,32 +731,6 @@ class TestOperationIntrospection(TestCase):
         assert schema['paths']['/example/new/']['get']['tags'] == ['tag1', 'tag2']
         assert schema['paths']['/example/old/']['get']['tags'] == ['tag2', 'tag3']
 
-    def test_auto_generated_viewset_tags(self):
-        class ExampleIPViewSet(views.ExampleTagsViewSet):
-            pass
-
-        class ExampleXYZView(views.ExampleTagsViewSet):
-            pass
-
-        class Example(views.ExampleTagsViewSet):
-            pass
-
-        class PascalCaseXYZTestIp(views.ExampleTagsViewSet):
-            pass
-
-        router = routers.SimpleRouter()
-        router.register('test1', ExampleIPViewSet, basename="test1")
-        router.register('test2', ExampleXYZView, basename="test2")
-        router.register('test3', Example, basename="test3")
-        router.register('test4', PascalCaseXYZTestIp, basename="test4")
-
-        generator = SchemaGenerator(patterns=router.urls)
-        schema = generator.get_schema(request=create_request('/'))
-        assert schema['paths']['/test1/{id}/']['get']['tags'] == ['example-ip']
-        assert schema['paths']['/test2/{id}/']['get']['tags'] == ['example-xyz']
-        assert schema['paths']['/test3/{id}/']['get']['tags'] == ['example']
-        assert schema['paths']['/test4/{id}/']['get']['tags'] == ['pascal-case-xyz-test-ip']
-
     def test_auto_generated_apiview_tags(self):
         class RestaurantAPIView(views.ExampleGenericAPIView):
             pass

tests/schemas/views.py

@@ -137,14 +137,3 @@ class ExampleValidatedAPIView(generics.GenericAPIView):
                                          url='http://localhost', uuid=uuid.uuid4(), ip4='127.0.0.1', ip6='::1',
                                          ip='192.168.1.1')
         return Response(serializer.data)
-
-
-class ExampleTagsViewSet(GenericViewSet):
-    serializer_class = ExampleSerializer
-
-    def retrieve(self, request, *args, **kwargs):
-        serializer = self.get_serializer(integer=33, string='hello', regex='foo', decimal1=3.55,
-                                         decimal2=5.33, email='a@b.co',
-                                         url='http://localhost', uuid=uuid.uuid4(), ip4='127.0.0.1', ip6='::1',
-                                         ip='192.168.1.1')
-        return Response(serializer.data)