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OpenAPI: Ported docstring operation description from CoreAPI inspector. (#6898)

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This commit is contained in:
Yann Savary 2019-11-06 21:52:02 +01:00 committed by Carlton Gibson
parent becb962160
commit 7c3477dcda
5 changed files with 100 additions and 61 deletions
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48
rest_framework/schemas/coreapi.py
View File

@ -1,26 +1,18 @@
import re
import warnings
from collections import Counter, OrderedDict
from urllib import parse
from django.db import models
from django.utils.encoding import force_str, smart_text
from django.utils.encoding import force_str
from rest_framework import exceptions, serializers
from rest_framework.compat import coreapi, coreschema, uritemplate
from rest_framework.settings import api_settings
from rest_framework.utils import formatting
from .generators import BaseSchemaGenerator
from .inspectors import ViewInspector
from .utils import get_pk_description, is_list_view
# Used in _get_description_section()
# TODO: ???: move up to base.
header_regex = re.compile('^[a-zA-Z][0-9A-Za-z_]*:')
# Generator #
def common_path(paths):
split_paths = [path.strip('/').split('/') for path in paths]
@ -397,44 +389,6 @@ class AutoSchema(ViewInspector):
description=description
)
def get_description(self, path, method):
"""
Determine a link description.
This will be based on the method docstring if one exists,
or else the class docstring.
"""
view = self.view
method_name = getattr(view, 'action', method.lower())
method_docstring = getattr(view, method_name, None).__doc__
if method_docstring:
# An explicit docstring on the method or action.
return self._get_description_section(view, method.lower(), formatting.dedent(smart_text(method_docstring)))
else:
return self._get_description_section(view, getattr(view, 'action', method.lower()), view.get_view_description())
def _get_description_section(self, view, header, description):
lines = [line for line in description.splitlines()]
current_section = ''
sections = {'': ''}
for line in lines:
if header_regex.match(line):
current_section, seperator, lead = line.partition(':')
sections[current_section] = lead.strip()
else:
sections[current_section] += '\n' + line
# TODO: SCHEMA_COERCE_METHOD_NAMES appears here and in `SchemaGenerator.get_keys`
coerce_method_names = api_settings.SCHEMA_COERCE_METHOD_NAMES
if header in sections:
return sections[header].strip()
if header in coerce_method_names:
if coerce_method_names[header] in sections:
return sections[coerce_method_names[header]].strip()
return sections[''].strip()
def get_path_fields(self, path, method):
"""
Return a list of `coreapi.Field` instances corresponding to any

46
rest_framework/schemas/inspectors.py
View File

@ -3,9 +3,13 @@ inspectors.py # Per-endpoint view introspection
See schemas.__init__.py for package overview.
"""
import re
from weakref import WeakKeyDictionary
from django.utils.encoding import smart_text
from rest_framework.settings import api_settings
from rest_framework.utils import formatting
class ViewInspector:
@ -15,6 +19,9 @@ class ViewInspector:
Provide subclass for per-view schema generation
"""
# Used in _get_description_section()
header_regex = re.compile('^[a-zA-Z][0-9A-Za-z_]*:')
def __init__(self):
self.instance_schemas = WeakKeyDictionary()
@ -62,6 +69,45 @@ class ViewInspector:
def view(self):
self._view = None
def get_description(self, path, method):
"""
Determine a path description.
This will be based on the method docstring if one exists,
or else the class docstring.
"""
view = self.view
method_name = getattr(view, 'action', method.lower())
method_docstring = getattr(view, method_name, None).__doc__
if method_docstring:
# An explicit docstring on the method or action.
return self._get_description_section(view, method.lower(), formatting.dedent(smart_text(method_docstring)))
else:
return self._get_description_section(view, getattr(view, 'action', method.lower()),
view.get_view_description())
def _get_description_section(self, view, header, description):
lines = [line for line in description.splitlines()]
current_section = ''
sections = {'': ''}
for line in lines:
if self.header_regex.match(line):
current_section, separator, lead = line.partition(':')
sections[current_section] = lead.strip()
else:
sections[current_section] += '\n' + line
# TODO: SCHEMA_COERCE_METHOD_NAMES appears here and in `SchemaGenerator.get_keys`
coerce_method_names = api_settings.SCHEMA_COERCE_METHOD_NAMES
if header in sections:
return sections[header].strip()
if header in coerce_method_names:
if coerce_method_names[header] in sections:
return sections[coerce_method_names[header]].strip()
return sections[''].strip()
class DefaultSchema(ViewInspector):
"""Allows overriding AutoSchema using DEFAULT_SCHEMA_CLASS setting"""

3
rest_framework/schemas/openapi.py
View File

@ -17,8 +17,6 @@ from .generators import BaseSchemaGenerator
from .inspectors import ViewInspector
from .utils import get_pk_description, is_list_view
# Generator
class SchemaGenerator(BaseSchemaGenerator):
@ -94,6 +92,7 @@ class AutoSchema(ViewInspector):
operation = {}
operation['operationId'] = self._get_operation_id(path, method)
operation['description'] = self.get_description(path, method)
parameters = []
parameters += self._get_path_parameters(path, method)

40
tests/schemas/test_openapi.py
View File

@ -77,7 +77,7 @@ class TestOperationIntrospection(TestCase):
method = 'GET'
view = create_view(
views.ExampleListView,
views.DocStringExampleListView,
method,
create_request(path)
)
@ -86,7 +86,8 @@ class TestOperationIntrospection(TestCase):
operation = inspector.get_operation(path, method)
assert operation == {
'operationId': 'listExamples',
'operationId': 'listDocStringExamples',
'description': 'A description of my GET operation.',
'parameters': [],
'responses': {
'200': {
@ -108,23 +109,38 @@ class TestOperationIntrospection(TestCase):
method = 'GET'
view = create_view(
views.ExampleDetailView,
views.DocStringExampleDetailView,
method,
create_request(path)
)
inspector = AutoSchema()
inspector.view = view
parameters = inspector._get_path_parameters(path, method)
assert parameters == [{
'description': '',
'in': 'path',
'name': 'id',
'required': True,
'schema': {
'type': 'string',
operation = inspector.get_operation(path, method)
assert operation == {
'operationId': 'RetrieveDocStringExampleDetail',
'description': 'A description of my GET operation.',
'parameters': [{
'description': '',
'in': 'path',
'name': 'id',
'required': True,
'schema': {
'type': 'string',
},
}],
'responses': {
'200': {
'description': '',
'content': {
'application/json': {
'schema': {
},
},
},
},
},
}]
}
def test_request_body(self):
path = '/'

24
tests/schemas/views.py
View File

@ -29,6 +29,30 @@ class ExampleDetailView(APIView):
pass
class DocStringExampleListView(APIView):
"""
get: A description of my GET operation.
post: A description of my POST operation.
"""
permission_classes = [permissions.IsAuthenticatedOrReadOnly]
def get(self, *args, **kwargs):
pass
def post(self, request, *args, **kwargs):
pass
class DocStringExampleDetailView(APIView):
permission_classes = [permissions.IsAuthenticatedOrReadOnly]
def get(self, *args, **kwargs):
"""
A description of my GET operation.
"""
pass
# Generics.
class ExampleSerializer(serializers.Serializer):
date = serializers.DateField()