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Merge pull request #7964 from edx/hotfix/2015-05-07

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prevent overly nesting _field_data (TNL-2050)
This commit is contained in:
Adam
2015-05-07 16:47:38 -04:00
parent 0866f056c8 2842029a7f
commit 7c59a3af64
14 changed files with 158 additions and 25 deletions
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15
cms/djangoapps/contentstore/views/preview.py
View File

@@ -214,13 +214,18 @@ def _load_preview_module(request, descriptor):
"""
student_data = KvsFieldData(SessionKeyValueStore(request))
if _has_author_view(descriptor):
field_data = CmsFieldData(descriptor._field_data, student_data) # pylint: disable=protected-access
wrapper = partial(CmsFieldData, student_data=student_data)
else:
field_data = LmsFieldData(descriptor._field_data, student_data) # pylint: disable=protected-access
wrapper = partial(LmsFieldData, student_data=student_data)
# wrap the _field_data upfront to pass to _preview_module_system
wrapped_field_data = wrapper(descriptor._field_data) # pylint: disable=protected-access
preview_runtime = _preview_module_system(request, descriptor, wrapped_field_data)
descriptor.bind_for_student(
_preview_module_system(request, descriptor, field_data),
field_data,
request.user.id
preview_runtime,
request.user.id,
[wrapper]
)
return descriptor

17
cms/djangoapps/contentstore/views/tests/test_import_export.py
View File

@@ -427,3 +427,20 @@ class ExportTestCase(CourseTestCase):
self.assertEqual(video_xml.get('youtube_id_1_0'), youtube_id)
finally:
shutil.rmtree(root_dir / name)
def test_export_success_with_custom_tag(self):
"""
Verify that course export with customtag
"""
xml_string = '<impl>slides</impl>'
vertical = ItemFactory.create(
parent_location=self.course.location, category='vertical', display_name='foo'
)
ItemFactory.create(
parent_location=vertical.location,
category='customtag',
display_name='custom_tag_foo',
data=xml_string
)
self.test_export_targz_urlparam()

1
common/djangoapps/terrain/stubs/tests/test_youtube_stub.py
View File

@@ -19,6 +19,7 @@ class StubYouTubeServiceTest(unittest.TestCase):
response = requests.get(self.url + 'unused_url')
self.assertEqual("Unused url", response.content)
@unittest.skip('Failing intermittently due to inconsistent responses from YT. See TE-871')
def test_video_url(self):
response = requests.get(
self.url + 'test_youtube/OEoXaMPEzfM?v=2&alt=jsonc&callback=callback_func'

6
common/lib/xmodule/xmodule/modulestore/tests/django_utils.py
View File

@@ -15,6 +15,7 @@ from django.test import TestCase
from django.test.utils import override_settings
from request_cache.middleware import RequestCache
from courseware.field_overrides import OverrideFieldData # pylint: disable=import-error
from xmodule.contentstore.django import _CONTENTSTORE
from xmodule.modulestore import ModuleStoreEnum
from xmodule.modulestore.django import modulestore, clear_existing_modulestores
@@ -261,6 +262,11 @@ class ModuleStoreTestCase(TestCase):
self.addCleanup(XMODULE_FACTORY_LOCK.disable)
XMODULE_FACTORY_LOCK.enable()
# When testing CCX, we should make sure that
# OverrideFieldData.provider_classes is always reset to `None` so
# that they're recalculated for every test
OverrideFieldData.provider_classes = None
super(ModuleStoreTestCase, self).setUp()
self.store = modulestore()

4
common/lib/xmodule/xmodule/modulestore/xml.py
View File

@@ -14,6 +14,7 @@ from importlib import import_module
from lxml import etree
from path import path
from contextlib import contextmanager
from lazy import lazy
from xmodule.error_module import ErrorDescriptor
from xmodule.errortracker import make_error_tracker, exc_info_to_str
@@ -933,6 +934,9 @@ class LibraryXMLModuleStore(XMLModuleStore):
here manually.
"""
init_dict = {key: getattr(library_descriptor, key) for key in library_descriptor.fields.keys()}
# if set, invalidate '_unwrapped_field_data' so it will be reset
# the next time it will be called
lazy.invalidate(library_descriptor, '_unwrapped_field_data')
# pylint: disable=protected-access
library_descriptor._field_data = inheriting_field_data(InheritanceKeyValueStore(init_dict))

2
common/lib/xmodule/xmodule/tests/__init__.py
View File

@@ -126,7 +126,7 @@ def get_test_system(course_id=SlashSeparatedCourseKey('org', 'course', 'run')):
# So, bind to the same one as the current descriptor.
module_system.descriptor_runtime = descriptor._runtime # pylint: disable=protected-access
descriptor.bind_for_student(module_system, descriptor._field_data, user.id)
descriptor.bind_for_student(module_system, user.id)
return descriptor

6
common/lib/xmodule/xmodule/tests/test_import.py
View File

@@ -281,7 +281,13 @@ class ImportTestCase(BaseCourseTestCase):
due=from_date_string, org=ORG, course=COURSE, url_name=url_name, unicorn_color=unicorn_color
)
descriptor = system.process_xml(start_xml)
# pylint: disable=protected-access
original_unwrapped = descriptor._unwrapped_field_data
LibraryXMLModuleStore.patch_descriptor_kvs(descriptor)
# '_unwrapped_field_data' is reset in `patch_descriptor_kvs`
# pylint: disable=protected-access
self.assertIsNot(original_unwrapped, descriptor._unwrapped_field_data)
compute_inherited_metadata(descriptor)
# Check the course module, since it has inheritance
descriptor = descriptor.get_children()[0]

2
common/lib/xmodule/xmodule/tests/test_library_content.py
View File

@@ -60,7 +60,7 @@ class LibraryContentTest(MixedSplitTestCase):
sub_module_system = get_test_system(course_id=module.location.course_key)
sub_module_system.get_module = get_module
sub_module_system.descriptor_runtime = descriptor._runtime # pylint: disable=protected-access
descriptor.bind_for_student(sub_module_system, descriptor._field_data, self.user_id) # pylint: disable=protected-access
descriptor.bind_for_student(sub_module_system, self.user_id)
return descriptor
module_system.get_module = get_module

1
common/lib/xmodule/xmodule/tests/test_split_test_module.py
View File

@@ -100,7 +100,6 @@ class SplitTestModuleTest(XModuleXmlImportTest, PartitionTestCase):
self.split_test_module = self.course_sequence.get_children()[0]
self.split_test_module.bind_for_student(
self.module_system,
self.split_test_module._field_data, # pylint: disable=protected-access
user.id
)

30
common/lib/xmodule/xmodule/x_module.py
View File

@@ -16,6 +16,7 @@ from pkg_resources import (
)
from webob import Response
from webob.multidict import MultiDict
from lazy import lazy
from xblock.core import XBlock, XBlockAside
from xblock.fields import (
@@ -361,6 +362,14 @@ class XModuleMixin(XModuleFields, XBlockMixin):
self.save()
return self._field_data._kvs # pylint: disable=protected-access
@lazy
def _unwrapped_field_data(self):
"""
This property hold the value _field_data here before we wrap it in
the LmsFieldData or OverrideFieldData classes.
"""
return self._field_data
def get_explicitly_set_fields_by_scope(self, scope=Scope.content):
"""
Get a dictionary of the fields for the given scope which are set explicitly on this xblock. (Including
@@ -542,14 +551,17 @@ class XModuleMixin(XModuleFields, XBlockMixin):
"""
return None
def bind_for_student(self, xmodule_runtime, field_data, user_id):
def bind_for_student(self, xmodule_runtime, user_id, wrappers=None):
"""
Set up this XBlock to act as an XModule instead of an XModuleDescriptor.
Arguments:
xmodule_runtime (:class:`ModuleSystem'): the runtime to use when accessing student facing methods
field_data (:class:`FieldData`): The :class:`FieldData` to use for all subsequent data access
user_id: The user_id to set in scope_ids
wrappers: These are a list functions that put a wrapper, such as
LmsFieldData or OverrideFieldData, around the field_data.
Note that the functions will be applied in the order in
which they're listed. So [f1, f2] -> f2(f1(field_data))
"""
# pylint: disable=attribute-defined-outside-init
@@ -578,7 +590,15 @@ class XModuleMixin(XModuleFields, XBlockMixin):
# Set the new xmodule_runtime and field_data (which are user-specific)
self.xmodule_runtime = xmodule_runtime
self._field_data = field_data
if wrappers is None:
wrappers = []
wrapped_field_data = self._unwrapped_field_data
for wrapper in wrappers:
wrapped_field_data = wrapper(wrapped_field_data)
self._field_data = wrapped_field_data
@property
def non_editable_metadata_fields(self):
@@ -1237,7 +1257,7 @@ class MetricsMixin(object):
)
class DescriptorSystem(MetricsMixin, ConfigurableFragmentWrapper, Runtime): # pylint: disable=abstract-method
class DescriptorSystem(ConfigurableFragmentWrapper, Runtime): # pylint: disable=abstract-method
"""
Base class for :class:`Runtime`s to be used with :class:`XModuleDescriptor`s
"""
@@ -1483,7 +1503,7 @@ class XMLParsingSystem(DescriptorSystem):
setattr(xblock, field.name, field_value)
class ModuleSystem(MetricsMixin, ConfigurableFragmentWrapper, Runtime): # pylint: disable=abstract-method
class ModuleSystem(ConfigurableFragmentWrapper, Runtime): # pylint: disable=abstract-method
"""
This is an abstraction such that x_modules can function independent
of the courseware (e.g. import into other types of courseware, LMS,

2
common/lib/xmodule/xmodule/xml_module.py
View File

@@ -446,7 +446,7 @@ class XmlParserMixin(object):
node.tag = xml_object.tag
node.text = xml_object.text
node.tail = xml_object.tail
node.attrib = xml_object.attrib
node.attrib.update(xml_object.attrib)
node.extend(xml_object)
node.set('url_name', self.url_name)

2
common/test/acceptance/tests/video/test_video_times.py
View File

@@ -3,6 +3,7 @@ Acceptance tests for Video Times(Start, End and Finish) functionality.
"""
from flaky import flaky
from .test_video_module import VideoBaseTest
import unittest
class VideoTimesTest(VideoBaseTest):
@@ -105,6 +106,7 @@ class VideoTimesTest(VideoBaseTest):
self.assertIn(self.video.position, ('0:15', '0:16'))
@unittest.skip('This is actually a bug! See TNL-1619')
def test_video_end_time_and_finish_time(self):
"""
Scenario: Youtube video works after pausing at end time and then plays again from End Time to the end.

22
lms/djangoapps/courseware/module_render.py
View File

@@ -497,15 +497,16 @@ def get_module_system_for_user(user, field_data_cache,
user_location=user_location,
request_token=request_token
)
# rebinds module to a different student. We'll change system, student_data, and scope_ids
authored_data = OverrideFieldData.wrap(
real_user, module.descriptor._field_data # pylint: disable=protected-access
)
module.descriptor.bind_for_student(
inner_system,
LmsFieldData(authored_data, inner_student_data),
real_user.id,
[
partial(OverrideFieldData.wrap, real_user),
partial(LmsFieldData, student_data=inner_student_data),
],
)
module.descriptor.scope_ids = (
module.descriptor.scope_ids._replace(user_id=real_user.id) # pylint: disable=protected-access
)
@@ -692,8 +693,15 @@ def get_module_for_descriptor_internal(user, descriptor, field_data_cache, cours
request_token=request_token
)
authored_data = OverrideFieldData.wrap(user, descriptor._field_data) # pylint: disable=protected-access
descriptor.bind_for_student(system, LmsFieldData(authored_data, student_data), user.id)
descriptor.bind_for_student(
system,
user.id,
[
partial(OverrideFieldData.wrap, user),
partial(LmsFieldData, student_data=student_data),
],
)
descriptor.scope_ids = descriptor.scope_ids._replace(user_id=user.id) # pylint: disable=protected-access
# Do not check access when it's a noauth request.

73
lms/djangoapps/courseware/tests/test_module_render.py
View File

@@ -12,6 +12,7 @@ from django.http import Http404, HttpResponse
from django.core.urlresolvers import reverse
from django.conf import settings
from django.test.client import RequestFactory
from django.test.utils import override_settings
from django.contrib.auth.models import AnonymousUser
from mock import MagicMock, patch, Mock
from opaque_keys.edx.keys import UsageKey, CourseKey
@@ -27,6 +28,7 @@ from xblock.fragment import Fragment
from capa.tests.response_xml_factory import OptionResponseXMLFactory
from courseware import module_render as render
from courseware.courses import get_course_with_access, course_image_url, get_course_info_section
from courseware.field_overrides import OverrideFieldData
from courseware.model_data import FieldDataCache
from courseware.module_render import hash_resource, get_module_for_descriptor
from courseware.models import StudentModule
@@ -34,6 +36,7 @@ from courseware.tests.factories import StudentModuleFactory, UserFactory, Global
from courseware.tests.tests import LoginEnrollmentTestCase
from courseware.tests.test_submitting_problems import TestSubmittingProblems
from lms.djangoapps.lms_xblock.runtime import quote_slashes
from lms.djangoapps.lms_xblock.field_data import LmsFieldData
from student.models import anonymous_id_for_user
from xmodule.modulestore.tests.django_utils import (
TEST_DATA_MIXED_TOY_MODULESTORE,
@@ -99,10 +102,15 @@ class ModuleRenderTestCase(ModuleStoreTestCase, LoginEnrollmentTestCase):
self.dispatch = 'score_update'
# Construct a 'standard' xqueue_callback url
self.callback_url = reverse('xqueue_callback', kwargs=dict(course_id=self.course_key.to_deprecated_string(),
userid=str(self.mock_user.id),
mod_id=self.mock_module.id,
dispatch=self.dispatch))
self.callback_url = reverse(
'xqueue_callback',
kwargs=dict(
course_id=self.course_key.to_deprecated_string(),
userid=str(self.mock_user.id),
mod_id=self.mock_module.id,
dispatch=self.dispatch
)
)
def test_get_module(self):
self.assertEqual(
@@ -249,6 +257,63 @@ class ModuleRenderTestCase(ModuleStoreTestCase, LoginEnrollmentTestCase):
render.get_module_for_descriptor(self.mock_user, request, descriptor, field_data_cache, self.toy_course.id)
render.get_module_for_descriptor(self.mock_user, request, descriptor, field_data_cache, self.toy_course.id)
@override_settings(FIELD_OVERRIDE_PROVIDERS=(
'ccx.overrides.CustomCoursesForEdxOverrideProvider',))
def test_rebind_different_users_ccx(self):
"""
This tests the rebinding a descriptor to a student does not result
in overly nested _field_data when CCX is enabled.
"""
request = self.request_factory.get('')
request.user = self.mock_user
course = CourseFactory()
descriptor = ItemFactory(category='html', parent=course)
field_data_cache = FieldDataCache(
[self.toy_course, descriptor], self.toy_course.id, self.mock_user
)
# grab what _field_data was originally set to
original_field_data = descriptor._field_data # pylint: disable=protected-access, no-member
render.get_module_for_descriptor(
self.mock_user, request, descriptor, field_data_cache, self.toy_course.id
)
# check that _unwrapped_field_data is the same as the original
# _field_data, but now _field_data as been reset.
# pylint: disable=protected-access, no-member
self.assertIs(descriptor._unwrapped_field_data, original_field_data)
self.assertIsNot(descriptor._unwrapped_field_data, descriptor._field_data)
# now bind this module to a few other students
for user in [UserFactory(), UserFactory(), UserFactory()]:
render.get_module_for_descriptor(
user,
request,
descriptor,
field_data_cache,
self.toy_course.id
)
# _field_data should now be wrapped by LmsFieldData
# pylint: disable=protected-access, no-member
self.assertIsInstance(descriptor._field_data, LmsFieldData)
# the LmsFieldData should now wrap OverrideFieldData
self.assertIsInstance(
# pylint: disable=protected-access, no-member
descriptor._field_data._authored_data._source,
OverrideFieldData
)
# the OverrideFieldData should point to the original unwrapped field_data
self.assertIs(
# pylint: disable=protected-access, no-member
descriptor._field_data._authored_data._source.fallback,
descriptor._unwrapped_field_data
)
def test_hash_resource(self):
"""
Ensure that the resource hasher works and does not fail on unicode,