def test_delete_fragment(self):
self.assertEqual(models.ArticleFragment.objects.count(), 1)
fragment = {'title': 'pants. party'}
logic.add(self.msid, 'foo', fragment)
self.assertEqual(models.ArticleFragment.objects.count(), 2)
logic.rm(self.msid, 'foo')
self.assertEqual(models.ArticleFragment.objects.count(), 1)
def test_update_fragment(self):
"a fragment of article data can be updated by adding it again with different content"
# ensure we have something that resembles the ingest data
self.assertEqual(models.ArticleFragment.objects.count(), 1)
frag = logic.get(self.av, 'xml->json').fragment
self.assertTrue('title' in frag)
# now update it with some garbage
data = {'title': 'pants-party'}
logic.add(self.av, 'xml->json', data, pos=0, update=True)
# ensure we've just destroyed our very important data
frag = logic.get(self.av, 'xml->json').fragment
self.assertEqual(frag, data)
def test_valid_merge_updates_article_version_fields(self):
"when a fragment is added, if the merge results in valid article-json, the results of the merge are stored"
# setUp inserts article snippet that should be valid
av = self.freshen(self.av)
# TODO: remove this once xml validates
# layer in enough to make it validate
placeholders = {
'statusDate': '2001-01-01T00:00:00Z',
}
logic.add(self.msid, 'foo', placeholders)
self.assertTrue(logic.set_article_json(self.av, quiet=True))
av = self.freshen(self.av)
self.assertTrue(av.article_json_v1)
self.assertTrue(av.article_json_v1_snippet)
def test_add_fragment(self):
"a fragment of article data can be recorded against an Article"
# `setUp` creates a fragment by ingesting article
self.assertEqual(models.ArticleFragment.objects.count(), 1)
fragment = {'title': 'pants. party'}
fragobj, created, updated = logic.add(self.msid, 'foo', fragment)
self.assertEqual(models.ArticleFragment.objects.count(), 2)
self.assertEqual(fragment, fragobj.fragment)
def setUp(self):
# unauthenticated
self.c = Client()
# authenticated
self.ac = Client(**{
mware.CGROUPS: 'admin',
})
self.msid = 16695
self.ajson_fixture_v1 = join(self.fixture_dir, 'ajson',
'elife-16695-v1.xml.json') # poa
self.av = ajson_ingestor.ingest_publish(
json.load(open(self.ajson_fixture_v1, 'r')))
self.key = 'test-frag'
fragment = {'title': 'Electrostatic selection'}
fragments.add(
self.av.article, self.key,
fragment) # add it to the *article* not the article *version*
def test_merge_fragments(self):
logic.add(self.av, 'xml->json', {'title': 'foo'}, update=True)
logic.add(self.msid, 'frag1', {'body': 'bar'})
logic.add(self.msid, 'frag2', {'foot': 'baz'})
expected = {'title': 'foo', 'body': 'bar', 'foot': 'baz'}
self.assertEqual(expected, logic.merge(self.av))
def test_delete_fragment_sends_aws_event(self):
"sucessfully deleting a fragment sends an aws event"
self.key = 'test-frag'
fragment = {'title': 'Electrostatic selection'}
fragments.add(
self.av.article, self.key,
fragment) # add it to the *article* not the article *version*
mock = Mock()
with patch('publisher.aws_events.event_bus_conn', return_value=mock):
url = reverse('v2:article-fragment',
kwargs={
'art_id': self.msid,
'fragment_id': self.key
})
resp = self.ac.delete(url, json.dumps(fragment))
self.assertEqual(resp.status_code, 200) # successfully deleted
# https://docs.djangoproject.com/en/1.10/topics/db/transactions/#use-in-tests
expected_event = json.dumps({"type": "article", "id": self.msid})
mock.publish.assert_called_once_with(Message=expected_event)
def test_merge_overwrite_fragments(self):
logic.add(self.av, 'xml->json', {'title': 'foo'},
update=True) # destroys original article json
logic.add(self.msid, 'frag1', {'title': 'bar'})
logic.add(self.msid, 'frag2', {'title': 'baz'})
expected = {'title': 'baz'}
self.assertEqual(expected, logic.merge(self.av))
def test_fragment_ordering(self):
logic.add(self.av, 'xml->json', {'title': 'foo'}, update=True)
logic.add(self.msid, 'frag1', {'body': 'bar'})
logic.add(self.msid, 'frag2', {'foot': 'baz'})
# order of insertion is preserved
expected_order = ['xml->json', 'frag1', 'frag2']
for given, expected in zip(models.ArticleFragment.objects.all(),
expected_order):
self.assertEqual(given.type, expected)
def test_fragment_ordering_explicit(self):
logic.add(self.av, 'xml->json', {'title': 'foo'},
update=True) # implicit pos=1
logic.add(self.msid, 'frag1', {'title': 'bar'},
pos=2) # explicit pos=2
logic.add(self.msid, 'frag2', {'title': 'baz'},
pos=1) # explicit pos=1
# order of insertion is preserved + explicit ordering
expected_order = ['xml->json', 'frag2', 'frag1']
for given, expected in zip(models.ArticleFragment.objects.all(),
expected_order):
self.assertEqual(given.type, expected)
expected = {'title': 'bar'}
self.assertEqual(expected, logic.merge(self.av))
def _ingest(data, force=False):
"""ingests article-json. returns a triple of (journal obj, article obj, article version obj)
unpublished article-version data can be ingested multiple times UNLESS that article version has been published.
published article-version data can be ingested only if force=True"""
data = copy.deepcopy(data) # we don't want to modify the given data
create = update = True
log_context = {}
try:
# this *could* be scraped from the provided data, but we have no time to
# normalize journal names so we sometimes get duplicate journals in the db.
# safer to disable until needed.
journal = logic.journal()
try:
article_struct = render.render_item(ARTICLE, data['article'])
article, created, updated = \
create_or_update(models.Article, article_struct, ['manuscript_id', 'journal'], create, update, journal=journal)
assert isinstance(article, models.Article)
log_context['article'] = article
previous_article_versions = None
if updated:
previous_article_versions = list(article.articleversion_set.all().order_by('version')) # earliest -> latest
av_struct = render.render_item(ARTICLE_VERSION, data['article'])
# this is an INGEST event and *not* a PUBLISH event. we don't touch the date published.
del av_struct['datetime_published']
av, created, updated = \
create_or_update(models.ArticleVersion, av_struct, ['article', 'version'],
create, update, commit=False, article=article)
except KeyError as err:
raise ValueError("failed to scrape article data, couldn't find key %s" % err)
assert isinstance(av, models.ArticleVersion)
log_context['article-version'] = av
# only update the fragment if this article version has *not* been published *or* if force=True
update_fragment = not av.published() or force
merge_result = fragments.add(av, XML2JSON, data['article'], pos=0, update=update_fragment)
fragments.merge_if_valid(av)
invalid_ajson = not merge_result
if invalid_ajson:
LOG.warn("this article failed to merge it's fragments into a valid result and cannot be PUBLISHed in it's current state.", extra=log_context)
# enforce business rules
if created:
if previous_article_versions:
last_version = previous_article_versions[-1]
log_context['previous-version'] = last_version
if not last_version.published():
# uhoh. we're attempting to create an article version before previous version of that article has been published.
msg = "refusing to ingest new article version when previous article version is still unpublished."
LOG.error(msg, extra=log_context)
raise StateError(msg)
if not last_version.version + 1 == av.version:
# uhoh. we're attempting to create an article version out of sequence
msg = "refusing to ingest new article version out of sequence."
log_context.update({
'given-version': av.version,
'expected-version': last_version.version + 1})
LOG.error(msg, extra=log_context)
raise StateError(msg)
# no other versions of article exist
else:
if not av.version == 1:
# uhoh. we're attempting to create our first article version and it isn't a version 1
msg = "refusing to ingest new article version out of sequence. no other article versions exist so I expect a v1"
log_context.update({
'given-version': av.version,
'expected-version': 1})
LOG.error(msg, extra=log_context)
raise StateError(msg)
elif updated:
# this version of the article already exists
# this is only a problem if the article version has already been published
if av.published():
# uhoh. we've received an INGEST event for a previously published article version
if not force:
# unless our arm is being twisted, die.
msg = "refusing to ingest new article data on an already published article version."
LOG.error(msg, extra=log_context)
raise StateError(msg)
# passed all checks, save
av.save()
# notify event bus that article change has occurred
transaction.on_commit(partial(events.notify, article))
return journal, article, av
except KeyError as err:
# *probably* an error while scraping ...
raise StateError("failed to scrape given article data: %s" % err)
except StateError:
raise
except Exception:
LOG.exception("unhandled exception attempting to ingest article-json", extra=log_context)
raise
def _ingest(data, force=False) -> models.ArticleVersion:
"""ingests article-json. returns a triple of (journal obj, article obj, article version obj)
unpublished article-version data can be ingested multiple times UNLESS that article version has been published.
published article-version data can be ingested only if force=True"""
create = update = True
log_context = {}
try:
av, created, updated, previous_article_versions = _ingest_objects(
data, create, update, force, log_context)
# only update the fragment if this article version has *not* been published *or* if force=True
update_fragment = not av.published() or force
fragments.add(av,
XML2JSON,
data['article'],
pos=0,
update=update_fragment)
# validation of article-json occurs here
fragments.set_article_json(
av, quiet=False if settings.VALIDATE_FAILS_FORCE else force)
# update the relationships
relationships.remove_relationships(av)
relationships.relate_using_msid_list(av,
data['article'].get(
'-related-articles-internal',
[]),
quiet=force)
relationships.relate_using_citation_list(
av, data['article'].get('-related-articles-external', []))
# enforce business rules
if created:
if previous_article_versions:
last_version = previous_article_versions[-1]
log_context['previous-version'] = last_version
if not last_version.published():
# uhoh. we're attempting to create an article version before previous version of that article has been published.
msg = "refusing to ingest new article version when previous article version is still unpublished."
LOG.error(msg, extra=log_context)
raise StateError(codes.PREVIOUS_VERSION_UNPUBLISHED, msg)
if not last_version.version + 1 == av.version:
# uhoh. we're attempting to create an article version out of sequence
msg = "refusing to ingest new article version out of sequence."
log_context.update({
'given-version':
av.version,
'expected-version':
last_version.version + 1
})
LOG.error(msg, extra=log_context)
raise StateError(codes.PREVIOUS_VERSION_DNE, msg)
# no other versions of article exist
else:
if not av.version == 1:
# uhoh. we're attempting to create our first article version and it isn't a version 1
msg = "refusing to ingest new article version out of sequence. no other article versions exist so I expect a v1"
log_context.update({
'given-version': av.version,
'expected-version': 1
})
LOG.error(msg, extra=log_context)
raise StateError(codes.PREVIOUS_VERSION_DNE, msg)
elif updated:
# this version of the article already exists
# this is only a problem if the article version has already been published
if av.published():
# uhoh. we've received an INGEST event for a previously published article version
if not force:
# unless our arm is being twisted, die.
msg = "refusing to ingest new article data on an already published article version."
LOG.error(msg, extra=log_context)
raise StateError(codes.ALREADY_PUBLISHED, msg)
# passed all checks, save
av.save()
# notify event bus that article change has occurred
transaction.on_commit(partial(aws_events.notify_all, av))
return av
except KeyError as err:
# *probably* an error while scraping ...
raise StateError(codes.PARSE_ERROR,
"failed to scrape given article data: %r" % err)
except StateError:
raise
except ValidationError as err:
raise StateError(codes.INVALID, "validation error: %s" % err.message,
err)
except Exception:
LOG.exception("unhandled exception attempting to ingest article-json",
extra=log_context)
raise