def on_delete_sound(sender, instance, **kwargs):
if instance.moderation_state == "OK" and instance.processing_state == "OK":
try:
DeletedSound.objects.get_or_create(sound_id=instance.id,
user=instance.user)
except User.DoesNotExist:
deleted_user = User.objects.get(id=settings.DELETED_USER_ID)
DeletedSound.objects.get_or_create(sound_id=instance.id,
user=deleted_user)
try:
if instance.geotag:
instance.geotag.delete()
except:
pass
if instance.pack:
instance.pack.process()
delete_sound_from_solr(instance)
delete_object_files(instance, web_logger)
if instance.similarity_state == 'OK':
try:
if Similarity.contains(instance.id):
Similarity.delete(instance.id)
except:
web_logger.warn(
"ommitting similarity deletion for deleted sound %d" %
instance.id)
web_logger.debug("Deleted sound with id %i" % instance.id)
def delete_sound_from_gaia(sound):
logger.info("Deleting sound from gaia with id %d" % sound.id)
try:
Similarity.delete(sound.id)
except Exception, e:
logger.warn("Could not delete sound from gaia with id %d (%s)" %
(sound.id, str(e)))
def on_delete_sound(sender,instance, **kwargs):
if instance.moderation_state == "OK" and instance.processing_state == "OK":
try:
DeletedSound.objects.get_or_create(sound_id=instance.id, user=instance.user)
except User.DoesNotExist:
deleted_user = User.objects.get(id=settings.DELETED_USER_ID)
DeletedSound.objects.get_or_create(sound_id=instance.id, user=deleted_user)
try:
if instance.geotag:
instance.geotag.delete()
except:
pass
if instance.pack:
instance.pack.process()
delete_sound_from_solr(instance)
delete_object_files(instance, web_logger)
if instance.similarity_state=='OK':
try:
if Similarity.contains(instance.id):
Similarity.delete(instance.id)
except:
web_logger.warn("ommitting similarity deletion for deleted sound %d"%instance.id)
web_logger.debug("Deleted sound with id %i"%instance.id)
def read(self, request, sound_id):
try:
sound = Sound.objects.get(id=sound_id, moderation_state="OK", processing_state="OK", similarity_state="OK")
#TODO: similarity_state="OK"
#TODO: this filter has to be added again, but first the db has to be updated
except Sound.DoesNotExist: #@UndefinedVariable
raise ReturnError(404, "NotFound", {"explanation": "Sound with id %s does not exist or similarity data is not ready." % sound_id})
similar_sounds = get_similar_sounds(sound,request.GET.get('preset', None), int(request.GET.get('num_results', settings.SOUNDS_PER_PAGE)) )
sounds = []
for similar_sound in similar_sounds :
try:
sound = prepare_collection_sound(Sound.objects.select_related('user').get(id=similar_sound[0]), custom_fields = request.GET.get('fields', False))
sound['distance'] = similar_sound[1]
sounds.append(sound)
except Exception, e:
# Delete sound from gaia index so it does not appear again in similarity searches
if Similarity.contains(similar_sound[0]):
Similarity.delete(similar_sound[0])
# Invalidate similarity search cache
cache_key = "similar-for-sound-%s-%s" % (similar_sound[0], request.GET.get('preset', None))
cache.delete(cache_key)
def on_delete_sound(sender, instance, **kwargs):
if instance.moderation_state == "OK" and instance.processing_state == "OK":
try:
DeletedSound.objects.get_or_create(sound_id=instance.id,
user=instance.user)
except User.DoesNotExist:
deleted_user = User.objects.get(id=settings.DELETED_USER_ID)
DeletedSound.objects.get_or_create(sound_id=instance.id,
user=deleted_user)
try:
if instance.geotag:
instance.geotag.delete()
except:
pass
try:
if instance.pack:
instance.pack.process()
except Pack.DoesNotExist:
'''
It might happen when we do user.delete() to a user that has several sounds in packs that when post_delete
signals for sounds are called, the packs have already been deleted. This is because the way in which django
deletes all the related objects with foreign keys. When a user is deleted, its packs and sounds must be deleted
too. Django first runs pre_delete on all objects to be deleted, then delete and then post_delete. Therefore
it can happen that when the post_delete signal for a sound is called, the pack has already been deleted but the
instance passed to the post_delete function still points to that pack. We can therefore safely use try/except
here and we'll still be doing the job correctly.
'''
pass
delete_sound_from_solr(instance)
delete_object_files(instance, web_logger)
if instance.similarity_state == 'OK':
try:
if Similarity.contains(instance.id):
Similarity.delete(instance.id)
except:
web_logger.warn(
"ommitting similarity deletion for deleted sound %d" %
instance.id)
web_logger.debug("Deleted sound with id %i" % instance.id)
def on_delete_sound(sender, instance, **kwargs):
if instance.moderation_state == "OK" and instance.processing_state == "OK":
try:
DeletedSound.objects.get_or_create(sound_id=instance.id, user=instance.user)
except User.DoesNotExist:
deleted_user = User.objects.get(id=settings.DELETED_USER_ID)
DeletedSound.objects.get_or_create(sound_id=instance.id, user=deleted_user)
try:
if instance.geotag:
instance.geotag.delete()
except:
pass
try:
if instance.pack:
instance.pack.process()
except Pack.DoesNotExist:
'''
It might happen when we do user.delete() to a user that has several sounds in packs that when post_delete
signals for sounds are called, the packs have already been deleted. This is because the way in which django
deletes all the related objects with foreign keys. When a user is deleted, its packs and sounds must be deleted
too. Django first runs pre_delete on all objects to be deleted, then delete and then post_delete. Therefore
it can happen that when the post_delete signal for a sound is called, the pack has already been deleted but the
instance passed to the post_delete function still points to that pack. We can therefore safely use try/except
here and we'll still be doing the job correctly.
'''
pass
delete_sound_from_solr(instance)
delete_object_files(instance, web_logger)
if instance.similarity_state == 'OK':
try:
if Similarity.contains(instance.id):
Similarity.delete(instance.id)
except:
web_logger.warn("ommitting similarity deletion for deleted sound %d" % instance.id)
web_logger.debug("Deleted sound with id %i" % instance.id)
def on_delete_sound(sender,instance, **kwargs):
if instance.moderation_state == "OK" and instance.processing_state == "OK":
try:
DeletedSound.objects.get_or_create(sound_id=instance.id, user=instance.user)
except User.DoesNotExist:
deleted_user = User.objects.get(id=settings.DELETED_USER_ID)
DeletedSound.objects.get_or_create(sound_id=instance.id, user=deleted_user)
try:
if instance.geotag:
instance.geotag.delete()
except:
pass
if instance.pack:
instance.pack.process()
delete_sound_from_solr(instance)
delete_object_files(instance, web_logger)
# N.B. be watchful of errors that might be thrown if the sound is not in the similarity index
if Similarity.contains(instance.id):
Similarity.delete(instance.id)
web_logger.debug("Deleted sound with id %i"%instance.id)
def delete_sound_from_gaia(sound):
logger.info("Deleting sound from gaia with id %d" % sound.id)
try:
Similarity.delete(sound.id)
except Exception, e:
logger.warn("Could not delete sound from gaia with id %d (%s)" % (sound.id, str(e)))
raise ReturnError(400, "BadRequest", {'explanation':e})
else:
raise ReturnError(500, "ContentBasedSearchError", {'explanation':'Unknown error 500'})
paginator = paginate(request, results, min(int(request.GET.get('sounds_per_page', settings.SOUNDS_PER_API_RESPONSE)),settings.MAX_SOUNDS_PER_API_RESPONSE),'p')
page = paginator['page']
sounds = []
if int(request.GET.get("p", "1")) <= paginator['paginator'].num_pages: # This is to mimic solr paginator behavior
for result in page.object_list:
try:
sound = prepare_collection_sound(Sound.objects.select_related('user').get(id=int(result[0])), include_user=False, custom_fields = request.GET.get('fields', False))
sounds.append(sound)
except Exception, e:
# Delete sound from gaia index so it does not appear again in similarity searches
if Similarity.contains(int(result[0])):
Similarity.delete(int(result[0]))
# Invalidate similarity search cache
cache_key = "content-based-search-t-%s-f-%s-nr-%s" % (t.replace(" ",""),f.replace(" ",""),int(request.GET.get('max_results', settings.SOUNDS_PER_PAGE)))
cache.delete(cache_key)
#sounds = [prepare_collection_sound(Sound.objects.select_related('user').get(id=int(result[0])), include_user=False, custom_fields = request.GET.get('fields', False)) for result in page.object_list]
result = {'sounds': sounds, 'num_results': paginator['paginator'].count, 'num_pages': paginator['paginator'].num_pages}
if int(request.GET.get("p", "1")) <= paginator['paginator'].num_pages: # This is to mimic solr paginator behavior
if page.has_other_pages():
if page.has_previous():
result['previous'] = self.__construct_pagination_link(str(t), str(f), page.previous_page_number(), request.GET.get('sounds_per_page',None), int(request.GET.get('max_results', False)), request.GET.get('fields', False))
if page.has_next():
result['next'] = self.__construct_pagination_link(str(t), str(f), page.next_page_number(), request.GET.get('sounds_per_page',None), int(request.GET.get('max_results', False)), request.GET.get('fields', False))
add_request_id(request,result)
