def create(self, request, workspace_id):
user = get_user_authentication(request)
workspace = get_object_or_404(WorkSpace, id=workspace_id)
if not user.is_staff and workspace.creator != user:
return HttpResponseForbidden()
# Gets all needed parameters from request
if 'json' in request.POST:
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest(_(u'JSON parameter expected'))
try:
new_channels = json['inOutList']
old_channels = InOut.objects.filter(workspace_variable__workspace=workspace)
# Mapping between provisional ids and database-generated ids!!!
id_mapping = {}
# Hash for mapping External Channels URLs and IDs
rchannels_urls_to_ids = []
# A list of the channels removed by the user
# Initially, all channels are considered to be deleted, and they
# will be removed from this list if they appear in the inOuList
# argument
channelsDeletedByUser = old_channels[::1]
# Disconnect all channels in the workspace
for old_channel in old_channels:
# Deleting the old relationships between channels
# First delete the relationships where old_channel is the input
rel_old_channels = RelatedInOut.objects.filter(in_inout=old_channel)
for channel_delete in rel_old_channels:
channel_delete.delete()
# And then the relationships where old_channel is the output
rel_old_channels = RelatedInOut.objects.filter(out_inout=old_channel)
for channel_delete in rel_old_channels:
channel_delete.delete()
if old_channel.remote_subscription:
old_channel.remote_subscription.delete()
# Adding channels recreating JSON structure!
for channel_id in new_channels:
new_channel_data = new_channels[channel_id]
# Remote subscriptions!
remote_subscription = None
if new_channel_data.get('remote_subscription', None):
op_code = unicode(new_channel_data['remote_subscription']['op_code'])
url = new_channel_data['remote_subscription']['url']
if op_code != '0':
remote_channel, created = RemoteChannel.objects.get_or_create(url=url)
data = dict()
data['url'] = url
data['id'] = remote_channel.id
rchannels_urls_to_ids.append(data)
remote_subscription = RemoteSubscription(operation_code=op_code, remote_channel=remote_channel)
remote_subscription.save()
if new_channel_data.get('provisional_id', False):
# It's necessary to create a new channel from scratch
filter = None
filter_params = None
if new_channel_data.get('filter_id', ''):
filter = Filter.objects.get(id=new_channel_data['filter_id'])
filter_params = new_channel_data['filter_params']
channel = createChannel(workspace, new_channel_data['name'], filter, filter_params, remote_subscription)
# A channel has been generated. It's necessary to correlate provisional and final ids!
id_mapping[new_channel_data['id']] = {'new_id': channel.id, 'new_wv_id': channel.workspace_variable.id}
else:
channel = InOut.objects.get(id=channel_id)
workspace_variable = channel.workspace_variable
workspace_variable.abstract_variable.name = new_channel_data['name']
workspace_variable.abstract_variable.save()
filter = None
filter_params = ''
if new_channel_data.get('filter', ''):
filter = Filter.objects.get(id=new_channel_data['filter'])
filter_params = json_encode(new_channel_data['filter_params'])
channel.remote_subscription = remote_subscription
channel.name = new_channel_data['name']
channel.filter = filter
channel.filter_param_values = filter_params
channel.friend_code = ""
channel.save()
channelsDeletedByUser.remove(channel)
# In connections
# InOut out connections will be created later
for inputId in new_channel_data.get('ins', []):
connectable = In.objects.get(id=inputId)
connectable.inouts.add(channel)
connectable.save()
# Out connections
# InOut out connections will be created later
for outputId in new_channel_data.get('outs', []):
connectable = Out.objects.get(id=outputId)
connectable.inouts.add(channel)
connectable.save()
# Now it is time to recreate channel to channel connections
for channel_id in new_channels:
new_channel_data = new_channels[channel_id]
inout_id = new_channel_data['id']
if new_channel_data['provisional_id']:
inout_id = id_mapping[inout_id]['new_id']
channel = InOut.objects.get(id=inout_id)
for inout_to_add in new_channel_data.get('inouts', []):
inout_id = inout_to_add['id']
# search final id if needed
if inout_to_add['provisional_id']:
inout_id = id_mapping[inout_id]['new_id']
relationship = RelatedInOut(in_inout=channel, out_inout=InOut.objects.get(id=inout_id))
relationship.save()
# Erasing variables associated with channels deleted explicitly by the user
for deleted_channel_id in channelsDeletedByUser:
# Removing workspace_variable and abstract_variable of channels deleted explicitly by user
deleteChannel(deleted_channel_id)
json_result = {'ids': id_mapping, 'urls': rchannels_urls_to_ids}
return HttpResponse(json_encode(json_result), mimetype='application/json; charset=UTF-8')
except Exception, e:
msg = _('connectables cannot be saved: %(exc)s') % {'exc': e}
raise TracedServerError(e, json, request, msg)
def update(self, request, workspace_id):
user = get_user_authentication(request)
# Gets all needed parameters from request
if 'json' in request.POST:
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest(_(u'JSON parameter expected'))
workspace = get_object_or_404(WorkSpace, id=workspace_id)
if not user.is_staff and workspace.creator != user:
return HttpResponseForbidden()
id_mapping = {}
# Phase 1: Additions
channels_to_add = json['channelsToAdd']
for new_channel in channels_to_add:
# Creating the abstract variable for this channel
new_abstract_variable = AbstractVariable(type="WORKSPACE", name=new_channel['name'])
new_abstract_variable.save()
# Creating the variable value entry for this channel
new_variable_value = VariableValue(user=user, value="", abstract_variable=new_abstract_variable)
new_variable_value.save()
# And the workspace variable
new_ws_variable = WorkSpaceVariable(workspace=workspace, abstract_variable=new_abstract_variable, aspect="CHANNEL")
new_ws_variable.save()
channel = InOut(name="", workspace_variable=new_ws_variable, filter=None, filter_param_values=None, friend_code="")
channel.save()
id_mapping[new_channel['id']] = {'cid': channel.id, 'wvid': new_ws_variable.id}
# Phase 2: Updates
channels_to_update = json['channelsToUpdate']
for current_channel_data in channels_to_update:
current_channel_id = current_channel_data['id']
# search final id if needed
if current_channel_data['provisional_id']:
current_channel_id = id_mapping[current_channel_id]['cid']
current_channel = InOut.objects.get(id=current_channel_data['id'])
for input_to_add in current_channel_data['inputsToRemove']:
connectable = In.objects.get(id=input_to_add['id'])
connectable.inouts.add(current_channel)
connectable.save()
for input_to_remove in current_channel_data['inputsToRemove']:
connectable = In.objects.get(id=input_to_add['id'])
connectable.inouts.remove(current_channel)
connectable.save()
for output_to_add in current_channel_data['outputsToRemove']:
connectable = Out.objects.get(id=output_to_add['id'])
connectable.inouts.add(current_channel)
connectable.save()
for output_to_remove in current_channel_data['outputsToRemove']:
connectable = Out.objects.get(id=output_to_add['id'])
connectable.inouts.remove(current_channel)
connectable.save()
for inout_to_add in current_channel_data['inoutsToRemove']:
inout_id = input_to_add['id']
# search final id if needed
if inout_to_add['provisional_id']:
inout_id = id_mapping[inout_id]['cid']
relationship = RelatedInOut(in_inout=current_channel, out_inout=InOut.objects.get(id=inout_id))
relationship.save()
for output_to_remove in current_channel_data['outputsToRemove']:
inout_id = input_to_add['id']
# search final id if needed
if inout_to_add['provisional_id']:
inout_id = id_mapping[inout_id]['cid']
relationship = RelatedInOut.objects.get(in_inout=current_channel, out_inout=inout_id)
relationship.delete()
# Phase 3: Deletions
channels_to_remove = json['channelsToRemove']
for current_channel_data in channels_to_remove:
channel = InOut.objects.get(id=current_channel_data['id'])
deleteChannel(channel)
json_result = {'id_mapping': id_mapping}
return HttpResponse(json_encode(json_result), mimetype='application/json; charset=UTF-8')
def create(self, request, workspace_id):
user = get_user_authentication(request)
workspace = get_object_or_404(WorkSpace, id=workspace_id)
if not user.is_staff and workspace.creator != user:
return HttpResponseForbidden()
# Gets all needed parameters from request
if 'json' in request.POST:
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest(_(u'JSON parameter expected'))
try:
new_channels = json['inOutList']
old_channels = InOut.objects.filter(
workspace_variable__workspace=workspace)
# Mapping between provisional ids and database-generated ids!!!
id_mapping = {}
# Hash for mapping External Channels URLs and IDs
rchannels_urls_to_ids = []
# A list of the channels removed by the user
# Initially, all channels are considered to be deleted, and they
# will be removed from this list if they appear in the inOuList
# argument
channelsDeletedByUser = old_channels[::1]
# Disconnect all channels in the workspace
for old_channel in old_channels:
# Deleting the old relationships between channels
# First delete the relationships where old_channel is the input
rel_old_channels = RelatedInOut.objects.filter(
in_inout=old_channel)
for channel_delete in rel_old_channels:
channel_delete.delete()
# And then the relationships where old_channel is the output
rel_old_channels = RelatedInOut.objects.filter(
out_inout=old_channel)
for channel_delete in rel_old_channels:
channel_delete.delete()
if old_channel.remote_subscription:
old_channel.remote_subscription.delete()
# Adding channels recreating JSON structure!
for channel_id in new_channels:
new_channel_data = new_channels[channel_id]
# Remote subscriptions!
remote_subscription = None
if new_channel_data.get('remote_subscription', None):
op_code = unicode(
new_channel_data['remote_subscription']['op_code'])
url = new_channel_data['remote_subscription']['url']
if op_code != '0':
remote_channel, created = RemoteChannel.objects.get_or_create(
url=url)
data = dict()
data['url'] = url
data['id'] = remote_channel.id
rchannels_urls_to_ids.append(data)
remote_subscription = RemoteSubscription(
operation_code=op_code,
remote_channel=remote_channel)
remote_subscription.save()
if new_channel_data.get('provisional_id', False):
# It's necessary to create a new channel from scratch
filter = None
filter_params = None
if new_channel_data.get('filter_id', ''):
filter = Filter.objects.get(
id=new_channel_data['filter_id'])
filter_params = new_channel_data['filter_params']
channel = createChannel(workspace,
new_channel_data['name'], filter,
filter_params, remote_subscription)
# A channel has been generated. It's necessary to correlate provisional and final ids!
id_mapping[new_channel_data['id']] = {
'new_id': channel.id,
'new_wv_id': channel.workspace_variable.id
}
else:
channel = InOut.objects.get(id=channel_id)
workspace_variable = channel.workspace_variable
workspace_variable.abstract_variable.name = new_channel_data[
'name']
workspace_variable.abstract_variable.save()
filter = None
filter_params = ''
if new_channel_data.get('filter', ''):
filter = Filter.objects.get(
id=new_channel_data['filter'])
filter_params = json_encode(
new_channel_data['filter_params'])
channel.remote_subscription = remote_subscription
channel.name = new_channel_data['name']
channel.filter = filter
channel.filter_param_values = filter_params
channel.friend_code = ""
channel.save()
channelsDeletedByUser.remove(channel)
# In connections
# InOut out connections will be created later
for inputId in new_channel_data.get('ins', []):
connectable = In.objects.get(id=inputId)
connectable.inouts.add(channel)
connectable.save()
# Out connections
# InOut out connections will be created later
for outputId in new_channel_data.get('outs', []):
connectable = Out.objects.get(id=outputId)
connectable.inouts.add(channel)
connectable.save()
# Now it is time to recreate channel to channel connections
for channel_id in new_channels:
new_channel_data = new_channels[channel_id]
inout_id = new_channel_data['id']
if new_channel_data['provisional_id']:
inout_id = id_mapping[inout_id]['new_id']
channel = InOut.objects.get(id=inout_id)
for inout_to_add in new_channel_data.get('inouts', []):
inout_id = inout_to_add['id']
# search final id if needed
if inout_to_add['provisional_id']:
inout_id = id_mapping[inout_id]['new_id']
relationship = RelatedInOut(
in_inout=channel,
out_inout=InOut.objects.get(id=inout_id))
relationship.save()
# Erasing variables associated with channels deleted explicitly by the user
for deleted_channel_id in channelsDeletedByUser:
# Removing workspace_variable and abstract_variable of channels deleted explicitly by user
deleteChannel(deleted_channel_id)
json_result = {'ids': id_mapping, 'urls': rchannels_urls_to_ids}
return HttpResponse(json_encode(json_result),
mimetype='application/json; charset=UTF-8')
except Exception, e:
msg = _('connectables cannot be saved: %(exc)s') % {'exc': e}
raise TracedServerError(e, json, request, msg)
def update(self, request, workspace_id):
user = get_user_authentication(request)
# Gets all needed parameters from request
if 'json' in request.POST:
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest(_(u'JSON parameter expected'))
workspace = get_object_or_404(WorkSpace, id=workspace_id)
if not user.is_staff and workspace.creator != user:
return HttpResponseForbidden()
id_mapping = {}
# Phase 1: Additions
channels_to_add = json['channelsToAdd']
for new_channel in channels_to_add:
# Creating the abstract variable for this channel
new_abstract_variable = AbstractVariable(type="WORKSPACE",
name=new_channel['name'])
new_abstract_variable.save()
# Creating the variable value entry for this channel
new_variable_value = VariableValue(
user=user, value="", abstract_variable=new_abstract_variable)
new_variable_value.save()
# And the workspace variable
new_ws_variable = WorkSpaceVariable(
workspace=workspace,
abstract_variable=new_abstract_variable,
aspect="CHANNEL")
new_ws_variable.save()
channel = InOut(name="",
workspace_variable=new_ws_variable,
filter=None,
filter_param_values=None,
friend_code="")
channel.save()
id_mapping[new_channel['id']] = {
'cid': channel.id,
'wvid': new_ws_variable.id
}
# Phase 2: Updates
channels_to_update = json['channelsToUpdate']
for current_channel_data in channels_to_update:
current_channel_id = current_channel_data['id']
# search final id if needed
if current_channel_data['provisional_id']:
current_channel_id = id_mapping[current_channel_id]['cid']
current_channel = InOut.objects.get(id=current_channel_data['id'])
for input_to_add in current_channel_data['inputsToRemove']:
connectable = In.objects.get(id=input_to_add['id'])
connectable.inouts.add(current_channel)
connectable.save()
for input_to_remove in current_channel_data['inputsToRemove']:
connectable = In.objects.get(id=input_to_add['id'])
connectable.inouts.remove(current_channel)
connectable.save()
for output_to_add in current_channel_data['outputsToRemove']:
connectable = Out.objects.get(id=output_to_add['id'])
connectable.inouts.add(current_channel)
connectable.save()
for output_to_remove in current_channel_data['outputsToRemove']:
connectable = Out.objects.get(id=output_to_add['id'])
connectable.inouts.remove(current_channel)
connectable.save()
for inout_to_add in current_channel_data['inoutsToRemove']:
inout_id = input_to_add['id']
# search final id if needed
if inout_to_add['provisional_id']:
inout_id = id_mapping[inout_id]['cid']
relationship = RelatedInOut(
in_inout=current_channel,
out_inout=InOut.objects.get(id=inout_id))
relationship.save()
for output_to_remove in current_channel_data['outputsToRemove']:
inout_id = input_to_add['id']
# search final id if needed
if inout_to_add['provisional_id']:
inout_id = id_mapping[inout_id]['cid']
relationship = RelatedInOut.objects.get(
in_inout=current_channel, out_inout=inout_id)
relationship.delete()
# Phase 3: Deletions
channels_to_remove = json['channelsToRemove']
for current_channel_data in channels_to_remove:
channel = InOut.objects.get(id=current_channel_data['id'])
deleteChannel(channel)
json_result = {'id_mapping': id_mapping}
return HttpResponse(json_encode(json_result),
mimetype='application/json; charset=UTF-8')
def create(self, request, workspace_id):
user = get_user_authentication(request)
workspace = get_object_or_404(WorkSpace, id=workspace_id)
if not user.is_staff and workspace.creator != user:
return HttpResponseForbidden()
# Gets all needed parameters from request
if "json" in request.POST:
json = simplejson.loads(request.POST["json"])
else:
return HttpResponseBadRequest(_(u"JSON parameter expected"))
try:
new_channels = json["inOutList"]
old_channels = InOut.objects.filter(workspace=workspace)
# Mapping between provisional ids and database-generated ids!!!
id_mapping = {}
# Hash for mapping External Channels URLs and IDs
rchannels_urls_to_ids = []
# A list of the channels removed by the user
# Initially, all channels are considered to be deleted, and they
# will be removed from this list if they appear in the inOuList
# argument
channelsDeletedByUser = old_channels[::1]
# Disconnect all channels in the workspace
for old_channel in old_channels:
# Deleting the old relationships between channels
# First delete the relationships where old_channel is the input
rel_old_channels = RelatedInOut.objects.filter(in_inout=old_channel)
for channel_delete in rel_old_channels:
channel_delete.delete()
# And then the relationships where old_channel is the output
rel_old_channels = RelatedInOut.objects.filter(out_inout=old_channel)
for channel_delete in rel_old_channels:
channel_delete.delete()
old_channel.in_set.clear()
old_channel.out_set.clear()
if old_channel.remote_subscription:
old_channel.remote_subscription.delete()
# Adding channels recreating JSON structure!
for channel_id in new_channels:
new_channel_data = new_channels[channel_id]
# Remote subscriptions!
remote_subscription = None
if new_channel_data.get("remote_subscription", None):
op_code = unicode(new_channel_data["remote_subscription"]["op_code"])
url = new_channel_data["remote_subscription"]["url"]
if op_code != "0":
remote_channel, created = RemoteChannel.objects.get_or_create(url=url)
data = dict()
data["url"] = url
data["id"] = remote_channel.id
rchannels_urls_to_ids.append(data)
remote_subscription = RemoteSubscription(operation_code=op_code, remote_channel=remote_channel)
remote_subscription.save()
if new_channel_data.get("provisional_id", False):
# It's necessary to create a new channel from scratch
filter = None
filter_params = None
if new_channel_data.get("filter_id", ""):
filter = Filter.objects.get(id=new_channel_data["filter_id"])
filter_params = new_channel_data["filter_params"]
channel = createChannel(
workspace, new_channel_data["name"], filter, filter_params, remote_subscription
)
# A channel has been generated. It's necessary to correlate provisional and final ids!
id_mapping[new_channel_data["id"]] = channel.id
else:
channel = InOut.objects.get(id=channel_id)
filter = None
filter_params = ""
if new_channel_data.get("filter", ""):
filter = Filter.objects.get(id=new_channel_data["filter"])
filter_params = json_encode(new_channel_data["filter_params"])
channel.remote_subscription = remote_subscription
channel.name = new_channel_data["name"]
channel.filter = filter
channel.filter_param_values = filter_params
channel.friend_code = ""
channel.save()
channelsDeletedByUser.remove(channel)
# In connections
# InOut out connections will be created later
for inputId in new_channel_data.get("ins", []):
connectable = In.objects.get(variable__id=inputId)
connectable.inouts.add(channel)
connectable.save()
# Out connections
# InOut out connections will be created later
for outputId in new_channel_data.get("outs", []):
connectable = Out.objects.get(variable__id=outputId)
connectable.inouts.add(channel)
connectable.save()
# Now it is time to recreate channel to channel connections
for channel_id in new_channels:
new_channel_data = new_channels[channel_id]
inout_id = new_channel_data["id"]
if new_channel_data["provisional_id"]:
inout_id = id_mapping[inout_id]
channel = InOut.objects.get(id=inout_id)
for inout_to_add in new_channel_data.get("inouts", []):
inout_id = inout_to_add["id"]
# search final id if needed
if inout_to_add["provisional_id"]:
inout_id = id_mapping[inout_id]
relationship = RelatedInOut(in_inout=channel, out_inout=InOut.objects.get(id=inout_id))
relationship.save()
for deleted_channel_id in channelsDeletedByUser:
deleteChannel(deleted_channel_id)
json_result = {"ids": id_mapping, "urls": rchannels_urls_to_ids}
return HttpResponse(json_encode(json_result), mimetype="application/json; charset=UTF-8")
except Exception, e:
msg = _("connectables cannot be saved: %(exc)s") % {"exc": e}
raise TracedServerError(e, json, request, msg)
def update(self, request, workspace_id):
user = get_user_authentication(request)
# Gets all needed parameters from request
if "json" in request.POST:
json = simplejson.loads(request.POST["json"])
else:
return HttpResponseBadRequest(_(u"JSON parameter expected"))
workspace = get_object_or_404(WorkSpace, id=workspace_id)
if not user.is_staff and workspace.creator != user:
return HttpResponseForbidden()
id_mapping = {}
# Phase 1: Additions
channels_to_add = json["channelsToAdd"]
for new_channel in channels_to_add:
channel = createChannel(workspace, new_channel["name"], filter=None, filter_params=None, friend_code="")
id_mapping[new_channel["id"]] = channel.id
# Phase 2: Updates
channels_to_update = json["channelsToUpdate"]
for current_channel_data in channels_to_update:
current_channel_id = current_channel_data["id"]
# search final id if needed
if current_channel_data["provisional_id"]:
current_channel_id = id_mapping[current_channel_id]["cid"]
current_channel = InOut.objects.get(id=current_channel_data["id"])
for input_to_add in current_channel_data["inputsToRemove"]:
connectable = In.objects.get(id=input_to_add["id"])
connectable.inouts.add(current_channel)
connectable.save()
for input_to_remove in current_channel_data["inputsToRemove"]:
connectable = In.objects.get(id=input_to_add["id"])
connectable.inouts.remove(current_channel)
connectable.save()
for output_to_add in current_channel_data["outputsToRemove"]:
connectable = Out.objects.get(id=output_to_add["id"])
connectable.inouts.add(current_channel)
connectable.save()
for output_to_remove in current_channel_data["outputsToRemove"]:
connectable = Out.objects.get(id=output_to_add["id"])
connectable.inouts.remove(current_channel)
connectable.save()
for inout_to_add in current_channel_data["inoutsToRemove"]:
inout_id = input_to_add["id"]
# search final id if needed
if inout_to_add["provisional_id"]:
inout_id = id_mapping[inout_id]
relationship = RelatedInOut(in_inout=current_channel, out_inout=InOut.objects.get(id=inout_id))
relationship.save()
for output_to_remove in current_channel_data["outputsToRemove"]:
inout_id = input_to_add["id"]
# search final id if needed
if inout_to_add["provisional_id"]:
inout_id = id_mapping[inout_id]
relationship = RelatedInOut.objects.get(in_inout=current_channel, out_inout=inout_id)
relationship.delete()
# Phase 3: Deletions
channels_to_remove = json["channelsToRemove"]
for current_channel_data in channels_to_remove:
channel = InOut.objects.get(id=current_channel_data["id"])
deleteChannel(channel)
json_result = {"id_mapping": id_mapping}
return HttpResponse(json_encode(json_result), mimetype="application/json; charset=UTF-8")
