def createChannel(workspace,
name,
filter=None,
filter_params={},
remote_subscription=None):
# Creating abstract variable
new_abstract_variable = AbstractVariable(type="WORKSPACE", name=name)
new_abstract_variable.save()
# Creating variable value
new_variable_value = VariableValue(user=workspace.creator,
value="",
abstract_variable=new_abstract_variable)
new_variable_value.save()
new_ws_variable = WorkSpaceVariable(
workspace=workspace,
abstract_variable=new_abstract_variable,
aspect="CHANNEL")
new_ws_variable.save()
fparam_values = ''
if filter is not None:
fparam_values = json_encode(filter_params)
channel = InOut(name=name,
remote_subscription=remote_subscription,
workspace_variable=new_ws_variable,
filter=filter,
filter_param_values=fparam_values,
friend_code="")
channel.save()
return channel
def createChannel(workspace, name, filter=None, filter_params={}, remote_subscription=None):
fparam_values = ""
if filter is not None:
fparam_values = json_encode(filter_params)
channel = InOut(
workspace=workspace,
name=name,
remote_subscription=remote_subscription,
filter=filter,
filter_param_values=fparam_values,
friend_code="",
)
channel.save()
return channel
def createChannel(workspace, name, filter=None, filter_params={}, remote_subscription=None):
# Creating abstract variable
new_abstract_variable = AbstractVariable(type="WORKSPACE", name=name)
new_abstract_variable.save()
# Creating variable value
new_variable_value = VariableValue(user=workspace.creator, value="", abstract_variable=new_abstract_variable)
new_variable_value.save()
new_ws_variable = WorkSpaceVariable(workspace=workspace, abstract_variable=new_abstract_variable, aspect="CHANNEL")
new_ws_variable.save()
fparam_values = ''
if filter is not None:
fparam_values = json_encode(filter_params)
channel = InOut(name=name, remote_subscription=remote_subscription, workspace_variable=new_ws_variable, filter=filter, filter_param_values=fparam_values, friend_code="")
channel.save()
return channel
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, user_name, screen_id=None):
user = user_authentication(user_name)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest('json parameter expected')
#TODO Remove this. Sets user screen by default
if not screen_id:
screen_id = 1
try:
#Gets current user screen
screen = Screen.objects.get(user=user, code=screen_id)
igadgets = json['iGadgetList']
for igadget in igadgets:
igadget_object = IGadget.objects.get(screen=screen,
code=igadget['id'])
# Save all IGadget connections (in and out variables)
for var in igadget['list']:
var_object = Variable.objects.get(uri=var['uri'],
vardef__name=var['name'],
igadget=igadget_object)
# Remove existed connections
Out.objects.filter(variable=var_object).delete()
In.objects.filter(variable=var_object).delete()
# Saves IN connection
if var['aspect'] == 'EVEN':
uri_in = "/user/%s/igadgets/%s/in/%s" % (
user_name, igadget_object.code, var['name'])
in_object = In(uri=uri_in,
name=var['name'],
variable=var_object)
in_object.save()
# Saves OUT connection
if var['aspect'] == 'SLOT':
uri_out = "/user/%s/igadgets/%s/out/%s" % (
user_name, igadget_object.code, var['name'])
out_object = Out(uri=uri_out,
name=var['name'],
variable=var_object)
out_object.save()
# Delete channels
InOut.objects.filter(user=user).delete()
# Saves all channels
for inout in json['inOutList']:
inout_object = None
inout_object = InOut(user=user,
uri=inout['uri'],
name=inout['name'],
friend_code=inout['friend_code'],
value=inout['value'])
inout_object.save()
# Saves all channel inputs
for ins in inout['ins']:
igadget_object = IGadget.objects.get(screen=screen,
code=ins['igadget'])
var_object = Variable.objects.get(vardef__name=ins['name'],
igadget=igadget_object)
connected_in = In.objects.get(variable=var_object)
connected_in.inout.add(inout_object)
# Saves all channel outputs
for out in inout['outs']:
igadget_object = IGadget.objects.get(screen=screen,
code=out['igadget'])
var_object = Variable.objects.get(vardef__name=out['name'],
igadget=igadget_object)
connected_out = Out.objects.get(variable=var_object)
connected_out.inout.add(inout_object)
transaction.commit()
return HttpResponse('ok')
except Screen.DoesNotExist:
transaction.rollback()
return HttpResponseBadRequest('refered screen (' + screen_id +
') doesn\'t exists.')
except IGadget.DoesNotExist:
transaction.rollback()
return HttpResponseBadRequest('refered igadget doesn\'t exists.')
except Variable.DoesNotExist:
transaction.rollback()
return HttpResponseBadRequest('refered variable doesn\'t exists.')
except Exception, e:
transaction.rollback()
return HttpResponseBadRequest('connectables cannot be save: %s' %
e)
def create(self, request, workspace_id):
user = get_user_authentication(request)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest (_(u'JSON parameter expected'))
try:
workspace = WorkSpace.objects.get(id=workspace_id)
#Mapping between provisional ids and database-generated ids!!!
ids_mapping = []
# Erasing variables associated with channels deleted explicitly by the user
channelsDeletedByUser = json['channelsForRemoving']
for deleted_channel_id in channelsDeletedByUser:
#Removing workspace_variable and abstract_variable of channels deleted explicitly by user
deleted_channel = InOut.objects.get(id=deleted_channel_id)
deleted_channel.workspace_variable.abstract_variable.delete()
deleted_channel.workspace_variable.delete()
# Erasing all channels of the workspace!!
old_channels = InOut.objects.filter(workspace_variable__workspace=workspace)
if (old_channels):
old_channels.delete()
# Adding channels recreating JSON structure!
new_channels = json['inOutList']
for new_channel_data in new_channels:
if (new_channel_data['provisional_id']):
#It's necessary to create all objects!
new_abstract_variable = AbstractVariable(type="WORKSPACE", name=new_channel_data['name'], value="")
new_abstract_variable.save()
new_ws_variable = WorkSpaceVariable(workspace=workspace, abstract_variable=new_abstract_variable, aspect="CHANNEL")
new_ws_variable.save()
channel = InOut(name=new_channel_data['name'], workspace_variable=new_ws_variable, friend_code="")
channel.save()
#A channel has been generated. It's necessary to correlate provisional and definitive ids!
id_mapping = {}
id_mapping['id'] = channel.id;
id_mapping['provisional_id'] = new_channel_data['id'];
id_mapping['var_id'] = new_ws_variable.id;
ids_mapping.append(id_mapping);
else:
#WorkSpaceVariable objects is still in database, it's only necessary to link it!
workspace_variable = WorkSpaceVariable.objects.get(id=new_channel_data['var_id'])
workspace_variable.abstract_variable.name = new_channel_data['name']
workspace_variable.abstract_variable.save()
channel = InOut(id=new_channel_data['id'], name=new_channel_data['name'], workspace_variable=workspace_variable, friend_code="")
channel.save()
#Setting channel connections!
#In connections
ins = new_channel_data['ins']
for input in ins:
if input['connectable_type'] == 'in':
connectable = In.objects.get(id=input['id'])
if input['connectable_type'] == 'inout':
connectable = InOut.objects.get(id=input['id'])
connectable.inouts.add(channel);
connectable.save()
#Out connections
outs = new_channel_data['outs']
for output in outs:
if output['connectable_type'] == 'out':
connectable = Out.objects.get(id=output['id'])
if output['connectable_type'] == 'inout':
connectable = InOut.objects.get(id=output['id'])
connectable.inouts.add(channel);
connectable.save()
# Saves all channels
transaction.commit()
json_result = {'ids': ids_mapping}
return HttpResponse (json_encode(json_result), mimetype='application/json; charset=UTF-8')
except WorkSpace.DoesNotExist:
transaction.rollback()
msg = _('referred workspace %(workspace_name)s does not exist.') % {'workspace_name': workspace_name}
log(msg, request)
return HttpResponseBadRequest(get_xml_error(msg));
except Exception, e:
transaction.rollback()
msg = _('connectables cannot be saved: %(exc)s') % {'exc': e}
log(msg, request)
return HttpResponseBadRequest(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)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest (_(u'JSON parameter expected'))
try:
workspace = WorkSpace.objects.get(id=workspace_id)
# Mapping between provisional ids and database-generated ids!!!
id_mapping = {}
# Erasing variables associated with channels deleted explicitly by the user
channelsDeletedByUser = json['channelsForRemoving']
for deleted_channel_id in channelsDeletedByUser:
#Removing workspace_variable and abstract_variable of channels deleted explicitly by user
deleted_channel = InOut.objects.get(id=deleted_channel_id)
#Remove the related In and Out values
related_ins = deleted_channel.in_set.all()
for rel_in in related_ins:
varValue = VariableValue.objects.get(user=user, abstract_variable=rel_in.variable.abstract_variable)
varValue.value = None
varValue.save()
related_outs = deleted_channel.out_set.all()
for rel_out in related_outs:
varValue = VariableValue.objects.get(user=user, abstract_variable=rel_out.abstract_variable)
varValue.value = None
varValue.save()
abstract_variable = deleted_channel.workspace_variable.abstract_variable
VariableValue.objects.get(user=user, abstract_variable=abstract_variable).delete()
abstract_variable.delete()
deleted_channel.workspace_variable.delete()
if deleted_channel.remote_subscription:
deleted_channel.remote_subscription.delete()
# Erasing all channels of the workspace!!
old_channels = InOut.objects.filter(workspace_variable__workspace=workspace)
old_channels_info = {}
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 its info to the list of old channels
channel_info = {}
old_ins_aux = old_channel.in_set.all()
channel_info["ins"] = []
for in_aux in old_ins_aux:
channel_info["ins"].append(in_aux.id)
old_outs_aux = old_channel.out_set.all()
channel_info["outs"] = []
for out_aux in old_outs_aux:
channel_info["outs"].append(out_aux.id)
old_channels_info[old_channel.id] = channel_info
# Now delete the current channel
old_channel.delete()
# Adding channels recreating JSON structure!
new_channels = json['inOutList']
for new_channel_data in new_channels:
channel_info = None
# Remote subscriptions!
remote_subscription = None
if new_channel_data['remote_subscription']:
op_code = unicode(new_channel_data['remote_subscription']['op_code'])
url = new_channel_data['remote_subscription']['url']
if op_code != '0':
remote_subscription = RemoteSubscription(operation_code=op_code, url=url)
remote_subscription.save()
if (new_channel_data['provisional_id']):
#It's necessary to create all objects!
#Creating abstract variable
new_abstract_variable = AbstractVariable(type="WORKSPACE", name=new_channel_data['name'])
new_abstract_variable.save()
#Creating variable value
new_variable_value = VariableValue(user=user, value="", abstract_variable=new_abstract_variable)
new_variable_value.save()
new_ws_variable = WorkSpaceVariable(workspace=workspace, abstract_variable=new_abstract_variable, aspect="CHANNEL")
new_ws_variable.save()
filter = None
fparam_values = None
if new_channel_data['filter']:
try:
filter = Filter.objects.get(id=new_channel_data['filter'])
fparam_values = json_encode(new_channel_data['filter_params'])
except Filter.DoesNotExist:
pass
channel = InOut(name=new_channel_data['name'], remote_subscription=remote_subscription, workspace_variable=new_ws_variable, filter=filter, filter_param_values=fparam_values, friend_code="")
channel.save()
# A channel has been generated. It's necessary to correlate provisional and definitive ids!
id_mapping[new_channel_data['id']] = {'new_id': channel.id, 'new_wv_id': new_ws_variable.id}
channel_info = None
else:
#WorkSpaceVariable objects is still in database, it's only necessary to link it!
workspace_variable = WorkSpaceVariable.objects.get(id=new_channel_data['var_id'])
workspace_variable.abstract_variable.name = new_channel_data['name']
workspace_variable.abstract_variable.save()
try:
filter = Filter.objects.get(id=new_channel_data['filter'])
fparam_values = json_encode(new_channel_data['filter_params'])
except Filter.DoesNotExist:
filter = None
fparam_values = None
channel = InOut(id=new_channel_data['id'], remote_subscription=remote_subscription, name=new_channel_data['name'], workspace_variable=workspace_variable, filter=filter, filter_param_values=fparam_values, friend_code="")
channel.save()
channel_info = old_channels_info[new_channel_data['id']]
# In connections
# InOut out connections will be created later
old_ins = None
if channel_info:
old_ins = channel_info["ins"]
ins = new_channel_data['ins']
for inputId in ins:
connectable = In.objects.get(id=inputId)
connectable.inouts.add(channel);
connectable.save()
if old_ins:
#clean the old_ins list
for old_in in old_ins:
if old_in == inputId:
old_ins.remove(old_in)
break
if old_ins:
#check if there is any old In not present now to initialize its value
for old_in in old_ins:
real_old_in = In.objects.get(id=old_in)
varValue = VariableValue.objects.get(user=user, abstract_variable=real_old_in.variable.abstract_variable)
varValue.value = None
varValue.save()
# Out connections
# InOut out connections will be created later
old_outs = None
if channel_info:
old_outs = channel_info["outs"]
outs = new_channel_data['outs']
for outputId in outs:
connectable = Out.objects.get(id=outputId)
connectable.inouts.add(channel);
connectable.save()
if old_outs:
#clean the old_ins list
for old_out in old_outs:
if old_out == outputId:
old_outs.remove(old_out)
break
if old_outs:
#check if there is any old Out not present now to initialize its value
for old_out in old_outs:
real_old_out = Out.objects.get(id=old_out)
varValue = VariableValue.objects.get(user=user, abstract_variable=real_old_out.abstract_variable)
varValue.value = ""
varValue.save()
# Now it is time to recreate channel to channel connections
for new_channel_data in new_channels:
channel = InOut(id=new_channel_data['id'])
inouts = new_channel_data['inouts']
for inout_to_add in 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()
json_result = {'ids': id_mapping}
return HttpResponse (json_encode(json_result), mimetype='application/json; charset=UTF-8')
except WorkSpace.DoesNotExist, e:
msg = _('referred workspace (id: %(workspace_id)s) does not exist.') % {'workspace_id': workspace_id}
raise TracedServerError(e, json, request, msg)
def update(self, request, workspace_id):
user = get_user_authentication(request)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest (_(u'JSON parameter expected'))
try:
workspace = WorkSpace.objects.get(id=workspace_id)
except WorkSpace.DoesNotExist:
msg = _('referred workspace %(workspace_name)s does not exist.') % {'workspace_name': workspace_name}
raise TracedServerError(e, json, request, msg)
id_mapping = {}
# Pashe 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_data['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}
# Pashe 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()
# Pashe 3: Deletions
channels_to_remove = json['channelsToRemove']
for current_channel_data in channels_to_remove:
channel = InOut.objects.get(id=current_channel_data['id'])
abstract_variable = channel.workspace_variable.abstract_variable
VariableValue.objects.get(user=user, abstract_variable=abstract_variable).delete()
abstract_variable.delete()
channel.workspace_variable.delete()
channel.delete()
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)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest(_(u'JSON parameter expected'))
try:
workspace = WorkSpace.objects.get(id=workspace_id)
#Mapping between provisional ids and database-generated ids!!!
ids_mapping = []
# Erasing variables associated with channels deleted explicitly by the user
channelsDeletedByUser = json['channelsForRemoving']
for deleted_channel_id in channelsDeletedByUser:
#Removing workspace_variable and abstract_variable of channels deleted explicitly by user
deleted_channel = InOut.objects.get(id=deleted_channel_id)
abstract_variable = deleted_channel.workspace_variable.abstract_variable
VariableValue.objects.get(
user=user, abstract_variable=abstract_variable).delete()
abstract_variable.delete()
deleted_channel.workspace_variable.delete()
# Erasing all channels of the workspace!!
old_channels = InOut.objects.filter(
workspace_variable__workspace=workspace)
if (old_channels):
old_channels.delete()
# Adding channels recreating JSON structure!
new_channels = json['inOutList']
for new_channel_data in new_channels:
if (new_channel_data['provisional_id']):
#It's necessary to create all objects!
#Creating abstract variable
new_abstract_variable = AbstractVariable(
type="WORKSPACE", name=new_channel_data['name'])
new_abstract_variable.save()
#Creating variable value
new_variable_value = VariableValue(
user=user,
value="",
abstract_variable=new_abstract_variable)
new_variable_value.save()
new_ws_variable = WorkSpaceVariable(
workspace=workspace,
abstract_variable=new_abstract_variable,
aspect="CHANNEL")
new_ws_variable.save()
channel = InOut(name=new_channel_data['name'],
workspace_variable=new_ws_variable,
friend_code="")
channel.save()
#A channel has been generated. It's necessary to correlate provisional and definitive ids!
id_mapping = {}
id_mapping['id'] = channel.id
id_mapping['provisional_id'] = new_channel_data['id']
id_mapping['var_id'] = new_ws_variable.id
ids_mapping.append(id_mapping)
else:
#WorkSpaceVariable objects is still in database, it's only necessary to link it!
workspace_variable = WorkSpaceVariable.objects.get(
id=new_channel_data['var_id'])
workspace_variable.abstract_variable.name = new_channel_data[
'name']
workspace_variable.abstract_variable.save()
channel = InOut(id=new_channel_data['id'],
name=new_channel_data['name'],
workspace_variable=workspace_variable,
friend_code="")
channel.save()
#Setting channel connections!
#In connections
ins = new_channel_data['ins']
for input in ins:
if input['connectable_type'] == 'in':
connectable = In.objects.get(id=input['id'])
if input['connectable_type'] == 'inout':
connectable = InOut.objects.get(id=input['id'])
connectable.inouts.add(channel)
connectable.save()
#Out connections
outs = new_channel_data['outs']
for output in outs:
if output['connectable_type'] == 'out':
connectable = Out.objects.get(id=output['id'])
if output['connectable_type'] == 'inout':
connectable = InOut.objects.get(id=output['id'])
connectable.inouts.add(channel)
connectable.save()
# Saves all channels
transaction.commit()
json_result = {'ids': ids_mapping}
return HttpResponse(json_encode(json_result),
mimetype='application/json; charset=UTF-8')
except WorkSpace.DoesNotExist:
transaction.rollback()
msg = _(
'referred workspace %(workspace_name)s does not exist.') % {
'workspace_name': workspace_name
}
log(msg, request)
return HttpResponseBadRequest(get_xml_error(msg))
except Exception, e:
transaction.rollback()
msg = _('connectables cannot be saved: %(exc)s') % {'exc': e}
log(msg, request)
return HttpResponseBadRequest(msg)
def create(self, request, workspace_id):
user = get_user_authentication(request)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest (_(u'JSON parameter expected'))
try:
workspace = WorkSpace.objects.get(id=workspace_id)
# Mapping between provisional ids and database-generated ids!!!
id_mapping = {}
# Erasing variables associated with channels deleted explicitly by the user
channelsDeletedByUser = json['channelsForRemoving']
for deleted_channel_id in channelsDeletedByUser:
#Removing workspace_variable and abstract_variable of channels deleted explicitly by user
deleted_channel = InOut.objects.get(id=deleted_channel_id)
abstract_variable = deleted_channel.workspace_variable.abstract_variable
VariableValue.objects.get(user=user, abstract_variable=abstract_variable).delete()
abstract_variable.delete()
deleted_channel.workspace_variable.delete()
# Erasing all channels of the workspace!!
old_channels = InOut.objects.filter(workspace_variable__workspace=workspace)
if old_channels:
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)
if rel_old_channels:
rel_old_channels.delete()
# And then the relationships where old_channel is the output
rel_old_channels = RelatedInOut.objects.filter(out_inout=old_channel)
if rel_old_channels:
rel_old_channels.delete()
old_channels.delete()
# Adding channels recreating JSON structure!
new_channels = json['inOutList']
for new_channel_data in new_channels:
if (new_channel_data['provisional_id']):
#It's necessary to create all objects!
#Creating abstract variable
new_abstract_variable = AbstractVariable(type="WORKSPACE", name=new_channel_data['name'])
new_abstract_variable.save()
#Creating variable value
new_variable_value = VariableValue(user=user, value="", abstract_variable=new_abstract_variable)
new_variable_value.save()
new_ws_variable = WorkSpaceVariable(workspace=workspace, abstract_variable=new_abstract_variable, aspect="CHANNEL")
new_ws_variable.save()
filter = None
fparam_values = None
if new_channel_data['filter']:
try:
filter = Filter.objects.get(id=new_channel_data['filter'])
fparam_values = new_channel_data['filter_params']
except Filter.DoesNotExist:
pass
channel = InOut(name=new_channel_data['name'], workspace_variable=new_ws_variable, filter=filter, filter_param_values=fparam_values, friend_code="")
channel.save()
# A channel has been generated. It's necessary to correlate provisional and definitive ids!
id_mapping[new_channel_data['id']] = {'new_id': channel.id, 'new_wv_id': new_ws_variable.id}
else:
#WorkSpaceVariable objects is still in database, it's only necessary to link it!
workspace_variable = WorkSpaceVariable.objects.get(id=new_channel_data['var_id'])
workspace_variable.abstract_variable.name = new_channel_data['name']
workspace_variable.abstract_variable.save()
try:
filter = Filter.objects.get(id=new_channel_data['filter'])
fparam_values = new_channel_data['filter_params']
except Filter.DoesNotExist:
filter = None
fparam_values = None
channel = InOut(id=new_channel_data['id'], name=new_channel_data['name'], workspace_variable=workspace_variable, filter=filter, filter_param_values=fparam_values, friend_code="")
channel.save()
# In connections
# InOut out connections will be created later
ins = new_channel_data['ins']
for inputId in ins:
connectable = In.objects.get(id=inputId)
connectable.inouts.add(channel);
connectable.save()
# Out connections
# InOut out connections will be created later
outs = new_channel_data['outs']
for outputId in outs:
connectable = Out.objects.get(id=outputId)
connectable.inouts.add(channel);
connectable.save()
# Now it is time to recreate channel to channel connections
for new_channel_data in new_channels:
inouts = new_channel_data['inouts']
for inout_to_add in 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()
# Saves all channels
#transaction.commit()
json_result = {'ids': id_mapping}
return HttpResponse (json_encode(json_result), mimetype='application/json; charset=UTF-8')
except WorkSpace.DoesNotExist:
msg = _('referred workspace %(workspace_name)s does not exist.') % {'workspace_name': workspace_name}
raise TracedServerError(e, json, request, msg)
except Exception, e:
msg = _('connectables cannot be saved: %(exc)s') % {'exc': e}
raise TracedServerError(e, json, request, msg)
def create(self, request, user_name, screen_id=None):
user = user_authentication(user_name)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest (_(u'JSON parameter expected'))
#TODO Remove this. Sets user screen by default
if not screen_id:
screen_id = 1
try:
#Gets current user screen
screen = Screen.objects.get(user=user, code=screen_id)
igadgets = json['iGadgetList']
for igadget in igadgets:
igadget_object = IGadget.objects.get(screen=screen, code=igadget['id'])
# Save all IGadget connections (in and out variables)
for var in igadget['list']:
var_object = Variable.objects.get(uri=var['uri'], vardef__name=var['name'], igadget=igadget_object)
# Remove existed connections
Out.objects.filter(variable=var_object).delete()
In.objects.filter(variable=var_object).delete()
# Saves IN connection
if var['aspect'] == 'EVEN':
uri_in = "/user/%s/igadgets/%s/in/%s" % (user_name, igadget_object.code, var['name'])
in_object = In(uri=uri_in, name=var['name'], variable=var_object)
in_object.save()
# Saves OUT connection
if var['aspect'] == 'SLOT':
uri_out = "/user/%s/igadgets/%s/out/%s" % (user_name, igadget_object.code, var['name'])
out_object = Out(uri=uri_out, name=var['name'], variable=var_object)
out_object.save()
# Delete channels
InOut.objects.filter(user=user).delete()
# Saves all channels
for inout in json['inOutList']:
inout_object = None
inout_object = InOut(user=user, uri=inout['uri'], name=inout['name'], friend_code=inout['friend_code'], value=inout['value'])
inout_object.save()
# Saves all channel inputs
for ins in inout['ins']:
igadget_object = IGadget.objects.get(screen=screen, code=ins['igadget'])
var_object = Variable.objects.get(vardef__name=ins['name'], igadget=igadget_object)
connected_in = In.objects.get(variable=var_object)
connected_in.inout.add(inout_object)
# Saves all channel outputs
for out in inout['outs']:
igadget_object = IGadget.objects.get(screen=screen, code=out['igadget'])
var_object = Variable.objects.get(vardef__name=out['name'], igadget=igadget_object)
connected_out = Out.objects.get(variable=var_object)
connected_out.inout.add(inout_object)
transaction.commit()
return HttpResponse ('ok')
except Screen.DoesNotExist:
transaction.rollback()
return HttpResponseBadRequest(_('refered screen %(screen_id)s doesn\'t exists.') % {'screen_id': screen_id})
except IGadget.DoesNotExist:
transaction.rollback()
return HttpResponseBadRequest(_('refered igadget doesn\'t exists.'))
except Variable.DoesNotExist:
transaction.rollback()
return HttpResponseBadRequest(_('refered variable doesn\'t exists.'))
except Exception, e:
transaction.rollback()
return HttpResponseBadRequest(_('connectables cannot be save: %(exc)s') % {'exc': e})
def create(self, request, workspace_id):
user = get_user_authentication(request)
# Gets all needed parameters from request
if request.POST.has_key('json'):
json = simplejson.loads(request.POST['json'])
else:
return HttpResponseBadRequest(_(u'JSON parameter expected'))
try:
workspace = WorkSpace.objects.get(id=workspace_id)
# Mapping between provisional ids and database-generated ids!!!
id_mapping = {}
# Erasing variables associated with channels deleted explicitly by the user
channelsDeletedByUser = json['channelsForRemoving']
for deleted_channel_id in channelsDeletedByUser:
#Removing workspace_variable and abstract_variable of channels deleted explicitly by user
deleted_channel = InOut.objects.get(id=deleted_channel_id)
abstract_variable = deleted_channel.workspace_variable.abstract_variable
VariableValue.objects.get(
user=user, abstract_variable=abstract_variable).delete()
abstract_variable.delete()
deleted_channel.workspace_variable.delete()
# Erasing all channels of the workspace!!
old_channels = InOut.objects.filter(
workspace_variable__workspace=workspace)
if old_channels:
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)
if rel_old_channels:
rel_old_channels.delete()
# And then the relationships where old_channel is the output
rel_old_channels = RelatedInOut.objects.filter(
out_inout=old_channel)
if rel_old_channels:
rel_old_channels.delete()
old_channels.delete()
# Adding channels recreating JSON structure!
new_channels = json['inOutList']
for new_channel_data in new_channels:
if (new_channel_data['provisional_id']):
#It's necessary to create all objects!
#Creating abstract variable
new_abstract_variable = AbstractVariable(
type="WORKSPACE", name=new_channel_data['name'])
new_abstract_variable.save()
#Creating variable value
new_variable_value = VariableValue(
user=user,
value="",
abstract_variable=new_abstract_variable)
new_variable_value.save()
new_ws_variable = WorkSpaceVariable(
workspace=workspace,
abstract_variable=new_abstract_variable,
aspect="CHANNEL")
new_ws_variable.save()
filter = None
fparam_values = None
if new_channel_data['filter']:
try:
filter = Filter.objects.get(
id=new_channel_data['filter'])
fparam_values = new_channel_data['filter_params']
except Filter.DoesNotExist:
pass
channel = InOut(name=new_channel_data['name'],
workspace_variable=new_ws_variable,
filter=filter,
filter_param_values=fparam_values,
friend_code="")
channel.save()
# A channel has been generated. It's necessary to correlate provisional and definitive ids!
id_mapping[new_channel_data['id']] = {
'new_id': channel.id,
'new_wv_id': new_ws_variable.id
}
else:
#WorkSpaceVariable objects is still in database, it's only necessary to link it!
workspace_variable = WorkSpaceVariable.objects.get(
id=new_channel_data['var_id'])
workspace_variable.abstract_variable.name = new_channel_data[
'name']
workspace_variable.abstract_variable.save()
try:
filter = Filter.objects.get(
id=new_channel_data['filter'])
fparam_values = new_channel_data['filter_params']
except Filter.DoesNotExist:
filter = None
fparam_values = None
channel = InOut(id=new_channel_data['id'],
name=new_channel_data['name'],
workspace_variable=workspace_variable,
filter=filter,
filter_param_values=fparam_values,
friend_code="")
channel.save()
# In connections
# InOut out connections will be created later
ins = new_channel_data['ins']
for inputId in ins:
connectable = In.objects.get(id=inputId)
connectable.inouts.add(channel)
connectable.save()
# Out connections
# InOut out connections will be created later
outs = new_channel_data['outs']
for outputId in outs:
connectable = Out.objects.get(id=outputId)
connectable.inouts.add(channel)
connectable.save()
# Now it is time to recreate channel to channel connections
for new_channel_data in new_channels:
inouts = new_channel_data['inouts']
for inout_to_add in 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()
# Saves all channels
#transaction.commit()
json_result = {'ids': id_mapping}
return HttpResponse(json_encode(json_result),
mimetype='application/json; charset=UTF-8')
except WorkSpace.DoesNotExist:
msg = _(
'referred workspace %(workspace_name)s does not exist.') % {
'workspace_name': workspace_name
}
raise TracedServerError(e, json, request, msg)
except Exception, e:
msg = _('connectables cannot be saved: %(exc)s') % {'exc': e}
raise TracedServerError(e, json, request, msg)