def post(self, request, graph_slug, type_slug, format=None):
"""
Create a new node of a type for each element from data
"""
graph = get_object_or_404(Graph, slug=graph_slug)
self.check_object_permissions(self.request, graph)
nodetype = get_object_or_404(NodeType,
slug=type_slug,
schema__graph__slug=graph_slug)
# We get the post data
data = request.data
if isinstance(data, (str, unicode)):
# We check if we need to deserialize the object
data = json.loads(data)
nodes_ids = []
transaction_ok = True
# We have in data a list of elements to create as new
for node_data in data:
node_form = NodeForm(graph=graph,
itemtype=nodetype,
data=node_data,
user=request.user.username)
if node_data and node_form.is_valid():
with transaction.atomic():
new_node = node_form.save()
nodes_ids.append(new_node.id)
else:
transaction_ok = False
break
if transaction_ok:
return Response(nodes_ids, status=status.HTTP_201_CREATED)
else:
return Response(node_form.errors,
status=status.HTTP_400_BAD_REQUEST)
def nodes_edit(request, graph_slug, node_id):
graph = get_object_or_404(Graph, slug=graph_slug)
node = graph.nodes.get(node_id)
nodetype = get_object_or_404(NodeType, id=node.label)
try:
media_node = MediaNode.objects.get(node_id=node.id, data=graph.data)
except MediaNode.DoesNotExist:
media_node = MediaNode()
except MediaNode.MultipleObjectsReturned:
media_nodes = MediaNode.objects.filter(node_id=node.id,
data=graph.data)
media_node = media_nodes.latest("id")
if request.POST:
data = request.POST.copy()
mediafile_formset = MediaFileFormSet(instance=media_node,
data=data,
files=request.FILES,
prefix="__files")
medialink_formset = MediaLinkFormSet(instance=media_node,
data=data,
files=request.FILES,
prefix="__links")
else:
data = None
mediafile_formset = MediaFileFormSet(instance=media_node,
data=data,
prefix="__files")
medialink_formset = MediaLinkFormSet(instance=media_node,
data=data,
prefix="__links")
node_initial = node.properties.copy()
node_initial.update({ITEM_FIELD_NAME: node.id})
node_form = NodeForm(graph=graph,
itemtype=nodetype,
initial=node_initial,
data=data,
user=request.user.username)
# Outgoing relationships
# initial = []
# for relationship in node.relationships.all():
# properties = relationship.properties
# outgoing_type = RelationshipType.objects.get(id=relationship.label)
# properties.update({
# outgoing_type.id: relationship.target.id,
# ITEM_FIELD_NAME: relationship.id,
# })
# initial.append(properties)
prefixes = []
outgoing_formsets = SortedDict()
allowed_outgoing_relationships = nodetype.get_outgoing_relationships(
reflexive=True)
for relationship in allowed_outgoing_relationships:
initial = []
graph_relationships = node.relationships.filter(label=relationship.id)
for graph_relationship in graph_relationships:
# Only show outgoing relationships even if it is reflexive
if graph_relationship.target.id != node.id:
properties = graph_relationship.properties
properties.update({
relationship.id: graph_relationship.target.id,
ITEM_FIELD_NAME: graph_relationship.id,
})
initial.append(properties)
arity = relationship.arity_target
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "o_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"→ %s (%s)" % (relationship.name, relationship.target.name)
})
outgoing_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
related_node=node,
direction=TARGET,
prefix=formset_prefix,
initial=initial,
data=data,
user=request.user.username)
outgoing_formsets[formset_prefix] = outgoing_formset
# Incoming relationships
# initial = []
# for relationship in node.relationships.all():
# properties = relationship.properties
# incoming_type = RelationshipType.objects.get(id=relationship.label)
# properties.update({
# incoming_type.id: relationship.source.id,
# ITEM_FIELD_NAME: relationship.id,
# })
# initial.append(properties)
incoming_formsets = SortedDict()
allowed_incoming_relationships = nodetype.get_incoming_relationships(
reflexive=True)
for relationship in allowed_incoming_relationships:
initial = []
graph_relationships = node.relationships.filter(label=relationship.id)
for graph_relationship in graph_relationships:
# Only show incoming relationships even if it is reflexive
if graph_relationship.source.id != node.id:
properties = graph_relationship.properties
properties.update({
relationship.id: graph_relationship.source.id,
ITEM_FIELD_NAME: graph_relationship.id,
})
initial.append(properties)
arity = relationship.arity_source
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "i_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"← %s (%s)" % (relationship.name, relationship.source.name)
})
incoming_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
related_node=node,
direction=SOURCE,
prefix=formset_prefix,
initial=initial,
data=data,
user=request.user.username)
incoming_formsets[formset_prefix] = incoming_formset
# Save forms and formsets
if (data and node_form.is_valid() and mediafile_formset.is_valid()
and medialink_formset.is_valid()
and all([rf.is_valid() for rf in outgoing_formsets.values()])
and all([rf.is_valid() for rf in incoming_formsets.values()])):
with transaction.commit_manually():
try:
as_new = 'as-new' in request.POST
node = node_form.save(as_new=as_new)
for outgoing_formset in outgoing_formsets.values():
for outgoing_form in outgoing_formset.forms:
if not (outgoing_form.delete and as_new):
# The if statement saves execution time
outgoing_form.save(related_node=node,
as_new=as_new)
for incoming_formset in incoming_formsets.values():
for incoming_form in incoming_formset.forms:
if not (incoming_form.delete and as_new):
# The if statement saves execution time
incoming_form.save(related_node=node,
as_new=as_new)
if as_new:
mediafile_formset.forms = [
modify_media_form(form)
for form in mediafile_formset.forms
if can_media_save_as_new(form)
]
medialink_formset.forms = [
modify_media_form(form)
for form in medialink_formset.forms
if can_media_save_as_new(form)
]
mediafiles = mediafile_formset.save(commit=False)
medialinks = medialink_formset.save(commit=False)
# Manage files and links
if ((as_new or not media_node.pk)
and (mediafiles or medialinks)):
media_node = MediaNode.objects.create(node_id=node.id,
data=graph.data)
for mediafile in mediafiles:
mediafile.media_node = media_node
if as_new and mediafile.pk:
mediafile.pk = None
clone_file(mediafile)
mediafile.save()
for medialink in medialinks:
medialink.media_node = media_node
if as_new and medialink.pk:
medialink.pk = None
medialink.save()
if (media_node.pk and not media_node.files.exists()
and not media_node.links.exists()):
media_node.delete()
except:
transaction.rollback()
else:
transaction.commit()
redirect_url = reverse("nodes_list_full",
args=[graph.slug, nodetype.id])
return redirect(redirect_url)
return render_to_response('nodes_editcreate.html', {
"graph": graph,
"nodetype": nodetype,
"node_form": node_form,
"node": node,
"prefixes": prefixes,
"outgoing_formsets": outgoing_formsets,
"incoming_formsets": incoming_formsets,
"mediafile_formset": mediafile_formset,
"medialink_formset": medialink_formset,
"action": _("Edit"),
"delete": True,
"as_new": True
},
context_instance=RequestContext(request))
def nodes_create(request, graph_slug, node_type_id):
graph = get_object_or_404(Graph, slug=graph_slug)
nodetype = get_object_or_404(NodeType, id=node_type_id)
if not nodetype.schema.graph == graph:
raise Http404(_("Mismatch in requested graph and node type's graph."))
if request.POST:
data = request.POST.copy()
mediafile_formset = MediaFileFormSet(data=data,
files=request.FILES,
prefix="__files")
medialink_formset = MediaLinkFormSet(data=data,
files=request.FILES,
prefix="__links")
else:
data = None
mediafile_formset = MediaFileFormSet(prefix="__files")
medialink_formset = MediaLinkFormSet(prefix="__links")
node_form = NodeForm(graph=graph,
itemtype=nodetype,
data=data,
user=request.user.username)
outgoing_formsets = SortedDict()
prefixes = []
for relationship in nodetype.outgoing_relationships.all():
arity = relationship.arity_target
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "o_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"→ %s (%s)" % (relationship.name, relationship.target.name)
})
outgoing_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
direction=TARGET,
prefix=formset_prefix,
data=data,
user=request.user.username)
outgoing_formsets[formset_prefix] = outgoing_formset
incoming_formsets = SortedDict()
for relationship in nodetype.incoming_relationships.all():
arity = relationship.arity_source
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "i_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"← %s (%s)" % (relationship.name, relationship.source.name)
})
incoming_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
direction=SOURCE,
prefix=formset_prefix,
data=data,
user=request.user.username)
incoming_formsets[formset_prefix] = incoming_formset
if (data and node_form.is_valid() and mediafile_formset.is_valid()
and medialink_formset.is_valid()
and all([rf.is_valid() for rf in outgoing_formsets.values()])
and all([rf.is_valid() for rf in incoming_formsets.values()])):
with transaction.commit_manually():
try:
node = node_form.save()
for outgoing_formset in outgoing_formsets.values():
for outgoing_form in outgoing_formset.forms:
outgoing_form.save(related_node=node)
for incoming_formset in incoming_formsets.values():
for incoming_form in incoming_formset.forms:
incoming_form.save(related_node=node)
# Manage files and links
mediafiles = mediafile_formset.save(commit=False)
medialinks = medialink_formset.save(commit=False)
if mediafiles or medialinks:
media_node = MediaNode.objects.create(node_id=node.id,
data=graph.data)
for mediafile in mediafiles:
mediafile.media_node = media_node
mediafile.save()
for medialink in medialinks:
medialink.media_node = media_node
medialink.save()
except:
transaction.rollback()
else:
transaction.commit()
redirect_url = reverse("nodes_list_full",
args=[graph.slug, node_type_id])
return redirect(redirect_url)
return render_to_response('nodes_editcreate.html', {
"graph": graph,
"nodetype": nodetype,
"node_form": node_form,
"prefixes": prefixes,
"outgoing_formsets": outgoing_formsets,
"incoming_formsets": incoming_formsets,
"mediafile_formset": mediafile_formset,
"medialink_formset": medialink_formset,
"action": u"%s %s" % (_("New"), nodetype.name)
},
context_instance=RequestContext(request))
def nodes_edit(request, graph_slug, node_id):
graph = get_object_or_404(Graph, slug=graph_slug)
node = graph.nodes.get(node_id)
nodetype = get_object_or_404(NodeType, id=node.label)
try:
media_node = MediaNode.objects.get(node_id=node.id, data=graph.data)
except MediaNode.MultipleObjectsReturned:
media_nodes = MediaNode.objects.filter(node_id=node.id,
data=graph.data)
media_node = media_nodes.latest("id")
except MediaNode.DoesNotExist:
media_node = MediaNode()
if request.POST:
data = request.POST.copy()
mediafile_formset = MediaFileFormSet(instance=media_node,
data=data,
files=request.FILES,
prefix="__files")
medialink_formset = MediaLinkFormSet(instance=media_node,
data=data,
files=request.FILES,
prefix="__links")
else:
data = None
mediafile_formset = MediaFileFormSet(instance=media_node,
data=data,
prefix="__files")
medialink_formset = MediaLinkFormSet(instance=media_node,
data=data,
prefix="__links")
node_initial = node.properties.copy()
node_initial.update({ITEM_FIELD_NAME: node.id})
node_form = NodeForm(itemtype=nodetype, initial=node_initial, data=data)
# Outgoing relationships
# initial = []
# for relationship in node.relationships.all():
# properties = relationship.properties
# outgoing_type = RelationshipType.objects.get(id=relationship.label)
# properties.update({
# outgoing_type.id: relationship.target.id,
# ITEM_FIELD_NAME: relationship.id,
# })
# initial.append(properties)
prefixes = []
outgoing_formsets = SortedDict()
allowed_outgoing_relationships = nodetype.outgoing_relationships.all()
for relationship in allowed_outgoing_relationships:
initial = []
graph_relationships = node.relationships.filter(label=relationship.id)
for graph_relationship in graph_relationships:
properties = graph_relationship.properties
properties.update({
relationship.id: graph_relationship.target.id,
ITEM_FIELD_NAME: graph_relationship.id,
})
initial.append(properties)
arity = relationship.arity_target
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "o_%s%s_%s" % (relationship.name, relationship.id,
relationship.target.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"→ %s (%s)" % (relationship.name, relationship.target.name)
})
outgoing_formset = RelationshipFormSet(itemtype=relationship,
instance=nodetype,
prefix=formset_prefix,
initial=initial,
data=data)
outgoing_formsets[formset_prefix] = outgoing_formset
# Incoming relationships
# initial = []
# for relationship in node.relationships.all():
# properties = relationship.properties
# incoming_type = RelationshipType.objects.get(id=relationship.label)
# properties.update({
# incoming_type.id: relationship.source.id,
# ITEM_FIELD_NAME: relationship.id,
# })
# initial.append(properties)
incoming_formsets = SortedDict()
allowed_incoming_relationships = nodetype.get_incoming_relationships()
for relationship in allowed_incoming_relationships:
initial = []
graph_relationships = node.relationships.filter(label=relationship.id)
for graph_relationship in graph_relationships:
properties = graph_relationship.properties
properties.update({
relationship.id: graph_relationship.source.id,
ITEM_FIELD_NAME: graph_relationship.id,
})
initial.append(properties)
arity = relationship.arity_source
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "i_%s%s_%s" % (relationship.name, relationship.id,
relationship.source.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"← %s (%s)" % (relationship.name, relationship.source.name)
})
incoming_formset = RelationshipFormSet(itemtype=relationship,
instance=nodetype,
prefix=formset_prefix,
initial=initial,
data=data)
incoming_formsets[formset_prefix] = incoming_formset
# Save forms and formsets
if (data and node_form.is_valid() and mediafile_formset.is_valid()
and medialink_formset.is_valid()
and all([rf.is_valid() for rf in outgoing_formsets.values()])
and all([rf.is_valid() for rf in incoming_formsets.values()])):
# TODO: This should be under a transaction
node = node_form.save()
for outgoing_formset in outgoing_formsets.values():
for outgoing_form in outgoing_formset.forms:
outgoing_form.save(related_node=node)
for incoming_formset in incoming_formsets.values():
for incoming_form in incoming_formset.forms:
incoming_form.save(related_node=node)
mediafiles = mediafile_formset.save(commit=False)
# Manage files and links
for mediafile in mediafiles:
mediafile.media_node = media_node
mediafile.save()
medialinks = medialink_formset.save(commit=False)
for medialink in medialinks:
medialink.media_node = media_node
medialink.save()
redirect_url = reverse("nodes_list_full",
args=[graph.slug, nodetype.id])
return redirect(redirect_url)
return render_to_response('nodes_editcreate.html', {
"graph": graph,
"nodetype": nodetype,
"node_form": node_form,
"node": node,
"prefixes": prefixes,
"outgoing_formsets": outgoing_formsets,
"incoming_formsets": incoming_formsets,
"mediafile_formset": mediafile_formset,
"medialink_formset": medialink_formset,
"action": _("Edit"),
"delete": True
},
context_instance=RequestContext(request))
def nodes_edit(request, graph_slug, node_id):
graph = get_object_or_404(Graph, slug=graph_slug)
node = graph.nodes.get(node_id)
nodetype = get_object_or_404(NodeType, id=node.label)
try:
media_node = MediaNode.objects.get(node_id=node.id, data=graph.data)
except MediaNode.DoesNotExist:
media_node = MediaNode()
except MediaNode.MultipleObjectsReturned:
media_nodes = MediaNode.objects.filter(node_id=node.id,
data=graph.data)
media_node = media_nodes.latest("id")
if request.POST:
data = request.POST.copy()
as_modal = bool(data.get("asModal", False))
mediafile_formset = MediaFileFormSet(instance=media_node,
data=data,
files=request.FILES,
prefix="__files")
medialink_formset = MediaLinkFormSet(instance=media_node,
data=data,
files=request.FILES,
prefix="__links")
else:
data = None
as_modal = bool(request.GET.copy().get("asModal", False))
mediafile_formset = MediaFileFormSet(instance=media_node,
data=data,
prefix="__files")
medialink_formset = MediaLinkFormSet(instance=media_node,
data=data,
prefix="__links")
node_initial = node.properties.copy()
node_initial.update({ITEM_FIELD_NAME: node.id})
node_form = NodeForm(graph=graph,
itemtype=nodetype,
initial=node_initial,
data=data,
user=request.user.username)
# Outgoing relationships
prefixes = []
outgoing_formsets = SortedDict()
allowed_outgoing_relationships = nodetype.get_outgoing_relationships(
reflexive=True)
for relationship in allowed_outgoing_relationships:
initial = []
graph_relationships = node.relationships.filter(label=relationship.id)
for graph_relationship in graph_relationships:
# Only show outgoing relationships even if it is reflexive
if graph_relationship.target.id != node.id:
properties = graph_relationship.properties
properties.update({
relationship.id: graph_relationship.target.id,
ITEM_FIELD_NAME: graph_relationship.id,
})
initial.append(properties)
arity = relationship.arity_target
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "o_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"→ %s (%s)" % (relationship.name, relationship.target.name)
})
outgoing_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
related_node=node,
direction=TARGET,
prefix=formset_prefix,
initial=initial,
data=data,
user=request.user.username)
outgoing_formsets[formset_prefix] = outgoing_formset
# Incoming relationships
incoming_formsets = SortedDict()
allowed_incoming_relationships = nodetype.get_incoming_relationships(
reflexive=True)
for relationship in allowed_incoming_relationships:
initial = []
graph_relationships = node.relationships.filter(label=relationship.id)
for graph_relationship in graph_relationships:
# Only show incoming relationships even if it is reflexive
if graph_relationship.source.id != node.id:
properties = graph_relationship.properties
properties.update({
relationship.id: graph_relationship.source.id,
ITEM_FIELD_NAME: graph_relationship.id,
})
initial.append(properties)
arity = relationship.arity_source
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "i_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"← %s (%s)" % (relationship.name, relationship.source.name)
})
incoming_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
related_node=node,
direction=SOURCE,
prefix=formset_prefix,
initial=initial,
data=data,
user=request.user.username)
incoming_formsets[formset_prefix] = incoming_formset
# Save forms and formsets
if (data and node_form.is_valid() and mediafile_formset.is_valid()
and medialink_formset.is_valid()
and all([rf.is_valid() for rf in outgoing_formsets.values()])
and all([rf.is_valid() for rf in incoming_formsets.values()])):
with transaction.atomic():
as_new = 'as-new' in request.POST
if as_modal and not as_new:
# This is only needed for delete these relationships from the
# Sigma's internal graph, only when the node is saved not as
# new and when we are in modal mode.
old_relationship_ids = []
for rel in node.relationships.all():
source_id = rel.source.id
target_id = rel.target.id
if (source_id == node.id or target_id == node.id):
old_relationship_ids.append(str(rel.id))
node = node_form.save(as_new=as_new)
for outgoing_formset in outgoing_formsets.values():
for outgoing_form in outgoing_formset.forms:
if not (outgoing_form.delete and as_new):
# The if statement saves execution time
outgoing_form.save(related_node=node, as_new=as_new)
for incoming_formset in incoming_formsets.values():
for incoming_form in incoming_formset.forms:
if not (incoming_form.delete and as_new):
# The if statement saves execution time
incoming_form.save(related_node=node, as_new=as_new)
if as_new:
mediafile_formset.forms = [
modify_media_form(form) for form in mediafile_formset.forms
if can_media_save_as_new(form)
]
medialink_formset.forms = [
modify_media_form(form) for form in medialink_formset.forms
if can_media_save_as_new(form)
]
mediafiles = mediafile_formset.save(commit=False)
medialinks = medialink_formset.save(commit=False)
# Manage files and links
if ((as_new or not media_node.pk) and (mediafiles or medialinks)):
media_node = MediaNode.objects.create(node_id=node.id,
data=graph.data)
for mediafile in mediafiles:
mediafile.media_node = media_node
if as_new and mediafile.pk:
mediafile.pk = None
clone_file(mediafile)
mediafile.save()
for medialink in medialinks:
medialink.media_node = media_node
if as_new and medialink.pk:
medialink.pk = None
medialink.save()
if (media_node.pk and not media_node.files.exists()
and not media_node.links.exists()):
media_node.delete()
# If we are here it means that the form was valid and we don't need
# to return a form again.
if as_modal:
if not as_new:
action = 'edit'
else:
action = 'new'
relationships = []
for rel in node.relationships.all():
reltype = rel.get_type()
source_id = rel.source.id
target_id = rel.target.id
if (source_id == node.id or target_id == node.id):
rel_json = {
'id': str(rel.id),
'source': str(source_id),
'target': str(target_id),
'reltypeId': reltype.id,
'reltype': rel.label_display,
'fullReltype': reltype.__unicode__(),
'color': reltype.get_color(),
'properties': rel.properties
}
relationships.append(rel_json)
# We need to serialize the date and time types manually
# because ujson doesn't do this.
node = serialize_datetime(node)
response = {
'type': 'data',
'action': action,
'nodeId': str(node.id),
'nodeLabel': node.display,
'node': node.to_json(),
'relationships': relationships
}
if not as_new:
response['oldRelationshipIds'] = old_relationship_ids
return HttpResponse(json.dumps(response),
status=200,
content_type='application/json')
else:
redirect_url = reverse("nodes_list_full",
args=[graph.slug, nodetype.id])
return redirect(redirect_url)
# If we are here, we need to return the HTML form, empty or with errors.
if as_modal:
base_template = 'empty.html'
render = render_to_string
else:
base_template = 'base.html'
render = render_to_response
# This is a way to get the media needed by the form without repeat files
forms_media = {'js': set(), 'css': set()}
if not as_modal:
for form in [node_form] + outgoing_formsets.values() + \
incoming_formsets.values():
forms_media['js'].update(set(form.media.render_js()))
forms_media['css'].update(
set([css for css in form.media.render_css()]))
save_url = reverse("nodes_edit", args=[graph_slug, node_id])
delete_url = reverse("nodes_delete", args=[graph_slug, node_id])
broader_context = {
"graph": graph,
"nodetype": nodetype,
"node_form": node_form,
"node": node,
"prefixes": prefixes,
"outgoing_formsets": outgoing_formsets,
"incoming_formsets": incoming_formsets,
"mediafile_formset": mediafile_formset,
"medialink_formset": medialink_formset,
"forms_media": forms_media,
"action": _("Edit"),
"delete": True,
"as_new": True,
"base_template": base_template,
"as_modal": as_modal,
"save_url": save_url,
"delete_url": delete_url
}
response = render('nodes_editcreate.html',
broader_context,
context_instance=RequestContext(request))
if as_modal:
response = {'type': 'html', 'action': 'edit', 'html': response}
return HttpResponse(json.dumps(response),
status=200,
content_type='application/json')
else:
return response
def nodes_create(request, graph_slug, node_type_id):
graph = get_object_or_404(Graph, slug=graph_slug)
nodetype = get_object_or_404(NodeType, id=node_type_id)
# Variable to control if we want to stay in the saving page
add_another = "add-another"
if not nodetype.schema.graph == graph:
raise Http404(_("Mismatch in requested graph and node type's graph."))
if request.POST:
data = request.POST.copy()
as_modal = bool(data.get("asModal", False))
mediafile_formset = MediaFileFormSet(data=data,
files=request.FILES,
prefix="__files")
medialink_formset = MediaLinkFormSet(data=data,
files=request.FILES,
prefix="__links")
else:
data = None
as_modal = bool(request.GET.copy().get("asModal", False))
mediafile_formset = MediaFileFormSet(prefix="__files")
medialink_formset = MediaLinkFormSet(prefix="__links")
node_form = NodeForm(graph=graph,
itemtype=nodetype,
data=data,
user=request.user.username)
outgoing_formsets = SortedDict()
prefixes = []
for relationship in nodetype.outgoing_relationships.all():
arity = relationship.arity_target
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "o_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"→ %s (%s)" % (relationship.name, relationship.target.name)
})
outgoing_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
direction=TARGET,
prefix=formset_prefix,
data=data,
user=request.user.username)
outgoing_formsets[formset_prefix] = outgoing_formset
incoming_formsets = SortedDict()
for relationship in nodetype.incoming_relationships.all():
arity = relationship.arity_source
if arity > 0:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
max_num=arity,
extra=1)
else:
RelationshipFormSet = formset_factory(RelationshipForm,
formset=TypeBaseFormSet,
can_delete=True,
extra=1)
relationship_slug = "i_%s%s" % (relationship.name, relationship.id)
formset_prefix = slugify(relationship_slug).replace("-", "_")
prefixes.append({
"key":
formset_prefix,
"value":
u"← %s (%s)" % (relationship.name, relationship.source.name)
})
incoming_formset = RelationshipFormSet(graph=graph,
itemtype=relationship,
instance=nodetype,
direction=SOURCE,
prefix=formset_prefix,
data=data,
user=request.user.username)
incoming_formsets[formset_prefix] = incoming_formset
if (data and node_form.is_valid() and mediafile_formset.is_valid()
and medialink_formset.is_valid()
and all([rf.is_valid() for rf in outgoing_formsets.values()])
and all([rf.is_valid() for rf in incoming_formsets.values()])):
with transaction.atomic():
node = node_form.save()
for outgoing_formset in outgoing_formsets.values():
for outgoing_form in outgoing_formset.forms:
outgoing_form.save(related_node=node)
for incoming_formset in incoming_formsets.values():
for incoming_form in incoming_formset.forms:
incoming_form.save(related_node=node)
# Manage files and links
mediafiles = mediafile_formset.save(commit=False)
medialinks = medialink_formset.save(commit=False)
if mediafiles or medialinks:
media_node = MediaNode.objects.create(node_id=node.id,
data=graph.data)
for mediafile in mediafiles:
mediafile.media_node = media_node
mediafile.save()
for medialink in medialinks:
medialink.media_node = media_node
medialink.save()
# If we are here it means that the form was valid and we don't need
# to return a form again.
if as_modal:
relationships = []
for rel in node.relationships.all():
reltype = rel.get_type()
source_id = rel.source.id
target_id = rel.target.id
if (source_id == node.id or target_id == node.id):
rel_json = {
'id': str(rel.id),
'source': str(source_id),
'target': str(target_id),
'reltypeId': reltype.id,
'reltype': rel.label_display,
'fullReltype': reltype.__unicode__(),
'color': reltype.get_color(),
'properties': rel.properties
}
relationships.append(rel_json)
# We need to serialize the date and time types manually
# because ujson doesn't do this.
node = serialize_datetime(node)
response = {
'type': 'data',
'action': 'create',
'nodeId': str(node.id),
'nodeLabel': node.display,
'node': node.to_json(),
'relationships': relationships
}
return HttpResponse(json.dumps(response),
status=200,
content_type='application/json')
elif add_another in request.POST:
redirect_url = reverse("nodes_create",
args=[graph.slug, node_type_id])
return redirect(redirect_url)
else:
redirect_url = reverse("nodes_list_full",
args=[graph.slug, node_type_id])
return redirect(redirect_url)
# If we are here, we need to return the HTML form, empty or with errors.
if as_modal:
base_template = 'empty.html'
render = render_to_string
else:
base_template = 'base.html'
render = render_to_response
# This is a way to get the media needed by the form without repeat files
forms_media = {'js': set(), 'css': set()}
if not as_modal:
for form in [node_form] + outgoing_formsets.values() + \
incoming_formsets.values():
forms_media['js'].update(set(form.media.render_js()))
forms_media['css'].update(
set([css for css in form.media.render_css()]))
save_url = reverse("nodes_create", args=[graph_slug, nodetype.id])
delete_url = ''
broader_context = {
"graph": graph,
"nodetype": nodetype,
"node_form": node_form,
"prefixes": prefixes,
"outgoing_formsets": outgoing_formsets,
"incoming_formsets": incoming_formsets,
"mediafile_formset": mediafile_formset,
"medialink_formset": medialink_formset,
"forms_media": forms_media,
"action": u"%s %s" % (_("New"), nodetype.name),
"base_template": base_template,
"as_modal": as_modal,
"save_url": save_url,
"delete_url": delete_url
}
response = render('nodes_editcreate.html',
broader_context,
context_instance=RequestContext(request))
if as_modal:
response = {'type': 'html', 'action': 'create', 'html': response}
return HttpResponse(json.dumps(response),
status=200,
content_type='application/json')
else:
return response