Esempio n. 1
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    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)
Esempio n. 2
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    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)
Esempio n. 3
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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 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(itemtype=nodetype, data=data)
    outgoing_formsets = {}
    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 = "%s%s" % (relationship.name, relationship.id)
        formset_prefix = slugify(relationship_slug).replace("-", "_")
        outgoing_formset = RelationshipFormSet(itemtype=relationship,
                                                   instance=nodetype,
                                                   prefix=formset_prefix,
                                                   data=data)
        outgoing_formsets[formset_prefix] = outgoing_formset
    incoming_formsets = {}
    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 = "%s%s" % (relationship.name, relationship.id)
        formset_prefix = slugify(relationship_slug).replace("-", "_")
        incoming_formset = RelationshipFormSet(itemtype=relationship,
                                                   instance=nodetype,
                                                   prefix=formset_prefix,
                                                   data=data)
        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()])):
        # 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)
        # Manage files and links
        mediafiles = mediafile_formset.save(commit=False)
        media_node = MediaNode.objects.create(node_id=node.id, data=graph.data)
        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, node_type_id])
        return redirect(redirect_url)
    return render_to_response('nodes_editcreate.html',
        {"graph": graph,
         "nodetype": nodetype,
         "node_form": node_form,
         "outgoing_formsets": outgoing_formsets,
         "incoming_formsets": incoming_formsets,
         "mediafile_formset": mediafile_formset,
         "medialink_formset": medialink_formset,
         "action": _("New")},
        context_instance=RequestContext(request))
Esempio n. 4
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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()
    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)
    outgoing_formsets = {}
    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 = "%s%s" % (relationship.name, relationship.id)
        formset_prefix = slugify(relationship_slug).replace("-", "_")
        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 = {}
    allowed_incoming_relationships = nodetype.incoming_relationships.all()
    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 = "%s%s" % (relationship.name, relationship.id)
        formset_prefix = slugify(relationship_slug).replace("-", "_")
        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,
         "outgoing_formsets": outgoing_formsets,
         "incoming_formsets": incoming_formsets,
         "mediafile_formset": mediafile_formset,
         "medialink_formset": medialink_formset,
         "action": _("Edit"),
         "delete": True},
        context_instance=RequestContext(request))
Esempio n. 5
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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))
Esempio n. 6
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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))
Esempio n. 7
0
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
Esempio n. 8
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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
Esempio n. 9
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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(itemtype=nodetype, data=data)
    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(itemtype=relationship,
                                               instance=nodetype,
                                               prefix=formset_prefix,
                                               data=data)
        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(itemtype=relationship,
                                               instance=nodetype,
                                               prefix=formset_prefix,
                                               data=data)
        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))
Esempio n. 10
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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))
Esempio n. 11
0
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
Esempio n. 12
0
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