def get_default(self, obj):
"""
Return default value
:param obj: Object being processed
:return: Objects default value
"""
return attrib_str_to_value(obj.type_fk.raw_type, obj.default_str)
def get_graph_json(obj):
"""
returns "graph" component of a graph JSON representation. This
comprises of a list containing two dictionaries as per the following
sample:
"graph": [ {
"attrs": [ { .. 1 or more graph attribute definitions .. } ]
},
{
"data": [ { .. 0 or more graph attributes .. } ]
}
:param obj: Parent Graph object.
:return: JSON representation of the "graph" component of the object
made up of attributes and data that have been linked to this
Graph object via FKs.
"""
attrs_list = []
for attr in GraphAttribDefGraph.objects.filter(graph_fk=obj.id):
attr_data = GraphAttribJsonSerializer(attr).data
# Remove "default" fields that do not have a value, as per
# example legacy JSON
if attr_data['default'] is None:
attr_data.pop('default')
attrs_list.append(attr_data)
data_dict = {}
for attr in GraphAttrib.objects.filter(graph_fk=obj.id):
data_dict[attr.attrib_fk.label] = \
attrib_str_to_value(attr.attrib_fk.type_fk.raw_type, attr.value_str)
return [{"attrs": attrs_list}, {"data": [data_dict]}]
def update_vertex_attrib(vertex, attrib_label, attrib_type,
attrib_value_str):
"""
Common code to handle the propagation of to a VertexAttrib object (Create or Delete) up into the parent Vertex
objects json field.
:param vertex: Parent Vertex object to update
:param attrib_label: Attribute label being updated
:param attrib_type: The type of the attribute being updated
:param attrib_value_str: String value of the attribute being updated
"""
vertex_attribute_json = json.loads(str(vertex.attribute_json))
vertex_attribute_json[attrib_label] = attrib_str_to_value(
attrib_type, attrib_value_str)
vertex.attribute_json = json.dumps(vertex_attribute_json)
signals.post_save.disconnect(vertex_saved, sender=Vertex)
vertex.save()
signals.post_save.connect(vertex_saved, sender=Vertex)
def update_graph_attrib(graph, attrib_label, attrib_type,
attrib_value_str):
"""
Common code to handle the propagation of to a GraphAttrib object
(Create or Delete) up into the parent Graph objects json field.
:param graph: Parent Graph object to update
:param attrib_label: Attribute label being updated
:param attrib_type: The type of the attribute being updated
:param attrib_value_str: String value of the attribute being updated
"""
graph_attribute_json = json.loads(str(graph.attribute_json))
graph_attribute_json[attrib_label] = attrib_str_to_value(
attrib_type, attrib_value_str)
graph.attribute_json = json.dumps(graph_attribute_json)
signals.post_save.disconnect(graph_saved, sender=Graph)
graph.save()
signals.post_save.connect(graph_saved, sender=Graph)
def update_transaction_attrib(transaction, attrib_label, attrib_type,
attrib_value_str):
"""
Common code to handle the propagation of to a TransactionAttrib object
(Create or Delete) up into the parent Transaction objects json field.
:param transaction: Parent Transaction object to update
:param attrib_label: Attribute label being updated
:param attrib_type: The type of the attribute being updated
:param attrib_value_str: String value of the attribute being updated
"""
transaction_attribute_json = json.loads(str(
transaction.attribute_json))
transaction_attribute_json[attrib_label] = attrib_str_to_value(
attrib_type, attrib_value_str)
transaction.attribute_json = json.dumps(transaction_attribute_json)
signals.post_save.disconnect(transaction_saved, sender=Transaction)
transaction.save()
signals.post_save.connect(transaction_saved, sender=Transaction)