问题描述
def get_nlg(graph_query):
driver = Graph("neo4j://localhost:7687",auth=("neo4j","password"))
graph_response = graph.evaluate(graph_query)
对于上面的代码,我用下面的驱动程序代码替换了,但它不起作用,neo4j驱动程序中的功能等同于py2neo中的 evaluate()功能?
def get_nlg(graph_query):
driver = GraphDatabase.driver("neo4j://localhost:7687","password"))
with driver.session() as session:
graph_response = session.run(graph_query)
return graph_response
将第二个代码的 graph_response 的结果传递给下面的代码时,出现错误
TypeError:位于0x7f94cf7f31d0>的
class GetBiggestComponent(Action):
def name(self):
return "action_get_biggest_component"
def run(self,dispatcher,tracker,domain):
query = None
intent = tracker.latest_message['intent']
child_comp = tracker.get_slot('component_type_child')
parent_comp = tracker.get_slot('component_type_parent')
error = None
graph_response = GenerateQuery.get_biggest_component(child_comp,parent_comp)
graph_response['intent_name'] = intent['name']
dispatcher.utter_custom_message(graph_response)
return []
在行中传递错误时会出现
dispatcher.utter_custom_message(graph_response)
解决方法
没有直接的等效项。您将需要run
查询,然后从返回的第一条记录中选择第一个值。这就是evaluate
在幕后所做的一切。