Question

我尝试根据节点编号进行查询并返回属性列表。以下cypher查询在neo4j浏览器中有效，但当我尝试通过py2neo传递相同的密码查询时，我得到：

"Expected a property container or number here, but got:91"

其中＆＃34; 91＆＃34;是我查询的节点号。

摘自我的代码：

def neighbor_finder(a):
     try:                    
        graph_db = neo4j.GraphDatabaseService(url)                     

        query = neo4j.CypherQuery(graph_db,
         """CYPHER 2.0                         
            MATCH (n)-[r]-(m)            
            WHERE ID(n) = {t}
            WITH collect (Distinct m.size) as sizes, collect (Distinct m.weight) as weights, collect (Distinct m.color) as colors, collect (distinct n.label) as node_
            RETURN sizes, weights, colors, node_                                    
            """)                                                                                                                                     
        result = query.execute(t=a)

        for r in result:
            column = [str(item) for item in r.columns]
            value = [str(item) for item in r.values]                                             
            db_dict={k: v for k, v in zip(column, value)}
            for x, y in db_dict.items():
                print x, y

    except Exception as e:
        print e

Answer 1

您能否提供传递给此函数的a参数的类型和值的详细信息？没有它，我无法看到py2neo传递给查询参数的内容。

Answer 2

参数“a”未被读取，因为它需要声明为整数，cypher / py2neo当前正在将其作为字符串读取。

参数不在py2neo中读取

2 个答案: