如何在orientDB中使用javascript函数添加多个边

Question

我使用javascript函数添加了多个节点，并希望在尝试编写for循环时添加连接它们的边，它会引发以下异常：

com.orientechnologies.orient.core.exception.OSerializationException：无法在嵌入式会话中序列化无效链接：＃57：-2

如果我编写相同的查询而没有for循环，它将被执行。

var g = orient.getGraph();
for (var i = 0 ; i < 5 ; i ++ ){
var title ="post_0";
var company_name = "Company_0";
var c = "create edge HasInterest from (select from post where Title = '" + 
title + "') to (select from Interest where      Name = 'Recruitment')"; 
    g.command("sql",c,[]);
}

Answer 1

由于使用了这样的循环，因此缺少了commit（）语句：

var g = orient.getGraph();
for (var i = 0 ; i < 5 ; i ++ )
{
    var title = "post_" + i;
    var company_name = "Company_" + i;
    var c = "create edge HasInterest from (select from post where Title = '" +
             title + "') to (select from Interest where Name = 'Recruitment')";
    g.command("sql",c,[]);
    g.commit();
}