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我有这样的格式上了Riak数据库数据:的MapReduce在了Riak千伏使用JavaScript
Bakshi - {u'friendlist': [u'Sita', u' Hari', u' Shyam', u' Howard', u' Bindu', u' Kishna', u' Karma', u' Dinesh'], u'is_active': True, u'user': u'Bakshi'}
这里fethcing数据通过的Map/Reduce
client = riak.RiakClient()
user_bucket = client.add('userfriendlist')
user_bucket.map("""
function(v){
var data = JSON.parse(v.values[0].data);
if(data.is_active == true){
tempUser = data.user;
tempFriendlist = data.friendlist;
for (var i=0; i<tempFriendlist.length; i++){
friendValue = tempFriendlist[i];
return [[tempUser,friendValue]];
}
}
}
""")
并打印返回值
for result in user_bucket.run():
print "%s - %s" % (result[0],result[1]);
它给像输出:
Bakshi - Sita
但预计OUTPT是:
Bakshi - Sita
Bakshi- Hari
Bakshi- Shyam
Bakshi- Howard
Bakshi- Bindu
Bakshi- Kishna
Bakshi- Karma
Bakshi- Dinesh
什么,我做错了,我不能这样做里面的地图迭代()?
我已经试过你的建议,但如何打印返回值映射 – bikas
我已经印刷,这里是错误的'mapped.push([tempUser,friendValue]);' – bikas