MongoDb组按月求和无法执行聚合
我有一个聚合脚本,它在最后一个阶段生成以下输出。我现在想按帐户类别进行分组和求和,但它告诉我,我正试图以某种方式将BSON类型的EOO转换为Date-这在我的代码中任何地方都看不到MongoDb组按月求和无法执行聚合,mongodb,mongodb-query,aggregation-framework,Mongodb,Mongodb Query,Aggregation Framework,我有一个聚合脚本,它在最后一个阶段生成以下输出。我现在想按帐户类别进行分组和求和,但它告诉我,我正试图以某种方式将BSON类型的EOO转换为Date-这在我的代码中任何地方都看不到 { "_id" : { "party_uuid" : "phildominickcompany", "connection_uuid" : "5738fc661a21db15b5c45b49", "account_balances_date" : ISODate("2016-06-30T
{
"_id" : {
"party_uuid" : "phildominickcompany",
"connection_uuid" : "5738fc661a21db15b5c45b49",
"account_balances_date" : ISODate("2016-06-30T10:00:00.000+0000"),
"object_origin_category" : "Bookkeeping",
"object_origin" : "Sage One"
},
"account_identifier" : "5010",
"account_name" : "Cost of sales - materials",
"account_category" : "Sales Expense",
"account_type" : null,
"account_value_type" : "debit",
"account_value" : NumberInt(0)
}
{
"_id" : {
"party_uuid" : "phildominickcompany",
"connection_uuid" : "5738fc661a21db15b5c45b49",
"account_balances_date" : ISODate("2016-07-31T10:00:00.000+0000"),
"object_origin_category" : "Bookkeeping",
"object_origin" : "Sage One"
},
"account_identifier" : "4000",
"account_name" : "Sales Type A",
"account_category" : "Sales Revenue",
"account_type" : null,
"account_value_type" : "credit",
"account_value" : 57728.33
}
{
"_id" : {
"party_uuid" : "phildominickcompany",
"connection_uuid" : "5738fc661a21db15b5c45b49",
"account_balances_date" : ISODate("2016-07-31T10:00:00.000+0000"),
"object_origin_category" : "Bookkeeping",
"object_origin" : "Sage One"
},
"account_identifier" : "5000",
"account_name" : "Cost of sales - goods",
"account_category" : "Sales Expense",
"account_type" : null,
"account_value_type" : "debit",
"account_value" : NumberInt(10000)
}
{
"_id" : {
"party_uuid" : "phildominickcompany",
"connection_uuid" : "5738fc661a21db15b5c45b49",
"account_balances_date" : ISODate("2016-07-31T10:00:00.000+0000"),
"object_origin_category" : "Bookkeeping",
"object_origin" : "Sage One"
},
"account_identifier" : "5010",
"account_name" : "Cost of sales - materials",
"account_category" : "Sales Expense",
"account_type" : null,
"account_value_type" : "debit",
"account_value" : NumberInt(20000)
}
{
"_id" : {
"party_uuid" : "phildominickcompany",
"connection_uuid" : "5738fc661a21db15b5c45b49",
"account_balances_date" : ISODate("2016-07-31T10:00:00.000+0000"),
"object_origin_category" : "Bookkeeping",
"object_origin" : "Sage One"
},
"account_identifier" : "6200",
"account_name" : "Marketing",
"account_category" : "Other Expense",
"account_type" : null,
"account_value_type" : "debit",
"account_value" : NumberInt(1500)
}
我现在尝试申请的阶段如下。它应该按年度和月份对账户价值进行合计。它产生了一个错误,告诉我我试图从EOO到约会
$group : {
_id: {"party_uuid" : "$party_uuid",
"account_category" : "$account_category",
"account_balances_year" : {$year : "$account_balances_date"},
"account_balances_month" : {$month : "$account_balances_date"},
"account_category" : "$account_category",
"account_type" : "$account_type",
"object_origin_category" : "$object_origin_category",
"object_origin" : "$object_origin"},
"month_value" : { $sum: "$account_value"}
}
谢谢,Matt首先,您必须对$account\u balances\u date字段进行投影,以获得月份和年份,然后按年度和月份分组。如下所示:
$project: {
year: { $year: "$account_balances_date" },
month: { $month: "$account_balances_date" },
},
$group : {
"_id": {
"account_balances_year" : $year,
"account_balances_month" : $month,
},
"month_value" : { $sum: "$account_value"}
}
Alos,如果您使用以前的group By,则必须稍微更改此查询。要按年份和月份对
帐户\u值进行求和,请添加以下管道
{
"$group": {
"_id": {
"year": { "$year": "$_id.account_balances_date" },
"month": { "$month": "$_id.account_balances_date" }
},
"total_account_value": { "$sum": "$account_value" }
}
}
这将从样本中输出:
/* 1 */
{
"_id" : {
"year" : 2016,
"month" : 7
},
"total_account_value" : 89228.33
}
/* 2 */
{
"_id" : {
"year" : 2016,
"month" : 6
},
"total_account_value" : 0
}
你好,马特,你能发布你的JSON吗。