小编Abh*_*rma的帖子

馆藏结构

Order = new Schema
    index:          { type: Number, unique: true }
    number:         Date
    status:         { type: String, enum: ['success', 'failure'] }
    created_at:     { type: Date, default: Date.now }
    updated_at:     { type: Date, default: Date.now }

我需要有关查询的帮助，该查询返回一组对象，这些对象的数据为按日期分组的成功计数和失败计数。前任-

orders = {
              28-10-2016:{
               success_count: 10, 
               failure_count: 10
              },
              29-10-2016: {
               success_count: 10, 
               failure_count: 10
              }
          }