MongoDB 不同的查询和 $in with Go

Question

我在使用 MongoDB 中的不同查询时遇到问题。

我可以写成Mongoshell，可以用，但是我不知道怎么用Go代码实现。

这是我的 Mongo shell 代码

db.getCollection('company_role_function').distinct("rolecode", {rolecode : {
   $in: ['DHBK_ROLE_01','DHBK_ROLE_03' ] },productid:'IOT_Platform'
})

这是我的 Go 代码

1.profile.go

    type CompanyRoleFunction struct {
        Rolecode     string `json:"rolecode"`
        Productid    string `json:"productid"`
        Functioncode string `json:"functioncode"`
        Comid        string `json:"comid"`
     }

repository.go

package repository
import "bitbucket.org/cloud-platform/vnpt-sso-usermgnt/model"
type IProfileRepository interface {
   FindRoleByUserProduct(string) (*model.CompanyRoleFunction, error)
}

mongo_driver.go

package repository
import (
    "bitbucket.org/cloud-platform/vnpt-sso-usermgnt/model"
    "go.mongodb.org/mongo-driver/bson"
    "gopkg.in/mgo.v2"
)
type ProfileRepositoryMongo struct {
  db         *mgo.Database
  collection string
 }

 func NewProfileRepositoryMongo(db *mgo.Database, collection string) *ProfileRepositoryMongo {
    return &ProfileRepositoryMongo{
    db:         db,
    collection: collection,
   }
}
//I HAVE TROUBLE HERE
 func (r *ProfileRepositoryMongo) FindRoleByUserProduct(rolecode arr[]string)  (*model.CompanyRoleFunction, error) {
  var companyRoleFunction model.CompanyRoleFunction
   //I HAVE TROUBLE HERE
  err := r.db.C(r.collection).Find(bson.M{"username": username}).One(&companyRoleFunction)
   //I HAVE TROUBLE HERE
  if err != nil {
      return nil, err
   }
  return &companyRoleFunction, nil
 }

Answer 1

在 mgo

中尝试使用以下代码来区分

package main

import (
"context"
"fmt"
"time"

"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
"gopkg.in/mgo.v2"
)

type Result struct {
Rolecode string `json:"rolecode"`
Productid string `json:"productid"`
Functioncode string `json:"functioncode"`
Comid string `json:"comid"`
}
type Results []Result

func main() {
//delete1("GV_BMVT")
//update("GV_BMVT")
check()
}

func check() {
session, err := mgo.Dial("mongodb://casuser:Mellon@222.255.102.145:27017/users")
if err != nil {
panic(err)
}
c := session.DB("users").C("company_role_function")
results := []string{}

roleArray := []string{"DHBK_ROLE_01,", "DHBK_ROLE_03"}
err = c.Find(bson.M{"rolecode": bson.M{"$in": roleArray}, "productid": "IOT_Platform"}).Distinct("rolecode", &results)
if err != nil {
panic(err)
}
fmt.Println(results)


}

MongoDB 不同的查询和 $in with Go

MongoDB distinct query and $in with Go

go

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mongo-go