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common/mongo/mongo.go
2026-03-12 08:51:13 +08:00

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package mongo
import (
"context"
"errors"
"fmt"
"strings"
"time"
"gitee.com/red-future---jilin-g/common/consts"
"gitee.com/red-future---jilin-g/common/do"
"gitee.com/red-future---jilin-g/common/redis"
"gitee.com/red-future---jilin-g/common/utils"
"github.com/gogf/gf/v2/errors/gerror"
"github.com/gogf/gf/v2/frame/g"
"github.com/gogf/gf/v2/os/glog"
"github.com/gogf/gf/v2/os/gtime"
"github.com/gogf/gf/v2/text/gstr"
"github.com/gogf/gf/v2/util/gconv"
"go.mongodb.org/mongo-driver/v2/bson"
"go.mongodb.org/mongo-driver/v2/mongo"
"go.mongodb.org/mongo-driver/v2/mongo/options"
)
var db *mongo.Database
// GetDB 获取 MongoDB 数据库实例
func GetDB() *mongo.Database {
return db
}
func init() {
// 按需初始化:没有配置 mongo.address 则跳过
mongoAddr := g.Cfg().MustGet(context.Background(), "mongo.address").String()
if mongoAddr == "" {
return
}
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
opt := options.Client().ApplyURI(mongoAddr)
client, err := mongo.Connect(opt)
if err != nil {
glog.Error(ctx, "mongodb连接失败", err)
return
}
// 从连接串中解析数据库名
dbName := gstr.SubStr(mongoAddr, strings.LastIndex(mongoAddr, "/")+1, len(mongoAddr))
// 如果连接串带有参数(如 ?retryWrites=true需要去掉参数部分
if strings.Contains(dbName, "?") {
dbName = gstr.SubStr(dbName, 0, strings.Index(dbName, "?"))
}
db = client.Database(dbName)
glog.Info(ctx, "✅ MongoDB 初始化成功")
}
func listOptionsToMap(ctx context.Context, opts ...options.Lister[options.FindOptions]) (m map[string]interface{}) {
// 输出opts参数中的值
m = make(map[string]interface{})
for _, opt := range opts {
var findOpts options.FindOptions
optFuncs := opt.List()
for _, fn := range optFuncs {
fn(&findOpts)
}
if findOpts.Limit != nil {
m["limit"] = *findOpts.Limit
}
if findOpts.Skip != nil {
m["skip"] = *findOpts.Skip
}
if findOpts.Sort != nil {
m["sort"] = findOpts.Sort
}
if findOpts.Projection != nil {
m["projection"] = findOpts.Projection
}
}
m = utils.OrderMap(m)
return
}
func oneOptionsToMap(ctx context.Context, opts ...options.Lister[options.FindOneOptions]) (m map[string]interface{}) {
// 输出opts参数中的值
m = make(map[string]interface{})
for _, opt := range opts {
var findOpts options.FindOneOptions
optFuncs := opt.List()
for _, fn := range optFuncs {
fn(&findOpts)
}
if findOpts.Skip != nil {
m["skip"] = *findOpts.Skip
}
if findOpts.Sort != nil {
m["sort"] = findOpts.Sort
}
if findOpts.Projection != nil {
m["projection"] = findOpts.Projection
}
}
m = utils.OrderMap(m)
return
}
// GetTenantInfo 获取租户信息
// 优先从 token 获取,失败则从请求参数 customerServiceId 查询 customer_service_account 表
func GetTenantInfo(ctx context.Context) (user do.User, err error) {
// 1. 优先从 token 获取
user, err = utils.GetUserInfo(ctx)
if err == nil {
return
}
// 2. token 获取失败,尝试从请求参数获取 customerServiceId
req := g.RequestFromCtx(ctx)
if req == nil {
return user, gerror.New("无法获取租户信息:无 token 且无 request")
}
customerServiceId := req.Get("customerServiceId").String()
if customerServiceId == "" {
customerServiceId = req.Get("customer_service_id").String()
}
if customerServiceId == "" {
return user, gerror.New("无法获取租户信息:无 token 且无 customerServiceId 参数")
}
// 3. 直接查询 customer_service_account 表获取 tenantId
filter := bson.M{"customerServiceId": customerServiceId, "isDeleted": false}
var account struct {
TenantId interface{} `bson:"tenantId"`
}
if findErr := db.Collection("customer_service_account").FindOne(ctx, filter).Decode(&account); findErr != nil {
return user, gerror.Newf("通过 customerServiceId 查询租户失败: %v", findErr)
}
user.TenantId = account.TenantId
user.UserName = customerServiceId
return
}
// Find 查询多条记录
func Find(ctx context.Context, filter bson.M, result interface{}, collection string, opts ...options.Lister[options.FindOptions]) (err error) {
if err = utils.ValidStructPtr(result); err != nil {
return
}
user, err := GetTenantInfo(ctx)
if err != nil {
return
}
filter["isDeleted"] = false
filterMap := utils.OrderMap(filter)
optsMap := listOptionsToMap(ctx, opts...)
redisKey := fmt.Sprintf(consts.List, user.TenantId, collection, gconv.String(filterMap), gconv.String(optsMap))
resultStr, err := redis.RedisClient.Get(ctx, redisKey)
if err != nil {
return
}
if !g.IsEmpty(resultStr) {
err = gconv.Scan(resultStr, result)
if err != nil {
return err
}
return
}
filter["tenantId"] = user.TenantId
cur, err := db.Collection(collection).Find(ctx, filter, opts...)
if err != nil {
return
}
err = cur.All(ctx, result)
err = redis.RedisClient.SetEX(ctx, redisKey, result, int64(time.Hour))
if err != nil {
return err
}
return
}
// FindOne 查询1条记录
func FindOne(ctx context.Context, filter bson.M, result interface{}, collection string, opts ...options.Lister[options.FindOneOptions]) (err error) {
if len(filter) == 0 {
err = gerror.New("缺少查询条件")
return
}
if err = utils.ValidStructPtr(result); err != nil {
return
}
user, err := GetTenantInfo(ctx)
if err != nil {
return
}
filter["isDeleted"] = false
filterMap := utils.OrderMap(filter)
redisKey := fmt.Sprintf(consts.One, user.TenantId, collection, gconv.String(filterMap))
resultStr, err := redis.RedisClient.Get(ctx, redisKey)
if err != nil {
return
}
if !g.IsEmpty(resultStr) {
err = gconv.Scan(resultStr, result)
if err != nil {
return err
}
return
}
filter["tenantId"] = user.TenantId
cur := db.Collection(collection).FindOne(ctx, filter, opts...)
err = cur.Decode(result)
if errors.Is(err, mongo.ErrNoDocuments) {
err = nil
}
err = redis.RedisClient.SetEX(ctx, redisKey, result, int64(time.Hour))
if err != nil {
return err
}
return
}
func cleanRedis(ctx context.Context, filter bson.M, tenantId interface{}, collection string) (err error) {
listKeys := fmt.Sprintf(consts.CleanList, tenantId, collection)
keys, err := redis.RedisClient.Keys(ctx, listKeys)
if err != nil {
return
}
for _, key := range keys {
_, err = redis.RedisClient.Del(ctx, key)
if err != nil {
return
}
}
countKeys := fmt.Sprintf(consts.CleanCount, tenantId, collection)
keys, err = redis.RedisClient.Keys(ctx, countKeys)
if err != nil {
return
}
for _, key := range keys {
_, err = redis.RedisClient.Del(ctx, key)
if err != nil {
return
}
}
filter["isDeleted"] = false
delete(filter, "tenantId")
filterMap := utils.OrderMap(filter)
oneKey := fmt.Sprintf(consts.One, tenantId, collection, gconv.String(filterMap))
_, err = redis.RedisClient.Del(ctx, oneKey)
if err != nil {
return
}
return
}
// Delete 删除记录
func Delete(ctx context.Context, filter bson.M, collection string, opts ...options.Lister[options.DeleteManyOptions]) (count int64, err error) {
if len(filter) == 0 {
err = gerror.New("缺少查询条件")
return
}
user, err := GetTenantInfo(ctx)
if err != nil {
return
}
filter["tenantId"] = user.TenantId
r, err := db.Collection(collection).DeleteMany(ctx, filter, opts...)
if err != nil {
return
}
count = r.DeletedCount
err = cleanRedis(ctx, filter, user.TenantId, collection)
return
}
// Update 修改记录
func Update(ctx context.Context, filter bson.M, update bson.M, collection string, opts ...options.Lister[options.UpdateManyOptions]) (result *mongo.UpdateResult, err error) {
if len(filter) == 0 {
err = gerror.New("缺少查询条件")
return
}
filter["isDeleted"] = false
user, err := GetTenantInfo(ctx)
if err != nil {
return
}
filter["tenantId"] = user.TenantId
setDoc := update["$set"].(bson.M)
setDoc["updater"] = user.UserName
setDoc["updatedAt"] = gtime.Now().Time
update = bson.M{"$set": setDoc}
result, err = db.Collection(collection).UpdateMany(ctx, filter, update, opts...)
if err != nil {
return
}
err = cleanRedis(ctx, filter, user.TenantId, collection)
return
}
// Insert 插入多条记录
func Insert(ctx context.Context, documents []interface{}, collection string, opts ...options.Lister[options.InsertManyOptions]) (ids []interface{}, err error) {
user, err := GetTenantInfo(ctx)
if err != nil {
return
}
docs := make([]interface{}, 0, len(documents))
for _, document := range documents {
doc := gconv.Map(document)
delete(doc, "id")
doc["creator"] = user.UserName
doc["createdAt"] = gtime.Now().Time
doc["updater"] = user.UserName
doc["updatedAt"] = gtime.Now().Time
doc["tenantId"] = user.TenantId
doc["isDeleted"] = false
docs = append(docs, doc)
}
r, err := db.Collection(collection).InsertMany(ctx, docs, opts...)
if err != nil {
return
}
ids = r.InsertedIDs
err = cleanRedis(ctx, bson.M{}, user.TenantId, collection)
return
}
// Count 查询总数
func Count(ctx context.Context, filter bson.M, collection string) (count int64, err error) {
user, err := GetTenantInfo(ctx)
if err != nil {
return
}
filter["isDeleted"] = false
filterMap := utils.OrderMap(filter)
redisKey := fmt.Sprintf(consts.Count, user.TenantId, collection, gconv.String(filterMap))
resultStr, err := redis.RedisClient.Get(ctx, redisKey)
if err != nil {
return
}
if !g.IsEmpty(resultStr) {
count = gconv.Int64(resultStr)
return
}
// 调用驱动的 CountDocuments在数据库端执行的
count, err = db.Collection(collection).CountDocuments(ctx, filter)
err = redis.RedisClient.SetEX(ctx, redisKey, count, int64(time.Hour))
if err != nil {
return
}
return
}