mgo.go 7.7 KB

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  1. package util
  2. import (
  3. "context"
  4. "log"
  5. "time"
  6. "go.mongodb.org/mongo-driver/bson"
  7. "go.mongodb.org/mongo-driver/bson/primitive"
  8. "go.mongodb.org/mongo-driver/mongo"
  9. "go.mongodb.org/mongo-driver/mongo/options"
  10. )
  11. var Mgo *MongodbSim
  12. type MgoSess struct {
  13. Db string
  14. Coll string
  15. Query interface{}
  16. Sorts []string
  17. fields interface{}
  18. limit int64
  19. skip int64
  20. M *MongodbSim
  21. }
  22. type MgoIter struct {
  23. Cursor *mongo.Cursor
  24. }
  25. func (mt *MgoIter) Next(result interface{}) bool {
  26. if mt.Cursor != nil {
  27. if mt.Cursor.Next(nil) {
  28. err := mt.Cursor.Decode(result)
  29. if err != nil {
  30. log.Println("mgo cur err", err.Error())
  31. mt.Cursor.Close(nil)
  32. return false
  33. }
  34. return true
  35. } else {
  36. mt.Cursor.Close(nil)
  37. return false
  38. }
  39. } else {
  40. return false
  41. }
  42. }
  43. func (ms *MgoSess) DB(name string) *MgoSess {
  44. ms.Db = name
  45. return ms
  46. }
  47. func (ms *MgoSess) C(name string) *MgoSess {
  48. ms.Coll = name
  49. return ms
  50. }
  51. func (ms *MgoSess) Find(q interface{}) *MgoSess {
  52. ms.Query = q
  53. return ms
  54. }
  55. func (ms *MgoSess) Select(fields interface{}) *MgoSess {
  56. ms.fields = fields
  57. return ms
  58. }
  59. func (ms *MgoSess) Limit(limit int64) *MgoSess {
  60. ms.limit = limit
  61. return ms
  62. }
  63. func (ms *MgoSess) Skip(skip int64) *MgoSess {
  64. ms.skip = skip
  65. return ms
  66. }
  67. func (ms *MgoSess) Sort(sorts ...string) *MgoSess {
  68. ms.Sorts = sorts
  69. return ms
  70. }
  71. func (ms *MgoSess) Iter() *MgoIter {
  72. it := &MgoIter{}
  73. find := options.Find()
  74. if ms.skip > 0 {
  75. find.SetSkip(ms.skip)
  76. }
  77. if ms.limit > 0 {
  78. find.SetLimit(ms.limit)
  79. }
  80. find.SetBatchSize(100)
  81. if len(ms.Sorts) > 0 {
  82. sort := bson.M{}
  83. for _, k := range ms.Sorts {
  84. switch k[:1] {
  85. case "-":
  86. sort[k[1:]] = -1
  87. case "+":
  88. sort[k[1:]] = 1
  89. default:
  90. sort[k] = 1
  91. }
  92. }
  93. find.SetSort(sort)
  94. }
  95. if ms.fields != nil {
  96. find.SetProjection(ms.fields)
  97. }
  98. cur, err := ms.M.C.Database(ms.Db).Collection(ms.Coll).Find(ms.M.Ctx, ms.Query, find)
  99. if err != nil {
  100. log.Println("mgo find err", err.Error())
  101. } else {
  102. it.Cursor = cur
  103. }
  104. return it
  105. }
  106. type MongodbSim struct {
  107. MongodbAddr string
  108. Size int
  109. // MinSize int
  110. DbName string
  111. C *mongo.Client
  112. Ctx context.Context
  113. ShortCtx context.Context
  114. pool chan bool
  115. UserName string
  116. PassWord string
  117. }
  118. func (m *MongodbSim) GetMgoConn() *MgoSess {
  119. //m.Open()
  120. ms := &MgoSess{}
  121. ms.Db = m.DbName
  122. ms.M = m
  123. return ms
  124. }
  125. func (m *MongodbSim) DestoryMongoConn(ms *MgoSess) {
  126. //m.Close()
  127. ms.M = nil
  128. ms = nil
  129. }
  130. func (m *MongodbSim) InitPool() {
  131. opts := options.Client()
  132. opts.SetConnectTimeout(3 * time.Second)
  133. opts.ApplyURI("mongodb://" + m.MongodbAddr)
  134. opts.SetMaxPoolSize(uint64(m.Size))
  135. m.pool = make(chan bool, m.Size)
  136. opts.SetMaxConnIdleTime(2 * time.Hour)
  137. if m.UserName != "" && m.PassWord != "" {
  138. opts.SetAuth(options.Credential{Username: m.UserName, Password: m.PassWord})
  139. }
  140. m.Ctx, _ = context.WithTimeout(context.Background(), 99999*time.Hour)
  141. m.ShortCtx, _ = context.WithTimeout(context.Background(), 1*time.Minute)
  142. client, err := mongo.Connect(m.ShortCtx, opts)
  143. if err != nil {
  144. log.Println("mgo init error:", err.Error())
  145. } else {
  146. m.C = client
  147. log.Println("init success")
  148. }
  149. }
  150. func (m *MongodbSim) Open() {
  151. m.pool <- true
  152. }
  153. func (m *MongodbSim) Close() {
  154. <-m.pool
  155. }
  156. //批量插入
  157. func (m *MongodbSim) UpSertBulk(c string, doc ...[]map[string]interface{}) (map[int64]interface{}, bool) {
  158. m.Open()
  159. defer m.Close()
  160. coll := m.C.Database(m.DbName).Collection(c)
  161. var writes []mongo.WriteModel
  162. for _, d := range doc {
  163. write := mongo.NewUpdateOneModel()
  164. write.SetFilter(d[0])
  165. write.SetUpdate(d[1])
  166. write.SetUpsert(true)
  167. writes = append(writes, write)
  168. }
  169. r, e := coll.BulkWrite(m.Ctx, writes)
  170. if e != nil {
  171. log.Println("mgo upsert error:", e.Error())
  172. return nil, false
  173. }
  174. // else {
  175. // if r.UpsertedCount != int64(len(doc)) {
  176. // log.Println("mgo upsert uncomplete:uc/dc", r.UpsertedCount, len(doc))
  177. // }
  178. // return true
  179. // }
  180. return r.UpsertedIDs, true
  181. }
  182. //批量插入
  183. func (m *MongodbSim) SaveBulk(c string, doc ...map[string]interface{}) bool {
  184. m.Open()
  185. defer m.Close()
  186. coll := m.C.Database(m.DbName).Collection(c)
  187. var writes []mongo.WriteModel
  188. for _, d := range doc {
  189. write := mongo.NewInsertOneModel()
  190. write.SetDocument(d)
  191. writes = append(writes, write)
  192. }
  193. _, e := coll.BulkWrite(m.Ctx, writes)
  194. if e != nil {
  195. log.Println("mgo savebulk error:", e.Error())
  196. return false
  197. }
  198. return true
  199. }
  200. //保存
  201. func (m *MongodbSim) Save(c string, doc map[string]interface{}) interface{} {
  202. m.Open()
  203. defer m.Close()
  204. coll := m.C.Database(m.DbName).Collection(c)
  205. r, err := coll.InsertOne(m.Ctx, doc)
  206. if err != nil {
  207. return nil
  208. }
  209. return r.InsertedID
  210. }
  211. //更新by Id
  212. func (m *MongodbSim) UpdateById(c, id string, doc map[string]interface{}) bool {
  213. m.Open()
  214. defer m.Close()
  215. coll := m.C.Database(m.DbName).Collection(c)
  216. _, err := coll.UpdateOne(m.Ctx, map[string]interface{}{"_id": StringTOBsonId(id)}, doc)
  217. if err != nil {
  218. return false
  219. }
  220. return true
  221. }
  222. //更新Update
  223. func (m *MongodbSim) Update(c string, query map[string]interface{}, up map[string]interface{}) (map[int64]interface{}, bool) {
  224. m.Open()
  225. defer m.Close()
  226. coll := m.C.Database(m.DbName).Collection(c)
  227. var writes []mongo.WriteModel
  228. write := mongo.NewUpdateOneModel()
  229. write.SetFilter(query)
  230. write.SetUpdate(up)
  231. write.SetUpsert(true)
  232. writes = append(writes, write)
  233. r, err := coll.BulkWrite(m.Ctx, writes)
  234. if err != nil {
  235. return nil, false
  236. }
  237. return r.UpsertedIDs, true
  238. }
  239. //删除by id
  240. func (m *MongodbSim) DeleteById(c, id string) int64 {
  241. m.Open()
  242. defer m.Close()
  243. coll := m.C.Database(m.DbName).Collection(c)
  244. r, err := coll.DeleteOne(m.Ctx, map[string]interface{}{"_id": StringTOBsonId(id)})
  245. if err != nil {
  246. return 0
  247. }
  248. return r.DeletedCount
  249. }
  250. //通过条件删除
  251. func (m *MongodbSim) Delete(c string, query map[string]interface{}) int64 {
  252. m.Open()
  253. defer m.Close()
  254. coll := m.C.Database(m.DbName).Collection(c)
  255. r, err := coll.DeleteMany(m.Ctx, query)
  256. if err != nil {
  257. return 0
  258. }
  259. return r.DeletedCount
  260. }
  261. //findbyid
  262. func (m *MongodbSim) FindById(c, id string, fields interface{}) map[string]interface{} {
  263. m.Open()
  264. defer m.Close()
  265. coll := m.C.Database(m.DbName).Collection(c)
  266. op := options.FindOne()
  267. r := coll.FindOne(m.Ctx, map[string]interface{}{"_id": StringTOBsonId(id)}, op.SetProjection(fields))
  268. v := map[string]interface{}{}
  269. r.Decode(&v)
  270. return v
  271. }
  272. //findone
  273. func (m *MongodbSim) FindOne(c string, query map[string]interface{}) map[string]interface{} {
  274. m.Open()
  275. defer m.Close()
  276. coll := m.C.Database(m.DbName).Collection(c)
  277. //op := options.FindOne()
  278. //r := coll.FindOne(m.Ctx, query, op.SetProjection(fields))
  279. r := coll.FindOne(m.Ctx, query)
  280. v := map[string]interface{}{}
  281. r.Decode(&v)
  282. return v
  283. }
  284. //find
  285. func (m *MongodbSim) Find(c string, query map[string]interface{}, sort, fields interface{}) ([]map[string]interface{}, error) {
  286. m.Open()
  287. defer m.Close()
  288. coll := m.C.Database(m.DbName).Collection(c)
  289. op := options.Find()
  290. r, err := coll.Find(m.Ctx, query, op.SetSort(sort), op.SetProjection(fields))
  291. if err != nil {
  292. log.Fatal(err)
  293. return nil, err
  294. }
  295. var results []map[string]interface{}
  296. if err = r.All(m.Ctx, &results); err != nil {
  297. log.Fatal(err)
  298. return nil, err
  299. }
  300. return results, nil
  301. }
  302. //count
  303. func (m *MongodbSim) Count(c string, query map[string]interface{}) (int64, error) {
  304. m.Open()
  305. defer m.Close()
  306. coll := m.C.Database(m.DbName).Collection(c)
  307. countDocuments, err := coll.CountDocuments(m.Ctx, query)
  308. if err != nil {
  309. log.Fatal(err)
  310. return 0, err
  311. }
  312. return countDocuments, nil
  313. }
  314. //创建_id
  315. func NewObjectId() primitive.ObjectID {
  316. return primitive.NewObjectID()
  317. }
  318. func StringTOBsonId(id string) primitive.ObjectID {
  319. objectId, _ := primitive.ObjectIDFromHex(id)
  320. return objectId
  321. }
  322. func BsonTOStringId(id interface{}) string {
  323. return id.(primitive.ObjectID).Hex()
  324. }