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@ -3,58 +3,98 @@ package main
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import (
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import (
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"context"
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"context"
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"errors"
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"errors"
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"flag"
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"fmt"
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"fmt"
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"github.com/go-sql-driver/mysql"
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"github.com/openimsdk/open-im-server/v3/pkg/common/config"
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"github.com/openimsdk/open-im-server/v3/pkg/common/db/mgo"
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"github.com/openimsdk/open-im-server/v3/pkg/common/db/mgo"
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mongoModel "github.com/openimsdk/open-im-server/v3/pkg/common/db/table/relation"
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mongoModel "github.com/openimsdk/open-im-server/v3/pkg/common/db/table/relation"
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"github.com/openimsdk/open-im-server/v3/pkg/common/db/unrelation"
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mysqlModel "github.com/openimsdk/open-im-server/v3/tools/data-conversion/openim/mysql/v3"
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mysqlModel "github.com/openimsdk/open-im-server/v3/tools/data-conversion/openim/mysql/v3"
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"go.mongodb.org/mongo-driver/bson"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo"
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"go.mongodb.org/mongo-driver/mongo/options"
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"go.mongodb.org/mongo-driver/mongo/options"
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"gorm.io/driver/mysql"
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"gopkg.in/yaml.v3"
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gormMysql "gorm.io/driver/mysql"
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"gorm.io/gorm"
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"gorm.io/gorm"
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"log"
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"log"
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"os"
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"reflect"
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"reflect"
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"strconv"
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)
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const (
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versionTable = "dataver"
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versionKey = "data_version"
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versionValue = 35
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)
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)
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func main() {
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func main() {
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var (
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var path string
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mysqlUsername = "root" // mysql用户名
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flag.StringVar(&path, "c", "", "path config file")
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mysqlPassword = "openIM123" // mysql密码
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flag.Parse()
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mysqlAddr = "127.0.0.1:13306" // mysql地址
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if err := Main(path); err != nil {
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mysqlDatabase = "openIM_v3" // mysql数据库名字
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log.Fatal(err)
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)
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return
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}
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os.Exit(0)
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}
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var s3 = "minio" // 文件储存方式 minio, cos, oss
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func InitConfig(path string) error {
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data, err := os.ReadFile(path)
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if err != nil {
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return err
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}
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return yaml.Unmarshal(data, &config.Config)
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}
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var (
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func GetMysql() (*gorm.DB, error) {
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mongoUsername = "root" // mongodb用户名
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conf := config.Config.Mysql
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mongoPassword = "openIM123" // mongodb密码
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mysqlDSN := fmt.Sprintf("%s:%s@tcp(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local", conf.Username, conf.Password, conf.Address[0], conf.Database)
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mongoHosts = "127.0.0.1:37017" // mongodb地址
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return gorm.Open(gormMysql.Open(mysqlDSN), &gorm.Config{ /* Logger: logger.Discard */ })
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mongoDatabase = "openIM_v3" // mongodb数据库名字
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}
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)
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mysqlDSN := fmt.Sprintf("%s:%s@tcp(%s)/%s?charset=utf8mb4&parseTime=True&loc=Local", mysqlUsername, mysqlPassword, mysqlAddr, mysqlDatabase)
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func GetMongo() (*mongo.Database, error) {
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mysqlDB, err := gorm.Open(mysql.Open(mysqlDSN), &gorm.Config{ /* Logger: logger.Discard */ })
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mgo, err := unrelation.NewMongo()
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if err != nil {
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if err != nil {
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log.Println("open mysql db failed", err)
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return nil, err
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return
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}
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}
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log.Println("open mysql db success")
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return mgo.GetDatabase(), nil
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var mongoURI string
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}
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if mongoPassword != "" && mongoUsername != "" {
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mongoURI = fmt.Sprintf("mongodb://%s:%s@%s/%s?maxPoolSize=%d&authSource=admin", mongoUsername, mongoPassword, mongoHosts, mongoDatabase, 100)
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func Main(path string) error {
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} else {
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if err := InitConfig(path); err != nil {
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mongoURI = fmt.Sprintf("mongodb://%s/%s/?maxPoolSize=%d&authSource=admin", mongoHosts, mongoDatabase, 100)
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return err
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}
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if config.Config.Mysql == nil {
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return nil
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}
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}
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mongoClient, err := mongo.Connect(context.Background(), options.Client().ApplyURI(mongoURI))
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mongoDB, err := GetMongo()
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if err != nil {
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if err != nil {
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log.Println("open mongo db failed", err)
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return err
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return
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}
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var version struct {
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Key string `bson:"key"`
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Value string `bson:"value"`
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}
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switch mongoDB.Collection(versionTable).FindOne(context.Background(), bson.M{"key": versionKey}).Decode(&version) {
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case nil:
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if ver, _ := strconv.Atoi(version.Value); ver >= versionValue {
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return nil
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}
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case mongo.ErrNoDocuments:
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default:
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return err
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}
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mysqlDB, err := GetMysql()
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if err != nil {
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if mysqlErr, ok := err.(*mysql.MySQLError); ok && mysqlErr.Number == 1049 {
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return nil // database not exist
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}
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return err
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}
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}
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log.Println("open mongo db success")
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mongoDB := mongoClient.Database(mongoDatabase)
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c := convert{}
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var c convert
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var tasks []func() error
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var tasks []func() error
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tasks = append(tasks,
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tasks = append(tasks,
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewUserMongo, c.User) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewUserMongo, c.User) },
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@ -65,16 +105,100 @@ func main() {
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewGroupMember, c.GroupMember) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewGroupMember, c.GroupMember) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewGroupRequestMgo, c.GroupRequest) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewGroupRequestMgo, c.GroupRequest) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewConversationMongo, c.Conversation) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewConversationMongo, c.Conversation) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewS3Mongo, c.Object(s3)) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewS3Mongo, c.Object(config.Config.Object.Enable)) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewLogMongo, c.Log) },
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func() error { return NewTask(mysqlDB, mongoDB, mgo.NewLogMongo, c.Log) },
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)
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)
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for _, task := range tasks {
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for _, task := range tasks {
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if err := task(); err != nil {
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if err := task(); err != nil {
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log.Println(err)
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return err
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return
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}
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}
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filter := bson.M{"key": versionKey, "value": version.Value}
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update := bson.M{"$set": bson.M{"key": versionKey, "value": strconv.Itoa(versionValue)}}
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if _, err := mongoDB.Collection(versionTable).UpdateOne(context.Background(), filter, update, options.Update().SetUpsert(true)); err != nil {
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return err
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}
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return nil
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}
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// NewTask A mysql table B mongodb model C mongodb table
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func NewTask[A interface{ TableName() string }, B any, C any](gormDB *gorm.DB, mongoDB *mongo.Database, mongoDBInit func(db *mongo.Database) (B, error), convert func(v A) C) error {
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obj, err := mongoDBInit(mongoDB)
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if err != nil {
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return err
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}
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var zero A
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tableName := zero.TableName()
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coll, err := getColl(obj)
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if err != nil {
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return fmt.Errorf("get mongo collection %s failed, err: %w", tableName, err)
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}
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var count int
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defer func() {
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log.Printf("completed convert %s total %d\n", tableName, count)
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}()
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const batch = 100
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for page := 0; ; page++ {
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res := make([]A, 0, batch)
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if err := gormDB.Limit(batch).Offset(page * batch).Find(&res).Error; err != nil {
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if mysqlErr, ok := err.(*mysql.MySQLError); ok && mysqlErr.Number == 1146 {
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return nil // table not exist
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}
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return fmt.Errorf("find mysql table %s failed, err: %w", tableName, err)
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}
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if len(res) == 0 {
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return nil
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}
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temp := make([]any, len(res))
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for i := range res {
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temp[i] = convert(res[i])
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}
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if err := insertMany(coll, temp); err != nil {
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return fmt.Errorf("insert mongo table %s failed, err: %w", tableName, err)
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}
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count += len(res)
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if len(res) < batch {
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return nil
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}
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log.Printf("current convert %s completed %d\n", tableName, count)
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}
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}
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func insertMany(coll *mongo.Collection, objs []any) error {
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if _, err := coll.InsertMany(context.Background(), objs); err != nil {
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if !mongo.IsDuplicateKeyError(err) {
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return err
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}
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}
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}
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}
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for i := range objs {
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_, err := coll.InsertOne(context.Background(), objs[i])
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switch {
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case err == nil:
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case mongo.IsDuplicateKeyError(err):
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default:
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return err
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}
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}
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return nil
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}
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func getColl(obj any) (_ *mongo.Collection, err error) {
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defer func() {
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if e := recover(); e != nil {
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err = fmt.Errorf("not found %+v", e)
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}
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}()
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stu := reflect.ValueOf(obj).Elem()
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typ := reflect.TypeOf(&mongo.Collection{}).String()
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for i := 0; i < stu.NumField(); i++ {
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field := stu.Field(i)
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if field.Type().String() == typ {
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return (*mongo.Collection)(field.UnsafePointer()), nil
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}
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}
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return nil, errors.New("not found")
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}
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}
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type convert struct{}
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type convert struct{}
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@ -232,60 +356,3 @@ func (convert) Log(v mysqlModel.Log) mongoModel.LogModel {
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Ex: v.Ex,
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Ex: v.Ex,
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}
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}
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}
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}
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// NewTask A mysql table B mongodb model C mongodb table
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func NewTask[A interface{ TableName() string }, B any, C any](gormDB *gorm.DB, mongoDB *mongo.Database, mongoDBInit func(db *mongo.Database) (B, error), convert func(v A) C) error {
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obj, err := mongoDBInit(mongoDB)
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if err != nil {
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return err
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}
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var zero A
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tableName := zero.TableName()
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coll, err := getColl(obj)
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if err != nil {
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return fmt.Errorf("get mongo collection %s failed, err: %w", tableName, err)
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}
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var count int
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defer func() {
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log.Printf("completed convert %s total %d\n", tableName, count)
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}()
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const batch = 100
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for page := 0; ; page++ {
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res := make([]A, 0, batch)
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if err := gormDB.Limit(batch).Offset(page * batch).Find(&res).Error; err != nil {
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return fmt.Errorf("find mysql table %s failed, err: %w", tableName, err)
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}
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if len(res) == 0 {
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return nil
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}
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temp := make([]any, len(res))
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for i := range res {
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temp[i] = convert(res[i])
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}
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if _, err := coll.InsertMany(context.Background(), temp); err != nil {
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return fmt.Errorf("insert mongo table %s failed, err: %w", tableName, err)
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}
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count += len(res)
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if len(res) < batch {
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return nil
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}
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log.Printf("current convert %s completed %d\n", tableName, count)
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}
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}
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func getColl(obj any) (_ *mongo.Collection, err error) {
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defer func() {
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if e := recover(); e != nil {
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err = fmt.Errorf("not found %+v", e)
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}
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}()
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stu := reflect.ValueOf(obj).Elem()
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typ := reflect.TypeOf(&mongo.Collection{}).String()
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for i := 0; i < stu.NumField(); i++ {
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field := stu.Field(i)
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if field.Type().String() == typ {
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return (*mongo.Collection)(field.UnsafePointer()), nil
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}
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}
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return nil, errors.New("not found")
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}
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withchao
2 years ago