Feature: support mysql 5.6 (#520)

* feat: support mysql 5.6

Signed-off-by: Gaius <gaius.qi@gmail.com>

cdnsystem/server/server.go

@@ -110,7 +110,6 @@ func New(cfg *config.Config) (*Server, error) {
 		if err := s.register(context.Background()); err != nil {
 			return nil, err
 		}
-		logger.Info("cdn register to manager")
 	}
 
 	return s, nil
@@ -180,17 +179,14 @@ func (s *Server) register(ctx context.Context) error {
 	logger.Infof("update cdn %s to manager successfully", cdn.HostName)
 
 	cdnClusterID := s.config.Manager.CDNClusterID
-	if cdnClusterID != 0 {
-		if _, err := s.managerClient.AddCDNToCDNCluster(ctx, &manager.AddCDNToCDNClusterRequest{
-			CdnId:        cdn.Id,
-			CdnClusterId: cdnClusterID,
-		}); err != nil {
-			logger.Warnf("add cdn %s to cdn cluster %s failed %v", cdn.HostName, cdnClusterID, err)
-			return err
-		}
-		logger.Infof("add cdn %s to cdn cluster %s successfully", cdn.HostName, cdnClusterID)
+	if _, err := s.managerClient.AddCDNToCDNCluster(ctx, &manager.AddCDNToCDNClusterRequest{
+		CdnId:        cdn.Id,
+		CdnClusterId: cdnClusterID,
+	}); err != nil {
+		logger.Warnf("add cdn %s to cdn cluster %s failed %v", cdn.HostName, cdnClusterID, err)
+		return err
 	}
-
+	logger.Infof("add cdn %s to cdn cluster %s successfully", cdn.HostName, cdnClusterID)
 	return nil
 }
 

go.mod

@@ -33,7 +33,6 @@ require (
 	github.com/jarcoal/httpmock v1.0.8
 	github.com/klauspost/compress v1.13.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
-	github.com/mattn/go-sqlite3 v2.0.1+incompatible // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
 	github.com/mcuadros/go-gin-prometheus v0.1.0
 	github.com/mitchellh/mapstructure v1.4.1
@@ -73,9 +72,9 @@ require (
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
-	gorm.io/datatypes v1.0.1
 	gorm.io/driver/mysql v1.0.5
 	gorm.io/gorm v1.21.9
+	gorm.io/plugin/soft_delete v1.0.2
 	k8s.io/apimachinery v0.20.6 // indirect
 	k8s.io/client-go v11.0.0+incompatible
 )

go.sum

@@ -124,9 +124,8 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/denisenkom/go-mssqldb v0.0.0-20200428022330-06a60b6afbbc h1:VRRKCwnzqk8QCaRC4os14xoKDdbHqqlJtJA0oc1ZAjg=
 github.com/denisenkom/go-mssqldb v0.0.0-20200428022330-06a60b6afbbc/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
-github.com/denisenkom/go-mssqldb v0.9.0 h1:RSohk2RsiZqLZ0zCjtfn3S4Gp4exhpBWHyQ7D0yGjAk=
-github.com/denisenkom/go-mssqldb v0.9.0/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
@@ -525,9 +524,8 @@ github.com/mattn/go-isatty v0.0.13/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Ky
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
 github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
-github.com/mattn/go-sqlite3 v1.14.5/go.mod h1:WVKg1VTActs4Qso6iwGbiFih2UIHo0ENGwNd0Lj+XmI=
-github.com/mattn/go-sqlite3 v2.0.1+incompatible h1:xQ15muvnzGBHpIpdrNi1DA5x0+TcBZzsIDwmw9uTHzw=
-github.com/mattn/go-sqlite3 v2.0.1+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
+github.com/mattn/go-sqlite3 v1.14.3 h1:j7a/xn1U6TKA/PHHxqZuzh64CdtRc7rU9M+AvkOl5bA=
+github.com/mattn/go-sqlite3 v1.14.3/go.mod h1:WVKg1VTActs4Qso6iwGbiFih2UIHo0ENGwNd0Lj+XmI=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 h1:I0XW9+e1XWDxdcEniV4rQAIOPUGDq67JSCiRCgGCZLI=
 github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
@@ -800,7 +798,6 @@ golang.org/x/crypto v0.0.0-20200117160349-530e935923ad/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
-golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
 golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e h1:gsTQYXdTw2Gq7RBsWvlQ91b+aEQ6bXFUngBGuR8sPpI=
 golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -1222,30 +1219,28 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gorm.io/datatypes v1.0.1 h1:6npnXbBtjpSb7FFVA2dG/llyTN8tvZfbUqs+WyLrYgQ=
-gorm.io/datatypes v1.0.1/go.mod h1:HEHoUU3/PO5ZXfAJcVWl11+zWlE16+O0X2DgJEb4Ixs=
 gorm.io/driver/mysql v1.0.3/go.mod h1:twGxftLBlFgNVNakL7F+P/x9oYqoymG3YYT8cAfI9oI=
 gorm.io/driver/mysql v1.0.5 h1:WAAmvLK2rG0tCOqrf5XcLi2QUwugd4rcVJ/W3aoon9o=
 gorm.io/driver/mysql v1.0.5/go.mod h1:N1OIhHAIhx5SunkMGqWbGFVeh4yTNWKmMo1GOAsohLI=
 gorm.io/driver/postgres v1.0.8 h1:PAgM+PaHOSAeroTjHkCHCBIHHoBIf9RgPWGo8dF2DA8=
 gorm.io/driver/postgres v1.0.8/go.mod h1:4eOzrI1MUfm6ObJU/UcmbXyiHSs8jSwH95G5P5dxcAg=
-gorm.io/driver/sqlite v1.1.4 h1:PDzwYE+sI6De2+mxAneV9Xs11+ZyKV6oxD3wDGkaNvM=
-gorm.io/driver/sqlite v1.1.4/go.mod h1:mJCeTFr7+crvS+TRnWc5Z3UvwxUN1BGBLMrf5LA9DYw=
+gorm.io/driver/sqlite v1.1.3 h1:BYfdVuZB5He/u9dt4qDpZqiqDJ6KhPqs5QUqsr/Eeuc=
+gorm.io/driver/sqlite v1.1.3/go.mod h1:AKDgRWk8lcSQSw+9kxCJnX/yySj8G3rdwYlU57cB45c=
+gorm.io/driver/sqlserver v1.0.4 h1:V15fszi0XAo7fbx3/cF50ngshDSN4QT0MXpWTylyPTY=
 gorm.io/driver/sqlserver v1.0.4/go.mod h1:ciEo5btfITTBCj9BkoUVDvgQbUdLWQNqdFY5OGuGnRg=
-gorm.io/driver/sqlserver v1.0.7 h1:uwUtb0kdFwW5PkRbd2KJ2h4wlsqvLSjox1XVg/RnzRE=
-gorm.io/driver/sqlserver v1.0.7/go.mod h1:ng66aHI47ZIKz/vvnxzDoonzmTS8HXP+JYlgg67wOog=
 gorm.io/gorm v1.20.0/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
+gorm.io/gorm v1.20.1/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
 gorm.io/gorm v1.20.4/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
-gorm.io/gorm v1.20.7/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
 gorm.io/gorm v1.20.11/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
 gorm.io/gorm v1.20.12/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
 gorm.io/gorm v1.21.3/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
-gorm.io/gorm v1.21.4/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
-gorm.io/gorm v1.21.6/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0=
+gorm.io/gorm v1.21.7/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0=
 gorm.io/gorm v1.21.9 h1:INieZtn4P2Pw6xPJ8MzT0G4WUOsHq3RhfuDF1M6GW0E=
 gorm.io/gorm v1.21.9/go.mod h1:F+OptMscr0P2F2qU97WT1WimdH9GaQPoDW7AYd5i2Y0=
 gorm.io/plugin/dbresolver v1.1.0 h1:cegr4DeprR6SkLIQlKhJLYxH8muFbJ4SmnojXvoeb00=
 gorm.io/plugin/dbresolver v1.1.0/go.mod h1:tpImigFAEejCALOttyhWqsy4vfa2Uh/vAUVnL5IRF7Y=
+gorm.io/plugin/soft_delete v1.0.2 h1:BrchTwbT4qjAJrTjXeAOhdqRnWgRhaIxnQMCTgNYVoQ=
+gorm.io/plugin/soft_delete v1.0.2/go.mod h1:gBRnGiHKEXQIST8E/EWXkzQQFzJ09Rk+ZNqmHrrLPEA=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

manager/config/config.go

@@ -31,6 +31,7 @@ type MysqlConfig struct {
 	Host     string `yaml:"host" mapstructure:"host"`
 	Port     int    `yaml:"port" mapstructure:"port"`
 	DBName   string `yaml:"dbname" mapstructure:"dbname"`
+	Migrate  bool   `yaml:"migrate" mapstructure:"migrate"`
 }
 
 type RedisConfig struct {
@@ -93,6 +94,9 @@ func New() *Config {
 				BrokerDB:  1,
 				BackendDB: 2,
 			},
+			Mysql: &MysqlConfig{
+				Migrate: true,
+			},
 		},
 		Cache: &CacheConfig{
 			Redis: &RedisCacheConfig{
@@ -139,6 +143,9 @@ func (cfg *Config) Validate() error {
 		}
 
 		if cfg.Database.Mysql == nil {
+			if cfg.Database.Mysql.Host == "" {
+				return errors.New("empty cache mysql host is not specified")
+			}
 			return errors.New("empty cache mysql config is not specified")
 		}
 	}

manager/database/database.go

@@ -44,14 +44,17 @@ func newMyqsl(cfg *config.MysqlConfig) (*gorm.DB, error) {
 		NamingStrategy: schema.NamingStrategy{
 			SingularTable: true,
 		},
+		DisableForeignKeyConstraintWhenMigrating: true,
 	})
 	if err != nil {
 		return nil, err
 	}
 
 	// Run migration
-	if err := migrate(db); err != nil {
-		return nil, err
+	if cfg.Migrate {
+		if err := migrate(db); err != nil {
+			return nil, err
+		}
 	}
 
 	// Run seed
@@ -63,7 +66,7 @@ func newMyqsl(cfg *config.MysqlConfig) (*gorm.DB, error) {
 }
 
 func migrate(db *gorm.DB) error {
-	return db.AutoMigrate(
+	return db.Set("gorm:table_options", "DEFAULT CHARSET=utf8mb4 ROW_FORMAT=Dynamic").AutoMigrate(
 		&model.CDNCluster{},
 		&model.CDN{},
 		&model.SchedulerCluster{},
@@ -87,26 +90,6 @@ func seed(db *gorm.DB) error {
 		}
 	}
 
-	var adminUserCount int64
-	var adminUserName = "admin"
-	if err := db.Model(model.User{}).Where("name = ?", adminUserName).Count(&adminUserCount).Error; err != nil {
-		return err
-	}
-	if adminUserCount <= 0 {
-		encryptedPasswordBytes, err := bcrypt.GenerateFromPassword([]byte("Dragonfly2"), bcrypt.MinCost)
-		if err != nil {
-			return err
-		}
-		if err := db.Create(&model.User{
-			EncryptedPassword: string(encryptedPasswordBytes),
-			Name:              adminUserName,
-			Email:             fmt.Sprintf("%s@Dragonfly2.com", adminUserName),
-			State:             model.UserStateEnabled,
-		}).Error; err != nil {
-			return err
-		}
-	}
-
 	var schedulerClusterCount int64
 	if err := db.Model(model.SchedulerCluster{}).Count(&schedulerClusterCount).Error; err != nil {
 		return err
@@ -138,5 +121,25 @@ func seed(db *gorm.DB) error {
 		}
 	}
 
+	var adminUserCount int64
+	var adminUserName = "admin"
+	if err := db.Model(model.User{}).Where("name = ?", adminUserName).Count(&adminUserCount).Error; err != nil {
+		return err
+	}
+	if adminUserCount <= 0 {
+		encryptedPasswordBytes, err := bcrypt.GenerateFromPassword([]byte("Dragonfly2"), bcrypt.MinCost)
+		if err != nil {
+			return err
+		}
+		if err := db.Create(&model.User{
+			EncryptedPassword: string(encryptedPasswordBytes),
+			Name:              adminUserName,
+			Email:             fmt.Sprintf("%s@Dragonfly2.com", adminUserName),
+			State:             model.UserStateEnabled,
+		}).Error; err != nil {
+			return err
+		}
+	}
+
 	return nil
 }

manager/model/casbin_rule.go

@@ -0,0 +1,12 @@
+package model
+
+type CasbinRule struct {
+	ID    uint   `gorm:"primaryKey;autoIncrement;comment:id"`
+	Ptype string `gorm:"type:varchar(100);default:NULL;uniqueIndex:uk_casbin_rule;comment:policy type"`
+	V0    string `gorm:"type:varchar(100);default:NULL;uniqueIndex:uk_casbin_rule;comment:v0"`
+	V1    string `gorm:"type:varchar(100);default:NULL;uniqueIndex:uk_casbin_rule;comment:v1"`
+	V2    string `gorm:"type:varchar(100);default:NULL;uniqueIndex:uk_casbin_rule;comment:v2"`
+	V3    string `gorm:"type:varchar(100);default:NULL;uniqueIndex:uk_casbin_rule;comment:v3"`
+	V4    string `gorm:"type:varchar(100);default:NULL;uniqueIndex:uk_casbin_rule;comment:v4"`
+	V5    string `gorm:"type:varchar(100);default:NULL;uniqueIndex:uk_casbin_rule;comment:v5"`
+}

manager/model/cdn.go

@@ -7,13 +7,13 @@ const (
 
 type CDN struct {
 	Model
-	HostName     string `gorm:"column:host_name;size:256;uniqueIndex;not null" json:"host_name"`
-	IDC          string `gorm:"column:idc;size:1024" json:"idc"`
-	Location     string `gorm:"column:location;size:1024" json:"location"`
-	IP           string `gorm:"column:ip;size:256;not null" json:"ip"`
-	Port         int32  `gorm:"column:port;not null" json:"port"`
-	DownloadPort int32  `gorm:"column:download_port;not null" json:"download_port"`
-	Status       string `gorm:"type:enum('active', 'inactive');default:'inactive'" json:"status"`
-	CDNClusterID *uint
+	HostName     string     `gorm:"column:host_name;type:varchar(256);index:uk_scheduler_cluster_name,unique;not null;comment:hostname" json:"host_name"`
+	IDC          string     `gorm:"column:idc;type:varchar(1024);comment:internet data center" json:"idc"`
+	Location     string     `gorm:"column:location;type:varchar(1024);comment:location" json:"location"`
+	IP           string     `gorm:"column:ip;type:varchar(256);not null;comment:ip address" json:"ip"`
+	Port         int32      `gorm:"column:port;not null;comment:grpc service listening port" json:"port"`
+	DownloadPort int32      `gorm:"column:download_port;not null;comment:download service listening port" json:"download_port"`
+	Status       string     `gorm:"column:status;type:varchar(256);default:'inactive';comment:service status" json:"status"`
+	CDNClusterID *uint      `gorm:"index:idx_cdn_cluster_cd_ns;comment:cdn cluster id"`
 	CDNCluster   CDNCluster `json:"-"`
 }

manager/model/cdn_cluster.go

@@ -1,16 +1,12 @@
 package model
 
-import (
-	"gorm.io/datatypes"
-)
-
 type CDNCluster struct {
 	Model
-	Name              string             `gorm:"column:name;size:256;uniqueIndex;not null" json:"name"`
-	BIO               string             `gorm:"column:bio;size:1024" json:"bio"`
-	Config            datatypes.JSONMap  `gorm:"column:config;not null" json:"config"`
+	Name              string             `gorm:"column:name;type:varchar(256);index:uk_cdn_cluster_name,unique;not null;comment:name" json:"name"`
+	BIO               string             `gorm:"column:bio;type:varchar(1024);comment:biography" json:"bio"`
+	Config            JSONMap            `gorm:"column:config;not null;comment:configuration" json:"config"`
 	SchedulerClusters []SchedulerCluster `gorm:"many2many:cdn_cluster_scheduler_cluster;" json:"-"`
 	CDNs              []CDN              `json:"-"`
-	SecurityGroupID   *uint
-	SecurityGroup     SecurityGroup `json:"-"`
+	SecurityGroupID   *uint              `gorm:"comment:security group id"`
+	SecurityGroup     SecurityGroup      `json:"-"`
 }

manager/model/models.go

@@ -1,16 +1,22 @@
 package model
 
 import (
+	"database/sql/driver"
+	"encoding/json"
+	"errors"
+	"fmt"
 	"time"
 
 	"gorm.io/gorm"
+	"gorm.io/gorm/schema"
+	"gorm.io/plugin/soft_delete"
 )
 
 type Model struct {
-	ID        uint           `gorm:"primarykey" json:"id"`
-	CreatedAt time.Time      `json:"created_at"`
-	UpdatedAt time.Time      `json:"updated_at"`
-	DeletedAt gorm.DeletedAt `gorm:"index" json:"deleted_at"`
+	ID        uint                  `gorm:"primarykey;comment:id" json:"id"`
+	CreatedAt time.Time             `gorm:"column:created_at;type:timestamp;comment:created timestamp" json:"created_at"`
+	UpdatedAt time.Time             `gorm:"column:updated_at;type:timestamp;comment:updated timestamp" json:"updated_at"`
+	IsDel     soft_delete.DeletedAt `gorm:"softDelete:flag;comment:soft delete flag"`
 }
 
 func Paginate(page, perPage int) func(db *gorm.DB) *gorm.DB {
@@ -19,3 +25,52 @@ func Paginate(page, perPage int) func(db *gorm.DB) *gorm.DB {
 		return db.Offset(offset).Limit(perPage)
 	}
 }
+
+type JSONMap map[string]interface{}
+
+func (m JSONMap) Value() (driver.Value, error) {
+	if m == nil {
+		return nil, nil
+	}
+	ba, err := m.MarshalJSON()
+	return string(ba), err
+}
+
+func (m *JSONMap) Scan(val interface{}) error {
+	var ba []byte
+	switch v := val.(type) {
+	case []byte:
+		ba = v
+	case string:
+		ba = []byte(v)
+	default:
+		return errors.New(fmt.Sprint("Failed to unmarshal JSONB value:", val))
+	}
+	t := map[string]interface{}{}
+	err := json.Unmarshal(ba, &t)
+	*m = JSONMap(t)
+	return err
+}
+
+func (m JSONMap) MarshalJSON() ([]byte, error) {
+	if m == nil {
+		return []byte("null"), nil
+	}
+	t := (map[string]interface{})(m)
+	return json.Marshal(t)
+}
+
+func (m *JSONMap) UnmarshalJSON(b []byte) error {
+	t := map[string]interface{}{}
+	err := json.Unmarshal(b, &t)
+	*m = JSONMap(t)
+	return err
+}
+
+func (m JSONMap) GormDataType() string {
+	return "jsonmap"
+}
+
+func (JSONMap) GormDBDataType(db *gorm.DB, field *schema.Field) string {
+	return "text"
+}