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将gorm适配器调整至本地避免windows没有gcc的情况导致系统无法启动

pixel 3 年之前
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db81460c35
共有 4 个文件被更改,包括 662 次插入5 次删除
  1. 5 3
      server/go.mod
  2. 1 1
      server/service/sys_casbin.go
  3. 1 1
      server/source/casbin.go
  4. 655 0
      server/utils/gormadapter/adapter.go

+ 5 - 3
server/go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/aliyun/aliyun-oss-go-sdk v2.1.6+incompatible
 	github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f // indirect
 	github.com/casbin/casbin/v2 v2.25.6
-	github.com/casbin/gorm-adapter/v3 v3.2.5
+	//github.com/casbin/gorm-adapter/v3 v3.2.5
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/fastly/go-utils v0.0.0-20180712184237-d95a45783239 // indirect
 	github.com/fsnotify/fsnotify v1.4.9
@@ -23,6 +23,7 @@ require (
 	github.com/go-sql-driver/mysql v1.5.0
 	github.com/golang/protobuf v1.4.2 // indirect
 	github.com/gookit/color v1.3.1
+	github.com/jackc/pgconn v1.8.1
 	github.com/jehiah/go-strftime v0.0.0-20171201141054-1d33003b3869 // indirect
 	github.com/jordan-wright/email v0.0.0-20200824153738-3f5bafa1cd84
 	github.com/json-iterator/go v1.1.10 // indirect
@@ -49,11 +50,12 @@ require (
 	github.com/tencentyun/cos-go-sdk-v5 v0.7.19
 	github.com/unrolled/secure v1.0.7
 	go.uber.org/zap v1.10.0
-	golang.org/x/net v0.0.0-20201224014010-6772e930b67b // indirect
 	golang.org/x/tools v0.0.0-20200324003944-a576cf524670 // indirect
 	google.golang.org/protobuf v1.24.0 // indirect
 	gopkg.in/ini.v1 v1.55.0 // indirect
 	gopkg.in/yaml.v2 v2.3.0 // indirect
 	gorm.io/driver/mysql v1.0.1
-	gorm.io/gorm v1.20.9
+	gorm.io/driver/postgres v1.0.8
+	gorm.io/driver/sqlserver v1.0.7
+	gorm.io/gorm v1.21.4
 )

+ 1 - 1
server/service/sys_casbin.go

@@ -7,9 +7,9 @@ import (
 	"gin-vue-admin/model/request"
 	"strings"
 
+	"gin-vue-admin/utils/gormadapter"
 	"github.com/casbin/casbin/v2"
 	"github.com/casbin/casbin/v2/util"
-	gormadapter "github.com/casbin/gorm-adapter/v3"
 	_ "github.com/go-sql-driver/mysql"
 )
 

+ 1 - 1
server/source/casbin.go

@@ -3,7 +3,7 @@ package source
 import (
 	"gin-vue-admin/global"
 
-	gormadapter "github.com/casbin/gorm-adapter/v3"
+	"gin-vue-admin/utils/gormadapter"
 	"github.com/gookit/color"
 	"gorm.io/gorm"
 )

+ 655 - 0
server/utils/gormadapter/adapter.go

@@ -0,0 +1,655 @@
+// Copyright 2017 The casbin Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// Because SQLite3 needs CGO and windows environment does not actively have GCC
+// It is necessary to comment out the SQLite3 code.
+// The modification content is to comment the package about SQLite3
+
+package gormadapter
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"runtime"
+	"strings"
+
+	"github.com/casbin/casbin/v2/model"
+	"github.com/casbin/casbin/v2/persist"
+	"github.com/jackc/pgconn"
+	"gorm.io/driver/mysql"
+	"gorm.io/driver/postgres"
+	//"gorm.io/driver/sqlite"
+	"gorm.io/driver/sqlserver"
+	"gorm.io/gorm"
+)
+
+const (
+	defaultDatabaseName = "casbin"
+	defaultTableName    = "casbin_rule"
+)
+
+type customTableKey struct{}
+
+type CasbinRule struct {
+	ID    uint   `gorm:"primaryKey;autoIncrement"`
+	Ptype string `gorm:"size:100"`
+	V0    string `gorm:"size:100"`
+	V1    string `gorm:"size:100"`
+	V2    string `gorm:"size:100"`
+	V3    string `gorm:"size:100"`
+	V4    string `gorm:"size:100"`
+	V5    string `gorm:"size:100"`
+}
+
+func (CasbinRule) TableName() string {
+	return "casbin_rule"
+}
+
+type Filter struct {
+	PType []string
+	V0    []string
+	V1    []string
+	V2    []string
+	V3    []string
+	V4    []string
+	V5    []string
+}
+
+// Adapter represents the Gorm adapter for policy storage.
+type Adapter struct {
+	driverName     string
+	dataSourceName string
+	databaseName   string
+	tablePrefix    string
+	tableName      string
+	dbSpecified    bool
+	db             *gorm.DB
+	isFiltered     bool
+}
+
+// finalizer is the destructor for Adapter.
+func finalizer(a *Adapter) {
+	sqlDB, err := a.db.DB()
+	if err != nil {
+		panic(err)
+	}
+	err = sqlDB.Close()
+	if err != nil {
+		panic(err)
+	}
+}
+
+// NewAdapter is the constructor for Adapter.
+// Params : databaseName,tableName,dbSpecified
+//			databaseName,{tableName/dbSpecified}
+//			{database/dbSpecified}
+// databaseName and tableName are user defined.
+// Their default value are "casbin" and "casbin_rule"
+//
+// dbSpecified is an optional bool parameter. The default value is false.
+// It's up to whether you have specified an existing DB in dataSourceName.
+// If dbSpecified == true, you need to make sure the DB in dataSourceName exists.
+// If dbSpecified == false, the adapter will automatically create a DB named databaseName.
+func NewAdapter(driverName string, dataSourceName string, params ...interface{}) (*Adapter, error) {
+	a := &Adapter{}
+	a.driverName = driverName
+	a.dataSourceName = dataSourceName
+
+	a.tableName = defaultTableName
+	a.databaseName = defaultDatabaseName
+	a.dbSpecified = false
+
+	if len(params) == 1 {
+		switch p1 := params[0].(type) {
+		case bool:
+			a.dbSpecified = p1
+		case string:
+			a.databaseName = p1
+		default:
+			return nil, errors.New("wrong format")
+		}
+	} else if len(params) == 2 {
+		switch p2 := params[1].(type) {
+		case bool:
+			a.dbSpecified = p2
+			p1, ok := params[0].(string)
+			if !ok {
+				return nil, errors.New("wrong format")
+			}
+			a.databaseName = p1
+		case string:
+			p1, ok := params[0].(string)
+			if !ok {
+				return nil, errors.New("wrong format")
+			}
+			a.databaseName = p1
+			a.tableName = p2
+		default:
+			return nil, errors.New("wrong format")
+		}
+	} else if len(params) == 3 {
+		if p3, ok := params[2].(bool); ok {
+			a.dbSpecified = p3
+			a.databaseName = params[0].(string)
+			a.tableName = params[1].(string)
+		} else {
+			return nil, errors.New("wrong format")
+		}
+	} else if len(params) != 0 {
+		return nil, errors.New("too many parameters")
+	}
+
+	// Open the DB, create it if not existed.
+	err := a.open()
+	if err != nil {
+		return nil, err
+	}
+
+	// Call the destructor when the object is released.
+	runtime.SetFinalizer(a, finalizer)
+
+	return a, nil
+}
+
+// NewAdapterByDBUseTableName creates gorm-adapter by an existing Gorm instance and the specified table prefix and table name
+// Example: gormadapter.NewAdapterByDBUseTableName(&db, "cms", "casbin") Automatically generate table name like this "cms_casbin"
+func NewAdapterByDBUseTableName(db *gorm.DB, prefix string, tableName string) (*Adapter, error) {
+	if len(tableName) == 0 {
+		tableName = defaultTableName
+	}
+
+	a := &Adapter{
+		tablePrefix: prefix,
+		tableName:   tableName,
+	}
+
+	a.db = db.Scopes(a.casbinRuleTable()).Session(&gorm.Session{Context: db.Statement.Context})
+	err := a.createTable()
+	if err != nil {
+		return nil, err
+	}
+
+	return a, nil
+}
+
+// NewFilteredAdapter is the constructor for FilteredAdapter.
+// Casbin will not automatically call LoadPolicy() for a filtered adapter.
+func NewFilteredAdapter(driverName string, dataSourceName string, params ...interface{}) (*Adapter, error) {
+	adapter, err := NewAdapter(driverName, dataSourceName, params...)
+	if err != nil {
+		return nil, err
+	}
+	adapter.isFiltered = true
+	return adapter, err
+}
+
+// NewAdapterByDB creates gorm-adapter by an existing Gorm instance
+func NewAdapterByDB(db *gorm.DB) (*Adapter, error) {
+	return NewAdapterByDBUseTableName(db, "", defaultTableName)
+}
+
+func NewAdapterByDBWithCustomTable(db *gorm.DB, t interface{}) (*Adapter, error) {
+	ctx := db.Statement.Context
+	if ctx == nil {
+		ctx = context.Background()
+	}
+
+	ctx = context.WithValue(ctx, customTableKey{}, t)
+
+	return NewAdapterByDBUseTableName(db.WithContext(ctx), "", defaultTableName)
+}
+
+func openDBConnection(driverName, dataSourceName string) (*gorm.DB, error) {
+	var err error
+	var db *gorm.DB
+	if driverName == "postgres" {
+		db, err = gorm.Open(postgres.Open(dataSourceName), &gorm.Config{})
+	} else if driverName == "mysql" {
+		db, err = gorm.Open(mysql.Open(dataSourceName), &gorm.Config{})
+	} else if driverName == "sqlserver" {
+		db, err = gorm.Open(sqlserver.Open(dataSourceName), &gorm.Config{})
+	} else {
+		return nil, errors.New("database dialect is not supported")
+	}
+
+	// If you need SQLite, fill in the code above
+	/*   else if driverName == "sqlite3" {
+		db, err = gorm.Open(sqlite.Open(dataSourceName), &gorm.Config{})
+	} */
+
+	if err != nil {
+		return nil, err
+	}
+	return db, err
+}
+
+func (a *Adapter) createDatabase() error {
+	var err error
+	db, err := openDBConnection(a.driverName, a.dataSourceName)
+	if err != nil {
+		return err
+	}
+	if a.driverName == "postgres" {
+		if err = db.Exec("CREATE DATABASE " + a.databaseName).Error; err != nil {
+			// 42P04 is	duplicate_database
+			if err.(*pgconn.PgError).Code == "42P04" {
+				return nil
+			}
+		}
+	}
+
+	// If you need SQLite, fill in the code above
+	/*  else if a.driverName != "sqlite3" {
+		err = db.Exec("CREATE DATABASE IF NOT EXISTS " + a.databaseName).Error
+	} */
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (a *Adapter) open() error {
+	var err error
+	var db *gorm.DB
+
+	if a.dbSpecified {
+		db, err = openDBConnection(a.driverName, a.dataSourceName)
+		if err != nil {
+			return err
+		}
+	} else {
+		if err = a.createDatabase(); err != nil {
+			return err
+		}
+		if a.driverName == "postgres" {
+			db, err = openDBConnection(a.driverName, a.dataSourceName+" dbname="+a.databaseName)
+		} else {
+			db, err = openDBConnection(a.driverName, a.dataSourceName+a.databaseName)
+		}
+
+		// If you need SQLite, fill in the code above
+		/* else if a.driverName == "sqlite3" {
+			db, err = openDBConnection(a.driverName, a.dataSourceName)
+		} */
+		if err != nil {
+			return err
+		}
+	}
+
+	a.db = db.Scopes(a.casbinRuleTable()).Session(&gorm.Session{})
+	return a.createTable()
+}
+
+func (a *Adapter) close() error {
+	a.db = nil
+	return nil
+}
+
+// getTableInstance return the dynamic table name
+func (a *Adapter) getTableInstance() *CasbinRule {
+	return &CasbinRule{}
+}
+
+func (a *Adapter) getFullTableName() string {
+	if a.tablePrefix != "" {
+		return a.tablePrefix + "_" + a.tableName
+	}
+	return a.tableName
+}
+
+func (a *Adapter) casbinRuleTable() func(db *gorm.DB) *gorm.DB {
+	return func(db *gorm.DB) *gorm.DB {
+		tableName := a.getFullTableName()
+		return db.Table(tableName)
+	}
+}
+
+func (a *Adapter) createTable() error {
+	t := a.db.Statement.Context.Value(customTableKey{})
+
+	if t != nil {
+		return a.db.AutoMigrate(t)
+	}
+
+	t = a.getTableInstance()
+	if err := a.db.AutoMigrate(t); err != nil {
+		return err
+	}
+
+	tableName := a.getFullTableName()
+	index := "idx_" + tableName
+	hasIndex := a.db.Migrator().HasIndex(t, index)
+	if !hasIndex {
+		if err := a.db.Exec(fmt.Sprintf("CREATE UNIQUE INDEX %s ON %s (ptype,v0,v1,v2,v3,v4,v5)", index, tableName)).Error; err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func (a *Adapter) dropTable() error {
+	t := a.db.Statement.Context.Value(customTableKey{})
+	if t == nil {
+		return a.db.Migrator().DropTable(a.getTableInstance())
+	}
+
+	return a.db.Migrator().DropTable(t)
+}
+
+func loadPolicyLine(line CasbinRule, model model.Model) {
+	var p = []string{line.Ptype,
+		line.V0, line.V1, line.V2, line.V3, line.V4, line.V5}
+
+	var lineText string
+	if line.V5 != "" {
+		lineText = strings.Join(p, ", ")
+	} else if line.V4 != "" {
+		lineText = strings.Join(p[:6], ", ")
+	} else if line.V3 != "" {
+		lineText = strings.Join(p[:5], ", ")
+	} else if line.V2 != "" {
+		lineText = strings.Join(p[:4], ", ")
+	} else if line.V1 != "" {
+		lineText = strings.Join(p[:3], ", ")
+	} else if line.V0 != "" {
+		lineText = strings.Join(p[:2], ", ")
+	}
+
+	persist.LoadPolicyLine(lineText, model)
+}
+
+// LoadPolicy loads policy from database.
+func (a *Adapter) LoadPolicy(model model.Model) error {
+	var lines []CasbinRule
+	if err := a.db.Order("ID").Find(&lines).Error; err != nil {
+		return err
+	}
+
+	for _, line := range lines {
+		loadPolicyLine(line, model)
+	}
+
+	return nil
+}
+
+// LoadFilteredPolicy loads only policy rules that match the filter.
+func (a *Adapter) LoadFilteredPolicy(model model.Model, filter interface{}) error {
+	var lines []CasbinRule
+
+	filterValue, ok := filter.(Filter)
+	if !ok {
+		return errors.New("invalid filter type")
+	}
+
+	if err := a.db.Scopes(a.filterQuery(a.db, filterValue)).Order("ID").Find(&lines).Error; err != nil {
+		return err
+	}
+
+	for _, line := range lines {
+		loadPolicyLine(line, model)
+	}
+	a.isFiltered = true
+
+	return nil
+}
+
+// IsFiltered returns true if the loaded policy has been filtered.
+func (a *Adapter) IsFiltered() bool {
+	return a.isFiltered
+}
+
+// filterQuery builds the gorm query to match the rule filter to use within a scope.
+func (a *Adapter) filterQuery(db *gorm.DB, filter Filter) func(db *gorm.DB) *gorm.DB {
+	return func(db *gorm.DB) *gorm.DB {
+		if len(filter.PType) > 0 {
+			db = db.Where("ptype in (?)", filter.PType)
+		}
+		if len(filter.V0) > 0 {
+			db = db.Where("v0 in (?)", filter.V0)
+		}
+		if len(filter.V1) > 0 {
+			db = db.Where("v1 in (?)", filter.V1)
+		}
+		if len(filter.V2) > 0 {
+			db = db.Where("v2 in (?)", filter.V2)
+		}
+		if len(filter.V3) > 0 {
+			db = db.Where("v3 in (?)", filter.V3)
+		}
+		if len(filter.V4) > 0 {
+			db = db.Where("v4 in (?)", filter.V4)
+		}
+		if len(filter.V5) > 0 {
+			db = db.Where("v5 in (?)", filter.V5)
+		}
+		return db
+	}
+}
+
+func (a *Adapter) savePolicyLine(ptype string, rule []string) CasbinRule {
+	line := a.getTableInstance()
+
+	line.Ptype = ptype
+	if len(rule) > 0 {
+		line.V0 = rule[0]
+	}
+	if len(rule) > 1 {
+		line.V1 = rule[1]
+	}
+	if len(rule) > 2 {
+		line.V2 = rule[2]
+	}
+	if len(rule) > 3 {
+		line.V3 = rule[3]
+	}
+	if len(rule) > 4 {
+		line.V4 = rule[4]
+	}
+	if len(rule) > 5 {
+		line.V5 = rule[5]
+	}
+
+	return *line
+}
+
+// SavePolicy saves policy to database.
+func (a *Adapter) SavePolicy(model model.Model) error {
+	err := a.dropTable()
+	if err != nil {
+		return err
+	}
+	err = a.createTable()
+	if err != nil {
+		return err
+	}
+
+	for ptype, ast := range model["p"] {
+		for _, rule := range ast.Policy {
+			line := a.savePolicyLine(ptype, rule)
+			err := a.db.Create(&line).Error
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	for ptype, ast := range model["g"] {
+		for _, rule := range ast.Policy {
+			line := a.savePolicyLine(ptype, rule)
+			err := a.db.Create(&line).Error
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
+// AddPolicy adds a policy rule to the storage.
+func (a *Adapter) AddPolicy(sec string, ptype string, rule []string) error {
+	line := a.savePolicyLine(ptype, rule)
+	err := a.db.Create(&line).Error
+	return err
+}
+
+// RemovePolicy removes a policy rule from the storage.
+func (a *Adapter) RemovePolicy(sec string, ptype string, rule []string) error {
+	line := a.savePolicyLine(ptype, rule)
+	err := a.rawDelete(a.db, line) //can't use db.Delete as we're not using primary key http://jinzhu.me/gorm/crud.html#delete
+	return err
+}
+
+// AddPolicies adds multiple policy rules to the storage.
+func (a *Adapter) AddPolicies(sec string, ptype string, rules [][]string) error {
+	return a.db.Transaction(func(tx *gorm.DB) error {
+		for _, rule := range rules {
+			line := a.savePolicyLine(ptype, rule)
+			if err := tx.Create(&line).Error; err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+// RemovePolicies removes multiple policy rules from the storage.
+func (a *Adapter) RemovePolicies(sec string, ptype string, rules [][]string) error {
+	return a.db.Transaction(func(tx *gorm.DB) error {
+		for _, rule := range rules {
+			line := a.savePolicyLine(ptype, rule)
+			if err := a.rawDelete(tx, line); err != nil { //can't use db.Delete as we're not using primary key http://jinzhu.me/gorm/crud.html#delete
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+// RemoveFilteredPolicy removes policy rules that match the filter from the storage.
+func (a *Adapter) RemoveFilteredPolicy(sec string, ptype string, fieldIndex int, fieldValues ...string) error {
+	line := a.getTableInstance()
+
+	line.Ptype = ptype
+	if fieldIndex <= 0 && 0 < fieldIndex+len(fieldValues) {
+		line.V0 = fieldValues[0-fieldIndex]
+	}
+	if fieldIndex <= 1 && 1 < fieldIndex+len(fieldValues) {
+		line.V1 = fieldValues[1-fieldIndex]
+	}
+	if fieldIndex <= 2 && 2 < fieldIndex+len(fieldValues) {
+		line.V2 = fieldValues[2-fieldIndex]
+	}
+	if fieldIndex <= 3 && 3 < fieldIndex+len(fieldValues) {
+		line.V3 = fieldValues[3-fieldIndex]
+	}
+	if fieldIndex <= 4 && 4 < fieldIndex+len(fieldValues) {
+		line.V4 = fieldValues[4-fieldIndex]
+	}
+	if fieldIndex <= 5 && 5 < fieldIndex+len(fieldValues) {
+		line.V5 = fieldValues[5-fieldIndex]
+	}
+	err := a.rawDelete(a.db, *line)
+	return err
+}
+
+func (a *Adapter) rawDelete(db *gorm.DB, line CasbinRule) error {
+	queryArgs := []interface{}{line.Ptype}
+
+	queryStr := "ptype = ?"
+	if line.V0 != "" {
+		queryStr += " and v0 = ?"
+		queryArgs = append(queryArgs, line.V0)
+	}
+	if line.V1 != "" {
+		queryStr += " and v1 = ?"
+		queryArgs = append(queryArgs, line.V1)
+	}
+	if line.V2 != "" {
+		queryStr += " and v2 = ?"
+		queryArgs = append(queryArgs, line.V2)
+	}
+	if line.V3 != "" {
+		queryStr += " and v3 = ?"
+		queryArgs = append(queryArgs, line.V3)
+	}
+	if line.V4 != "" {
+		queryStr += " and v4 = ?"
+		queryArgs = append(queryArgs, line.V4)
+	}
+	if line.V5 != "" {
+		queryStr += " and v5 = ?"
+		queryArgs = append(queryArgs, line.V5)
+	}
+	args := append([]interface{}{queryStr}, queryArgs...)
+	err := db.Delete(a.getTableInstance(), args...).Error
+	return err
+}
+
+func appendWhere(line CasbinRule) (string, []interface{}) {
+	queryArgs := []interface{}{line.Ptype}
+
+	queryStr := "ptype = ?"
+	if line.V0 != "" {
+		queryStr += " and v0 = ?"
+		queryArgs = append(queryArgs, line.V0)
+	}
+	if line.V1 != "" {
+		queryStr += " and v1 = ?"
+		queryArgs = append(queryArgs, line.V1)
+	}
+	if line.V2 != "" {
+		queryStr += " and v2 = ?"
+		queryArgs = append(queryArgs, line.V2)
+	}
+	if line.V3 != "" {
+		queryStr += " and v3 = ?"
+		queryArgs = append(queryArgs, line.V3)
+	}
+	if line.V4 != "" {
+		queryStr += " and v4 = ?"
+		queryArgs = append(queryArgs, line.V4)
+	}
+	if line.V5 != "" {
+		queryStr += " and v5 = ?"
+		queryArgs = append(queryArgs, line.V5)
+	}
+	return queryStr, queryArgs
+}
+
+// UpdatePolicy updates a new policy rule to DB.
+func (a *Adapter) UpdatePolicy(sec string, ptype string, oldRule, newPolicy []string) error {
+	oldLine := a.savePolicyLine(ptype, oldRule)
+	newLine := a.savePolicyLine(ptype, newPolicy)
+	return a.db.Model(&oldLine).Where(&oldLine).Updates(newLine).Error
+}
+
+func (a *Adapter) UpdatePolicies(sec string, ptype string, oldRules, newRules [][]string) error {
+	oldPolicies := make([]CasbinRule, 0, len(oldRules))
+	newPolicies := make([]CasbinRule, 0, len(oldRules))
+	for _, oldRule := range oldRules {
+		oldPolicies = append(oldPolicies, a.savePolicyLine(ptype, oldRule))
+	}
+	for _, newRule := range newRules {
+		newPolicies = append(newPolicies, a.savePolicyLine(ptype, newRule))
+	}
+	tx := a.db.Begin()
+	for i := range oldPolicies {
+		if err := tx.Model(&oldPolicies[i]).Where(&oldPolicies[i]).Updates(newPolicies[i]).Error; err != nil {
+			tx.Rollback()
+			return err
+		}
+	}
+	return tx.Commit().Error
+}