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DryRun for migrator (#5689) 

* DryRun for migrator

* Update migrator.go

* Update migrator.go

Co-authored-by: Jinzhu <wosmvp@gmail.com>
This commit is contained in:
Defoo Li 2022-12-24 12:14:23 +08:00 committed by GitHub
parent bbd2bbe521
commit 775fa70af5
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 29 additions and 12 deletions
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41
migrator/migrator.go
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@ -8,9 +8,11 @@ import (
"reflect"
"regexp"
"strings"
"time"
"gorm.io/gorm"
"gorm.io/gorm/clause"
"gorm.io/gorm/logger"
"gorm.io/gorm/schema"
)
@ -30,6 +32,16 @@ type Config struct {
gorm.Dialector
}
type printSQLLogger struct {
logger.Interface
}
func (l *printSQLLogger) Trace(ctx context.Context, begin time.Time, fc func() (sql string, rowsAffected int64), err error) {
sql, _ := fc()
fmt.Println(sql + ";")
l.Interface.Trace(ctx, begin, fc, err)
}
// GormDataTypeInterface gorm data type interface
type GormDataTypeInterface interface {
GormDBDataType(*gorm.DB, *schema.Field) string
@ -92,14 +104,19 @@ func (m Migrator) FullDataTypeOf(field *schema.Field) (expr clause.Expr) {
// AutoMigrate auto migrate values
func (m Migrator) AutoMigrate(values ...interface{}) error {
for _, value := range m.ReorderModels(values, true) {
tx := m.DB.Session(&gorm.Session{})
if !tx.Migrator().HasTable(value) {
if err := tx.Migrator().CreateTable(value); err != nil {
queryTx := m.DB.Session(&gorm.Session{})
execTx := queryTx
if m.DB.DryRun {
queryTx.DryRun = false
execTx = m.DB.Session(&gorm.Session{Logger: &printSQLLogger{Interface: m.DB.Logger}})
}
if !queryTx.Migrator().HasTable(value) {
if err := execTx.Migrator().CreateTable(value); err != nil {
return err
}
} else {
if err := m.RunWithValue(value, func(stmt *gorm.Statement) (errr error) {
columnTypes, err := m.DB.Migrator().ColumnTypes(value)
columnTypes, err := queryTx.Migrator().ColumnTypes(value)
if err != nil {
return err
}
@ -117,10 +134,10 @@ func (m Migrator) AutoMigrate(values ...interface{}) error {
if foundColumn == nil {
// not found, add column
if err := tx.Migrator().AddColumn(value, dbName); err != nil {
if err := execTx.Migrator().AddColumn(value, dbName); err != nil {
return err
}
} else if err := m.DB.Migrator().MigrateColumn(value, field, foundColumn); err != nil {
} else if err := execTx.Migrator().MigrateColumn(value, field, foundColumn); err != nil {
// found, smart migrate
return err
}
@ -129,8 +146,8 @@ func (m Migrator) AutoMigrate(values ...interface{}) error {
for _, rel := range stmt.Schema.Relationships.Relations {
if !m.DB.Config.DisableForeignKeyConstraintWhenMigrating {
if constraint := rel.ParseConstraint(); constraint != nil &&
constraint.Schema == stmt.Schema && !tx.Migrator().HasConstraint(value, constraint.Name) {
if err := tx.Migrator().CreateConstraint(value, constraint.Name); err != nil {
constraint.Schema == stmt.Schema && !queryTx.Migrator().HasConstraint(value, constraint.Name) {
if err := execTx.Migrator().CreateConstraint(value, constraint.Name); err != nil {
return err
}
}
@ -138,16 +155,16 @@ func (m Migrator) AutoMigrate(values ...interface{}) error {
}
for _, chk := range stmt.Schema.ParseCheckConstraints() {
if !tx.Migrator().HasConstraint(value, chk.Name) {
if err := tx.Migrator().CreateConstraint(value, chk.Name); err != nil {
if !queryTx.Migrator().HasConstraint(value, chk.Name) {
if err := execTx.Migrator().CreateConstraint(value, chk.Name); err != nil {
return err
}
}
}
for _, idx := range stmt.Schema.ParseIndexes() {
if !tx.Migrator().HasIndex(value, idx.Name) {
if err := tx.Migrator().CreateIndex(value, idx.Name); err != nil {
if !queryTx.Migrator().HasIndex(value, idx.Name) {
if err := execTx.Migrator().CreateIndex(value, idx.Name); err != nil {
return err
}
}