Test UpdateColumn

callbacks/update.go

@@ -141,9 +141,6 @@ func ConvertToAssignments(stmt *gorm.Statement) (set clause.Set) {
 		for _, k := range keys {
 			if field := stmt.Schema.LookUpField(k); field != nil {
 				if v, ok := selectColumns[field.DBName]; (ok && v) || (!ok && !restricted) {
-					if field.AutoUpdateTime > 0 {
-						value[k] = time.Now()
-					}
 					set = append(set, clause.Assignment{Column: clause.Column{Name: field.DBName}, Value: value[k]})
 					assignValue(field, value[k])
 				}
@@ -152,6 +149,7 @@ func ConvertToAssignments(stmt *gorm.Statement) (set clause.Set) {
 			}
 		}
 
+		if !stmt.DisableUpdateTime {
 			for _, field := range stmt.Schema.FieldsByDBName {
 				if field.AutoUpdateTime > 0 && value[field.Name] == nil && value[field.DBName] == nil {
 					now := time.Now()
@@ -159,6 +157,7 @@ func ConvertToAssignments(stmt *gorm.Statement) (set clause.Set) {
 					assignValue(field, now)
 				}
 			}
+		}
 	default:
 		switch stmt.ReflectValue.Kind() {
 		case reflect.Struct:
@@ -167,10 +166,12 @@ func ConvertToAssignments(stmt *gorm.Statement) (set clause.Set) {
 				if !field.PrimaryKey || (!stmt.ReflectValue.CanAddr() || stmt.Dest != stmt.Model) {
 					if v, ok := selectColumns[field.DBName]; (ok && v) || (!ok && !restricted) {
 						value, isZero := field.ValueOf(stmt.ReflectValue)
+						if !stmt.DisableUpdateTime {
 							if field.AutoUpdateTime > 0 {
 								value = time.Now()
 								isZero = false
 							}
+						}
 
 						if ok || !isZero {
 							set = append(set, clause.Assignment{Column: clause.Column{Name: field.DBName}, Value: value})

finisher_api.go

@@ -207,6 +207,7 @@ func (db *DB) Updates(values interface{}) (tx *DB) {
 func (db *DB) UpdateColumn(column string, value interface{}) (tx *DB) {
 	tx = db.getInstance()
 	tx.Statement.Dest = map[string]interface{}{column: value}
+	tx.Statement.DisableUpdateTime = true
 	tx.callbacks.Update().Execute(tx)
 	return
 }
@@ -214,6 +215,7 @@ func (db *DB) UpdateColumn(column string, value interface{}) (tx *DB) {
 func (db *DB) UpdateColumns(values interface{}) (tx *DB) {
 	tx = db.getInstance()
 	tx.Statement.Dest = values
+	tx.Statement.DisableUpdateTime = true
 	tx.callbacks.Update().Execute(tx)
 	return
 }

statement.go

@@ -32,6 +32,7 @@ type Statement struct {
 	Schema               *schema.Schema
 	Context              context.Context
 	RaiseErrorOnNotFound bool
+	DisableUpdateTime    bool
 	SQL                  strings.Builder
 	Vars                 []interface{}
 	NamedVars            []sql.NamedArg

tests/update_test.go

@@ -159,3 +159,55 @@ func TestUpdates(t *testing.T) {
 	user3.Age += 100
 	AssertEqual(t, user4.UpdatedAt, user3.UpdatedAt)
 }
+
+func TestUpdateColumn(t *testing.T) {
+	var users = []*User{
+		GetUser("update_column_01", Config{}),
+		GetUser("update_column_02", Config{}),
+	}
+
+	DB.Create(&users)
+	lastUpdatedAt := users[1].UpdatedAt
+
+	// update with map
+	DB.Model(users[1]).UpdateColumns(map[string]interface{}{"name": "update_column_02_newname", "age": 100})
+	if users[1].Name != "update_column_02_newname" || users[1].Age != 100 {
+		t.Errorf("user 2 should be updated with update column")
+	}
+	AssertEqual(t, lastUpdatedAt.UnixNano(), users[1].UpdatedAt.UnixNano())
+
+	// user2 should not be updated
+	var user1, user2 User
+	DB.First(&user1, users[0].ID)
+	DB.First(&user2, users[1].ID)
+	CheckUser(t, user1, *users[0])
+	CheckUser(t, user2, *users[1])
+
+	DB.Model(users[1]).UpdateColumn("name", "update_column_02_newnew")
+	AssertEqual(t, lastUpdatedAt.UnixNano(), users[1].UpdatedAt.UnixNano())
+
+	if users[1].Name != "update_column_02_newnew" {
+		t.Errorf("user 2's name should be updated, but got %v", users[1].Name)
+	}
+
+	DB.Model(users[1]).UpdateColumn("age", gorm.Expr("age + 100 - 50"))
+	var user3 User
+	DB.First(&user3, users[1].ID)
+
+	users[1].Age += 50
+	CheckUser(t, user3, *users[1])
+
+	// update with struct
+	DB.Model(users[1]).UpdateColumns(User{Name: "update_column_02_newnew2", Age: 200})
+	if users[1].Name != "update_column_02_newnew2" || users[1].Age != 200 {
+		t.Errorf("user 2 should be updated with update column")
+	}
+	AssertEqual(t, lastUpdatedAt.UnixNano(), users[1].UpdatedAt.UnixNano())
+
+	// user2 should not be updated
+	var user5, user6 User
+	DB.First(&user5, users[0].ID)
+	DB.First(&user6, users[1].ID)
+	CheckUser(t, user5, *users[0])
+	CheckUser(t, user6, *users[1])
+}