Add OnConflict UpdateAll support

callbacks/create.go

@@ -329,7 +329,8 @@ func ConvertToCreateValues(stmt *gorm.Statement) (values clause.Values) {
 		}
 	}
 
-	if stmt.UpdatingColumn {
+	if c, ok := stmt.Clauses["ON CONFLICT"]; ok {
+		if onConflict, _ := c.Expression.(clause.OnConflict); onConflict.UpdateAll {
 			if stmt.Schema != nil && len(values.Columns) > 1 {
 				columns := make([]string, 0, len(values.Columns)-1)
 				for _, column := range values.Columns {
@@ -348,9 +349,11 @@ func ConvertToCreateValues(stmt *gorm.Statement) (values clause.Values) {
 				for idx, field := range stmt.Schema.PrimaryFields {
 					onConflict.Columns[idx] = clause.Column{Name: field.DBName}
 				}
+
 				stmt.AddClause(onConflict)
 			}
 		}
+	}
 
 	return values
 }

clause/on_conflict.go

@@ -5,6 +5,7 @@ type OnConflict struct {
 	Where     Where
 	DoNothing bool
 	DoUpdates Set
+	UpdateAll bool
 }
 
 func (OnConflict) Name() string {

finisher_api.go

@@ -29,7 +29,9 @@ func (db *DB) Save(value interface{}) (tx *DB) {
 	reflectValue := reflect.Indirect(reflect.ValueOf(value))
 	switch reflectValue.Kind() {
 	case reflect.Slice, reflect.Array:
-		tx.Statement.UpdatingColumn = true
+		if _, ok := tx.Statement.Clauses["ON CONFLICT"]; !ok {
+			tx = tx.Clauses(clause.OnConflict{UpdateAll: true})
+		}
 		tx.callbacks.Create().Execute(tx)
 	case reflect.Struct:
 		if err := tx.Statement.Parse(value); err == nil && tx.Statement.Schema != nil {

tests/upsert_test.go

@@ -41,6 +41,16 @@ func TestUpsert(t *testing.T) {
 	} else if langs[0].Name != "upsert-new" {
 		t.Errorf("should update name on conflict, but got name %+v", langs[0].Name)
 	}
+
+	lang = Language{Code: "upsert", Name: "Upsert-Newname"}
+	if err := DB.Clauses(clause.OnConflict{UpdateAll: true}).Create(&lang).Error; err != nil {
+		t.Fatalf("failed to upsert, got %v", err)
+	}
+
+	var result Language
+	if err := DB.Find(&result, "code = ?", lang.Code).Error; err != nil || result.Name != lang.Name {
+		t.Fatalf("failed to upsert, got name %v", result.Name)
+	}
 }
 
 func TestUpsertSlice(t *testing.T) {