Fix create index

migrator/migrator.go

@@ -150,7 +150,7 @@ func (m Migrator) CreateTable(values ...interface{}) error {
 
 			for _, idx := range stmt.Schema.ParseIndexes() {
 				if m.CreateIndexAfterCreateTable {
-					tx.Migrator().CreateIndex(value, idx.Name)
+					defer tx.Migrator().CreateIndex(value, idx.Name)
 				} else {
 					createTableSQL += "INDEX ? ?,"
 					values = append(values, clause.Expr{SQL: idx.Name}, tx.Migrator().(BuildIndexOptionsInterface).BuildIndexOptions(idx.Fields, stmt))

schema/index.go

@@ -26,7 +26,7 @@ type IndexOption struct {
 func (schema *Schema) ParseIndexes() map[string]Index {
 	var indexes = map[string]Index{}
 
-	for _, field := range schema.FieldsByDBName {
+	for _, field := range schema.Fields {
 		if field.TagSettings["INDEX"] != "" || field.TagSettings["UNIQUE_INDEX"] != "" {
 			for _, index := range parseFieldIndexes(field) {
 				idx := indexes[index.Name]
@@ -66,6 +66,10 @@ func parseFieldIndexes(field *Field) (indexes []Index) {
 					length, _ = strconv.Atoi(settings["LENGTH"])
 				)
 
+				if idx == -1 {
+					idx = len(tag)
+				}
+
 				if idx != -1 {
 					name = tag[0:idx]
 				}

schema/index_test.go

@@ -16,6 +16,8 @@ type UserIndex struct {
 	Name5        int64  `gorm:"index:,class:FULLTEXT,comment:hello \\, world,where:age > 10"`
 	Name6        int64  `gorm:"index:profile,comment:hello \\, world,where:age > 10"`
 	Age          int64  `gorm:"index:profile,expression:ABS(age)"`
+	OID          int64  `gorm:"index:idx_id"`
+	MemberNumber string `gorm:"index:idx_id"`
 }
 
 func TestParseIndex(t *testing.T) {
@@ -64,6 +66,10 @@ func TestParseIndex(t *testing.T) {
 				Expression: "ABS(age)",
 			}},
 		},
+		"idx_id": {
+			Name:   "idx_id",
+			Fields: []schema.IndexOption{{}, {}},
+		},
 	}
 
 	indices := user.ParseIndexes()
@@ -71,7 +77,7 @@ func TestParseIndex(t *testing.T) {
 	for k, result := range results {
 		v, ok := indices[k]
 		if !ok {
-			t.Errorf("Failed to found index %v from parsed indices %+v", k, indices)
+			t.Fatalf("Failed to found index %v from parsed indices %+v", k, indices)
 		}
 
 		for _, name := range []string{"Name", "Class", "Type", "Where", "Comment"} {