增加websocket支持

vendor/gorm.io/gorm/finisher_api.go

@@ -376,12 +376,8 @@ func (db *DB) FirstOrCreate(dest interface{}, conds ...interface{}) (tx *DB) {
 	} else if len(db.Statement.assigns) > 0 {
 		exprs := tx.Statement.BuildCondition(db.Statement.assigns[0], db.Statement.assigns[1:]...)
 		assigns := map[string]interface{}{}
-		for i := 0; i < len(exprs); i++ {
-			expr := exprs[i]
-
-			if eq, ok := expr.(clause.AndConditions); ok {
-				exprs = append(exprs, eq.Exprs...)
-			} else if eq, ok := expr.(clause.Eq); ok {
+		for _, expr := range exprs {
+			if eq, ok := expr.(clause.Eq); ok {
 				switch column := eq.Column.(type) {
 				case string:
 					assigns[column] = eq.Value