增加 记录问答题库打开次数

api/dao/QuestionQa.go

@@ -188,3 +188,21 @@ func (r *QuestionQaDao) GetQuestionQaPageSearch(req requests.GetQuestionQaPage,
 	}
 	return m, totalRecords, nil
 }
+
+// Inc 自增
+func (r *QuestionQaDao) Inc(tx *gorm.DB, qaId int64, field string, numeral int) error {
+	err := tx.Model(&model.QuestionQa{}).Where("qa_id = ?", qaId).UpdateColumn(field, gorm.Expr(field+" + ?", numeral)).Error
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// Dec 自减
+func (r *QuestionQaDao) Dec(tx *gorm.DB, qaId int64, field string, numeral int) error {
+	err := tx.Model(&model.QuestionQa{}).Where("qa_id = ?", qaId).UpdateColumn(field, gorm.Expr(field+" - ?", numeral)).Error
+	if err != nil {
+		return err
+	}
+	return nil
+}