package model

import (
	"gorm.io/gorm"
	"hepa-calc-api/global"
	"time"
)

// QuestionClass 中间表-问题/分类
type QuestionClass struct {
	QuestionClassId int64 `gorm:"column:question_class_id;type:bigint(19);primary_key;comment:主键id" json:"question_class_id"`
	QuestionId      int64 `gorm:"column:question_id;type:bigint(19);comment:问题id;NOT NULL" json:"question_id"`
	ClassId         int64 `gorm:"column:class_id;type:bigint(19);comment:分类id;NOT NULL" json:"class_id"`
	Model
}

func (m *QuestionClass) TableName() string {
	return "question_class"
}

func (m *QuestionClass) BeforeCreate(tx *gorm.DB) error {
	if m.QuestionClassId == 0 {
		m.QuestionClassId = global.Snowflake.Generate().Int64()
	}

	m.CreatedAt = LocalTime(time.Now())
	tx.Statement.SetColumn("CreatedAt", m.CreatedAt)

	m.UpdatedAt = LocalTime(time.Now())
	tx.Statement.SetColumn("UpdatedAt", m.UpdatedAt)

	return nil
}