videoplayer/dao/video.go

package dao

import (
	"fmt"
	"gorm.io/gorm"
)

type Video struct {
	gorm.Model
	CameraID   int    `gorm:"column:camera_id"`
	VideoPath  string `gorm:"column:video_path"`
	VideoName  string `gorm:"column:video_name"`
	AuthId     int    `gorm:"column:auth_id"`
	Human      int    `gorm:"column:human"`
	IsDelete   int    `gorm:"column:isdelete"`
	CreateTime string `gorm:"column:create_time"`
	EndTime    string `gorm:"column:end_time"`
	DeleteTime string `gorm:"column:delete_time"`
	FileSize   int    `gorm:"column:file_size"`
}

func FindWillDelVideoList(id int) []Video {
	var videos []Video
	DB.Raw("select * from videos where auth_id = ? and delete_time<=now() and isdelete=0", id).Scan(&videos)
	return videos
}

func CreateVideo(videoPath, videoName string, cameraID, authID, human, isDelete int, createTime, endTime, deleteTime string, fileSize int) uint {
	video := Video{VideoPath: videoPath, VideoName: videoName, CameraID: cameraID, AuthId: authID, Human: human, IsDelete: isDelete, CreateTime: createTime, EndTime: endTime, DeleteTime: deleteTime, FileSize: fileSize}
	res := DB.Create(&video)
	if res.Error != nil {
		return 0
	}
	if deleteTime == "" {
		DB.Exec("update videos set delete_time= DATE_ADD(NOW(), INTERVAL 20 DAY) where id=?", video.ID) //delete_time= DATE_ADD(NOW(), INTERVAL 20 DAY)
	}
	return video.ID
}

// 文件已删除
func DeleteVideoByID(id, user int) int {
	res := DB.Exec("update videos set deleted_at = now(),isdelete=1 where id=? and auth_id=?", id, user) //delete_time= DATE_ADD(NOW(), INTERVAL 20 DAY)
	if res.Error != nil {
		fmt.Println("dao DeleteVideoByID:", res.Error)
		return 0
	}
	return id
}

// 文件未删除时逻辑删除
func LogicDeleteVideoByID(id, user int) int {
	res := DB.Exec("update videos set deleted_at=now(),delete_time=now() where id=? and auth_id=?", id, user) //delete_time= DATE_ADD(NOW(), INTERVAL 20 DAY)
	if res.Error != nil {
		fmt.Println("dao LogicDeleteVideoByID:", res.Error)
		return 0
	}
	return id
}

// 回滚视频输出-逻辑删除，若文件已删除则不可回滚
func RollbackVideoByID(id, user int) int {
	res := DB.Exec("update videos set deleted_at=null where id=? and auth_id=? and isdelete=0", id, user) //isdelete=0说明文件未删除
	if res.Error != nil {
		fmt.Println("dao RollbackVideoByID:", res.Error)
		return 0
	}
	return id
}

func UpdateVideo(videoPath, videoName string, cameraID, videoID, authID, human, isDelete int, createTime, endTime string, fileSize int) bool {
	res := DB.Model(&Video{}).Where("id = ? and auth_id = ?", videoID, authID).Updates(Video{VideoPath: videoPath, VideoName: videoName, CameraID: cameraID, AuthId: authID, Human: human, IsDelete: isDelete, CreateTime: createTime, EndTime: endTime, FileSize: fileSize})
	if res.Error != nil {
		return false
	}
	res = DB.Exec("update videos set delete_time= DATE_ADD(NOW(), INTERVAL 20 DAY) where id=? and auth_id=?", videoID, authID) //delete_time= DATE_ADD(NOW(), INTERVAL 20 DAY)
	if res.Error != nil {
		return false
	}
	return true
}

func FindVideoByID(id, auth_id int) Video {
	var video Video
	DB.Where("id = ? and auth_id = ?", id, auth_id).Where("isdelete = ?", 0).First(&video)
	return video
}

// 根据用户id查找视频列表,返回最新30条
func FindVideoListsByAuthID(auth_id int) []Video {
	var videos []Video
	DB.Where("auth_id = ? and isdelete =? ", auth_id, 0).Order("create_time DESC").Limit(30).Find(&videos)
	return videos
}

func FindVideoListByTime(auth_id int, startTime, endTime string) []Video {
	var videos []Video
	DB.Where("auth_id = ?", auth_id).Where("isdelete=0").Where("create_time > ? and create_time < ? and deleted_at != null", startTime, endTime).Find(&videos)
	return videos
}

// id 为视频id，auth_id为用户id，day为延长天数，返回修改的行数
func DelayVideo(id, auth_id, day int) int {
	res := DB.Exec("update videos set delete_time = date_add(delete_time, interval ? day) where id = ? and auth_id = ? and isdelete=0", day, id, auth_id)
	if res.Error != nil {
		return 0
	}
	return int(res.RowsAffected)
}

// id 为用户id，day为延长天数，返回修改的行数
func DelayAllVideo(id, day int) int {
	res := DB.Exec("update videos set delete_time = date_add(delete_time, interval ? day) where auth_id = ? and isdelete = 0", day, id)
	if res.Error != nil {
		return 0
	}
	return int(res.RowsAffected)
}

func QuashOneDelay(id, user_id int, day int) int {
	res := DB.Exec("update videos set delete_time = date_sub(delete_time, interval ? day) where id = ? and auth_id = ? and isdelete=0", day, id, user_id)
	if res.Error != nil {
		return 0
	}
	return int(res.RowsAffected)
}

func QuashAllDelay(user_id int, day int) int {
	res := DB.Exec("update videos set delete_time = date_sub(delete_time, interval ? day) where auth_id = ? and isdelete=0", day, user_id)
	if res.Error != nil {
		return 0
	}
	return int(res.RowsAffected)
}

// 获取视频列表分页
func GetVideoListByPage(auth_id, page, pageSize int) []Video {
	var videos []Video
	DB.Where("auth_id = ? and isdelete = ?", auth_id, 0).Order("created_at DESC").Offset((page - 1) * pageSize).Limit(pageSize).Find(&videos) //Offset((page - 1) * pageSize).Limit(pageSize),分页,page从1开始,pageSize每页多少条,Offset是偏移量,Limit是限制条数
	return videos
}