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- package test
- import (
- "database/sql"
- "fmt"
- "gorm.io/driver/mysql"
- "gorm.io/gorm"
- "strings"
- "time"
- )
- var db *gorm.DB
- var sqlDB *sql.DB
- type WarningDB struct {
- Id int64 `gorm:"column:ID;type:bigint;primaryKey"`
- T_pid int32 `gorm:"column:t_pid;index:merge"` // Account.Company 绑定公司
- T_tp int `gorm:"column:t_tp;index:merge"` // 报警类型 ->WarningList
- T_sn string `gorm:"column:t_sn;index:tsn;size:256;"` // 设备序列号
- T_D_name string `gorm:"column:t__d_name;size:256;"` // 设备名称
- T_id int32 `gorm:"column:t_id;"` // 传感器 ID
- T_DS_name string `gorm:"column:t__d_s_name;size:256;"` // 传感器名称
- T_Remark string `gorm:"column:t__remark;type:longtext;"` // 采集内容
- T_Ut time.Time `gorm:"column:t__ut;type:datetime;"` // 采集时间
- T_fUt time.Time `gorm:"column:t_f_ut;type:datetime;"` // 首次采集时间
- T_Text string `gorm:"column:t__text;type:longtext;"` // 处理备注
- T_Log string `gorm:"column:t__log;type:longtext;"` // 通知日志
- T_Msid int64 `gorm:"column:t__msid;"` // 消息ID
- T_State int `gorm:"column:t__state;size:2;default:2;index:merge"` // 0 删除 1 不处理 2 已处理 3 未处理
- CreateTime time.Time `gorm:"column:create_time;type:datetime;autoUpdateTime"` //auto_now_add 第一次保存时才设置时间
- UpdateTime time.Time `gorm:"column:update_time;type:datetime;autoCreateTime"` //auto_now 每次 model 保存时都会对时间自动更新
- }
- var MysqlServer_UrlPort = "127.0.0.1:40306"
- var MysqlServer_Database = "cold"
- var MysqlServer_Username = "cold"
- var MysqlServer_Password = "yjwyEckZS7rE5H!"
- func init() {
- // 连接数据库
- var err error
- dsn := MysqlServer_Username + ":" + MysqlServer_Password + "@tcp(" + MysqlServer_UrlPort + ")/" + MysqlServer_Database + "?charset=utf8mb4&loc=Local&parseTime=True"
- db, err = gorm.Open(mysql.Open(dsn), &gorm.Config{})
- if err != nil {
- fmt.Println(err)
- }
- sqlDB, err = db.DB()
- // SetMaxIdleConns 设置空闲连接池中的最大连接数。
- sqlDB.SetMaxIdleConns(1)
- // SetMaxOpenConns 设置数据库连接最大打开数。
- sqlDB.SetMaxOpenConns(10)
- // SetConnMaxLifetime 设置可重用连接的最长时间
- sqlDB.SetConnMaxLifetime(time.Hour)
- //db.AutoMigrate(&DeviceWarning{})
- //db.SetLogger(log.New(logs.LogxOrm, "\r\nWarningBack:", 0))
- fmt.Println("db init")
- }
- /*
- time_a : 开始时间 "2024-01-24 08:21:40"
- time_b : 结束时间 "2024-03-24 08:21:40"
- WHERE_t_pid : 公司ID > 0
- WHERE_t_tp : 报警类型 > 0
- WHERE_t__state : 状态 -1 无限制 0 删除 1 不处理 2 已处理 3 未处理
- WHERE_t_sn : 设备序列号
- PageIndex : 页码值
- PageSize : 每页多少
- */
- func Handy(time_a, time_b string, WHERE_t_pid int, WHERE_t_tp int, WHERE_t__state int, WHERE_t_sn string, PageIndex int, PageSize int) ([]WarningDB, int) {
- var offset int // 数据起点
- if PageIndex <= 1 {
- offset = 0
- } else {
- offset = (PageIndex - 1) * PageSize
- }
- var TABLE = "warning_"
- monthsArray := generateMonthArray(time_a, time_b)
- var Warning_List []WarningDB
- var Count_List []int
- var Count_Num int // 累积数量
- for _, v := range monthsArray {
- var count int64
- var countoffset int // 当前数据起点
- db.Table(TABLE+v).Where("t_tp = ?", 110).Count(&count)
- Count_List = append(Count_List, int(count))
- fmt.Println("TABLE:", TABLE+v, count)
- countoffset = offset - Count_Num // 当前数据起点
- if countoffset < 0 {
- countoffset = 0
- }
- Count_Num += int(count)
- Limit := PageSize - len(Warning_List) // 还缺多少数量
- if offset <= Count_Num && Limit > 0 {
- var warninglist []WarningDB
- dbW := db.Table(TABLE + v)
- if WHERE_t_pid > 0 {
- dbW.Where("t_tp = ? ", WHERE_t_pid)
- }
- if WHERE_t_tp > 0 {
- dbW.Where("t_pid = ? ", WHERE_t_pid)
- }
- if WHERE_t__state != -1 {
- dbW.Where("t__state = ? ", WHERE_t__state)
- }
- if len(WHERE_t_sn) > 0 {
- dbW.Where("t__state LIKE ? ", WHERE_t_sn)
- }
- dbW.Order("t__ut").Offset(countoffset).Limit(Limit).Find(&warninglist)
- Warning_List = append(Warning_List, warninglist...)
- }
- }
- return Warning_List, Count_Num
- }
- func (t *WarningDB) Create(TableName string) {
- CreateSQL:
- result := db.Table(TableName).Create(t) // 插入数据
- if result.Error != nil {
- if strings.Compare(result.Error.Error(), "doesn't exist") != 0 {
- db.Table(TableName).AutoMigrate(&WarningDB{}) // 建表
- goto CreateSQL // 返回 重新插入
- }
- }
- }
- func generateMonthArray(startDateStr string, endDateStr string) []string {
- startDate, _ := time.Parse("2006-01-02 15:04:05", startDateStr)
- endDate, _ := time.Parse("2006-01-02 15:04:05", endDateStr)
- monthsArray := []string{}
- for startDate.Before(endDate) || startDate.Equal(endDate) {
- monthsArray = append(monthsArray, fmt.Sprintf("%d_%02d", startDate.Year(), startDate.Month()))
- startDate = startDate.AddDate(0, 1, 0) // Add one month
- }
- return monthsArray
- }
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