hotime/db/db.go
2021-05-25 19:53:34 +08:00

965 lines
19 KiB
Go
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

package db
import (
"../cache"
. "../common"
"database/sql"
"encoding/json"
"errors"
_ "github.com/go-sql-driver/mysql"
_ "github.com/mattn/go-sqlite3"
"os"
"reflect"
"strings"
)
type HoTimeDB struct {
*sql.DB
ContextBase
cache.CacheIns
Type string
DBCached bool
LastQuery string
LastData []interface{}
ConnectFunc func(err ...*Error) (*sql.DB, *sql.DB)
LastErr *Error
limit Slice
*sql.Tx //事务对象
SlaveDB *sql.DB
}
// SetConnect 设置数据库配置连接
func (that *HoTimeDB) SetConnect(connect func(err ...*Error) (master, slave *sql.DB), err ...*Error) {
that.ConnectFunc = connect
_ = that.InitDb(err...)
}
// GetType 设置数据库配置连接
func (that *HoTimeDB) GetType() string {
return that.Type
}
// Action 事务如果action返回true则执行成功false则回滚
func (that *HoTimeDB) Action(action func(db HoTimeDB) bool) bool {
db := HoTimeDB{DB: that.DB, CacheIns: that.CacheIns, DBCached: that.DBCached}
tx, err := db.Begin()
if err != nil {
that.LastErr.SetError(err)
return false
}
db.Tx = tx
result := action(db)
if !result {
err = db.Tx.Rollback()
if err != nil {
that.LastErr.SetError(err)
return false
}
return result
}
err = db.Tx.Commit()
if err != nil {
that.LastErr.SetError(err)
return false
}
return result
}
func (that *HoTimeDB) InitDb(err ...*Error) *Error {
if len(err) != 0 {
that.LastErr = err[0]
}
that.DB, that.SlaveDB = that.ConnectFunc(that.LastErr)
if that.DB == nil {
return that.LastErr
}
e := that.DB.Ping()
that.LastErr.SetError(e)
if that.SlaveDB != nil {
e := that.SlaveDB.Ping()
that.LastErr.SetError(e)
}
return that.LastErr
}
func (that *HoTimeDB) Page(page, pageRow int) *HoTimeDB {
page = (page - 1) * pageRow
if page < 0 {
page = 1
}
that.limit = Slice{page, pageRow}
return that
}
func (that *HoTimeDB) PageSelect(table string, qu ...interface{}) []Map {
if len(qu) == 1 {
qu = append(qu, Map{"LIMIT": that.limit})
}
if len(qu) == 2 {
temp := qu[1].(Map)
temp["LIMIT"] = that.limit
qu[1] = temp
}
if len(qu) == 3 {
temp := qu[2].(Map)
temp["LIMIT"] = that.limit
qu[2] = temp
}
//fmt.Println(qu)
data := that.Select(table, qu...)
return data
}
// Row 数据库数据解析
func (that *HoTimeDB) Row(resl *sql.Rows) []Map {
dest := make([]Map, 0)
strs, _ := resl.Columns()
for i := 0; resl.Next(); i++ {
lis := make(Map, 0)
a := make([]interface{}, len(strs))
b := make([]interface{}, len(a))
for j := 0; j < len(a); j++ {
b[j] = &a[j]
}
err := resl.Scan(b...)
if err != nil {
that.LastErr.SetError(err)
return nil
}
for j := 0; j < len(a); j++ {
if a[j] != nil && reflect.ValueOf(a[j]).Type().String() == "[]uint8" {
lis[strs[j]] = string(a[j].([]byte))
} else {
lis[strs[j]] = a[j]
}
}
//防止int被误读为float64
jlis, e := json.Marshal(lis)
if e != nil {
that.LastErr.SetError(e)
} else {
lis.JsonToMap(string(jlis), that.LastErr)
}
dest = append(dest, lis)
}
return dest
}
//
////code=0,1,2 0 backup all,1 backup data,2 backup ddl
//func (this *HoTimeDB) Backup(path string, code int) {
// var cmd *exec.Cmd
// switch code {
// case 0:cmd= exec.Command("mysqldump","-h"+ObjToStr(Config["dbHost"]), "-P"+ObjToStr(Config["dbPort"]),"-u"+ObjToStr(Config["dbUser"]), "-p"+ObjToStr(Config["dbPwd"]),ObjToStr(Config["dbName"]))
// case 1:cmd= exec.Command("mysqldump","-h"+ObjToStr(Config["dbHost"]), "-P"+ObjToStr(Config["dbPort"]),"-u"+ObjToStr(Config["dbUser"]), "-p"+ObjToStr(Config["dbPwd"]), ObjToStr(Config["dbName"]))
// case 2:cmd= exec.Command("mysqldump","--no-data","-h"+ObjToStr(Config["dbHost"]), "-P"+ObjToStr(Config["dbPort"]),"-u"+ObjToStr(Config["dbUser"]), "-p"+ObjToStr(Config["dbPwd"]),ObjToStr(Config["dbName"]))
// }
//
//
//
// stdout, err := cmd.StdoutPipe()
// if err != nil {
// log.Println(err)
// }
//
// if err := cmd.Start(); err != nil {
// log.Println(err)
// }
//
// bytes, err := ioutil.ReadAll(stdout)
// if err != nil {
// log.Println(err)
// }
// err = ioutil.WriteFile(path, bytes, 0644)
// if err != nil {
// panic(err)
// }
// return ;
// //
// //db := ``
// //fmt.Println(db)
// //
// //tables := this.Query("show tables")
// //lth := len(tables)
// //if lth == 0 {
// // return
// //}
// //for k, _ := range tables[0] {
// // db = Substr(k, 10, len(k))
// //}
// //
// //fd, _ := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
// //fd.Write([]byte("/*datetime " + time.Now().Format("2006-01-02 15:04:05") + " */ \r\n"))
// //fd.Close()
// //
// //for i := 0; i < lth; i++ {
// // tt := tables[i]["Tables_in_"+db].(string)
// // this.backupSave(path, tt, code)
// // debug.FreeOSMemory()
// //}
//
//}
func (that *HoTimeDB) backupSave(path string, tt string, code int) {
fd, _ := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0644)
defer fd.Close()
str := "\r\n"
if code == 0 || code == 2 {
str += that.backupDdl(tt)
}
if code == 0 || code == 1 {
str += "insert into `" + tt + "`\r\n\r\n("
str += that.backupCol(tt)
}
_, _ = fd.Write([]byte(str))
}
func (that *HoTimeDB) backupDdl(tt string) string {
data := that.Query("show create table " + tt)
if len(data) == 0 {
return ""
}
return ObjToStr(data[0]["Create Table"]) + ";\r\n\r\n"
}
func (that *HoTimeDB) backupCol(tt string) string {
str := ""
data := that.Select(tt, "*")
lthData := len(data)
if lthData == 0 {
return str
}
lthCol := len(data[0])
col := make([]string, lthCol)
tempLthData := 0
for k := range data[0] {
if tempLthData == lthCol-1 {
str += "`" + k + "`)"
} else {
str += "`" + k + "`,"
}
col[tempLthData] = k
tempLthData++
}
str += " values"
for j := 0; j < lthData; j++ {
for m := 0; m < lthCol; m++ {
if m == 0 {
str += "("
}
v := "NULL"
if data[j][col[m]] != nil {
v = "'" + strings.Replace(ObjToStr(data[j][col[m]]), "'", `\'`, -1) + "'"
}
if m == lthCol-1 {
str += v + ")"
} else {
str += v + ","
}
}
if j == lthData-1 {
str += ";\r\n\r\n"
} else {
str += ",\r\n\r\n"
}
}
return str
}
func (that *HoTimeDB) md5(query string, args ...interface{}) string {
strByte, _ := json.Marshal(args)
str := Md5(query + ":" + string(strByte))
return str
}
func (that *HoTimeDB) Query(query string, args ...interface{}) []Map {
//fmt.Println(query)
var err error
var resl *sql.Rows
that.LastQuery = query
that.LastData = args
//主从数据库切换只有select语句有从数据库
db := that.DB
if that.SlaveDB != nil {
db = that.SlaveDB
}
if db == nil {
err = errors.New("没有初始化数据库")
that.LastErr.SetError(err)
return nil
}
if that.Tx != nil {
resl, err = that.Tx.Query(query, args...)
} else {
resl, err = db.Query(query, args...)
}
that.LastErr.SetError(err)
if err != nil {
if err = db.Ping(); err != nil {
that.LastErr.SetError(err)
_ = that.InitDb()
if that.LastErr.GetError() != nil {
return nil
}
return that.Query(query, args...)
}
return nil
}
return that.Row(resl)
}
func (that *HoTimeDB) Exec(query string, args ...interface{}) (sql.Result, *Error) {
that.LastQuery = query
that.LastData = args
var e error
var resl sql.Result
if that.DB == nil {
err := errors.New("没有初始化数据库")
that.LastErr.SetError(err)
return nil, that.LastErr
}
if that.Tx != nil {
resl, e = that.Tx.Exec(query, args...)
} else {
resl, e = that.DB.Exec(query, args...)
}
that.LastErr.SetError(e)
//判断是否连接断开了
if e != nil {
if e = that.DB.Ping(); e != nil {
that.LastErr.SetError(e)
_ = that.InitDb()
if that.LastErr.GetError() != nil {
return resl, that.LastErr
}
return that.Exec(query, args...)
}
}
return resl, that.LastErr
}
//func (this *HoTimeDB)copy(data []Map)[]Map{
// if data==nil{
// return nil
// }
//
// lth:=len(data)
//
// res:=make([]Map,lth)
//
//
// for i:=0;i<lth;i++{
//
// res[i]=DeepCopy(data[i]).(Map)
// }
//
// return res
//
//}
func (that *HoTimeDB) Select(table string, qu ...interface{}) []Map {
query := "SELECT"
where := Map{}
qs := make([]interface{}, 0)
intQs, intWhere := 0, 1
join := false
if len(qu) == 3 {
intQs = 1
intWhere = 2
join = true
}
if len(qu) > 0 {
if reflect.ValueOf(qu[intQs]).Type().String() == "string" {
query += " " + qu[intQs].(string)
} else {
for i := 0; i < len(qu[intQs].(Slice)); i++ {
k := qu[intQs].(Slice)[i].(string)
if strings.Contains(k, " AS ") {
query += " " + k + " "
} else {
query += " `" + k + "` "
}
if i+1 != len(qu[intQs].(Slice)) {
query = query + ", "
}
}
}
} else {
query += " *"
}
query += " FROM " + table
if join {
for k, v := range qu[0].(Map) {
switch Substr(k, 0, 3) {
case "[>]":
query += " LEFT JOIN " + Substr(k, 3, len(k)-3) + " ON " + v.(string)
case "[<]":
query += " RIGHT JOIN " + Substr(k, 3, len(k)-3) + " ON " + v.(string)
}
switch Substr(k, 0, 4) {
case "[<>]":
query += " FULL JOIN " + Substr(k, 4, len(k)-4) + " ON " + v.(string)
case "[><]":
query += " INNER JOIN " + Substr(k, 4, len(k)-4) + " ON " + v.(string)
}
}
}
if len(qu) > 1 {
where = qu[intWhere].(Map)
}
temp, resWhere := that.where(where)
query += temp
qs = append(qs, resWhere...)
md5 := that.md5(query, qs...)
if that.DBCached && that.CacheIns != nil {
//如果缓存有则从缓存取
cacheData := that.Cache(table + ":" + md5)
if cacheData.Data != nil {
return cacheData.ToMapArray()
}
}
//无缓存则数据库取
res := that.Query(query, qs...)
if res == nil {
res = []Map{}
}
//缓存
if that.DBCached && that.CacheIns != nil {
_ = that.Cache(table+":"+md5, res)
}
return res
}
func (that *HoTimeDB) Get(table string, qu ...interface{}) Map {
//fmt.Println(qu)
if len(qu) == 1 {
qu = append(qu, Map{"LIMIT": 1})
}
if len(qu) == 2 {
temp := qu[1].(Map)
temp["LIMIT"] = 1
qu[1] = temp
}
if len(qu) == 3 {
temp := qu[2].(Map)
temp["LIMIT"] = 1
qu[2] = temp
}
//fmt.Println(qu)
data := that.Select(table, qu...)
if len(data) == 0 {
return nil
}
return data[0]
}
// Count 计数
func (that *HoTimeDB) Count(table string, qu ...interface{}) int {
var req = []interface{}{}
if len(qu) == 2 {
req = append(req, qu[0])
req = append(req, "COUNT(*)")
req = append(req, qu[1])
} else {
req = append(req, "COUNT(*)")
req = append(req, qu...)
}
//req=append(req,qu...)
data := that.Select(table, req...)
//fmt.Println(data)
if len(data) == 0 {
return 0
}
//res,_:=StrToInt(data[0]["COUNT(*)"].(string))
res := ObjToStr(data[0]["COUNT(*)"])
count, _ := StrToInt(res)
return count
}
var condition = []string{"AND", "OR"}
var vcond = []string{"GROUP", "ORDER", "LIMIT"}
//where语句解析
func (that *HoTimeDB) where(data Map) (string, []interface{}) {
where := ""
res := make([]interface{}, 0)
//AND OR判断
for k, v := range data {
x := 0
for i := 0; i < len(condition); i++ {
if condition[i] == k {
tw, ts := that.cond(k, v.(Map))
where += tw
res = append(res, ts...)
break
}
x++
}
y := 0
for j := 0; j < len(vcond); j++ {
if vcond[j] == k {
break
}
y++
}
if x == len(condition) && y == len(vcond) {
tv, vv := that.varCond(k, v)
where += tv
res = append(res, vv...)
}
}
if len(where) != 0 {
where = " WHERE " + where
}
//特殊字符
for j := 0; j < len(vcond); j++ {
for k, v := range data {
if vcond[j] == k {
if k == "ORDER" {
where += " " + k + " BY "
//fmt.Println(reflect.ValueOf(v).Type())
//break
} else if k == "GROUP" {
where += " " + k + " BY "
} else {
where += " " + k
}
if reflect.ValueOf(v).Type().String() == "hotime.Slice" {
for i := 0; i < len(v.(Slice)); i++ {
where += " " + ObjToStr(v.(Slice)[i])
if len(v.(Slice)) != i+1 {
where += ","
}
}
} else {
//fmt.Println(v)
where += " " + ObjToStr(v)
}
break
}
}
}
return where, res
}
func (that *HoTimeDB) varCond(k string, v interface{}) (string, []interface{}) {
where := ""
res := make([]interface{}, 0)
length := len(k)
if length > 4 {
def := false
switch Substr(k, length-3, 3) {
case "[>]":
k = strings.Replace(k, "[>]", "", -1)
where += "`" + k + "`>? "
res = append(res, v)
case "[<]":
k = strings.Replace(k, "[<]", "", -1)
where += "`" + k + "`<? "
res = append(res, v)
case "[!]":
k = strings.Replace(k, "[!]", "", -1)
where, res = that.notIn(k, v, where, res)
case "[#]":
k = strings.Replace(k, "[#]", "", -1)
where += " " + k + "=" + ObjToStr(v)
case "[#!]":
k = strings.Replace(k, "[#!]", "", -1)
where += " " + k + "!=" + ObjToStr(v)
case "[!#]":
k = strings.Replace(k, "[!#]", "", -1)
where += " " + k + "!=" + ObjToStr(v)
case "[~]":
k = strings.Replace(k, "[~]", "", -1)
where += "`" + k + "` LIKE ? "
v = "%" + ObjToStr(v) + "%"
res = append(res, v)
case "[!~]": //左边任意
k = strings.Replace(k, "[~]", "", -1)
where += "`" + k + "` LIKE ? "
v = "%" + ObjToStr(v)
res = append(res, v)
case "[~!]": //右边任意
k = strings.Replace(k, "[~]", "", -1)
where += "`" + k + "` LIKE ? "
v = ObjToStr(v) + "%"
res = append(res, v)
case "[~~]": //手动任意
k = strings.Replace(k, "[~]", "", -1)
where += "`" + k + "` LIKE ? "
//v = ObjToStr(v)
res = append(res, v)
default:
def = true
}
if def {
switch Substr(k, length-4, 4) {
case "[>=]":
k = strings.Replace(k, "[>=]", "", -1)
where += "`" + k + "`>=? "
res = append(res, v)
case "[<=]":
k = strings.Replace(k, "[<=]", "", -1)
where += "`" + k + "`<=? "
res = append(res, v)
case "[><]":
k = strings.Replace(k, "[><]", "", -1)
where += "`" + k + "` NOT BETWEEN ? AND ? "
res = append(res, v.(Slice)[0])
res = append(res, v.(Slice)[1])
case "[<>]":
k = strings.Replace(k, "[<>]", "", -1)
where += "`" + k + "` BETWEEN ? AND ? "
res = append(res, v.(Slice)[0])
res = append(res, v.(Slice)[1])
default:
if reflect.ValueOf(v).Type().String() == "hotime.Slice" {
where += "`" + k + "` IN ("
res = append(res, v.(Slice)...)
if len(v.(Slice)) == 0 {
where += ") "
} else {
for i := 0; i < len(v.(Slice)); i++ {
if i+1 != len(v.(Slice)) {
where += "?,"
} else {
where += "?) "
}
//res=append(res,(v.(Slice))[i])
}
}
} else {
where += "`" + k + "`=? "
res = append(res, v)
}
}
}
} else if k == "[#]" {
k = strings.Replace(k, "[#]", "", -1)
where += " " + ObjToStr(v) + " "
} else {
//fmt.Println(reflect.ValueOf(v).Type().String())
if v == nil {
where += "`" + k + "` IS NULL"
} else if reflect.ValueOf(v).Type().String() == "hotime.Slice" {
//fmt.Println(v)
where += "`" + k + "` IN ("
res = append(res, v.(Slice)...)
for i := 0; i < len(v.(Slice)); i++ {
if i+1 != len(v.(Slice)) {
where += "?,"
} else {
where += "?) "
}
//res=append(res,(v.(Slice))[i])
}
} else if reflect.ValueOf(v).Type().String() == "[]interface {}" {
where += "`" + k + "` IN ("
res = append(res, v.([]interface{})...)
for i := 0; i < len(v.([]interface{})); i++ {
if i+1 != len(v.([]interface{})) {
where += "?,"
} else {
where += "?) "
}
//res=append(res,(v.(Slice))[i])
}
} else {
where += "`" + k + "`=? "
res = append(res, v)
}
}
return where, res
}
// this.Db.Update("user",hotime.Map{"ustate":"1"},hotime.Map{"AND":hotime.Map{"OR":hotime.Map{"uid":4,"uname":"dasda"}},"ustate":1})
func (that *HoTimeDB) notIn(k string, v interface{}, where string, res []interface{}) (string, []interface{}) {
//where:=""
//fmt.Println(reflect.ValueOf(v).Type().String())
if v == nil {
where += "`" + k + "` IS NOT NULL "
} else if reflect.ValueOf(v).Type().String() == "hotime.Slice" {
where += "`" + k + "` NOT IN ("
res = append(res, v.(Slice)...)
for i := 0; i < len(v.(Slice)); i++ {
if i+1 != len(v.(Slice)) {
where += "?,"
} else {
where += "?) "
}
//res=append(res,(v.(Slice))[i])
}
} else if reflect.ValueOf(v).Type().String() == "[]interface {}" {
where += "`" + k + "` NOT IN ("
res = append(res, v.([]interface{})...)
for i := 0; i < len(v.([]interface{})); i++ {
if i+1 != len(v.([]interface{})) {
where += "?,"
} else {
where += "?) "
}
//res=append(res,(v.(Slice))[i])
}
} else {
where += "`" + k + "` !=? "
res = append(res, v)
}
return where, res
}
func (that *HoTimeDB) cond(tag string, data Map) (string, []interface{}) {
where := " "
res := make([]interface{}, 0)
lens := len(data)
//fmt.Println(lens)
for k, v := range data {
x := 0
for i := 0; i < len(condition); i++ {
if condition[i] == k {
tw, ts := that.cond(k, v.(Map))
if lens--; lens <= 0 {
//fmt.Println(lens)
where += "(" + tw + ") "
} else {
where += "(" + tw + ") " + tag + " "
}
res = append(res, ts...)
break
}
x++
}
if x == len(condition) {
tv, vv := that.varCond(k, v)
res = append(res, vv...)
if lens--; lens <= 0 {
where += tv + ""
} else {
where += tv + " " + tag + " "
}
}
}
return where, res
}
// Update 更新数据
func (that *HoTimeDB) Update(table string, data Map, where Map) int64 {
query := "UPDATE " + table + " SET "
//UPDATE Person SET Address = 'Zhongshan 23', City = 'Nanjing' WHERE LastName = 'Wilson'
qs := make([]interface{}, 0)
tp := len(data)
for k, v := range data {
vstr := "?"
if Substr(k, len(k)-3, 3) == "[#]" {
k = strings.Replace(k, "[#]", "", -1)
vstr = ObjToStr(v)
} else {
qs = append(qs, v)
}
query += "`" + k + "`=" + vstr + ""
if tp--; tp != 0 {
query += ", "
}
}
temp, resWhere := that.where(where)
//fmt.Println(resWhere)
query += temp
qs = append(qs, resWhere...)
res, err := that.Exec(query, qs...)
rows := int64(0)
if err.GetError() == nil && res != nil {
rows, _ = res.RowsAffected()
}
//如果更新成功,则删除缓存
if rows != 0 {
if that.DBCached && that.CacheIns != nil {
_ = that.Cache(table+"*", nil)
}
}
return rows
}
func (that *HoTimeDB) Delete(table string, data map[string]interface{}) int64 {
query := "DELETE FROM " + table + " "
temp, resWhere := that.where(data)
query += temp
res, err := that.Exec(query, resWhere...)
rows := int64(0)
if err.GetError() == nil && res != nil {
rows, _ = res.RowsAffected()
}
//如果删除成功,删除对应缓存
if rows != 0 {
if that.DBCached && that.CacheIns != nil {
_ = that.Cache(table+"*", nil)
}
}
//return 0
return rows
}
// Insert 插入新数据
func (that *HoTimeDB) Insert(table string, data map[string]interface{}) int64 {
values := make([]interface{}, 0)
queryString := " ("
valueString := " ("
lens := len(data)
tempLen := 0
for k, v := range data {
tempLen++
values = append(values, v)
if tempLen < lens {
queryString += "`" + k + "`,"
valueString += "?,"
} else {
queryString += "`" + k + "`) "
valueString += "?);"
}
}
query := "INSERT INTO " + table + queryString + "VALUES" + valueString
res, err := that.Exec(query, values...)
id := int64(0)
if err.GetError() == nil && res != nil {
//id, that.LastErr.err = res.LastInsertId()
}
//如果插入成功,删除缓存
if id != 0 {
if that.DBCached && that.CacheIns != nil {
_ = that.Cache(table+"*", nil)
}
}
//fmt.Println(id)
return id
}