/
slimsql.go
1007 lines (951 loc) · 22.8 KB
/
slimsql.go
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package slimmysql
import (
"database/sql"
"errors"
"fmt"
_ "github.com/go-sql-driver/mysql"
"strconv"
"strings"
)
const VERSION = "2.1.0"
type Conns struct {
sqlDB *sql.DB //master db for write | 主库
sqlDBSub []*sql.DB //dbs for read | 从
rwSeparate bool //use read,write separate | 使用读写分离
safeMode bool //safe for sql format | sql注入安全
rwSepTag int //tag of dbs for read order | 读库顺序标记
subCount int //count of dbs for read | 读库数量
prefix string //prefix of tables | 数据库前缀
}
var conns map[string]*Conns //all connections
func init() {
conns = make(map[string]*Conns)
}
/**
* [RegisterConnectionDefault Reg the default connection]
* @param {[bool]} rwSep bool [use RWseparate]
* @param {[string]} hosts [hosts for exp:192.168.0.1,192.168.0.2]
* @param {[string]} port [port for exp:3306,3307]
* @param {[string]} dbname [dbnames]
* @param {[string]} user [users]
* @param {[string]} pass string [passwords]
* @param {[string]} pre string [prefix]
* @param {[bool]} safe bool [safemode]
* @param {[int]} maxOpenConnsNmaxIdleConns ...int [maxOpenConns and maxIdleConns for exp:2000,1000]
*/
func RegisterConnectionDefault(rwSep bool, hosts, port, dbname, user, pass string, pre string, safe bool, maxOpenConnsNmaxIdleConns ...int) {
RegisterConnection("default", rwSep, hosts, port, dbname, user, pass, pre, safe, maxOpenConnsNmaxIdleConns...)
}
/**
* [RegisterConnection Reg a connection]
* @param {[string]} name string [connection name]
* @param {[bool]} rwSep bool [use RWseparate]
* @param {[string]} hosts [hosts for exp:192.168.0.1,192.168.0.2]
* @param {[string]} port [port for exp:3306,3307]
* @param {[string]} dbname [dbnames]
* @param {[string]} user [users]
* @param {[string]} pass string [passwords]
* @param {[string]} pre string [prefix]
* @param {[bool]} safe bool [safemode]
* @param {[int]} maxOpenConnsNmaxIdleConns ...int [maxOpenConns and maxIdleConns for exp:2000,1000]
*/
func RegisterConnection(name string, rwSep bool, hosts, port, dbname, user, pass string, pre string, safe bool, maxOpenConnsNmaxIdleConns ...int) {
conn := &Conns{
rwSeparate: rwSep,
safeMode: safe,
rwSepTag: 0,
subCount: 0,
prefix: pre,
}
maxOpenConns := 2000
maxIdleConns := 1000
if len(maxOpenConnsNmaxIdleConns) == 2 {
maxOpenConns = maxOpenConnsNmaxIdleConns[0]
maxIdleConns = maxOpenConnsNmaxIdleConns[1]
} else if len(maxOpenConnsNmaxIdleConns) == 1 {
maxOpenConns = maxOpenConnsNmaxIdleConns[0]
}
if rwSep {
hostsArr := strings.Split(hosts, ",")
hostsNum := len(hostsArr)
if hostsNum == 0 {
panic("No hosts set.")
}
portArr := strings.Split(port, ",")
if len(portArr) == 0 {
panic("No ports set.")
}
dbnameArr := strings.Split(dbname, ",")
if len(dbnameArr) == 0 {
panic("No db set.")
}
userArr := strings.Split(user, ",")
if len(userArr) == 0 {
panic("No user set.")
}
passArr := strings.Split(pass, ",")
if len(passArr) == 0 {
panic("No password set.")
}
//reg master
dbmaster, err := conn.initSql(hostsArr[0], portArr[0], dbnameArr[0], userArr[0], passArr[0], maxOpenConns, maxIdleConns)
if err != nil {
panic("Register Mysql Connection Failed.")
}
conn.sqlDB = dbmaster
//reg sub
if len(hostsArr) > 1 {
//has sub
for key, hostTemp := range hostsArr[1:] {
k := key + 1
var portTemp, dbnameTemp, userTemp, passTemp string
var ok bool
if ok = k < len(portArr); !ok {
portTemp = portArr[len(portArr)-1]
} else {
portTemp = portArr[k]
}
if ok = k < len(dbnameArr); !ok {
dbnameTemp = dbnameArr[len(dbnameArr)-1]
} else {
dbnameTemp = dbnameArr[k]
}
if ok = k < len(userArr); !ok {
userTemp = userArr[len(userArr)-1]
} else {
userTemp = userArr[k]
}
if ok = k < len(passArr); !ok {
passTemp = passArr[len(passArr)-1]
} else {
passTemp = passArr[k]
}
dbsub, err := conn.initSql(hostTemp, portTemp, dbnameTemp, userTemp, passTemp, maxOpenConns, maxIdleConns)
if err != nil {
panic("Register Mysql Connection Failed.")
}
conn.sqlDBSub = append(conn.sqlDBSub, dbsub)
conn.subCount++
}
}
} else {
dbmaster, err := conn.initSql(hosts, port, dbname, user, pass, maxOpenConns, maxIdleConns)
if err != nil {
panic("Register Mysql Connection Failed.")
}
conn.sqlDB = dbmaster
}
conns[name] = conn
}
func (this *Conns) initSql(host, port, dbname, user, pass string, maxOpenConns, maxIdleConns int) (*sql.DB, error) {
slimSqlLog("Init", "user:"+user+" pass:"+pass+" host:"+host+" port:"+port+" dbname:"+dbname)
var sqlDB *sql.DB
var err error
sqlDB, err = sql.Open("mysql", user+":"+pass+"@tcp("+host+":"+port+")/"+dbname+"?charset=utf8")
if err != nil {
return nil, err
}
if maxOpenConns > 0 {
sqlDB.SetMaxOpenConns(maxOpenConns)
} else {
sqlDB.SetMaxOpenConns(2000)
}
if maxIdleConns > 0 {
sqlDB.SetMaxIdleConns(maxIdleConns)
} else {
sqlDB.SetMaxIdleConns(1000)
}
err = sqlDB.Ping()
if err != nil {
return nil, err
}
return sqlDB, nil
}
/**
* 获取写库sql.DB
*/
func (this *Conns) getDbW() *sql.DB {
return this.sqlDB
}
/**
* 获取读库sql.DB
*/
func (this *Conns) getDbR() *sql.DB {
if this.rwSeparate {
//无从库 走主库
if this.subCount == 0 {
return this.sqlDB
}
//按顺序分配从库
if this.rwSepTag < this.subCount {
dbUsed := this.sqlDBSub[this.rwSepTag]
this.rwSepTag++
return dbUsed
} else {
this.rwSepTag = 1
return this.sqlDBSub[0]
}
} else {
return this.sqlDB
}
}
/**
* [NewSqlInstanceDefault Get a new instance for user]
*/
func NewSqlInstanceDefault() (*Sql, error) {
return NewSqlInstance("default")
}
/**
* [NewSqlInstance Get a new instance for user]
* @param {[string]} name string [connection name]
* @return (*Sql, error)
*/
func NewSqlInstance(name string) (*Sql, error) {
conn, ok := conns[name]
if !ok {
return nil, errors.New("Connection " + name + " not found.")
}
sqlInstance := &Sql{
conn_id: name,
connection: conn,
}
return sqlInstance.Clear(), nil
}
type Sql struct {
conn_id string //Which connection to use
connection *Conns //connection
mustMaster bool //must use db master
fieldsSql string
tableName string
conditionSql string //sql in where
joinSql string
groupSql string
havingSql string
orderSql string
pageSql string
tx *sql.Tx //Transaction
pkSql string //primary key
forupdate bool //for update
}
func (this *Sql) GetConnectionName() string {
return this.conn_id
}
func (this *Sql) MustMaster(mustMaster bool) *Sql {
this.mustMaster = mustMaster
return this
}
/**
* Get the sql.DB from db write
*/
func (this *Sql) getDbW() *sql.DB {
return this.connection.getDbW()
}
/**
* Get the sql.DB from db read
*/
func (this *Sql) getDbR() *sql.DB {
if this.mustMaster {
return this.connection.getDbW()
} else {
return this.connection.getDbR()
}
}
/**
* Set table name,use prefix
*/
func (this *Sql) Table(tablename string) *Sql {
this.tableName = this.connection.prefix + this.safeInSql(tablename, 1)
return this
}
/**
* Set table name,no prefix
*/
func (this *Sql) TrueTable(tablename string) *Sql {
this.tableName = this.safeInSql(tablename, 1)
return this
}
/**
* Set primary key
*/
func (this *Sql) Pk(pk string) *Sql {
this.pkSql = pk
return this
}
/**
* Set fields we want select
* example:"id,title"
*/
func (this *Sql) Fields(filed string) *Sql {
this.fieldsSql = this.safeInSql(filed, 1)
return this
}
/**
* Join table
* example:"INNER JOIN B on A.id = B.aid"
*/
func (this *Sql) Join(joinsql string) *Sql {
this.joinSql = this.safeInSql(joinsql, 2)
return this
}
/**
* group by
*/
func (this *Sql) Group(g string) *Sql {
this.groupSql = this.safeInSql(g, 1)
return this
}
/**
* having after group by
* example:"age > 24"
*/
func (this *Sql) Having(h string) *Sql {
this.havingSql = this.safeInSql(h, 2)
return this
}
/**
* order by
* example:"id desc"
*/
func (this *Sql) Order(order string) *Sql {
this.orderSql = this.safeInSql(order, 2)
return this
}
/**
* page limit
*/
func (this *Sql) Page(page int, pagesize int) *Sql {
offset := (page - 1) * pagesize
this.pageSql = " LIMIT " + strconv.Itoa(offset) + "," + strconv.Itoa(pagesize)
return this
}
/**
* where
* @param condition:string/map
*/
func (this *Sql) Where(condition interface{}) *Sql {
switch condition.(type) {
case string:
this.conditionSql = this.safeInSql(condition.(string), 2)
break
case map[string]interface{}:
this.conditionSql = this.convertCondition(condition.(map[string]interface{}))
break
}
return this
}
/**
* convert condition to sql
*/
func (this *Sql) convertCondition(condition map[string]interface{}) string {
sql := ""
join := "AND"
if condition["relation"] != nil && strings.ToUpper(condition["relation"].(string)) == "OR" {
join = "OR"
}
i := 0
join_sql := " "
var temp_key string
var sign string
for k, v := range condition {
if k == "relation" {
continue
}
if i == 0 {
join_sql = " "
} else {
join_sql = " " + join + " "
}
if k == "_" {
sql += join_sql + "(" + this.convertCondition(v.(map[string]interface{})) + ")"
i++
continue
}
temp := this.convertValue2String(v)
if len(temp) > 0 {
if strings.Contains(k, "__") {
keys := strings.Split(k, "__")
temp_key = keys[0]
sign = keys[1]
} else {
temp_key = k
sign = "="
}
switch sign {
case "=":
sql += join_sql + temp_key + " = " + "'" + temp + "' "
break
case "neq":
sql += join_sql + temp_key + " != " + "'" + temp + "' "
break
case "gt":
sql += join_sql + temp_key + " > " + "'" + temp + "' "
break
case "egt":
sql += join_sql + temp_key + " >= " + "'" + temp + "' "
break
case "lt":
sql += join_sql + temp_key + " < " + "'" + temp + "' "
break
case "elt":
sql += join_sql + temp_key + " <= " + "'" + temp + "' "
break
case "between":
temp_v := strings.Split(temp, "|")
sql += join_sql + " ( " + temp_key + " BETWEEN '" + temp_v[0] + "' AND '" + temp_v[1] + "' ) "
break
case "in":
sql += join_sql + temp_key + " IN (" + temp + ") "
break
case "notin":
sql += join_sql + temp_key + " NOT IN (" + temp + ") "
break
case "like":
sql += join_sql + temp_key + " LIKE '%" + temp + "%' "
break
case "isnull":
sql += join_sql + " ISNULL(" + temp_key + ") "
break
case "isnotnull":
sql += join_sql + " " + temp_key + " IS NOT NULL "
break
default:
sql += join_sql + " 1 = 1 "
break
}
i++
}
}
return sql
}
/**
* return the final sql str
* @param isSelect true select false count
*/
func (this *Sql) GetSql(isSelect bool) string {
sql := ""
if isSelect {
sql += "SELECT "
} else {
sql += "SELECT count("
}
if len(this.fieldsSql) > 0 {
sql += this.fieldsSql
} else {
sql += "*"
}
if isSelect {
} else {
sql += ")"
}
sql += " FROM `" + this.tableName + "` "
if len(this.joinSql) > 0 {
sql += this.joinSql + " "
}
if len(this.conditionSql) > 0 {
sql += " WHERE " + this.conditionSql
}
if len(this.groupSql) > 0 {
sql += " GROUP BY " + this.groupSql
if len(this.havingSql) > 0 {
sql += " HAVING " + this.havingSql
}
}
if len(this.orderSql) > 0 {
sql += " ORDER BY " + this.orderSql
}
if len(this.pageSql) > 0 {
sql += " " + this.pageSql
}
return sql
}
/**
* select one return a single map
*/
func (this *Sql) Find(id interface{}) (map[string]string, error) {
if len(this.pageSql) > 0 {
this.pageSql = ""
}
if id != nil {
sel_id := this.convertValue2String(id)
if len(this.pkSql) > 0 {
this.conditionSql = this.pkSql + " = '" + sel_id + "'"
} else {
this.conditionSql = "id = '" + sel_id + "'"
}
}
sqlstr := this.GetSql(true) + " limit 1"
var rows *sql.Rows
var err error
if this.tx != nil {
if this.forupdate == true {
sqlstr += " FOR UPDATE"
}
rows, err = this.tx.Query(sqlstr)
} else {
rows, err = this.getDbR().Query(sqlstr)
}
//slimSqlLog("Find", sqlstr)
if err != nil {
slimSqlLog("ERROR", sqlstr)
return nil, err
}
defer rows.Close()
if rows.Next() {
columns, _ := rows.Columns()
scanArgs := make([]interface{}, len(columns))
values := make([]interface{}, len(columns))
record := make(map[string]string)
for j := range values {
scanArgs[j] = &values[j]
}
rows.Scan(scanArgs...)
for i, col := range values {
if col != nil {
record[columns[i]] = string(col.([]byte))
}
}
return record, nil
}
return nil, nil
}
/**
* base select func
* @param bool pk true:return a map,first field is key|false:reuturn an array
* @param real_sql string
*/
func (this *Sql) baseSelect(pk bool, real_sql ...string) (map[string](map[string]string), []map[string]string, error) {
var sqlstr string
if len(real_sql) > 0 {
sqlstr = this.safeInSql(real_sql[0], 2)
} else {
sqlstr = this.GetSql(true)
}
var rows *sql.Rows
var err error
if this.tx != nil {
if this.forupdate == true {
sqlstr += " FOR UPDATE"
}
rows, err = this.tx.Query(sqlstr)
} else {
rows, err = this.getDbR().Query(sqlstr)
}
//slimSqlLog("Select", sqlstr)
if err != nil {
slimSqlLog("ERROR", sqlstr)
return nil, nil, err
}
defer rows.Close()
columns, err := rows.Columns()
if err != nil {
slimSqlLog("ERROR", err.Error())
return nil, nil, err
}
scanArgs := make([]interface{}, len(columns))
values := make([]interface{}, len(columns))
for j := range values {
scanArgs[j] = &values[j]
}
records := make(map[string](map[string]string))
var records_arr []map[string]string
for rows.Next() {
record := make(map[string]string)
rows.Scan(scanArgs...)
for i, col := range values {
if col != nil {
record[columns[i]] = string(col.([]byte))
} else {
record[columns[i]] = ""
}
}
if pk {
records[record[columns[0]]] = record
} else {
records_arr = append(records_arr, record)
}
}
return records, records_arr, nil
}
/**
* select func,return array
*/
func (this *Sql) Select() ([]map[string]string, error) {
_, r, err := this.baseSelect(false)
return r, err
}
/**
* select func,return map,key is the first field
*/
func (this *Sql) GetField(fields string) (map[string](map[string]string), error) {
this.fieldsSql = fields
r, _, err := this.baseSelect(true)
return r, err
}
/**
* Count
*/
func (this *Sql) Count(filed string) (int, error) {
if len(filed) > 0 {
this.fieldsSql = this.convertValue2String(filed)
} else {
this.fieldsSql = "*"
}
this.orderSql = ""
this.pageSql = ""
sqlstr := this.GetSql(false)
//slimSqlLog("Count", sqlstr)
var rows *sql.Rows
var err error
if this.tx != nil {
rows, err = this.tx.Query(sqlstr)
} else {
rows, err = this.getDbR().Query(sqlstr)
}
if err != nil {
slimSqlLog("ERROR", sqlstr)
return 0, err
}
defer rows.Close()
scanArgs := make([]interface{}, 1)
values := make([]interface{}, 1)
scanArgs[0] = &values[0]
if rows.Next() {
rows.Scan(scanArgs...)
var count int
count, err = strconv.Atoi(string(values[0].([]byte)))
if err != nil {
return 0, err
}
return count, nil
}
return 0, nil
}
/**
* Filter for sql safe
* @sql
* @level 1:space 2:;and\n 3:1+2
*/
func (this *Sql) safeInSql(sql string, level int) string {
if this.connection.safeMode {
if level == 1 {
return strings.Replace(sql, " ", "", -1)
} else if level == 2 {
return strings.Replace(strings.Replace(sql, ";", "", -1), "\n", "", -1)
} else {
return strings.Replace(strings.Replace(strings.Replace(sql, ";", "", -1), "\n", "", -1), " ", "", -1)
}
} else {
return sql
}
}
/**
* Convert value to string with sql safe
* @v value
*/
func (this *Sql) convertValue2String(v interface{}) string {
var r string
switch v.(type) {
case string:
r = this.safeInSql(v.(string), 1)
break
case int:
r = strconv.Itoa(v.(int))
break
case int32:
r = strconv.FormatInt(int64(v.(int32)), 10)
break
case int64:
r = strconv.FormatInt(v.(int64), 10)
break
case float32:
r = strconv.FormatFloat(float64(v.(float32)), 'f', -1, 10)
break
case float64:
r = strconv.FormatFloat(v.(float64), 'f', -1, 10)
break
}
return r
}
/**
* Insert / convert ""/'' maybe a bug.
* @param map of data
* @return id,err
*/
func (this *Sql) Add(data map[string]interface{}) (int64, error) {
var columns []string
var values []string
for k, v := range data {
columns = append(columns, k)
tmp_v := this.convertValue2String(v)
values = append(values, "\""+tmp_v+"\"")
}
sqlstr := " INSERT INTO `" + this.tableName + "` " + " (" + strings.Join(columns, ",") + ") VALUES (" + strings.Join(values, ",") + ") "
//slimSqlLog("Insert", sqlstr)
var r sql.Result
var err error
if this.tx != nil {
r, err = this.tx.Exec(sqlstr)
} else {
r, err = this.getDbW().Exec(sqlstr)
}
if err != nil {
slimSqlLog("ERROR", sqlstr)
return 0, err
} else {
id, err := r.LastInsertId()
if err != nil {
return 0, err
} else {
return id, nil
}
}
}
/**
* Update / convert ""/'' maybe a bug.
* @param map data
* @return effect_colunms,err
*/
func (this *Sql) Save(data map[string]interface{}) (int64, error) {
sqlstr := " UPDATE " + this.tableName + " "
setsql := " SET "
count := 0
var pk string
if len(this.pkSql) > 0 {
pk = this.pkSql
} else {
pk = "id"
}
for k, v := range data {
if k == pk {
continue
}
if count > 0 {
setsql += ", " + k + "=\"" + this.convertValue2String(v) + "\" "
} else {
setsql += " " + k + "=\"" + this.convertValue2String(v) + "\" "
}
count++
}
if len(this.conditionSql) > 0 {
//do not need pk
} else {
this.conditionSql = pk + " = \"" + this.convertValue2String(data[pk]) + "\" "
}
sqlstr += setsql + " WHERE " + this.conditionSql
//slimSqlLog("Update", sqlstr)
var r sql.Result
var err error
if this.tx != nil {
r, err = this.tx.Exec(sqlstr)
} else {
r, err = this.getDbW().Exec(sqlstr)
}
if err != nil {
slimSqlLog("ERROR", sqlstr)
return 0, err
} else {
num, err := r.RowsAffected()
if err != nil {
return 0, err
} else {
return num, nil
}
}
}
/**
* SetInc
* @param fieldname string
* @param value int
* @return rows,error
*/
func (this *Sql) SetInc(field string, value int) (int64, error) {
sqlstr := " UPDATE " + this.tableName + " "
sqlstr += " SET "
field_filted := this.convertValue2String(field)
sqlstr += field_filted + " = " + field_filted + " + " + this.convertValue2String(value)
sqlstr += " WHERE "
sqlstr += this.conditionSql
//slimSqlLog("SETINC", sqlstr)
var r sql.Result
var err error
if this.tx != nil {
r, err = this.tx.Exec(sqlstr)
} else {
r, err = this.getDbW().Exec(sqlstr)
}
if err != nil {
slimSqlLog("ERROR", sqlstr)
return 0, err
} else {
num, err := r.RowsAffected()
if err != nil {
return 0, err
} else {
return num, nil
}
}
}
/**
* Delete
* @return effect,error
*/
func (this *Sql) Delete() (int64, error) {
sqlstr := " DELETE FROM " + this.tableName + " WHERE " + this.conditionSql
//slimSqlLog("Delete", sqlstr)
var r sql.Result
var err error
if this.tx != nil {
r, err = this.tx.Exec(sqlstr)
} else {
r, err = this.getDbW().Exec(sqlstr)
}
if err != nil {
slimSqlLog("ERROR", sqlstr)
return 0, err
} else {
num, err := r.RowsAffected()
if err != nil {
return 0, err
} else {
return num, nil
}
}
}
func (this *Sql) StartTrans() (bool, string) {
if this.tx != nil {
//slimSqlLog("Tx", "Start new tx failed because tx is not null.")
return false, "Tx not null!"
} else {
var err error
this.tx, err = this.getDbW().Begin()
if err != nil {
slimSqlLog("Tx", "Start new tx failed because "+err.Error())
return false, err.Error()
} else {
//slimSqlLog("Tx", "Start new tx success.")
return true, ""
}
}
}
func (this *Sql) Commit() (bool, string) {
if this.tx == nil {
//slimSqlLog("Tx", "Commit tx failed because tx is null.")
return false, "Tx is null!"
} else {
var err error
err = this.tx.Commit()
this.tx = nil
if err != nil {
slimSqlLog("Tx", "Commit tx failed because "+err.Error())
return false, err.Error()
} else {
//slimSqlLog("Tx", "Commit tx success.")
return true, ""
}
}
}
func (this *Sql) Rollback() (bool, string) {
if this.tx == nil {
//slimSqlLog("Tx", "Rollback tx failed because tx is null.")
return false, "Tx is null!"
} else {
var err error
err = this.tx.Rollback()
this.tx = nil
if err != nil {
slimSqlLog("Tx", "Rollback tx failed because "+err.Error())
return false, err.Error()
} else {
//slimSqlLog("Tx", "Rollback tx success.")
return true, ""
}
}
}
/**
* Lock table
*/
func (this *Sql) Lock(tables string, wirte bool) (bool, string) {
tablesStr := this.safeInSql(tables, 2)
wirteorread := "READ"
if wirte == true {
wirteorread = "WRITE"
}
sqlstr := "LOCK TABLE " + tablesStr + " " + wirteorread
_, err := this.getDbW().Exec(sqlstr)
if err != nil {
slimSqlLog("Lock", "Lock "+tablesStr+" failed because "+err.Error())
return false, err.Error()
}
//slimSqlLog("Lock", "Lock "+tablesStr+" success")
return true, ""
}
/**
* Unlock
*/
func (this *Sql) Unlock() (bool, string) {
sqlstr := "UNLOCK TABLES"
_, err := this.getDbW().Exec(sqlstr)
if err != nil {
slimSqlLog("UnLock", "UnLock failed because "+err.Error())
return false, err.Error()
}
//slimSqlLog("UnLock", "UnLock success")
return true, ""
}
/**
* Lock row / for update
*/
func (this *Sql) LockRow() *Sql {
if this.tx == nil {
//slimSqlLog("LockRow", "Lockrow failed because tx is null.")
return this
} else {
this.forupdate = true
return this
}
}
func (this *Sql) Clear() *Sql {
if this.tx != nil {
this.Commit()
}
this.mustMaster = false
this.fieldsSql = ""
this.tableName = ""
this.conditionSql = ""
this.joinSql = ""
this.groupSql = ""
this.havingSql = ""
this.orderSql = ""
this.pageSql = ""
this.tx = nil
this.pkSql = ""
this.forupdate = false
return this
}
func slimSqlLog(thetype string, content string) {
fmt.Println("[SLIMSQL] " + thetype + ": " + content)
}
func (this *Sql) Ping() (bool, string) {
err := this.getDbW().Ping()
if err != nil {
return false, err.Error()
} else {
return true, ""
}
}
func (this *Sql) NewCondition() map[string]interface{} {
return make(map[string]interface{})
}
func (this *Sql) Query(theSql string) (*sql.Rows, error) {
return this.getDbR().Query(theSql)
}
func (this *Sql) QueryRow(theSql string) *sql.Row {
return this.getDbR().QueryRow(theSql)
}
func (this *Sql) Exec(theSql string) (sql.Result, error) {