mirror of
https://github.com/astaxie/beego.git
synced 2024-11-18 09:40:56 +00:00
641 lines
13 KiB
Go
641 lines
13 KiB
Go
package orm
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import (
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"database/sql"
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"fmt"
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"reflect"
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"time"
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)
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type rawPrepare struct {
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rs *rawSet
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stmt stmtQuerier
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closed bool
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}
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func (o *rawPrepare) Exec(args ...interface{}) (sql.Result, error) {
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if o.closed {
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return nil, ErrStmtClosed
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}
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return o.stmt.Exec(args...)
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}
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func (o *rawPrepare) Close() error {
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o.closed = true
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return o.stmt.Close()
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}
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func newRawPreparer(rs *rawSet) (RawPreparer, error) {
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o := new(rawPrepare)
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o.rs = rs
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query := rs.query
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rs.orm.alias.DbBaser.ReplaceMarks(&query)
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st, err := rs.orm.db.Prepare(query)
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if err != nil {
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return nil, err
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}
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if Debug {
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o.stmt = newStmtQueryLog(rs.orm.alias, st, query)
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} else {
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o.stmt = st
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}
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return o, nil
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}
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type rawSet struct {
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query string
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args []interface{}
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orm *orm
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}
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var _ RawSeter = new(rawSet)
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func (o rawSet) SetArgs(args ...interface{}) RawSeter {
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o.args = args
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return &o
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}
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func (o *rawSet) Exec() (sql.Result, error) {
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query := o.query
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o.orm.alias.DbBaser.ReplaceMarks(&query)
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args := getFlatParams(nil, o.args, o.orm.alias.TZ)
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return o.orm.db.Exec(query, args...)
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}
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func (o *rawSet) setFieldValue(ind reflect.Value, value interface{}) {
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switch ind.Kind() {
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case reflect.Bool:
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if value == nil {
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ind.SetBool(false)
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} else if v, ok := value.(bool); ok {
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ind.SetBool(v)
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} else {
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v, _ := StrTo(ToStr(value)).Bool()
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ind.SetBool(v)
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}
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case reflect.String:
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if value == nil {
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ind.SetString("")
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} else {
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ind.SetString(ToStr(value))
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}
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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if value == nil {
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ind.SetInt(0)
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} else {
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val := reflect.ValueOf(value)
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switch val.Kind() {
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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ind.SetInt(val.Int())
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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ind.SetInt(int64(val.Uint()))
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default:
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v, _ := StrTo(ToStr(value)).Int64()
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ind.SetInt(v)
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}
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}
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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if value == nil {
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ind.SetUint(0)
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} else {
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val := reflect.ValueOf(value)
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switch val.Kind() {
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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ind.SetUint(uint64(val.Int()))
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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ind.SetUint(val.Uint())
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default:
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v, _ := StrTo(ToStr(value)).Uint64()
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ind.SetUint(v)
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}
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}
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case reflect.Float64, reflect.Float32:
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if value == nil {
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ind.SetFloat(0)
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} else {
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val := reflect.ValueOf(value)
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switch val.Kind() {
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case reflect.Float64:
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ind.SetFloat(val.Float())
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default:
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v, _ := StrTo(ToStr(value)).Float64()
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ind.SetFloat(v)
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}
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}
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case reflect.Struct:
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if value == nil {
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ind.Set(reflect.Zero(ind.Type()))
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} else if _, ok := ind.Interface().(time.Time); ok {
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var str string
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switch d := value.(type) {
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case time.Time:
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o.orm.alias.DbBaser.TimeFromDB(&d, o.orm.alias.TZ)
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ind.Set(reflect.ValueOf(d))
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case []byte:
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str = string(d)
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case string:
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str = d
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}
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if str != "" {
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if len(str) >= 19 {
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str = str[:19]
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t, err := time.ParseInLocation(format_DateTime, str, o.orm.alias.TZ)
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if err == nil {
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t = t.In(DefaultTimeLoc)
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ind.Set(reflect.ValueOf(t))
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}
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} else if len(str) >= 10 {
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str = str[:10]
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t, err := time.ParseInLocation(format_Date, str, DefaultTimeLoc)
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if err == nil {
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ind.Set(reflect.ValueOf(t))
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}
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}
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}
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}
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}
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}
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func (o *rawSet) loopSetRefs(refs []interface{}, sInds []reflect.Value, nIndsPtr *[]reflect.Value, eTyps []reflect.Type, init bool) {
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nInds := *nIndsPtr
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cur := 0
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for i := 0; i < len(sInds); i++ {
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sInd := sInds[i]
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eTyp := eTyps[i]
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typ := eTyp
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isPtr := false
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if typ.Kind() == reflect.Ptr {
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isPtr = true
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typ = typ.Elem()
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}
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if typ.Kind() == reflect.Ptr {
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isPtr = true
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typ = typ.Elem()
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}
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var nInd reflect.Value
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if init {
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nInd = reflect.New(sInd.Type()).Elem()
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} else {
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nInd = nInds[i]
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}
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val := reflect.New(typ)
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ind := val.Elem()
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tpName := ind.Type().String()
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if ind.Kind() == reflect.Struct {
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if tpName == "time.Time" {
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value := reflect.ValueOf(refs[cur]).Elem().Interface()
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if isPtr && value == nil {
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val = reflect.New(val.Type()).Elem()
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} else {
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o.setFieldValue(ind, value)
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}
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cur++
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}
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} else {
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value := reflect.ValueOf(refs[cur]).Elem().Interface()
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if isPtr && value == nil {
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val = reflect.New(val.Type()).Elem()
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} else {
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o.setFieldValue(ind, value)
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}
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cur++
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}
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if nInd.Kind() == reflect.Slice {
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if isPtr {
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nInd = reflect.Append(nInd, val)
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} else {
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nInd = reflect.Append(nInd, ind)
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}
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} else {
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if isPtr {
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nInd.Set(val)
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} else {
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nInd.Set(ind)
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}
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}
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nInds[i] = nInd
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}
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}
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func (o *rawSet) QueryRow(containers ...interface{}) error {
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refs := make([]interface{}, 0, len(containers))
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sInds := make([]reflect.Value, 0)
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eTyps := make([]reflect.Type, 0)
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structMode := false
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var sMi *modelInfo
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for _, container := range containers {
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val := reflect.ValueOf(container)
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ind := reflect.Indirect(val)
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if val.Kind() != reflect.Ptr {
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panic(fmt.Errorf("<RawSeter.QueryRow> all args must be use ptr"))
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}
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etyp := ind.Type()
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typ := etyp
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if typ.Kind() == reflect.Ptr {
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typ = typ.Elem()
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}
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sInds = append(sInds, ind)
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eTyps = append(eTyps, etyp)
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if typ.Kind() == reflect.Struct && typ.String() != "time.Time" {
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if len(containers) > 1 {
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panic(fmt.Errorf("<RawSeter.QueryRow> now support one struct only. see #384"))
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}
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structMode = true
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fn := getFullName(typ)
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if mi, ok := modelCache.getByFN(fn); ok {
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sMi = mi
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}
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} else {
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var ref interface{}
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refs = append(refs, &ref)
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}
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}
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query := o.query
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o.orm.alias.DbBaser.ReplaceMarks(&query)
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args := getFlatParams(nil, o.args, o.orm.alias.TZ)
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rows, err := o.orm.db.Query(query, args...)
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if err != nil {
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if err == sql.ErrNoRows {
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return ErrNoRows
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}
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return err
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}
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defer rows.Close()
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if rows.Next() {
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if structMode {
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columns, err := rows.Columns()
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if err != nil {
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return err
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}
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columnsMp := make(map[string]interface{}, len(columns))
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refs = make([]interface{}, 0, len(columns))
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for _, col := range columns {
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var ref interface{}
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columnsMp[col] = &ref
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refs = append(refs, &ref)
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}
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if err := rows.Scan(refs...); err != nil {
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return err
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}
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ind := sInds[0]
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if ind.Kind() == reflect.Ptr {
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if ind.IsNil() || !ind.IsValid() {
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ind.Set(reflect.New(eTyps[0].Elem()))
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}
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ind = ind.Elem()
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}
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if sMi != nil {
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for _, col := range columns {
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if fi := sMi.fields.GetByColumn(col); fi != nil {
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value := reflect.ValueOf(columnsMp[col]).Elem().Interface()
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o.setFieldValue(ind.FieldByIndex([]int{fi.fieldIndex}), value)
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}
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}
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} else {
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for i := 0; i < ind.NumField(); i++ {
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f := ind.Field(i)
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fe := ind.Type().Field(i)
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var attrs map[string]bool
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var tags map[string]string
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parseStructTag(fe.Tag.Get("orm"), &attrs, &tags)
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var col string
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if col = tags["column"]; len(col) == 0 {
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col = snakeString(fe.Name)
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}
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if v, ok := columnsMp[col]; ok {
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value := reflect.ValueOf(v).Elem().Interface()
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o.setFieldValue(f, value)
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}
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}
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}
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} else {
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if err := rows.Scan(refs...); err != nil {
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return err
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}
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nInds := make([]reflect.Value, len(sInds))
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o.loopSetRefs(refs, sInds, &nInds, eTyps, true)
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for i, sInd := range sInds {
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nInd := nInds[i]
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sInd.Set(nInd)
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}
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}
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} else {
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return ErrNoRows
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}
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return nil
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}
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func (o *rawSet) QueryRows(containers ...interface{}) (int64, error) {
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refs := make([]interface{}, 0, len(containers))
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sInds := make([]reflect.Value, 0)
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eTyps := make([]reflect.Type, 0)
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structMode := false
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var sMi *modelInfo
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for _, container := range containers {
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val := reflect.ValueOf(container)
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sInd := reflect.Indirect(val)
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if val.Kind() != reflect.Ptr || sInd.Kind() != reflect.Slice {
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panic(fmt.Errorf("<RawSeter.QueryRows> all args must be use ptr slice"))
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}
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etyp := sInd.Type().Elem()
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typ := etyp
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if typ.Kind() == reflect.Ptr {
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typ = typ.Elem()
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}
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sInds = append(sInds, sInd)
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eTyps = append(eTyps, etyp)
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if typ.Kind() == reflect.Struct && typ.String() != "time.Time" {
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if len(containers) > 1 {
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panic(fmt.Errorf("<RawSeter.QueryRow> now support one struct only. see #384"))
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}
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structMode = true
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fn := getFullName(typ)
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if mi, ok := modelCache.getByFN(fn); ok {
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sMi = mi
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}
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} else {
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var ref interface{}
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refs = append(refs, &ref)
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}
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}
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query := o.query
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o.orm.alias.DbBaser.ReplaceMarks(&query)
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args := getFlatParams(nil, o.args, o.orm.alias.TZ)
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rows, err := o.orm.db.Query(query, args...)
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if err != nil {
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return 0, err
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}
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defer rows.Close()
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var cnt int64
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nInds := make([]reflect.Value, len(sInds))
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sInd := sInds[0]
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for rows.Next() {
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if structMode {
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columns, err := rows.Columns()
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if err != nil {
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return 0, err
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}
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columnsMp := make(map[string]interface{}, len(columns))
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refs = make([]interface{}, 0, len(columns))
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for _, col := range columns {
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var ref interface{}
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columnsMp[col] = &ref
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refs = append(refs, &ref)
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}
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if err := rows.Scan(refs...); err != nil {
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return 0, err
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}
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if cnt == 0 && !sInd.IsNil() {
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sInd.Set(reflect.New(sInd.Type()).Elem())
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}
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var ind reflect.Value
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if eTyps[0].Kind() == reflect.Ptr {
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ind = reflect.New(eTyps[0].Elem())
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} else {
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ind = reflect.New(eTyps[0])
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}
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if ind.Kind() == reflect.Ptr {
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ind = ind.Elem()
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}
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if sMi != nil {
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for _, col := range columns {
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if fi := sMi.fields.GetByColumn(col); fi != nil {
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value := reflect.ValueOf(columnsMp[col]).Elem().Interface()
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o.setFieldValue(ind.FieldByIndex([]int{fi.fieldIndex}), value)
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}
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}
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} else {
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for i := 0; i < ind.NumField(); i++ {
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f := ind.Field(i)
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fe := ind.Type().Field(i)
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var attrs map[string]bool
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var tags map[string]string
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parseStructTag(fe.Tag.Get("orm"), &attrs, &tags)
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var col string
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if col = tags["column"]; len(col) == 0 {
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col = snakeString(fe.Name)
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}
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if v, ok := columnsMp[col]; ok {
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value := reflect.ValueOf(v).Elem().Interface()
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o.setFieldValue(f, value)
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}
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}
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}
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if eTyps[0].Kind() == reflect.Ptr {
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ind = ind.Addr()
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}
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sInd = reflect.Append(sInd, ind)
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} else {
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if err := rows.Scan(refs...); err != nil {
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return 0, err
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}
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o.loopSetRefs(refs, sInds, &nInds, eTyps, cnt == 0)
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}
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cnt++
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}
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if cnt > 0 {
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if structMode {
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sInds[0].Set(sInd)
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} else {
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for i, sInd := range sInds {
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nInd := nInds[i]
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sInd.Set(nInd)
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}
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}
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}
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return cnt, nil
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}
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|
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func (o *rawSet) readValues(container interface{}) (int64, error) {
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var (
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maps []Params
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lists []ParamsList
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list ParamsList
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)
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typ := 0
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switch container.(type) {
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case *[]Params:
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typ = 1
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case *[]ParamsList:
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typ = 2
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case *ParamsList:
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typ = 3
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default:
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panic(fmt.Errorf("<RawSeter> unsupport read values type `%T`", container))
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}
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query := o.query
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o.orm.alias.DbBaser.ReplaceMarks(&query)
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args := getFlatParams(nil, o.args, o.orm.alias.TZ)
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var rs *sql.Rows
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if r, err := o.orm.db.Query(query, args...); err != nil {
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return 0, err
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} else {
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rs = r
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}
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defer rs.Close()
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var (
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refs []interface{}
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cnt int64
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cols []string
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)
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for rs.Next() {
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if cnt == 0 {
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if columns, err := rs.Columns(); err != nil {
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return 0, err
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} else {
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cols = columns
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refs = make([]interface{}, len(cols))
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for i, _ := range refs {
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var ref sql.NullString
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refs[i] = &ref
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}
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}
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}
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if err := rs.Scan(refs...); err != nil {
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return 0, err
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}
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|
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switch typ {
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case 1:
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params := make(Params, len(cols))
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for i, ref := range refs {
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value := reflect.Indirect(reflect.ValueOf(ref)).Interface().(sql.NullString)
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if value.Valid {
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params[cols[i]] = value.String
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} else {
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params[cols[i]] = nil
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}
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}
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maps = append(maps, params)
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case 2:
|
|
params := make(ParamsList, 0, len(cols))
|
|
for _, ref := range refs {
|
|
value := reflect.Indirect(reflect.ValueOf(ref)).Interface().(sql.NullString)
|
|
if value.Valid {
|
|
params = append(params, value.String)
|
|
} else {
|
|
params = append(params, nil)
|
|
}
|
|
}
|
|
lists = append(lists, params)
|
|
case 3:
|
|
for _, ref := range refs {
|
|
value := reflect.Indirect(reflect.ValueOf(ref)).Interface().(sql.NullString)
|
|
if value.Valid {
|
|
list = append(list, value.String)
|
|
} else {
|
|
list = append(list, nil)
|
|
}
|
|
}
|
|
}
|
|
|
|
cnt++
|
|
}
|
|
|
|
switch v := container.(type) {
|
|
case *[]Params:
|
|
*v = maps
|
|
case *[]ParamsList:
|
|
*v = lists
|
|
case *ParamsList:
|
|
*v = list
|
|
}
|
|
|
|
return cnt, nil
|
|
}
|
|
|
|
func (o *rawSet) Values(container *[]Params) (int64, error) {
|
|
return o.readValues(container)
|
|
}
|
|
|
|
func (o *rawSet) ValuesList(container *[]ParamsList) (int64, error) {
|
|
return o.readValues(container)
|
|
}
|
|
|
|
func (o *rawSet) ValuesFlat(container *ParamsList) (int64, error) {
|
|
return o.readValues(container)
|
|
}
|
|
|
|
func (o *rawSet) Prepare() (RawPreparer, error) {
|
|
return newRawPreparer(o)
|
|
}
|
|
|
|
func newRawSet(orm *orm, query string, args []interface{}) RawSeter {
|
|
o := new(rawSet)
|
|
o.query = query
|
|
o.args = args
|
|
o.orm = orm
|
|
return o
|
|
}
|