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orm 1. complete QueryRow/QueryRows api 2. QuerySeter.All support *[]Type and *[]*Type

This commit is contained in:
slene
2013-09-09 22:33:41 +08:00
parent 22d2de9fc7
commit 41dd6e580d
7 changed files with 702 additions and 99 deletions

View File

@ -4,6 +4,8 @@ import (
"database/sql"
"fmt"
"reflect"
"strings"
"time"
)
type rawPrepare struct {
@ -64,14 +66,362 @@ func (o *rawSet) Exec() (sql.Result, error) {
return o.orm.db.Exec(query, args...)
}
func (o *rawSet) QueryRow(...interface{}) error {
//TODO
func (o *rawSet) setFieldValue(ind reflect.Value, value interface{}) {
switch ind.Kind() {
case reflect.Bool:
if value == nil {
ind.SetBool(false)
} else if v, ok := value.(bool); ok {
ind.SetBool(v)
} else {
v, _ := StrTo(ToStr(value)).Bool()
ind.SetBool(v)
}
case reflect.String:
if value == nil {
ind.SetString("")
} else {
ind.SetString(ToStr(value))
}
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
if value == nil {
ind.SetInt(0)
} else {
val := reflect.ValueOf(value)
switch val.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
ind.SetInt(val.Int())
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
ind.SetInt(int64(val.Uint()))
default:
v, _ := StrTo(ToStr(value)).Int64()
ind.SetInt(v)
}
}
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
if value == nil {
ind.SetUint(0)
} else {
val := reflect.ValueOf(value)
switch val.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
ind.SetUint(uint64(val.Int()))
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
ind.SetUint(val.Uint())
default:
v, _ := StrTo(ToStr(value)).Uint64()
ind.SetUint(v)
}
}
case reflect.Float64, reflect.Float32:
if value == nil {
ind.SetFloat(0)
} else {
val := reflect.ValueOf(value)
switch val.Kind() {
case reflect.Float64:
ind.SetFloat(val.Float())
default:
v, _ := StrTo(ToStr(value)).Float64()
ind.SetFloat(v)
}
}
case reflect.Struct:
if value == nil {
ind.Set(reflect.Zero(ind.Type()))
} else if _, ok := ind.Interface().(time.Time); ok {
var str string
switch d := value.(type) {
case time.Time:
o.orm.alias.DbBaser.TimeFromDB(&d, o.orm.alias.TZ)
ind.Set(reflect.ValueOf(d))
case []byte:
str = string(d)
case string:
str = d
}
if str != "" {
if len(str) >= 19 {
str = str[:19]
t, err := time.ParseInLocation(format_DateTime, str, o.orm.alias.TZ)
if err == nil {
t = t.In(DefaultTimeLoc)
ind.Set(reflect.ValueOf(t))
}
} else if len(str) >= 10 {
str = str[:10]
t, err := time.ParseInLocation(format_Date, str, DefaultTimeLoc)
if err == nil {
ind.Set(reflect.ValueOf(t))
}
}
}
}
}
}
func (o *rawSet) loopInitRefs(typ reflect.Type, refsPtr *[]interface{}, sIdxesPtr *[][]int) {
sIdxes := *sIdxesPtr
refs := *refsPtr
if typ.Kind() == reflect.Struct {
if typ.String() == "time.Time" {
var ref interface{}
refs = append(refs, &ref)
sIdxes = append(sIdxes, []int{0})
} else {
idxs := []int{}
outFor:
for idx := 0; idx < typ.NumField(); idx++ {
ctyp := typ.Field(idx)
tag := ctyp.Tag.Get(defaultStructTagName)
for _, v := range strings.Split(tag, defaultStructTagDelim) {
if v == "-" {
continue outFor
}
}
tp := ctyp.Type
if tp.Kind() == reflect.Ptr {
tp = tp.Elem()
}
if tp.String() == "time.Time" {
var ref interface{}
refs = append(refs, &ref)
} else if tp.Kind() != reflect.Struct {
var ref interface{}
refs = append(refs, &ref)
} else {
// skip other type
continue
}
idxs = append(idxs, idx)
}
sIdxes = append(sIdxes, idxs)
}
} else {
var ref interface{}
refs = append(refs, &ref)
sIdxes = append(sIdxes, []int{0})
}
*sIdxesPtr = sIdxes
*refsPtr = refs
}
func (o *rawSet) loopSetRefs(refs []interface{}, sIdxes [][]int, sInds []reflect.Value, nIndsPtr *[]reflect.Value, eTyps []reflect.Type, init bool) {
nInds := *nIndsPtr
cur := 0
for i, idxs := range sIdxes {
sInd := sInds[i]
eTyp := eTyps[i]
typ := eTyp
isPtr := false
if typ.Kind() == reflect.Ptr {
isPtr = true
typ = typ.Elem()
}
if typ.Kind() == reflect.Ptr {
isPtr = true
typ = typ.Elem()
}
var nInd reflect.Value
if init {
nInd = reflect.New(sInd.Type()).Elem()
} else {
nInd = nInds[i]
}
val := reflect.New(typ)
ind := val.Elem()
tpName := ind.Type().String()
if ind.Kind() == reflect.Struct {
if tpName == "time.Time" {
value := reflect.ValueOf(refs[cur]).Elem().Interface()
if isPtr && value == nil {
val = reflect.New(val.Type()).Elem()
} else {
o.setFieldValue(ind, value)
}
cur++
} else {
hasValue := false
for _, idx := range idxs {
tind := ind.Field(idx)
value := reflect.ValueOf(refs[cur]).Elem().Interface()
if value != nil {
hasValue = true
}
if tind.Kind() == reflect.Ptr {
if value == nil {
tindV := reflect.New(tind.Type()).Elem()
tind.Set(tindV)
} else {
tindV := reflect.New(tind.Type().Elem())
o.setFieldValue(tindV.Elem(), value)
tind.Set(tindV)
}
} else {
o.setFieldValue(tind, value)
}
cur++
}
if hasValue == false && isPtr {
val = reflect.New(val.Type()).Elem()
}
}
} else {
value := reflect.ValueOf(refs[cur]).Elem().Interface()
if isPtr && value == nil {
val = reflect.New(val.Type()).Elem()
} else {
o.setFieldValue(ind, value)
}
cur++
}
if nInd.Kind() == reflect.Slice {
if isPtr {
nInd = reflect.Append(nInd, val)
} else {
nInd = reflect.Append(nInd, ind)
}
} else {
if isPtr {
nInd.Set(val)
} else {
nInd.Set(ind)
}
}
nInds[i] = nInd
}
}
func (o *rawSet) QueryRow(containers ...interface{}) error {
if len(containers) == 0 {
panic("<RawSeter.QueryRow> need at least one arg")
}
refs := make([]interface{}, 0, len(containers))
sIdxes := make([][]int, 0)
sInds := make([]reflect.Value, 0)
eTyps := make([]reflect.Type, 0)
for _, container := range containers {
val := reflect.ValueOf(container)
ind := reflect.Indirect(val)
if val.Kind() != reflect.Ptr {
panic("<RawSeter.QueryRow> all args must be use ptr")
}
etyp := ind.Type()
typ := etyp
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
}
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
}
sInds = append(sInds, ind)
eTyps = append(eTyps, etyp)
o.loopInitRefs(typ, &refs, &sIdxes)
}
query := o.query
o.orm.alias.DbBaser.ReplaceMarks(&query)
args := getFlatParams(nil, o.args, o.orm.alias.TZ)
row := o.orm.db.QueryRow(query, args...)
if err := row.Scan(refs...); err == sql.ErrNoRows {
return ErrNoRows
} else if err != nil {
return err
}
nInds := make([]reflect.Value, len(sInds))
o.loopSetRefs(refs, sIdxes, sInds, &nInds, eTyps, true)
for i, sInd := range sInds {
nInd := nInds[i]
sInd.Set(nInd)
}
return nil
}
func (o *rawSet) QueryRows(...interface{}) (int64, error) {
//TODO
return 0, nil
func (o *rawSet) QueryRows(containers ...interface{}) (int64, error) {
refs := make([]interface{}, 0)
sIdxes := make([][]int, 0)
sInds := make([]reflect.Value, 0)
eTyps := make([]reflect.Type, 0)
for _, container := range containers {
val := reflect.ValueOf(container)
sInd := reflect.Indirect(val)
if val.Kind() != reflect.Ptr || sInd.Kind() != reflect.Slice {
panic("<RawSeter.QueryRows> all args must be use ptr slice")
}
etyp := sInd.Type().Elem()
typ := etyp
if typ.Kind() == reflect.Ptr {
typ = typ.Elem()
}
sInds = append(sInds, sInd)
eTyps = append(eTyps, etyp)
o.loopInitRefs(typ, &refs, &sIdxes)
}
query := o.query
o.orm.alias.DbBaser.ReplaceMarks(&query)
args := getFlatParams(nil, o.args, o.orm.alias.TZ)
rows, err := o.orm.db.Query(query, args...)
if err != nil {
return 0, err
}
nInds := make([]reflect.Value, len(sInds))
var cnt int64
for rows.Next() {
if err := rows.Scan(refs...); err != nil {
return 0, err
}
o.loopSetRefs(refs, sIdxes, sInds, &nInds, eTyps, cnt == 0)
cnt++
}
if cnt > 0 {
for i, sInd := range sInds {
nInd := nInds[i]
sInd.Set(nInd)
}
}
return cnt, nil
}
func (o *rawSet) readValues(container interface{}) (int64, error) {