152 lines
3.1 KiB
Go
152 lines
3.1 KiB
Go
package orm
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import (
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"fmt"
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"reflect"
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"time"
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)
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// get table alias.
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func getDbAlias(name string) *alias {
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if al, ok := dataBaseCache.get(name); ok {
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return al
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} else {
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panic(fmt.Errorf("unknown DataBase alias name %s", name))
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}
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return nil
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}
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// get pk column info.
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func getExistPk(mi *modelInfo, ind reflect.Value) (column string, value interface{}, exist bool) {
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fi := mi.fields.pk
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v := ind.Field(fi.fieldIndex)
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if fi.fieldType&IsPostiveIntegerField > 0 {
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vu := v.Uint()
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exist = vu > 0
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value = vu
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} else if fi.fieldType&IsIntegerField > 0 {
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vu := v.Int()
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exist = vu > 0
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value = vu
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} else {
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vu := v.String()
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exist = vu != ""
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value = vu
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}
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column = fi.column
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return
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}
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// get fields description as flatted string.
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func getFlatParams(fi *fieldInfo, args []interface{}, tz *time.Location) (params []interface{}) {
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outFor:
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for _, arg := range args {
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val := reflect.ValueOf(arg)
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if arg == nil {
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params = append(params, arg)
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continue
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}
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kind := val.Kind()
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if kind == reflect.Ptr {
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val = val.Elem()
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kind = val.Kind()
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arg = val.Interface()
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}
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switch kind {
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case reflect.String:
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v := val.String()
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if fi != nil {
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if fi.fieldType == TypeDateField || fi.fieldType == TypeDateTimeField {
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var t time.Time
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var err error
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if len(v) >= 19 {
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s := v[:19]
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t, err = time.ParseInLocation(format_DateTime, s, DefaultTimeLoc)
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} else {
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s := v
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if len(v) > 10 {
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s = v[:10]
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}
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t, err = time.ParseInLocation(format_Date, s, tz)
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}
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if err == nil {
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if fi.fieldType == TypeDateField {
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v = t.In(tz).Format(format_Date)
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} else {
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v = t.In(tz).Format(format_DateTime)
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}
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}
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}
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}
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arg = v
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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arg = val.Int()
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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arg = val.Uint()
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case reflect.Float32:
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arg, _ = StrTo(ToStr(arg)).Float64()
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case reflect.Float64:
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arg = val.Float()
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case reflect.Bool:
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arg = val.Bool()
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case reflect.Slice, reflect.Array:
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if _, ok := arg.([]byte); ok {
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continue outFor
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}
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var args []interface{}
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for i := 0; i < val.Len(); i++ {
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v := val.Index(i)
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var vu interface{}
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if v.CanInterface() {
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vu = v.Interface()
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}
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if vu == nil {
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continue
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}
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args = append(args, vu)
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}
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if len(args) > 0 {
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p := getFlatParams(fi, args, tz)
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params = append(params, p...)
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}
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continue outFor
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case reflect.Struct:
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if v, ok := arg.(time.Time); ok {
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if fi != nil && fi.fieldType == TypeDateField {
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arg = v.In(tz).Format(format_Date)
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} else {
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arg = v.In(tz).Format(format_DateTime)
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}
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} else {
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typ := val.Type()
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name := getFullName(typ)
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var value interface{}
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if mmi, ok := modelCache.getByFN(name); ok {
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if _, vu, exist := getExistPk(mmi, val); exist {
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value = vu
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}
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}
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arg = value
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if arg == nil {
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panic(fmt.Errorf("need a valid args value, unknown table or value `%s`", name))
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}
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}
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}
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params = append(params, arg)
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}
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return
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}
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