/
jsonobjmarshal.go
76 lines (72 loc) · 2.01 KB
/
jsonobjmarshal.go
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package utils
import (
"fmt"
"reflect"
// "github.com/kevinyjn/gocom/logger"
"go.mongodb.org/mongo-driver/bson/primitive"
)
// JSONObjUnmarshal unmarshal object
func JSONObjUnmarshal(in *map[string]interface{}, out interface{}) error {
rval := reflect.ValueOf(out)
if rval.Kind() != reflect.Ptr {
return fmt.Errorf("argument to Decode must be a pointer to a type, but got %v", rval)
}
st := rval.Type().Elem()
rval = rval.Elem()
for i := 0; i < st.NumField(); i++ {
sf := st.Field(i)
fieldName := sf.Tag.Get("bson")
if fieldName == "" {
fieldName = sf.Tag.Get("json")
} else if (*in)[fieldName] == nil {
fieldName = sf.Tag.Get("json")
}
if fieldName == "" {
continue
}
fieldValue := (*in)[fieldName]
if fieldValue == nil {
continue
}
fts := sf.Type.String()
field := rval.FieldByName(sf.Name)
switch fts {
case "primitive.ObjectID":
oval, err := primitive.ObjectIDFromHex(ToString(fieldValue))
if err != nil {
return err
}
field.Set(reflect.ValueOf(oval))
case "string":
field.SetString(ToString(fieldValue))
case "int", "int64":
field.SetInt(ToInt64(fieldValue))
case "bool":
field.SetBool(ToBoolean(fieldValue))
case "float", "float64":
field.SetFloat(ToDouble(fieldValue))
case "uint64":
field.SetUint(ToUint64(fieldValue))
case "map[string]string":
if reflect.ValueOf(fieldValue).Type().String() == "map[string]interface {}" {
mval := map[string]string{}
for fk, fv := range fieldValue.(map[string]interface{}) {
mval[fk] = ToString(fv)
}
field.Set(reflect.ValueOf(mval))
}
// case "map[string]interface {}":
// if reflect.ValueOf(fieldValue).Type().String() == "map[string]interface {}" {
// mval := map[string]interface{}{}
// for fk, fv := range fieldValue.(map[string]interface{}) {
// mval[fk] = fv
// }
// field.Set(reflect.ValueOf(mval))
// }
default:
field.Set(reflect.ValueOf(fieldValue))
// logger.Info.Printf("Set field type:%s for field:%s", fts, sf.Name)
}
}
return nil
}