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serializer.go
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serializer.go
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package serializers
import (
"encoding/json"
"reflect"
"strings"
"github.com/DmitryVesenniy/go-rest-framework/framework/models"
)
type Serializer struct {
fields map[string]Rules
errors map[string][]string
InstanceModel models.BaseModelInterface `json:"-" gorm:"-"`
}
func (s *Serializer) Validate() bool {
return true
}
func (s *Serializer) Data() map[string]interface{} {
return map[string]interface{}{}
}
func (s *Serializer) SetError(err string) {
s.errors = map[string][]string{"details": {err}}
}
func (s *Serializer) AddError(field string, err ...string) {
if s.errors == nil {
s.errors = make(map[string][]string)
}
s.errors[field] = append(s.errors[field], err...)
}
func (s *Serializer) Errors() map[string][]string {
return s.errors
}
func (s *Serializer) GetModel() models.BaseModelInterface {
return s.InstanceModel
}
func (s *Serializer) GetInstanceModel() models.BaseModelInterface {
return s.InstanceModel
}
func InitValuesSerializer(serializer SerializersInterface, model models.BaseModelInterface) SerializersInterface {
serializerReflect := reflect.ValueOf(serializer)
if serializerReflect.Kind() == reflect.Ptr {
serializerReflect = serializerReflect.Elem()
}
modelReflect := reflect.ValueOf(model)
if modelReflect.Kind() == reflect.Ptr {
modelReflect = modelReflect.Elem()
}
for i := 0; i < serializerReflect.NumField(); i++ {
serializerValueField := serializerReflect.Field(i)
serializerTypeField := serializerReflect.Type().Field(i)
serializerFieldName := serializerReflect.Type().Field(i).Name
// if serializerValueField.Kind() == reflect.Ptr {
// serializerValueField = serializerValueField.Elem()
// }
tag := serializerTypeField.Tag.Get("serializer")
if tag == "" || strings.Contains(tag, SerializerKeyWriteOnly) {
continue
}
for i := 0; i < modelReflect.NumField(); i++ {
modelValueField := modelReflect.Field(i)
modelTypeField := modelReflect.Type().Field(i)
modelFieldName := modelReflect.Type().Field(i).Name
// if modelValueField.Kind() == reflect.Ptr {
// modelValueField = modelValueField.Elem()
// }
if serializerFieldName == modelFieldName && serializerTypeField.Type.Name() == modelTypeField.Type.Name() {
serializerValueField.Set(modelValueField)
}
}
}
return serializer
}
func InitValuesModel(serializer SerializersInterface) models.BaseModelInterface {
model := serializer.GetModel()
if model == nil {
return nil
}
serializerReflect := reflect.ValueOf(serializer)
modelReflect := reflect.ValueOf(model)
if serializerReflect.Kind() == reflect.Ptr {
serializerReflect = serializerReflect.Elem()
}
if modelReflect.Kind() == reflect.Ptr {
modelReflect = modelReflect.Elem()
}
for i := 0; i < serializerReflect.NumField(); i++ {
valueField := serializerReflect.Field(i)
typeField := serializerReflect.Type().Field(i)
fieldName := serializerReflect.Type().Field(i).Name
tag := typeField.Tag.Get("serializer")
if tag == "" || strings.Contains(tag, SerializerKeyReadOnly) {
continue
}
for i := 0; i < modelReflect.NumField(); i++ {
modelReflectValueField := modelReflect.Field(i)
modelReflectTypeField := modelReflect.Type().Field(i)
modelReflectFieldName := modelReflect.Type().Field(i).Name
if fieldName == modelReflectFieldName && typeField.Type.Name() == modelReflectTypeField.Type.Name() {
modelReflectValueField.Set(valueField)
}
}
}
return model
}
func MarshallSerializer(serializer interface{}) ([]byte, error) {
serializer = fitSerializerData(serializer)
b, err := json.Marshal(serializer)
return b, err
}
func FitSerializerData(serializer interface{}) interface{} {
return fitSerializerData(serializer)
}
func fitSerializerData(serializer interface{}) interface{} {
serializerReflect := reflect.ValueOf(serializer)
if serializerReflect.Kind() == reflect.Ptr {
serializerReflect = serializerReflect.Elem()
}
switch serializerReflect.Kind() {
case reflect.Map:
// mv, ok := serializer.(map[string]interface{})
// if ok {
// for key := range mv {
// mapValueRef := reflect.ValueOf(mv[key])
// if mapValueRef.Kind() == reflect.Ptr {
// mapValueRef = mapValueRef.Elem()
// }
// mv[key] = fitSerializerData(mapValueRef.Interface())
// }
// }
// return mv
for _, k := range serializerReflect.MapKeys() {
item := serializerReflect.MapIndex(k)
fitRefData(item.Elem())
}
case reflect.Array, reflect.Slice:
if serializerReflect.Len() > 0 {
for i := 0; i < serializerReflect.Len(); i++ {
elem := serializerReflect.Index(i)
fitRefData(elem)
}
}
case reflect.Struct:
for i := 0; i < serializerReflect.NumField(); i++ {
serializerValueField := serializerReflect.Field(i)
serializerTypeField := serializerReflect.Type().Field(i)
tag := serializerTypeField.Tag.Get("serializer")
if strings.Contains(tag, SerializerKeyWriteOnly) {
setEmptyValue(serializerValueField)
}
}
}
return serializer
}
func fitRefData(v reflect.Value) {
if v.Kind() == reflect.Ptr {
v = v.Elem()
}
switch v.Kind() {
case reflect.Map:
for _, k := range v.MapKeys() {
item := v.MapIndex(k)
fitRefData(item)
}
case reflect.Array, reflect.Slice:
if v.Len() > 0 {
for i := 0; i < v.Len(); i++ {
elem := v.Index(i)
fitRefData(elem)
}
}
case reflect.Struct:
for i := 0; i < v.NumField(); i++ {
serializerValueField := v.Field(i)
serializerTypeField := v.Type().Field(i)
tag := serializerTypeField.Tag.Get("serializer")
if strings.Contains(tag, SerializerKeyWriteOnly) {
setEmptyValue(serializerValueField)
} else {
if serializerValueField.Kind() == reflect.Struct || serializerValueField.Kind() == reflect.Slice || serializerValueField.Kind() == reflect.Map {
fitRefData(serializerValueField)
}
}
}
}
}