orm fix for support custom field

@@ -97,10 +97,6 @@ func (e *BooleanField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *BooleanField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(BooleanField)
 
 // A string field
@@ -139,10 +135,6 @@ func (e *CharField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *CharField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(CharField)
 
 // A date, represented in go by a time.Time instance.
@@ -196,10 +188,6 @@ func (e *DateField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *DateField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(DateField)
 
 // A date, represented in go by a time.Time instance.
@@ -243,10 +231,6 @@ func (e *DateTimeField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *DateTimeField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(DateTimeField)
 
 // A floating-point number represented in go by a float32 value.
@@ -289,10 +273,6 @@ func (e *FloatField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *FloatField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(FloatField)
 
 // -32768 to 32767
@@ -333,10 +313,6 @@ func (e *SmallIntegerField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *SmallIntegerField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(SmallIntegerField)
 
 // -2147483648 to 2147483647
@@ -377,10 +353,6 @@ func (e *IntegerField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *IntegerField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(IntegerField)
 
 // -9223372036854775808 to 9223372036854775807.
@@ -421,10 +393,6 @@ func (e *BigIntegerField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *BigIntegerField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(BigIntegerField)
 
 // 0 to 65535
@@ -465,10 +433,6 @@ func (e *PositiveSmallIntegerField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *PositiveSmallIntegerField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(PositiveSmallIntegerField)
 
 // 0 to 4294967295
@@ -509,10 +473,6 @@ func (e *PositiveIntegerField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *PositiveIntegerField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(PositiveIntegerField)
 
 // 0 to 18446744073709551615
@@ -553,10 +513,6 @@ func (e *PositiveBigIntegerField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *PositiveBigIntegerField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(PositiveBigIntegerField)
 
 // A large text field.
@@ -592,8 +548,4 @@ func (e *TextField) RawValue() interface{} {
 	return e.Value()
 }
 
-func (e *TextField) Clean() error {
-	return nil
-}
-
 var _ Fielder = new(TextField)

@@ -128,11 +128,15 @@ func newFieldInfo(mi *modelInfo, field reflect.Value, sf reflect.StructField) (f
 
 	fi = new(fieldInfo)
 
-	if field.Kind() != reflect.Ptr && field.Kind() != reflect.Slice && field.CanAddr() {
+	addrField = field
+	if field.CanAddr() && field.Kind() != reflect.Ptr {
 		addrField = field.Addr()
-	} else {
+		if _, ok := addrField.Interface().(Fielder); !ok {
+			if field.Kind() == reflect.Slice {
 				addrField = field
 			}
+		}
+	}
 
 	parseStructTag(sf.Tag.Get(defaultStructTagName), &attrs, &tags)
 

@@ -16,7 +16,6 @@ type Fielder interface {
 	FieldType() int
 	SetRaw(interface{}) error
 	RawValue() interface{}
-	Clean() error
 }
 
 type Ormer interface {
@@ -84,17 +83,6 @@ type RawSeter interface {
 	Prepare() (RawPreparer, error)
 }
 
-type IFieldError interface {
-	Name() string
-	Error() error
-}
-
-type IFieldErrors interface {
-	Get(string) IFieldError
-	Set(string, IFieldError)
-	List() []IFieldError
-}
-
 type stmtQuerier interface {
 	Close() error
 	Exec(args ...interface{}) (sql.Result, error)