1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
package gorm
import (
"database/sql"
"database/sql/driver"
"errors"
"fmt"
"reflect"
)
// Field model field definition
type Field struct {
*StructField
IsBlank bool
Field reflect.Value
}
// Set set a value to the field
func (field *Field) Set(value interface{}) (err error) {
if !field.Field.IsValid() {
return errors.New("field value not valid")
}
if !field.Field.CanAddr() {
return ErrUnaddressable
}
reflectValue, ok := value.(reflect.Value)
if !ok {
reflectValue = reflect.ValueOf(value)
}
fieldValue := field.Field
if reflectValue.IsValid() {
if reflectValue.Type().ConvertibleTo(fieldValue.Type()) {
fieldValue.Set(reflectValue.Convert(fieldValue.Type()))
} else {
if fieldValue.Kind() == reflect.Ptr {
if fieldValue.IsNil() {
fieldValue.Set(reflect.New(field.Struct.Type.Elem()))
}
fieldValue = fieldValue.Elem()
}
if reflectValue.Type().ConvertibleTo(fieldValue.Type()) {
fieldValue.Set(reflectValue.Convert(fieldValue.Type()))
} else if scanner, ok := fieldValue.Addr().Interface().(sql.Scanner); ok {
v := reflectValue.Interface()
if valuer, ok := v.(driver.Valuer); ok {
if v, err = valuer.Value(); err == nil {
err = scanner.Scan(v)
}
} else {
err = scanner.Scan(v)
}
} else {
err = fmt.Errorf("could not convert argument of field %s from %s to %s", field.Name, reflectValue.Type(), fieldValue.Type())
}
}
} else {
field.Field.Set(reflect.Zero(field.Field.Type()))
}
field.IsBlank = isBlank(field.Field)
return err
}
|
