feat(form): add validation for Options

core/form/form_structs.go

@@ -227,6 +227,7 @@ func create(name string, options ...interface{}) *FormField {
 	if field.Input.Type == "select" {
 		field.Marshaller = selectMarshal
 		field.Unmarshaller = selectUnmarshal
+		field.Validators = append(field.Validators, OptionsValidator())
 		field.Input.Template = "form:fields/input.select.tpl"
 	}
 

core/form/form_structs_test.go

@@ -114,7 +114,7 @@ func Test_FormField_Validate(t *testing.T) {
 	assert.Nil(t, result)
 
 	field.Touched = false
-	field.SubmittedValue = nil
+	field.SubmittedValue = "john.doe"
 
 	result = validateForm(form.Fields, form)
 
@@ -490,7 +490,7 @@ func Test_Bind_Form_Select_Invalid_Multiple_Type(t *testing.T) {
 		{Label: "Car", Value: int32(2)},
 		{Label: "Travel", Value: int32(3)},
 		{Label: "Games", Value: int32(4)},
-	}).SetMultiple(true)
+	})
 
 	PrepareForm(form)
 
@@ -511,6 +511,43 @@ func Test_Bind_Form_Select_Invalid_Multiple_Type(t *testing.T) {
 	assert.NotNil(t, err)
 }
 
+func Test_Bind_Form_Select_Invalid_Multiple_Type_Scope(t *testing.T) {
+	user := &TestUser{
+		Name:     "John Doe",
+		Enabled:  true,
+		Hidden:   false,
+		Position: int32(1),
+		Items:    []int32{1, 2},
+	}
+
+	form := CreateForm(user)
+	form.Add("Items", "select", nil, FieldOptions{
+		{Label: "Food", Value: int32(1)},
+		{Label: "Car", Value: int32(2)},
+		{Label: "Travel", Value: int32(3)},
+		{Label: "Games", Value: int32(4)},
+	})
+
+	PrepareForm(form)
+
+	v := url.Values{
+		"Items": []string{"5", "3"}, // 5 is not a valid value
+	}
+
+	err := BindUrlValues(form, v)
+	assert.Nil(t, err)
+
+	err = ValidateForm(form)
+
+	assert.NotNil(t, err)
+	assert.Equal(t, 1, len(form.Get("Items").Errors))
+	assert.Equal(t, "the value is not in the list of options", form.Get("Items").Errors[0])
+
+	err = AttachValues(form)
+
+	assert.NotNil(t, err)
+}
+
 func Test_Bind_Form_Select_Invalid_Type(t *testing.T) {
 	user := &TestUser{
 		Name:     "John Doe",

core/form/form_validator.go

@@ -9,6 +9,7 @@ import (
 	"errors"
 	"net/mail"
 	"net/url"
+	"reflect"
 )
 
 var (
@@ -18,6 +19,7 @@ var (
 	ErrUrlValidator      = errors.New("the value is not a valid url")
 	ErrMaxValidator      = errors.New("the value is too big")
 	ErrMinValidator      = errors.New("the value is too small")
+	ErrSelectValidator   = errors.New("the value is not in the list of options")
 )
 
 type number interface {
@@ -100,7 +102,7 @@ func EmailValidator() Validator {
 		code: "email",
 		validator: func(field *FormField, form *Form) error {
 			if field.SubmittedValue == nil {
-				return ErrEmailValidator
+				return nil
 			}
 
 			if _, err := mail.ParseAddress(field.SubmittedValue.(string)); err != nil {
@@ -116,12 +118,8 @@ func UrlValidator() Validator {
 	return &ValidatorFunc{
 		code: "url",
 		validator: func(field *FormField, form *Form) error {
-			if !field.Touched {
-				return ErrUrlValidator
-			}
-
 			if field.SubmittedValue == nil {
-				return ErrUrlValidator
+				return nil
 			}
 
 			if _, err := url.Parse(field.SubmittedValue.(string)); err != nil {
@@ -138,7 +136,7 @@ func MinValidator[T number](min T) Validator {
 		code: "min",
 		validator: func(field *FormField, form *Form) error {
 			if field.SubmittedValue == nil {
-				return ErrMinValidator
+				return nil
 			}
 
 			if field.SubmittedValue.(T) < min {
@@ -155,7 +153,7 @@ func MaxValidator[T number](max T) Validator {
 		code: "max",
 		validator: func(field *FormField, form *Form) error {
 			if field.SubmittedValue == nil {
-				return ErrMaxValidator
+				return nil
 			}
 
 			if field.SubmittedValue.(T) > max {
@@ -172,7 +170,7 @@ func MaxLengthValidator(max uint32, mode string) Validator {
 		code: "max_length",
 		validator: func(field *FormField, form *Form) error {
 			if field.SubmittedValue == nil {
-				return ErrMaxValidator
+				return nil
 			}
 
 			if mode == "bytes" {
@@ -197,7 +195,7 @@ func MinLengthValidator(min uint32, mode string) Validator {
 		code: "min_length",
 		validator: func(field *FormField, form *Form) error {
 			if field.SubmittedValue == nil {
-				return ErrMaxValidator
+				return nil
 			}
 
 			if mode == "bytes" {
@@ -216,3 +214,47 @@ func MinLengthValidator(min uint32, mode string) Validator {
 		},
 	}
 }
+
+func OptionsValidator() Validator {
+	return &ValidatorFunc{
+		code: "select",
+		validator: func(field *FormField, form *Form) error {
+			if field.SubmittedValue == nil {
+				return nil
+			}
+
+			if !field.Input.Multiple {
+				submittedValue := reflect.ValueOf(field.SubmittedValue)
+				for _, option := range field.Options.(FieldOptions) {
+					optionValue := reflect.ValueOf(option.Value)
+
+					if optionValue.Equal(submittedValue) {
+						return nil
+					}
+				}
+
+				return ErrSelectValidator
+			} else {
+				slice := reflect.ValueOf(field.SubmittedValue)
+				for i := 0; i < slice.Len(); i++ {
+					v := slice.Index(i)
+
+					found := false
+					for _, option := range field.Options.(FieldOptions) {
+						optionValue := reflect.ValueOf(option.Value)
+
+						if optionValue.Equal(v) {
+							found = true
+						}
+					}
+
+					if !found {
+						return ErrSelectValidator
+					}
+				}
+			}
+
+			return nil
+		},
+	}
+}

core/form/form_validator_test.go

@@ -6,7 +6,6 @@
 package form
 
 import (
-	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -79,10 +78,10 @@ func Test_Min_Validator_Float(t *testing.T) {
 }
 
 func Test_MaxLength(t *testing.T) {
-	msg := "abc"
-	fmt.Printf("size: %d\n", len(msg))
-	fmt.Printf("size: %d\n", len([]rune(msg)))
-	fmt.Printf("size: %d\n", uint32(len([]rune(msg))))
+	// msg := "abc"
+	// fmt.Printf("size: %d\n", len(msg))
+	// fmt.Printf("size: %d\n", len([]rune(msg)))
+	// fmt.Printf("size: %d\n", uint32(len([]rune(msg))))
 
 	field := &FormField{
 		Name:    "Name",
@@ -118,10 +117,10 @@ func Test_MaxLength(t *testing.T) {
 }
 
 func Test_MinLength(t *testing.T) {
-	msg := "🇫🇷🇫🇷"
-	fmt.Printf("size: %d\n", len(msg))
-	fmt.Printf("size: %d\n", len([]rune(msg)))
-	fmt.Printf("size: %d\n", uint32(len([]rune(msg))))
+	// msg := "🇫🇷🇫🇷"
+	// fmt.Printf("size: %d\n", len(msg))
+	// fmt.Printf("size: %d\n", len([]rune(msg)))
+	// fmt.Printf("size: %d\n", uint32(len([]rune(msg))))
 
 	field := &FormField{
 		Name:    "Name",