The validator work

Tests are passed

util/validator/validator.go

@@ -9,6 +9,7 @@ import (
 	"github.com/NyaaPantsu/nyaa/util/log"
 	msg "github.com/NyaaPantsu/nyaa/util/messages"
 	"github.com/go-playground/validator"
+	"strconv"
 )
 
 var validate *validator.Validate
@@ -16,6 +17,7 @@ var validate *validator.Validate
 func init() {
 	validate = validator.New()
 	validate.RegisterValidation("isutf", IsUTFLetterNumericValidator)
+	validate.RegisterValidation("default", DefaultValidator)
 }
 
 // ValidateForm : Check if a form is valid according to its tags
@@ -135,3 +137,31 @@ func IsUTFLetterNumericValidator(fl validator.FieldLevel) bool {
 	value := fl.Field().String() // value
 	return IsUTFLetterNumeric(value)
 }
+
+func DefaultValidator(fl validator.FieldLevel) bool {
+	switch fl.Field().Kind() {
+	case reflect.String:
+		if len(fl.Field().String()) == 0 {
+			fl.Field().SetString(fl.Param())
+		}
+	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
+		if fl.Field().Int() == 0 {
+			number, err := strconv.Atoi(fl.Param())
+			if err != nil {
+				fmt.Printf("Couldn't convert default value for field %s", fl.FieldName())
+				return false
+			}
+			fl.Field().SetInt(int64(number))
+		}
+	case reflect.Float32, reflect.Float64:
+		if fl.Field().Float() == 0 {
+			number, err := strconv.ParseFloat(fl.Param(), 64)
+			if err != nil {
+				fmt.Printf("Couldn't convert default value for field %s", fl.FieldName())
+				return false
+			}
+			fl.Field().SetFloat(number)
+		}
+	}
+	return true
+}

util/validator/validator_test.go

@@ -19,9 +19,9 @@ var _ = func() (_ struct{}) {
 }()
 
 type TestForm struct {
-	DefaultVal  int    `form:"default" default:"3" notnull:"true"`
-	ConfirmVal  string `form:"confirm" needed:"true" equalInput:"ConfirmeVal" len_min:"7" len_max:"8"`
-	ConfirmeVal string `form:"confirme" needed:"true"`
+	DefaultVal  int    `validate:"default=3,required"`
+	ConfirmVal  string `validate:"eqfield=ConfirmeVal,min=7,max=8,required"`
+	ConfirmeVal string `validate:"required"`
 }
 
 func TestValidateForm(t *testing.T) {
@@ -48,25 +48,25 @@ func TestValidateForm(t *testing.T) {
 	testform.ConfirmVal = "test"
 	testform.ConfirmeVal = "test"
 	ValidateForm(&testform, messages)
-	if len(messages.GetErrors("confirm")) == 0 {
+	if len(messages.GetErrors("ConfirmVal")) == 0 {
 		t.Errorf("No errors on minimal length test when parsing invalid form: %v", testform)
 	}
 	messages.ClearAllErrors()
 	testform.ConfirmVal, testform.ConfirmeVal = "testing", "testind"
 	ValidateForm(&testform, messages)
-	if len(messages.GetErrors("confirm")) == 0 {
+	if len(messages.GetErrors("ConfirmVal")) == 0 {
 		t.Errorf("No errors on equal test when parsing invalid form: %v", testform)
 	}
 	messages.ClearAllErrors()
 	testform.ConfirmVal, testform.ConfirmeVal = "", "testing"
 	ValidateForm(&testform, messages)
-	if len(messages.GetErrors("confirm")) == 0 {
+	if len(messages.GetErrors("ConfirmVal")) == 0 {
 		t.Errorf("No errors on needed test when parsing invalid form: %v", testform)
 	}
 	messages.ClearAllErrors()
 	testform.ConfirmVal, testform.ConfirmeVal = "azertyuid", "azertyuid"
 	ValidateForm(&testform, messages)
-	if len(messages.GetErrors("confirm")) == 0 {
+	if len(messages.GetErrors("ConfirmVal")) == 0 {
 		t.Errorf("No errors on maximal length test when parsing invalid form %v", testform)
 	}
 	messages.ClearAllErrors()