48 lines
1.5 KiB
Go
48 lines
1.5 KiB
Go
package validation
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import (
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"regexp"
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"strings"
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"unicode"
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"github.com/go-playground/validator/v10"
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)
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// RegisterCustomValidators registers custom validation rules
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func RegisterCustomValidators(validate *validator.Validate) {
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validate.RegisterValidation("nospace", validateNoSpace)
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validate.RegisterValidation("alphanumunderscore", validateAlphaNumUnderscore)
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validate.RegisterValidation("alphaspace", validateAlphaSpace) // Add this
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validate.RegisterValidation("alphanum", validateAlphaNum) // Add this
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}
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// validateNoSpace checks that the field contains no spaces
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func validateNoSpace(fl validator.FieldLevel) bool {
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value := fl.Field().String()
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return !strings.Contains(value, " ")
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}
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// validateAlphaNumUnderscore allows alphanumeric characters and underscores only
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func validateAlphaNumUnderscore(fl validator.FieldLevel) bool {
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value := fl.Field().String()
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matched, _ := regexp.MatchString("^[a-zA-Z0-9_]+$", value)
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return matched
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}
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// validateAlphaSpace allows alphabetic characters and spaces only (for names)
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func validateAlphaSpace(fl validator.FieldLevel) bool {
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value := fl.Field().String()
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for _, char := range value {
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if !unicode.IsLetter(char) && char != ' ' {
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return false
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}
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}
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return true
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}
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// validateAlphaNum allows alphanumeric characters only
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func validateAlphaNum(fl validator.FieldLevel) bool {
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value := fl.Field().String()
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matched, _ := regexp.MatchString("^[a-zA-Z0-9]+$", value)
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return matched
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} |