Struct RequiredValidator

pub struct RequiredValidator {
    pub message: Option<String>,
}

Validator that ensures a field is present and not empty

Fields

message: Option<String>

Custom error message

Implementations

impl RequiredValidator

pub fn new() -> Self

Create a new required validator with default message

pub fn with_message(message: impl Into<String>) -> Self

Create a required validator with custom message

Trait Implementations

impl Clone for RequiredValidator

fn clone(&self) -> RequiredValidator

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RequiredValidator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RequiredValidator

fn default() -> Self

Returns the “default value” for a type.

impl ValidationRule for RequiredValidator

fn validate<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, value: &'life1 Value, field: &'life2 str, ) -> Pin<Box<dyn Future<Output = ValidationResult<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Validate a single value

fn rule_name(&self) -> &'static str

Get the validation rule name/type

fn parameters(&self) -> Option<Value>

Get validation rule parameters/configuration as JSON