Struct ContextualRule 

pub struct ContextualRule<T>
where
    T: ?Sized,
{
    pub rule_name: String,
    pub condition: Option<ContextualCondition>,
    pub validator: Option<ContextualValidator<T>>,
    pub message: Option<String>,
}

Fields

rule_name: String

Rule name

condition: Option<ContextualCondition>

Condition function - when to apply validation

validator: Option<ContextualValidator<T>>

Validation function

message: Option<String>

Custom error message

Implementations

impl<T: ?Sized> ContextualRule<T>

pub fn new(name: impl Into<String>) -> Self

Create a new contextual rule.

pub fn when<F>(self, condition: F) -> Self

where F: Fn(&ValidationContext) -> bool + Send + Sync + 'static,

Set condition for when to apply validation.

pub fn validate_with<F>(self, validator: F) -> Self

where F: Fn(&T, &ValidationContext) -> bool + Send + Sync + 'static,

Set the validation function.

pub fn message(self, msg: impl Into<String>) -> Self

Set custom error message.

Trait Implementations

impl<T: ?Sized> Debug for ContextualRule<T>

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

Formats the value using the given formatter.

impl<T: ?Sized + 'static> Rule<T> for ContextualRule<T>

fn validate(&self, value: &T, ctx: &ValidationContext) -> ValidationResult<()>

Validate the value.

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

Get the rule name for error reporting.

fn default_message(&self) -> String

Get the default error message.

fn validate_at( &self, value: &T, path: &FieldPath, ctx: &ValidationContext, ) -> Result<(), ValidationErrors>

Validate the value with a field path for error reporting.

fn error_code(&self) -> String

Get the error code.

fn is_transform(&self) -> bool

Check if this rule is a transformation (not validation).