Struct RuleError 

pub struct RuleError {
    pub code: String,
    pub message: String,
    pub params: HashMap<String, Value>,
}

Error from a single validation rule.

Fields

code: String

The validation rule code (e.g., “email”, “length”, “range”)

message: String

Human-readable error message

params: HashMap<String, Value>

Optional parameters for message interpolation

Implementations

impl RuleError

pub fn new(code: impl Into<String>, message: impl Into<String>) -> Self

Create a new rule error.

pub fn with_params( code: impl Into<String>, message: impl Into<String>, params: HashMap<String, Value>, ) -> Self

Create a rule error with parameters.

pub fn param(self, key: impl Into<String>, value: impl Serialize) -> Self

Add a parameter to the error.

pub fn interpolate_message(&self) -> String

Interpolate parameters into the message.

Replaces {param_name} placeholders with actual values.

Trait Implementations

impl Clone for RuleError

fn clone(&self) -> RuleError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RuleError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RuleError

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for RuleError

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

Formats the value using the given formatter.

impl Error for RuleError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for RuleError

fn eq(&self, other: &RuleError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for RuleError

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RuleError