Struct AllowedValuesRule 

pub struct AllowedValuesRule<T> {
    pub values: Vec<T>,
    pub message: Option<String>,
}

Allowed values validation rule - field must be one of the specified values.

Example

use skp_validator_rules::comparison::allowed_values::AllowedValuesRule;
use skp_validator_core::{Rule, ValidationContext};

let rule = AllowedValuesRule::new(vec!["active", "pending", "disabled"]);
let ctx = ValidationContext::default();

assert!(rule.validate("active", &ctx).is_ok());
assert!(rule.validate("unknown", &ctx).is_err());

Fields

values: Vec<T>

The allowed values

message: Option<String>

Custom error message

Implementations

impl<T> AllowedValuesRule<T>

pub fn new(values: Vec<T>) -> Self

Create a new allowed values rule.

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

Set custom error message.

impl AllowedValuesRule<String>

pub fn from_strs(values: &[&str]) -> Self

Create from string slices.

Trait Implementations

impl<T: Clone> Clone for AllowedValuesRule<T>

fn clone(&self) -> AllowedValuesRule<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for AllowedValuesRule<T>

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

Formats the value using the given formatter.

impl Rule<String> for AllowedValuesRule<String>

fn validate( &self, value: &String, 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).

impl Rule<f64> for AllowedValuesRule<f64>

fn validate( &self, value: &f64, _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).

impl Rule<i32> for AllowedValuesRule<i32>

fn validate( &self, value: &i32, _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).

impl Rule<i64> for AllowedValuesRule<i64>

fn validate( &self, value: &i64, _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).

impl Rule<str> for AllowedValuesRule<&str>

fn validate( &self, value: &str, _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).

impl Rule<str> for AllowedValuesRule<String>

fn validate( &self, value: &str, _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).

impl Rule<u32> for AllowedValuesRule<u32>

fn validate( &self, value: &u32, _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).

impl Rule<u64> for AllowedValuesRule<u64>

fn validate( &self, value: &u64, _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).