Struct PrefixRule 

pub struct PrefixRule {
    pub prefix: String,
    pub case_insensitive: bool,
    pub message: Option<String>,
}

Prefix validation rule - string must start with a prefix.

Fields

prefix: String

The prefix to match

case_insensitive: bool

Case insensitive matching

message: Option<String>

Custom error message

Implementations

impl PrefixRule

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

Create a new prefix rule.

pub fn case_insensitive(self) -> Self

Enable case-insensitive matching.

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

Set custom error message.

Trait Implementations

impl Clone for PrefixRule

fn clone(&self) -> PrefixRule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrefixRule

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

Formats the value using the given formatter.

impl Rule<String> for PrefixRule

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<str> for PrefixRule

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).