Enum Rule 

pub enum Rule {
    Required,
    Nullable,
    String,
    Integer,
    Numeric,
    Boolean,
    Email,
    Url,
    Min(f64),
    Max(f64),
    Between(f64, f64),
    Size(f64),
    In(Vec<String>),
    NotIn(Vec<String>),
    Confirmed,
    Same(String),
    Different(String),
    Alpha,
    AlphaNum,
    AlphaDash,
    StartsWith(Vec<String>),
    EndsWith(Vec<String>),
    Date,
    Uuid,
    Array,
}

One validation rule, with its parameters already parsed.

This is the single internal representation: the string parser and the builder are two front doors onto the same enum.

Variants

Required

The field must be present and not blank.

Nullable

An explicit null is allowed, and skips the remaining rules.

String

Integer

Numeric

Boolean

Email

Url

Min(f64)

Minimum length for a string, value for a number, item count for an array.

Max(f64)

Maximum length for a string, value for a number, item count for an array.

Between(f64, f64)

Inclusive range, measured the same way as Rule::Min.

Size(f64)

Exact length, value, or item count.

In(Vec<String>)

NotIn(Vec<String>)

Confirmed

A <field>_confirmation field must be present and equal.

Same(String)

Must equal another field.

Different(String)

Must differ from another field.

Alpha

AlphaNum

AlphaDash

StartsWith(Vec<String>)

EndsWith(Vec<String>)

Date

A YYYY-MM-DD calendar date.

Uuid

Array

Implementations

impl Rule

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

The name this rule is written as in the string syntax, which is also the key used to look up its message and any per-field override.

pub fn required() -> Rules

pub fn nullable() -> Rules

pub fn string() -> Rules

pub fn integer() -> Rules

pub fn numeric() -> Rules

pub fn boolean() -> Rules

pub fn email() -> Rules

pub fn url() -> Rules

pub fn min(bound: impl Into<f64>) -> Rules

pub fn max(bound: impl Into<f64>) -> Rules

pub fn between(low: impl Into<f64>, high: impl Into<f64>) -> Rules

pub fn size(exact: impl Into<f64>) -> Rules

pub fn one_of<S: Into<String>>(values: impl IntoIterator<Item = S>) -> Rules

The builder spelling of in:a,b,c; in is a Rust keyword.

pub fn not_in<S: Into<String>>(values: impl IntoIterator<Item = S>) -> Rules

pub fn confirmed() -> Rules

pub fn same(other: impl Into<String>) -> Rules

pub fn different(other: impl Into<String>) -> Rules

pub fn alpha() -> Rules

pub fn alpha_num() -> Rules

pub fn alpha_dash() -> Rules

pub fn starts_with<S: Into<String>>( prefixes: impl IntoIterator<Item = S>, ) -> Rules

pub fn ends_with<S: Into<String>>( suffixes: impl IntoIterator<Item = S>, ) -> Rules

pub fn date() -> Rules

pub fn uuid() -> Rules

pub fn array() -> Rules

Trait Implementations

impl Clone for Rule

fn clone(&self) -> Rule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rule

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

Formats the value using the given formatter.

impl FromIterator<Rule> for Rules

fn from_iter<I: IntoIterator<Item = Rule>>(rules: I) -> Self

Creates a value from an iterator.

impl IntoRules for Rule

fn into_rules(self) -> Rules

impl PartialEq for Rule

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Rule