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Validator

Struct Validator 

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pub struct Validator { /* private fields */ }
Expand description

A set of fields, their rules, and the values to run them against.

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impl Validator

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pub fn new(input: impl Into<Input>) -> Self

Validate a bag of values — a JSON body, a form, or an Input built by hand.

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pub fn from_request(request: &mut Request) -> Self

Validate a request, remembering whether the client wants JSON back so the failure response can be negotiated later, when the request is gone.

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pub fn rule(self, field: impl Into<String>, rules: impl IntoRules) -> Self

Add one field’s rules, as a Laravel string or as a built rule set.

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pub fn rules(self, specs: &[(&str, &str)]) -> Self

Add every field at once: .rules(&[("email", "required|email")]).

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

Override one message. The key is "field.rule" or just "rule".

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pub fn attribute( self, field: impl Into<String>, label: impl Into<String>, ) -> Self

Rename a field for display: .attribute("dob", "date of birth").

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pub fn with_messages(self, messages: Messages) -> Self

Replace the whole message bag, for an application that keeps its own.

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pub fn with_json(self, wants_json: bool) -> Self

Force the failure response to be JSON (or not), overriding what the request negotiated.

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pub fn input(&self) -> &Input

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pub fn errors(&self) -> Errors

Every message the rules produce. Empty when the input is valid.

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pub fn passes(&self) -> bool

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pub fn fails(&self) -> bool

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pub fn validate(&self) -> Result<Validated, Errors>

The validated subset of the input, or every message that failed.

Trait Implementations§

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impl Clone for Validator

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fn clone(&self) -> Validator

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for Validator

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

Formats the value using the given formatter. Read more
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impl Default for Validator

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fn default() -> Validator

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.