Struct validators::prelude::validators_prelude::ValueField
source · Expand description
A form field with a string value.
Rocket preprocesses all form fields into either ValueField
s or
DataField
s. All fields from url-encoded forms, and fields without
Content-Types from multipart forms, are preprocessed as a ValueField
.
Fields
name: NameView<'r>
The (decoded) name of the form field.
value: &'r str
The (decoded) value of the form field.
Implementations
sourceimpl<'v> ValueField<'v>
impl<'v> ValueField<'v>
sourcepub fn parse(field: &'v str) -> ValueField<'v>
pub fn parse(field: &'v str) -> ValueField<'v>
Parse a field string, where both the key and value are assumed to be
URL-decoded while preserving the =
delimiter, into a ValueField
.
This implements 3.2, 3.3 of section 5.1 of the WHATWG living standard.
Example
use rocket::form::ValueField;
let parsed = ValueField::parse("a cat=an A+ pet");
assert_eq!(parsed.name, "a cat");
assert_eq!(parsed.value, "an A+ pet");
let parsed = ValueField::parse("a cat is an A+ pet");
assert_eq!(parsed.name, "a cat is an A+ pet");
assert_eq!(parsed.value, "");
let parsed = ValueField::parse("cat.food=yum?");
assert_eq!(parsed.name, "cat");
assert_eq!(parsed.name.source(), "cat.food");
assert_eq!(parsed.value, "yum?");
sourcepub fn from_value(value: &'v str) -> ValueField<'v>
pub fn from_value(value: &'v str) -> ValueField<'v>
Create a ValueField
from a value, which is assumed to be URL-decoded.
The field name
will be empty.
This is equivalent to ValueField::from(("", value))
. To create a
ValueField
from both a name
and a value
, use
ValueField::from((name, value))
.
Example
use rocket::form::ValueField;
let parsed = ValueField::from_value("A+=kitten");
assert_eq!(parsed.name, "");
assert_eq!(parsed.value, "A+=kitten");
sourcepub fn shift(self) -> ValueField<'v>
pub fn shift(self) -> ValueField<'v>
Shift the name
of self
and return self
with the shfited name
.
See NameView::shift()
for the details on name “shifting”.
Example
use rocket::form::ValueField;
let parsed = ValueField::parse("cat.food=yum?");
assert_eq!(parsed.name, "cat");
assert_eq!(parsed.name.source(), "cat.food");
assert_eq!(parsed.name.key_lossy(), "cat");
let shifted = parsed.shift();
assert_eq!(shifted.name, "cat.food");
assert_eq!(shifted.name.key_lossy(), "food");
sourcepub fn unexpected(&self) -> Error<'v>
pub fn unexpected(&self) -> Error<'v>
Creates a complete unexpected value field Error
from self
.
The error will have the following properties:
kind
:ErrorKind::Unexpected
name
:self.name.source()
value
:self.value
entity
:Entity::ValueField
Example
use rocket::form::ValueField;
use rocket::form::error::{ErrorKind, Entity};
let field = ValueField::parse("cat.food=yum?");
let error = field.unexpected();
assert_eq!(error.name.as_ref().unwrap(), "cat.food");
assert_eq!(error.value.as_ref().unwrap(), "yum?");
assert_eq!(error.kind, ErrorKind::Unexpected);
assert_eq!(error.entity, Entity::ValueField);
sourcepub fn missing(&self) -> Error<'v>
pub fn missing(&self) -> Error<'v>
Creates a complete mising value field Error
from self
.
The error will have the following properties:
kind
:ErrorKind::Missing
name
:self.name.source()
value
:self.value
entity
:Entity::ValueField
Example
use rocket::form::ValueField;
use rocket::form::error::{ErrorKind, Entity};
let field = ValueField::parse("cat.food=yum?");
let error = field.missing();
assert_eq!(error.name.as_ref().unwrap(), "cat.food");
assert_eq!(error.value.as_ref().unwrap(), "yum?");
assert_eq!(error.kind, ErrorKind::Missing);
assert_eq!(error.entity, Entity::ValueField);
Trait Implementations
sourceimpl<'r> Clone for ValueField<'r>
impl<'r> Clone for ValueField<'r>
sourcefn clone(&self) -> ValueField<'r>
fn clone(&self) -> ValueField<'r>
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresourceimpl<'r> Debug for ValueField<'r>
impl<'r> Debug for ValueField<'r>
sourceimpl<'a> From<(&'a str, &'a str)> for ValueField<'a>
impl<'a> From<(&'a str, &'a str)> for ValueField<'a>
sourcefn from((&'a str, &'a str)) -> ValueField<'a>
fn from((&'a str, &'a str)) -> ValueField<'a>
sourceimpl<'a, 'b> PartialEq<ValueField<'b>> for ValueField<'a>
impl<'a, 'b> PartialEq<ValueField<'b>> for ValueField<'a>
sourcefn eq(&self, other: &ValueField<'b>) -> bool
fn eq(&self, other: &ValueField<'b>) -> bool
Auto Trait Implementations
impl<'r> RefUnwindSafe for ValueField<'r>
impl<'r> Send for ValueField<'r>
impl<'r> Sync for ValueField<'r>
impl<'r> Unpin for ValueField<'r>
impl<'r> UnwindSafe for ValueField<'r>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<T> IntoCollection<T> for T
impl<T> IntoCollection<T> for T
fn into_collection<A>(self) -> SmallVec<A>where
A: Array<Item = T>,
fn into_collection<A>(self) -> SmallVec<A>where
A: Array<Item = T>,
self
into a collection.