Struct FormValues 

pub struct FormValues { /* private fields */ }

What a form holds, one FormValue per key: a submission its schema read, or a stored record as its record form spells it.

A record form’s hydrate writes one and its parse reads one, as an ActionInput’s parse does. Each key holds the shape its control posts: Text for a scalar control, a List for a multiple choice, and Rows for a repeater.

use tablo_core::FormValues;

let mut values = FormValues::new();
values.insert("title", "Hello");
values.insert("tags", vec!["rust".to_string(), "web".to_string()]);
assert_eq!(values.text("title"), Some("Hello"));
assert_eq!(values.list("tags").map(<[String]>::len), Some(2));
assert_eq!(values.text("tags"), None);

Implementations

impl FormValues

pub fn new() -> Self

No value.

pub fn is_empty(&self) -> bool

Whether no key holds a value.

pub fn len(&self) -> usize

How many keys hold a value.

pub fn get(&self, key: &str) -> Option<&FormValue>

The value key holds.

pub fn text(&self, key: &str) -> Option<&str>

The text key holds; None when it holds none, or a list or rows.

pub fn list(&self, key: &str) -> Option<&[String]>

The list key holds; None when it holds none, or text or rows.

pub fn rows(&self, key: &str) -> Option<&[FormValues]>

The rows key holds; None when it holds none, or text or a list.

pub fn contains(&self, key: &str) -> bool

Whether key holds a value.

pub fn insert( &mut self, key: impl Into<String>, value: impl Into<FormValue>, ) -> Option<FormValue>

Sets key to value, returning what it held.

pub fn remove(&mut self, key: &str) -> Option<FormValue>

Removes key, returning what it held.

pub fn keys(&self) -> impl Iterator<Item = &str>

Every key holding a value, sorted.

pub fn iter(&self) -> impl Iterator<Item = (&str, &FormValue)>

Every key and its value, sorted by key.

Trait Implementations

impl Clone for FormValues

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FormValues

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

Formats the value using the given formatter.

impl Default for FormValues

fn default() -> Self

Returns the “default value” for a type.

impl Eq for FormValues

impl<K: Into<String>, V: Into<FormValue>> Extend<(K, V)> for FormValues

Sets each key in turn: a later value replaces an earlier one.

fn extend<I: IntoIterator<Item = (K, V)>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: T)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<K: Into<String>, V: Into<FormValue>> FromIterator<(K, V)> for FormValues

fn from_iter<I: IntoIterator<Item = (K, V)>>(iter: I) -> Self

Creates a value from an iterator.

impl IntoIterator for FormValues

type Item = (String, FormValue)

The type of the elements being iterated over.

type IntoIter = IntoIter<String, FormValue>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl PartialEq for FormValues

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FormValues