Enum Rule 

pub enum Rule {
    Required,
    Unique,
    Email,
    MinLen(usize),
    MaxLen(usize),
    Min(i64),
    Max(i64),
    Scale(u8),
    Precision(u8),
    Mask(&'static str),
    Embed,
    Format,
    Custom,
    Line {
        row: u32,
        field: &'static str,
    },
}

Field validation rule.

Variants

Required

Unique

Email

MinLen(usize)

MaxLen(usize)

Min(i64)

Max(i64)

Scale(u8)

Most decimals of a Decimal field (#[rule(scale = 4)]); 2 without the rule.

Precision(u8)

Most digits of a Decimal field, decimals included (#[rule(precision = 12)]); 18 without the rule. With the scale it gives the column type, NUMERIC(12, 4).

Mask(&'static str)

The raw value fills a pattern (#[rule(mask = "(999) 999 99 99")]): 9 a digit, a a letter, A a letter written upper case, * a letter or digit, a backslash makes the next character literal. Literals are shown while typing but never stored. See crate::ui::mask_fits.

Embed

An address to embed with crate::ui::Embed (#[rule(embed)] on a String): an https URL in the form crate::embed_url gives, on a host of the app’s frame-src (App::csp). Forms take pasted embed code too and keep only its canonical address.

Format

The submitted value could not be read as the field’s type.

Custom

Raised by a model level validate = ... function.

Line

A problem in one cell of a lines field: the line (from 0) and the column.

Fields

row: u32

field: &'static str

Trait Implementations

impl Clone for Rule

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Rule

impl Debug for Rule

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

Formats the value using the given formatter.

impl Eq for Rule

impl PartialEq for Rule

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Rule

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Rule