Struct ColumnIntent 

pub struct ColumnIntent {
    pub column: String,
    pub required: bool,
    pub allowed: Vec<String>,
    pub min: Option<String>,
    pub max: Option<String>,
    pub number: Option<NumberReading>,
}

What one column must hold. An empty intent declares nothing.

Fields

column: String

required: bool

Every row has a value.

allowed: Vec<String>

The values the column may hold, as typed; empty for any.

min: Option<String>

The lowest value allowed, as typed; a number, a date or a date and time.

max: Option<String>

number: Option<NumberReading>

Text read as a number: a value that does not read is counted, and the range compares the number.

Implementations

impl ColumnIntent

pub fn new(column: &str) -> Self

pub fn is_empty(&self) -> bool

pub fn range_label(&self) -> Option<String>

The range in words: 0 to 100, at least 0, at most 2024-12-31.

pub fn allowed_label(&self, shown: usize) -> String

The allowed set as typed, cut to shown values: open, closed +3 more.

pub fn rules(&self) -> Vec<String>

Each rule in a few words: required, one of 3, 0 to 100, read as decimal.

Trait Implementations

impl Clone for ColumnIntent

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 ColumnIntent

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

Formats the value using the given formatter.

impl Default for ColumnIntent

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ColumnIntent

impl Hash for ColumnIntent

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ColumnIntent

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ColumnIntent