Enum FieldRole 

pub enum FieldRole {
    Primary,
    Secondary,
    Badge,
    Timestamp,
    DetailOnly,
    Hidden,
}

How a field participates in the visual layout of a generated admin view.

The schema gives us names and types; it does not tell us what matters visually. FieldRole is where that intent is recorded, once, in a ViewSpec.

Variants

Primary

The strongest field. Becomes the row title in list/card modes.

Secondary

Muted supporting information shown next to the primary.

Badge

Rendered as a pill/chip, usually an enum or status.

Timestamp

A date/time field, formatted consistently and kept visually quiet.

DetailOnly

Only shown on the detail page, never in list/table/card.

Hidden

Never rendered anywhere in the visible UI.

Implementations

impl FieldRole

pub fn shows_in_list(self) -> bool

Whether a field with this role should appear in list/table/card views.

pub fn reaches_template(self) -> bool

Whether the field should reach the template context at all. Hidden fields are stripped before rendering so they never leak into HTML.

pub fn slug(self) -> &'static str

The stable slug used in forms and serde, e.g. detail_only. Matches the snake_case serde representation.

pub fn from_slug(slug: &str) -> Option<Self>

Parse a role slug coming from the designer form. Unknown values return None so the caller can keep the field’s previous role.

pub fn all() -> &'static [FieldRole]

Every role and its slug, in display order — for building the role <select> in the designer without hard-coding the list in a template.

Trait Implementations

impl Clone for FieldRole

fn clone(&self) -> FieldRole

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FieldRole

impl Debug for FieldRole

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FieldRole

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FieldRole

impl PartialEq for FieldRole

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for FieldRole

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 FieldRole