Struct ConditionalBehavior 

#[non_exhaustive]
pub struct ConditionalBehavior {
    pub rules: Vec<ConditionalRule>,
    pub default_behavior: String,
}

The set of conditional rules that determine a field's resolved requirement based on the values of other fields in the same registration form. Attached to fields whose FieldRequirement is CONDITIONAL.

Evaluation proceeds top-to-bottom through Rules. The first rule whose conditions all evaluate to true wins and its behavior is returned. If no rule matches, the DefaultBehavior is returned.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

rules: Vec<ConditionalRule>

An ordered list of conditional rules. Rules are evaluated top-to-bottom and the first rule whose conditions all evaluate to true determines the field's behavior. Rules whose conditions do not all match are skipped and evaluation continues to the next rule.

default_behavior: String

The field behavior that applies when no conditional rule in Rules matches. Valid values are REQUIRED, OPTIONAL, and DISALLOWED.

Implementations

impl ConditionalBehavior

pub fn rules(&self) -> &[ConditionalRule]

An ordered list of conditional rules. Rules are evaluated top-to-bottom and the first rule whose conditions all evaluate to true determines the field's behavior. Rules whose conditions do not all match are skipped and evaluation continues to the next rule.

pub fn default_behavior(&self) -> &str

The field behavior that applies when no conditional rule in Rules matches. Valid values are REQUIRED, OPTIONAL, and DISALLOWED.

impl ConditionalBehavior

pub fn builder() -> ConditionalBehaviorBuilder

Creates a new builder-style object to manufacture ConditionalBehavior.

Trait Implementations

impl Clone for ConditionalBehavior

fn clone(&self) -> ConditionalBehavior

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConditionalBehavior

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

Formats the value using the given formatter.

impl PartialEq for ConditionalBehavior

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ConditionalBehavior