Enum ModelError 

pub enum ModelError {
    InvalidTransition {
        item_id: String,
        from: String,
        to: String,
    },
    ItemNotFound {
        item_id: String,
    },
    CircularContainment {
        cycle: Vec<String>,
    },
    InvalidItemId {
        raw: String,
    },
    AmbiguousId {
        prefix: String,
        count: usize,
        matches: Vec<String>,
    },
    InvalidEnumValue {
        field: String,
        value: String,
        valid_values: String,
    },
    DuplicateItem {
        item_id: String,
    },
    CycleDetected {
        cycle: Vec<String>,
    },
}

Errors related to domain model violations.

Variants

InvalidTransition

An invalid state transition was attempted.

Fields

item_id: String

The item being transitioned.

from: String

Current state.

to: String

Attempted target state.

ItemNotFound

The referenced item does not exist.

Fields

item_id: String

The ID that was not found.

CircularContainment

Moving the item would create a circular containment chain.

Fields

cycle: Vec<String>

The IDs forming the cycle.

InvalidItemId

The item ID format is invalid.

Fields

raw: String

The raw string that failed validation.

AmbiguousId

The ID prefix matches multiple items.

Fields

prefix: String

The ambiguous prefix.

count: usize

Number of matching items.

matches: Vec<String>

The matching item IDs (up to a reasonable limit).

InvalidEnumValue

An enum value (kind, state, urgency, size) is invalid.

Fields

field: String

Which field (e.g., “kind”, “state”, “urgency”, “size”).

value: String

The invalid value.

valid_values: String

Comma-separated list of valid values.

DuplicateItem

A duplicate item was detected.

Fields

item_id: String

The duplicate item ID.

CycleDetected

A dependency cycle was detected.

Fields

cycle: Vec<String>

The IDs forming the cycle.

Implementations

impl ModelError

pub const fn error_code(&self) -> &'static str

Machine-readable error code.

pub fn suggestion(&self) -> String

Human-readable suggestion.

Trait Implementations

impl Debug for ModelError

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

Formats the value using the given formatter.

impl Display for ModelError

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

Formats the value using the given formatter.

impl Error for ModelError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<ModelError> for BonesError

fn from(source: ModelError) -> Self

Converts to this type from the input type.