Enum TodoError 

pub enum TodoError {
    Database(String),
    Json(String),
    NotFound(Uuid),
    DependencyCycle {
        parent_id: Uuid,
        child_id: Uuid,
    },
    SelfDependency(Uuid),
}

Errors that can occur while reading or writing session todos.

Variants

Database(String)

A database operation failed.

Json(String)

JSON metadata could not be serialized or parsed.

NotFound(Uuid)

A todo id did not exist in the target session.

DependencyCycle

A dependency would create a cycle.

Fields

parent_id: Uuid

Parent todo id from the attempted dependency edge.

child_id: Uuid

Child todo id from the attempted dependency edge.

SelfDependency(Uuid)

A todo cannot depend on itself.

Trait Implementations

impl Debug for TodoError

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

Formats the value using the given formatter.

impl Display for TodoError

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

Formats the value using the given formatter.

impl Error for TodoError

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<Error> for TodoError

fn from(err: Error) -> Self

Converts to this type from the input type.

impl From<Error> for TodoError

fn from(err: Error) -> Self

Converts to this type from the input type.