Enum JournalEntryError 

pub enum JournalEntryError {
    NoLines,
    Unbalanced {
        debits: Decimal,
        credits: Decimal,
        difference: Decimal,
        tolerance: Decimal,
    },
    LineHasBothDebitAndCredit,
    LineHasNeitherDebitNorCredit,
    NegativeAmount,
    MissingAccountCode,
    InvalidJournalType(String),
    NonPositiveDebit,
    NonPositiveCredit,
    CrossOrgLine,
}

Domain-typed validation error for journal entries (double-entry bookkeeping).

Pure domain type — no infrastructure/application dependency (hexagonal purity). Follows the codebase precedent ProxyValidationError (vote.rs): the entity returns its own typed error; the application layer maps it to AppError (see impl From<JournalEntryError> for AppError) so a malformed entry surfaces as a 400 validation error, not a 500 Internal (#433 / WP-A3).

Variants

NoLines

Entry has no lines.

Unbalanced

Sum of debits ≠ sum of credits beyond tolerance (double-entry rule).

Fields

debits: Decimal

credits: Decimal

difference: Decimal

tolerance: Decimal

LineHasBothDebitAndCredit

A line carries both a debit and a credit amount.

LineHasNeitherDebitNorCredit

A line carries neither a debit nor a credit amount.

NegativeAmount

A line has a negative debit or credit amount.

MissingAccountCode

A line is missing its PCMN account code.

InvalidJournalType(String)

Journal type is not one of ACH / VEN / FIN / ODS.

NonPositiveDebit

Debit line amount is not strictly positive.

NonPositiveCredit

Credit line amount is not strictly positive.

CrossOrgLine

A line belongs to a different organization than the entry (cross-org line injection — tenant isolation breach).

Trait Implementations

impl Clone for JournalEntryError

fn clone(&self) -> JournalEntryError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JournalEntryError

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

Formats the value using the given formatter.

impl Display for JournalEntryError

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

Formats the value using the given formatter.

impl Error for JournalEntryError

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<JournalEntryError> for AppError

fn from(e: JournalEntryError) -> Self

Une écriture comptable malformée est une erreur d’entrée client (débit≠crédit, ligne invalide, type journal inconnu…) → 400 validation, jamais 500 Internal (le From<String> générique mappait à tort vers Internal).

impl From<JournalEntryError> for String

Bridge so existing Result<_, String> use-cases keep compiling while the entity is typed (the use-case/port String→AppError cascade is a distinct, broader slice — out of WP-A3 scope). Pure, std-only.

fn from(e: JournalEntryError) -> String

Converts to this type from the input type.

impl PartialEq for JournalEntryError

fn eq(&self, other: &JournalEntryError) -> 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 StructuralPartialEq for JournalEntryError