Enum ConstraintViolation 

pub enum ConstraintViolation {
    MissingProperty {
        constraint: String,
        entity: StoredIndexEntity,
        label: String,
        property: String,
    },
    MissingPropertiesForKey {
        constraint: String,
        entity: StoredIndexEntity,
        label: String,
        properties: Vec<String>,
    },
    WrongPropertyType {
        constraint: String,
        entity: StoredIndexEntity,
        label: String,
        property: String,
        expected: String,
    },
    UniquenessViolated {
        constraint: String,
        entity: StoredIndexEntity,
        label: String,
        property: String,
    },
}

Why a mutation was rejected by a constraint check. The codes match the Neo4j GQLSTATUS shapes:

• 22N77 — property presence verification failed.
• 22N78 — property type verification failed.
• 22N79 — property uniqueness constraint violated.
• 22N80 — index entry conflict (duplicate row found by the backing index during a CREATE CONSTRAINT scan).
• 50N11 — generic “constraint creation failed” wrapper used at DDL time to surface the underlying 22N7x error.

Variants

MissingProperty

Fields

constraint: String

entity: StoredIndexEntity

label: String

property: String

MissingPropertiesForKey

Fields

constraint: String

entity: StoredIndexEntity

label: String

properties: Vec<String>

WrongPropertyType

Fields

constraint: String

entity: StoredIndexEntity

label: String

property: String

expected: String

UniquenessViolated

Fields

constraint: String

entity: StoredIndexEntity

label: String

property: String

Implementations

impl ConstraintViolation

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

pub fn constraint_name(&self) -> &str

Trait Implementations

impl Clone for ConstraintViolation

fn clone(&self) -> ConstraintViolation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintViolation

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

Formats the value using the given formatter.

impl Display for ConstraintViolation

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

Formats the value using the given formatter.

impl Error for ConstraintViolation

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.