Enum ValidationError 

pub enum ValidationError {
    StructNotRegistered {
        struct_name: String,
    },
    TablesNotRegistered {
        tables: Vec<String>,
    },
    MissingColumns {
        struct_name: String,
        missing: Vec<String>,
    },
    UnknownColumn {
        column: String,
    },
    SqlSyntaxError {
        message: String,
    },
    HyperError {
        message: String,
    },
}

The result of validating one query_as! / query_scalar! invocation.

Variants

StructNotRegistered

The struct used in query_as! has not been registered via #[derive(Table)] #[hyperdb(register)].

Fields

struct_name: String

The Rust struct ident string.

TablesNotRegistered

One or more tables referenced by the SQL are not in the registry.

Fields

tables: Vec<String>

Table names that were referenced but not registered.

MissingColumns

The query’s result schema is missing columns that the target struct requires (one entry per missing column name).

Fields

struct_name: String

The Rust struct ident string.

missing: Vec<String>

Column names present in the struct but absent from the query result.

UnknownColumn

The SQL references a column that does not exist on any table in the query (SQLSTATE 42703). Distinct from MissingColumns, which is when the query is valid but omits a column the struct needs.

Fields

column: String

The column identifier Hyper reported as undefined.

SqlSyntaxError

The SQL has a syntax error; the message is forwarded verbatim from Hyper.

Fields

message: String

Hyper’s error message.

HyperError

An unexpected Hyper error occurred during dry-run.

Fields

message: String

Hyper’s error message.

Implementations

impl ValidationError

pub fn to_diagnostic(&self) -> String

Human-readable diagnostic message suitable for embedding in compile_error!("...").

Trait Implementations

impl Clone for ValidationError

fn clone(&self) -> ValidationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidationError

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

Formats the value using the given formatter.

impl Display for ValidationError

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

Formats the value using the given formatter.

impl Error for ValidationError

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 PartialEq for ValidationError

fn eq(&self, other: &ValidationError) -> 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 Eq for ValidationError

impl StructuralPartialEq for ValidationError