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MigrationError

reinhardt

Enum MigrationError 

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#[non_exhaustive]
pub enum MigrationError {

Show 15 variants    NotFound(String),
    DependencyError(String),
    SqlError(Error),
    DatabaseError(DatabaseError),
    InvalidMigration(String),
    IrreversibleError(String),
    IoError(Error),
    FmtError(Error),
    CircularDependency {
        cycle: String,
    },
    NodeNotFound {
        message: String,
        node: String,
    },
    IntrospectionError(String),
    UnsupportedDatabase(String),
    DuplicateOperations(String),
    ForeignKeyViolation(String),
    PathTraversal(String),

}
Available on crate feature database and non-WebAssembly only.
Expand description

Errors that can occur during migration operations.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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NotFound(String)

The requested migration was not found.

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DependencyError(String)

A migration dependency could not be resolved.

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SqlError(Error)

An SQL execution error occurred.

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DatabaseError(DatabaseError)

A database backend error occurred.

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InvalidMigration(String)

The migration definition is invalid.

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IrreversibleError(String)

The migration cannot be reversed.

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IoError(Error)

An I/O error occurred during migration.

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FmtError(Error)

A formatting error occurred.

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CircularDependency

Circular dependency detected in migration graph.

Fields

§cycle: String

Description of the dependency cycle.

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NodeNotFound

A required migration node was not found.

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§message: String

The error message.

§node: String

The node identifier.

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IntrospectionError(String)

An error occurred during database introspection.

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UnsupportedDatabase(String)

The database type is not supported.

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DuplicateOperations(String)

Duplicate operations detected

This error occurs when a new migration has identical operations to an existing migration, which usually indicates a problem with from_state construction during makemigrations.

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ForeignKeyViolation(String)

Foreign key integrity violation during table recreation

This error occurs when SQLite table recreation results in orphaned foreign key references, indicating data integrity issues that must be resolved before the migration can proceed.

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PathTraversal(String)

Path traversal attempt detected in migration path components

This error occurs when an app label or migration name contains path traversal sequences (e.g., ..) that could escape the migration root directory.

Trait Implementations§

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impl Debug for MigrationError

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

Formats the value using the given formatter. Read more
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impl Display for MigrationError

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

Formats the value using the given formatter. Read more
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impl Error for MigrationError

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

Returns the lower-level source of this error, if any. Read more
1.0.0 · Source§

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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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. Read more
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impl From<DatabaseError> for MigrationError

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fn from(source: DatabaseError) -> MigrationError

Converts to this type from the input type.
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impl From<Error> for MigrationError

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fn from(source: Error) -> MigrationError

Converts to this type from the input type.
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impl From<Error> for MigrationError

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fn from(source: Error) -> MigrationError

Converts to this type from the input type.
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impl From<Error> for MigrationError

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fn from(source: Error) -> MigrationError

Converts to this type from the input type.

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