rally_runtime/migrate

SQL migration runner for SQLite. Reads numbered .sql files from a directory, tracks the last applied version in a schema_migrations table, and runs pending migrations inside transactions. Failed migrations roll back and leave the version at the last success.

Types

MigrationError

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pub type MigrationError {
  TableCreateFailed(message: String)
  VersionQueryFailed(message: String)
  VersionInitFailed(message: String)
  DirReadFailed(message: String)
  FileReadFailed(filename: String, message: String)
  MigrationFailed(filename: String, message: String)
  VersionUpdateFailed(message: String)
  FilenameParseFailed(filename: String)
}

Constructors

```
TableCreateFailed(message: String)
```
```
VersionQueryFailed(message: String)
```
```
VersionInitFailed(message: String)
```
```
DirReadFailed(message: String)
```

FileReadFailed(filename: String, message: String)

MigrationFailed(filename: String, message: String)

```
VersionUpdateFailed(message: String)
```
```
FilenameParseFailed(filename: String)
```

Values

error_to_string

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pub fn error_to_string(error: MigrationError) -> String

run

</>

pub fn run(
  conn conn: sqlight.Connection,
  dir dir: String,
) -> Result(Nil, MigrationError)