pub fn generate_migration_code(id: &str, diff: &SchemaDiff) -> StringExpand description
Generates a Rust source string containing a Migration impl
for the given diff.
§Arguments
id— The migration ID (e.g."0002_add_email").diff— The schema diff to translate into code.
§Returns
A Rust source string that, when compiled, produces a struct
implementing the Migration trait with up() and down()
methods.