use crate::config::Config;
use crate::migration::{DatabaseMigrationManager, MigrationManager};
use crate::StdResult;
use std::convert::TryFrom;
pub(crate) fn downgrade_applied_migrations(config: Config) -> StdResult<()> {
let mut manager = MigrationManager::try_from(&config)?;
let applied_migrations = manager.applied_migration_names()?;
let migrations = config.migrations()?;
if let Some(first_applied_migration) = applied_migrations.first() {
if let Some(migration) = migrations
.iter()
.find(|m| m.name() == first_applied_migration)
{
println!("downgrade {}...", migration.name());
manager.downgrade(&migration)?;
}
Ok(())