public static async Task EnsureSchemaExists(this NpgsqlConnection conn, string schemaName, CancellationToken cancellation = default)
{
bool shouldClose = false;
if (conn.State != ConnectionState.Open)
{
shouldClose = true;
await conn.OpenAsync(cancellation);
}
try
{
await conn
.CreateCommand(SchemaMigration.CreateSchemaStatementFor(schemaName))
.ExecuteNonQueryAsync(cancellation);
}
finally
{
if (shouldClose)
{
await conn.CloseAsync();
}
}
}
public static Task ResetSchema(this NpgsqlConnection conn, string schemaName)
{
return(conn.RunSql(DropStatementFor(schemaName, CascadeAction.Cascade), SchemaMigration.CreateSchemaStatementFor(schemaName)));
}
public static Task CreateSchema(this NpgsqlConnection conn, string schemaName)
{
return(conn.CreateCommand(SchemaMigration.CreateSchemaStatementFor(schemaName)).ExecuteNonQueryAsync());
}
public static async Task ApplyChanges(this ISchemaObject schemaObject, NpgsqlConnection conn)
{
var migration = await SchemaMigration.Determine(conn, new ISchemaObject[] { schemaObject });
await migration.ApplyAll(conn, new DdlRules(), AutoCreate.CreateOrUpdate);
}
