47 lines
1.4 KiB
Rust
47 lines
1.4 KiB
Rust
|
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
|
||
|
|
// This file is part of Parity.
|
||
|
|
|
||
|
|
// Parity is free software: you can redistribute it and/or modify
|
||
|
|
// it under the terms of the GNU General Public License as published by
|
||
|
|
// the Free Software Foundation, either version 3 of the License, or
|
||
|
|
// (at your option) any later version.
|
||
|
|
|
||
|
|
// Parity is distributed in the hope that it will be useful,
|
||
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
// GNU General Public License for more details.
|
||
|
|
|
||
|
|
// You should have received a copy of the GNU General Public License
|
||
|
|
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
|
||
|
|
//! Adds a seventh column for node information.
|
||
|
|
|
||
|
|
use util::kvdb::Database;
|
||
|
|
use util::migration::{Batch, Config, Error, Migration, Progress};
|
||
|
|
use std::sync::Arc;
|
||
|
|
|
||
|
|
/// Copies over data for all existing columns.
|
||
|
|
#[derive(Default)]
|
||
|
|
pub struct ToV11(Progress);
|
||
|
|
|
||
|
|
|
||
|
|
impl Migration for ToV11 {
|
||
|
|
fn pre_columns(&self) -> Option<u32> { Some(6) }
|
||
|
|
fn columns(&self) -> Option<u32> { Some(7) }
|
||
|
|
|
||
|
|
fn version(&self) -> u32 { 11 }
|
||
|
|
|
||
|
|
fn migrate(&mut self, source: Arc<Database>, config: &Config, dest: &mut Database, col: Option<u32>) -> Result<(), Error> {
|
||
|
|
// just copy everything over.
|
||
|
|
let mut batch = Batch::new(config, col);
|
||
|
|
|
||
|
|
for (key, value) in source.iter(col) {
|
||
|
|
self.0.tick();
|
||
|
|
batch.insert(key.to_vec(), value.to_vec(), dest)?
|
||
|
|
}
|
||
|
|
|
||
|
|
batch.commit(dest)
|
||
|
|
}
|
||
|
|
}
|