Yehowshua/ZIm
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

working serialized writes with panics on failure. Everything seems to be working

Browse source
This commit is contained in:
Kay Simmons 2022-11-23 01:53:58 -08:00 • committed by Mikayla Maki
parent b01243109e
commit 1cc3e4820a
34 changed files with 669 additions and 312 deletions
Download patch file Download diff file Expand all files Collapse all files

58
crates/sqlez/src/migrations.rs
View file

@ -11,46 +11,48 @@ use crate::connection::Connection;
impl Connection {
pub fn migrate(&self, domain: &'static str, migrations: &[&'static str]) -> Result<()> {
// Setup the migrations table unconditionally
self.exec(indoc! {"
CREATE TABLE IF NOT EXISTS migrations (
self.with_savepoint("migrating", || {
// Setup the migrations table unconditionally
self.exec(indoc! {"
CREATE TABLE IF NOT EXISTS migrations (
domain TEXT,
step INTEGER,
migration TEXT
)"})?()?;
)"})?()?;
let completed_migrations =
self.select_bound::<&str, (String, usize, String)>(indoc! {"
let completed_migrations =
self.select_bound::<&str, (String, usize, String)>(indoc! {"
SELECT domain, step, migration FROM migrations
WHERE domain = ?
ORDER BY step
"})?(domain)?;
"})?(domain)?;
let mut store_completed_migration =
self.exec_bound("INSERT INTO migrations (domain, step, migration) VALUES (?, ?, ?)")?;
let mut store_completed_migration = self
.exec_bound("INSERT INTO migrations (domain, step, migration) VALUES (?, ?, ?)")?;
for (index, migration) in migrations.iter().enumerate() {
if let Some((_, _, completed_migration)) = completed_migrations.get(index) {
if completed_migration != migration {
return Err(anyhow!(formatdoc! {"
Migration changed for {} at step {}
Stored migration:
{}
Proposed migration:
{}", domain, index, completed_migration, migration}));
} else {
// Migration already run. Continue
continue;
for (index, migration) in migrations.iter().enumerate() {
if let Some((_, _, completed_migration)) = completed_migrations.get(index) {
if completed_migration != migration {
return Err(anyhow!(formatdoc! {"
Migration changed for {} at step {}
Stored migration:
{}
Proposed migration:
{}", domain, index, completed_migration, migration}));
} else {
// Migration already run. Continue
continue;
}
}
self.exec(migration)?()?;
store_completed_migration((domain, index, *migration))?;
}
self.exec(migration)?()?;
store_completed_migration((domain, index, *migration))?;
}
Ok(())
Ok(())
})
}
}