You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

47 lines
772 B

package database
import (
"fmt"
"log"
)
func (d *DB) version() (int, error) {
var version int
err := d.db.Get(&version, "PRAGMA user_version")
if err != nil {
return -1, err
}
return version, nil
}
func (d *DB) setVersion(version int) {
d.db.MustExec(fmt.Sprintf("PRAGMA user_version = %d", version))
}
func (d *DB) migrate() {
version, err := d.version()
if err != nil {
log.Fatalf("failed to get version %s", err)
return
}
switch version {
case 0:
d.db.MustExec(`
CREATE TABLE todos (
id INTEGER PRIMARY KEY AUTOINCREMENT,
title TEXT NOT NULL,
completed INTEGER NOT NULL
);
`)
d.setVersion(1)
fallthrough
case 1:
// Not falling through
default:
log.Fatalf("Unknown version %d", version)
}
}