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Add Predecessor field to events, which holds the hash of the previous file at that path

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This commit is contained in:
Aaron Lindsay
2013-08-13 20:43:16 -04:00
parent 3f113aea42
commit 9c8730f60a
3 changed files with 14 additions and 9 deletions
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8
server/database.go
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@ -31,7 +31,7 @@ func GetAndInitDB() (*AsinkDB, error) {
}
if !rows.Next() {
//if this is false, it means no rows were returned
tx.Exec("CREATE TABLE events (id INTEGER PRIMARY KEY ASC, localid INTEGER, type INTEGER, status INTEGER, path TEXT, hash TEXT, timestamp INTEGER, permissions INTEGER);")
tx.Exec("CREATE TABLE events (id INTEGER PRIMARY KEY ASC, localid INTEGER, type INTEGER, status INTEGER, path TEXT, hash TEXT, predecessor TEXT, timestamp INTEGER, permissions INTEGER);")
tx.Exec("CREATE INDEX IF NOT EXISTS pathidx on events (path);")
}
err = tx.Commit()
@ -59,7 +59,7 @@ func (adb *AsinkDB) DatabaseAddEvent(e *asink.Event) (err error) {
adb.lock.Unlock()
}()
result, err := tx.Exec("INSERT INTO events (localid, type, status, path, hash, timestamp, permissions) VALUES (?,?,?,?,?,?,?);", e.LocalId, e.Type, e.Status, e.Path, e.Hash, e.Timestamp, e.Permissions)
result, err := tx.Exec("INSERT INTO events (localid, type, status, path, hash, predecessor, timestamp, permissions) VALUES (?,?,?,?,?,?,?,?);", e.LocalId, e.Type, e.Status, e.Path, e.Hash, e.Predecessor, e.Timestamp, e.Permissions)
if err != nil {
return err
}
@ -83,13 +83,13 @@ func (adb *AsinkDB) DatabaseRetrieveEvents(firstId uint64, maxEvents uint) (even
defer func() {
adb.lock.Unlock()
}()
rows, err := adb.db.Query("SELECT id, localid, type, status, path, hash, timestamp, permissions FROM events WHERE id >= ? ORDER BY id ASC LIMIT ?;", firstId, maxEvents)
rows, err := adb.db.Query("SELECT id, localid, type, status, path, hash, predecessor, timestamp, permissions FROM events WHERE id >= ? ORDER BY id ASC LIMIT ?;", firstId, maxEvents)
if err != nil {
return nil, err
}
for rows.Next() {
var event asink.Event
err = rows.Scan(&event.Id, &event.LocalId, &event.Type, &event.Status, &event.Path, &event.Hash, &event.Timestamp, &event.Permissions)
err = rows.Scan(&event.Id, &event.LocalId, &event.Type, &event.Status, &event.Path, &event.Hash, &event.Predecessor, &event.Timestamp, &event.Permissions)
if err != nil {
return nil, err
}