boltdb support.

bolt/delete.go

@@ -0,0 +1,31 @@
+package bolt
+
+import (
+	"context"
+	"encoding/hex"
+
+	"github.com/boltdb/bolt"
+	"github.com/nbd-wtf/go-nostr"
+)
+
+func (b *BoltBackend) DeleteEvent(ctx context.Context, evt *nostr.Event) error {
+	return b.db.Update(func(txn *bolt.Tx) error {
+		idPrefix8, _ := hex.DecodeString(evt.ID[0 : 8*2])
+
+		// check if we already do not have this
+		bucket := txn.Bucket(bucketId)
+		seqb := bucket.Get(idPrefix8)
+		if seqb == nil {
+			return nil
+		}
+
+		// calculate all index keys we have for this event and delete them
+		for _, k := range getIndexKeysForEvent(evt) {
+			bucket := txn.Bucket(k.bucket)
+			bucket.Delete(k.key)
+		}
+
+		// delete the raw event
+		return txn.Bucket(bucketRaw).Delete(seqb)
+	})
+}