Index: src/SL3Connection.h
==================================================================
--- src/SL3Connection.h
+++ src/SL3Connection.h
@@ -42,8 +42,11 @@
 - (instancetype)initWithPath: (OFString *)path;
 - (instancetype)initWithPath: (OFString *)path
 		       flags: (int)flags OF_DESIGNATED_INITIALIZER;
 - (SL3PreparedStatement *)prepareStatement: (OFConstantString *)SQL;
 - (void)executeStatement: (OFConstantString *)SQL;
+#ifdef OF_HAVE_BLOCKS
+- (void)transactionWithBlock: (bool (^)(void))block;
+#endif
 @end
 
 OF_ASSUME_NONNULL_END

Index: src/SL3Connection.m
==================================================================
--- src/SL3Connection.m
+++ src/SL3Connection.m
@@ -88,6 +88,27 @@
 	if (code != SQLITE_OK)
 		@throw [SL3ExecuteStatementFailedException
 		    exceptionWithConnection: self
 				  errorCode: code];
 }
+
+#ifdef OF_HAVE_BLOCKS
+- (void)transactionWithBlock: (bool (^)(void))block
+{
+	bool commit;
+
+	[self executeStatement: @"BEGIN TRANSACTION"];
+
+	@try {
+		commit = block();
+	} @catch (id e) {
+		[self executeStatement: @"ROLLBACK TRANSACTION"];
+		@throw e;
+	}
+
+	if (commit)
+		[self executeStatement: @"COMMIT TRANSACTION"];
+	else
+		[self executeStatement: @"ROLLBACK TRANSACTION"];
+}
+#endif
 @end