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https://github.com/web-platform-tests/wpt
26 December 2018, 22:31:15 UTC
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Tip revision: cca93d018277bcaca96626df414c4a2c99be098a authored by Robin Berjon on 24 March 2014, 11:31:05 UTC
bring all CSS into using the same style
Tip revision: cca93d0
idbcursor_update_index.htm 
<!DOCTYPE html>
<html>
<head>  
    <title> IDBCursor.update() - index - modify a record in the object store </title>
    <script type="text/javascript" src="support.js"></script>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script type="text/javascript">
        var objectStoreName = "objectstore";
        var indexName = "index";
        var records = [ { pKey: "primaryKey_0", iKey: "indexKey_0" },
                        { pKey: "primaryKey_1", iKey: "indexKey_1" }];
        var count = records.length;
        var db = null; 
        var t = async_test(); 

        function RunTest() {
            var rqOpen = window.indexedDB.open(databaseName, databaseVersion);
            rqOpen.onupgradeneeded = t.step_func( function (event) {
                db = event.target.result;
                db.onerror = t.step_func( assert_database_error );
                var objStore = db.createObjectStore(objectStoreName, {keyPath:"pKey"});
                objStore.createIndex(indexName, "iKey");
                for(var i = 0; i < records.length; i++) {
                    objStore.add(records[i]);
                }
            });
            rqOpen.onsuccess = t.step_func( CursorUpdateRecord );
            rqOpen.onerror = t.step_func( assert_open_request_error );
        }
        
        function CursorUpdateRecord(event) {
                var txn = db.transaction(objectStoreName, "readwrite");
                var objStore = txn.objectStore(objectStoreName);
                var index = objStore.index(indexName);
                var rqCursor = index.openCursor();
                rqCursor.onsuccess = t.step_func( function(event) {
                    var cursor = event.target.result;
                    assert_cursor_exists(cursor);

                    var record = cursor.value;
                    record.data = "new data";
                    cursor.update(record);
                });
                
                txn.oncomplete = t.step_func( VerifyRecordWasUpdated );
        }
        
        function VerifyRecordWasUpdated()
        {
            var txn = db.transaction(objectStoreName, "readonly");
            var objStore = txn.objectStore(objectStoreName);
            var rqCursor = objStore.openCursor();
            rqCursor.onsuccess = t.step_func( function(event) {
                var cursor = event.target.result;
                assert_cursor_exists(cursor);

                var record = cursor.value;
                assert_equals(record.data, "new data", "record.data");
                t.done();
            });
        }
        
        add_completion_callback(function() { if(db) db.close(); });
        
        setup(function() {
            var rqDelete = window.indexedDB.deleteDatabase(databaseName);
            rqDelete.onsuccess = t.step_func( RunTest );
        });
    </script>
</head>
<body>
    <div id="log"></div>
</body>
</html>
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