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<!DOCTYPE html>
<title>IDBCursor.advance() - index - iterate to the next record</title>
<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBCursor-advance-void-unsigned-long-count">
<link rel=assert title="The operation runs the steps for iterating a cursor count number of times with null as key and this cursor as cursor.">
<link rel=assert title="The number of advances forward the cursor should make.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support.js"></script>
<script>
var db,
count = 0,
t = async_test(document.title, {timeout: 10000}),
records = [ { pKey: "primaryKey_0", iKey: "indexKey_0" },
{ pKey: "primaryKey_1", iKey: "indexKey_1" },
{ pKey: "primaryKey_1-2", iKey: "indexKey_1" } ],
expected = [ { pKey: "primaryKey_0", iKey: "indexKey_0" },
{ pKey: "primaryKey_1-2", iKey: "indexKey_1" } ];
var open_rq = createdb(t);
open_rq.onupgradeneeded = function(e) {
db = e.target.result
var objStore = db.createObjectStore("test", { keyPath:"pKey" })
objStore.createIndex("index", "iKey")
for (var i = 0; i < records.length; i++)
objStore.add(records[i])
};
open_rq.onsuccess = function(e) {
var cursor_rq = db.transaction("test")
.objectStore("test")
.index("index")
.openCursor();
cursor_rq.onsuccess = t.step_func(function(e) {
var cursor = e.target.result;
if (!cursor) {
assert_equals(count, expected.length, "cursor run count")
t.done()
}
var record = cursor.value;
assert_equals(record.pKey, expected[count].pKey, "primary key");
assert_equals(record.iKey, expected[count].iKey, "index key");
cursor.advance(2);
count++;
});
};
</script>
<div id="log"></div>
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