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