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1 <!DOCTYPE html> | |
2 <meta charset="utf-8"> | |
3 <title>Keygenerator</title> | |
4 <link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal"> | |
5 <link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#
key-generator-concept"> | |
6 <link rel=assert title="The current number of a key generator is always set to 1
when the object store for that key generator is first created."> | |
7 <link rel=assert title="When a key generator is used to generate a new key for a
object store, the key generator's current number is used as the new key value a
nd then the key generator's current number is increased by 1."> | |
8 <link rel=assert title="When a record is stored in a object store which uses a k
ey generator, and an explicit key is defined, if the key's value is a float grea
ter than or equal to the key generator's current number, then the key generator'
s current number is set to the smallest integer number larger than the explicit
key. Only explicit keys which are float values affect the current number of the
key generator."> | |
9 <script src="../../../resources/testharness.js"></script> | |
10 <script src="../../../resources/testharnessreport.js"></script> | |
11 <script src="support.js"></script> | |
12 | |
13 <script> | |
14 function keygenerator(objects, expected_keys, desc, func) { | |
15 var db, | |
16 t = async_test(document.title + " - " + desc); | |
17 | |
18 var open_rq = createdb(t); | |
19 open_rq.onupgradeneeded = function(e) { | |
20 db = e.target.result; | |
21 var objStore = db.createObjectStore("store", { keyPath: "id", autoIn
crement: true }); | |
22 | |
23 for (var i = 0; i < objects.length; i++) | |
24 { | |
25 if (objects[i] === null) | |
26 objStore.add({}); | |
27 else | |
28 objStore.add({ id: objects[i] }); | |
29 } | |
30 }; | |
31 | |
32 open_rq.onsuccess = function(e) { | |
33 var actual_keys = [], | |
34 rq = db.transaction("store") | |
35 .objectStore("store") | |
36 .openCursor(); | |
37 | |
38 rq.onsuccess = t.step_func(function(e) { | |
39 var cursor = e.target.result; | |
40 | |
41 if (cursor) { | |
42 actual_keys.push(cursor.key.valueOf()); | |
43 cursor.continue(); | |
44 } | |
45 else { | |
46 assert_key_equals(actual_keys, expected_keys, "keygenerator
array"); | |
47 t.done(); | |
48 } | |
49 }); | |
50 }; | |
51 } | |
52 | |
53 | |
54 keygenerator([null, null, null, null], [1, 2, 3, 4], | |
55 "starts at one, and increments by one"); | |
56 | |
57 keygenerator([2, null, 5, null, 6.66, 7], [2, 3, 5, 6, 6.66, 7], | |
58 "increments by one from last set key"); | |
59 | |
60 keygenerator([-10, null, "6", 6.3, [10], -2, 4, null], [-10, -2, 1, 4, 6.3
, 7, "6", [10]], | |
61 "don't increment when new key is not bigger than current"); | |
62 | |
63 </script> | |
64 | |
65 <div id="log"></div> | |
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