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Bug 939061 - [NetworkStats API] Remove redundant indexes in NetworkStatsDB.jsm. r=gene

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This commit is contained in:
John Shih 2013-11-20 09:32:55 +08:00
parent 4218da7115
commit 30a93e5f0c
1 changed files with 29 additions and 1 deletions
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30
dom/network/src/NetworkStatsDB.jsm
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@ -16,7 +16,7 @@ Cu.import("resource://gre/modules/IndexedDBHelper.jsm");
Cu.importGlobalProperties(["indexedDB"]);
const DB_NAME = "net_stats";
const DB_VERSION = 3;
const DB_VERSION = 4;
const STORE_NAME = "net_stats";
// Constant defining the maximum values allowed per interface. If more, older
@ -92,6 +92,34 @@ NetworkStatsDB.prototype = {
if (DEBUG) {
debug("Created object stores and indexes for version 3");
}
} else if (currVersion == 3) {
// Delete redundent indexes (leave "network" only).
objectStore = aTransaction.objectStore(STORE_NAME);
if (objectStore.indexNames.contains("appId")) {
objectStore.deleteIndex("appId");
}
if (objectStore.indexNames.contains("networkType")) {
objectStore.deleteIndex("networkType");
}
if (objectStore.indexNames.contains("timestamp")) {
objectStore.deleteIndex("timestamp");
}
if (objectStore.indexNames.contains("rxBytes")) {
objectStore.deleteIndex("rxBytes");
}
if (objectStore.indexNames.contains("txBytes")) {
objectStore.deleteIndex("txBytes");
}
if (objectStore.indexNames.contains("rxTotalBytes")) {
objectStore.deleteIndex("rxTotalBytes");
}
if (objectStore.indexNames.contains("txTotalBytes")) {
objectStore.deleteIndex("txTotalBytes");
}
if (DEBUG) {
debug("Deleted redundent indexes for version 4");
}
}
}
},