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From "Emile khattar (Commented) (JIRA)" <>
Subject [jira] [Commented] (CB-330) localStorage / SQLDatabase no longer persistent after iOS 5.01 Update
Date Thu, 22 Mar 2012 21:48:22 GMT


Emile khattar commented on CB-330:

@Yoh you are right the plugin is meant to backup when the app resignActive or beingClosed
by the OS.
However you need explicitly backup after you call setItem or to
support cases like when the users kill the app manually from the task manager, or when the
user turn OFF/ON the phone, or maybe when the mobile turns off or whatever weird case my turn
off the app without a backup.

I would suggest you implement something  mySetItem () {
    // = bar;
    // backup: Cordova.exec(null, null, "CDVLocalStorage", "backup", []);

this will allow your storage to be more robust expect for the we have  @Brad and you and me
when we install on top of exsisting app,

Let's wait for @shazron to advise so we don't waste time.
> localStorage / SQLDatabase no longer persistent after iOS 5.01 Update
> ---------------------------------------------------------------------
>                 Key: CB-330
>                 URL:
>             Project: Apache Callback
>          Issue Type: Bug
>          Components: iOS
>    Affects Versions: 1.3.0, 1.4.0, 1.5.0
>         Environment: iOS 5.01
> PhoneGap (Any version)
> Xcode 4
> Build.PhoneGap
>            Reporter: Amirudin Bin Mohamed Ghani
>            Assignee: Shazron Abdullah
>            Priority: Blocker
>              Labels: ios5.01, localstorage, sqldatabase, websql
>             Fix For: 1.6.0
>         Attachments:,,,
iOS WebKit Database Locations.txt
> Dear Dev
> WebKit data (localstorage or local SQLite) are now stored in Library/ Caches folder (instead
of Library/WebKit folder). This is a big problem for all apps using UIWebView and storing
user data, because they will no longer be backed up and may be deleted. There are a lot of
apps using localstorage or SQLite as a critical feature. 
> The SQLite database gets deleted because the database is saved in a location on the filesystem
which Apple does not consider to contain persistent data.
> *Steps to Reproduce:* 
> In a UIWebView, create a new DB or use localStorage with JavaScript. 
> You can see that the WebKit data is now stored in Library/Caches :  
> *Expected Results:*
> We should at least specify the directory of WebKit data (and to set it 
> to Documents/ for critical data) 
> *Actual Results:* 
> The WebKit data are stored in Library/Caches folder, and can be 
> deleted 
> *Regression:*
> To migrate database location from Library/Caches to some other location such as Documents.
> ----
> Ref:

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