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From "Yoh Suzuki (Issue Comment Edited) (JIRA)" <j...@apache.org>
Subject [jira] [Issue Comment Edited] (CB-330) localStorage / SQLDatabase no longer persistent after iOS 5.01 Update
Date Fri, 23 Mar 2012 00:04:22 GMT

    [ https://issues.apache.org/jira/browse/CB-330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13236194#comment-13236194
] 

Yoh Suzuki edited comment on CB-330 at 3/23/12 12:03 AM:
---------------------------------------------------------

This may be a silly question (I'm not an Objective-C programmer, nor am I familiar with native
iOS development), but inside of verifyAndFixDatabaseLocations, if it requires a change to
the plist (i.e. dirty), it writes out the plist file with the change to WebKitLocalStorageDatabasePathPreferenceKey.
 

Will this change take effect immediately?  If not (i.e. if it requires an app restart to take
effect), then this could be why localStorage data is missing until the second launch after
installing over top.

Edit: OK, I see the [appPreferences synchronize], which I assume is supposed to make the change
take effect immediately.
                
      was (Author: yohsuzuki):
    This may be a silly question (I'm not an Objective-C programmer, nor am I familiar with
native iOS development), but inside of verifyAndFixDatabaseLocations, if it requires a change
to the plist (i.e. dirty), it writes out the plist file with the change to WebKitLocalStorageDatabasePathPreferenceKey.
 

Will this change take effect immediately?  If not (i.e. if it requires an app restart to take
effect), then this could be why localStorage data is missing until the second launch after
installing over top.
                  
> localStorage / SQLDatabase no longer persistent after iOS 5.01 Update
> ---------------------------------------------------------------------
>
>                 Key: CB-330
>                 URL: https://issues.apache.org/jira/browse/CB-330
>             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: CDVLocalStoragePlugin.zip, Directory-Structure-CB-330.zip, LocalStorageTest.zip,
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: http://developer.apple.com/icloud/documentation/data-storage/
> https://devforums.apple.com/thread/137882?start=0&tstart=0

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