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https://issues.apache.org/jira/browse/CB-330?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13236194#comment-13236194
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Yoh Suzuki edited comment on CB-330 at 3/23/12 12:03 AM:
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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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