Multiple SQLite Databases for Multiple Languages? - iphone

Question

I would like to implement a multi language support for my app. So I created the Localizing.strings file and all that stuff and translated my interface. So far so good …
Now I want to duplicate my database in order to have a *.db-file for every single language. So I did and then I clicked via XCode on the "+" under the Localization tab. I now have a *.db-file in my en.lproj and de.lproj folder.
My problem: If I want to copy the db-files to the app's documents directory the *.db file is not available of course because it is in the *.lproj-folder. Is there any command to get the right lproj-folder?
To clarify my needs:
This doesn't work
[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"mydatabase.db"]
… this does:
[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"de.lproj/mydatabase.db"]
… but I don't want to add the "de.lproj" and "en.lproj" etc. manually. Is there any way to fix it dynamically?

Answer 1

just do the following:
NSString *dbpathResource =
[[NSBundle mainBundle] pathForResource:#"databaseName" ofType:#"db"];
and if you have your localized .db file in xx.lproj so the correct database will be taken.

Answer 2

What you want is the current language locale, the following code should return the code:
NSArray *languagesArray = [[NSUserDefaults standardUserDefaults] objectForKey:#"AppleLanguages"];
NSString *currentLanguage = [languagesArray objectAtIndex:0];
You can then do the following
[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:[NSString stringWithFormat:#"%#.lproj/mydatabase.db", currentLanguage]];
You may want to check if the path exists and is a valid file, if not maybe use some default path like the one for English (en.lproj)
Edit: There is another way you can do this using NSLocale's preferred languages because then you get a list of the preferred languages, so some updated code for the first bit would be:
NSArray *languagesArray = [NSLocale preferredLanguages];
NSString *currentLanguage = [languagesArray objectAtIndex:0];
In the end, you'd end up with something like so:
NSString *pathComponent = [NSString stringWithFormat:#"%#.lproj/mydatabase.db", currentLanguage];
NSString *path = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:pathComponent];
NSString *activePath = nil; // This will store the active language file
// Check if the file exists...
if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
activePath = path;
} else {
activePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"en.lproj/mydatabase.db"]; // Fallback
}
Please note, the above code is untested but should suffice. You may need to modify it a little...

Answer 3

Something like this:
NSString * language = [[NSLocale preferredLanguages] objectAtIndex:0];
NSString * rootPath = [[NSBundle mainBundle] resourcePath];
NSString * resourcePath = [[NSBundle mainBundle] pathForResource: #"mydatabase" ofType: #"db" inDirectory: rootPath forLocalization: language];