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    <p>Mobile Orchard has a great tutorial, describing how to restore your applications database through Custom URL handlers of a serialized SQL Lite database: <a href="http://www.mobileorchard.com/lite-to-paid-iphone-application-data-migrations-with-custom-url-handlers/">Lite To Paid iPhone Application Data Migrations With Custom URL Handlers</a></p> <p>(paraphrased instructions from the article)</p> <ol> <li><a href="http://www.mobileorchard.com/apple-approved-iphone-inter-process-communication/">Setup a custom URL handler</a> in your project's Info.plist <a href="http://www.mobileorchard.com/wp-content/uploads/2009/01/result.png">Setup a custom URL handler http://www.mobileorchard.com/wp-content/uploads/2009/01/result.png</a></li> <li><p>In your email message convert your database or application data to NSData base64, and include it in a URL For example:</p> <p>[NSString stringWithFormat: @"myapplication://localhost/importDatabase?%@",encodedStringData] </p></li> <li><p>Add a handleOpenURL method to your AppDelegate implementation</p></li> </ol> <p>Example AppDelegate Implementation:</p> <pre><code>#import "GTMBase64.h" - (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url { if([@"/importDatabase" isEqual:[url path]]) { NSString *query = [url query]; NSString *importUrlData = [GTMBase64 webSafeDecodeString:query]; // NOTE: In practice you will want to prompt the user to confirm before you overwrite their files! [importUrlData writeToFile:@"/path/to/FullApplication/Documents/file" atomically:YES]; return YES; } return NO; } </code></pre> <p>Mobile Orchard on File size limitations:</p> <blockquote> <p>We have transferred files of up to 100k this way, and the size of a URL string is theoretically only limited by <a href="http://www.benzado.com/blog/post/28/iphone-openurl-limit">available memory</a>. That said, this approach is most suitable for applications with small to medium size data transfer requirements. Best of all though, it can be easily used for SQLite databases, XML files, text files, or even extended to handled compressed archives.</p> </blockquote>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

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