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What do I have to do to get Core Data to automatically migrate models?

...Error *error; _persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectModel]]; if (![_persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error]) { // Handle ...
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How to terminate the script in JavaScript?

How can I exit the JavaScript script much like PHP's exit or die ? I know it's not the best programming practice but I need to. ...
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How to set input type date's default value to today?

... The following code works well: <input type="date" value="<?php echo date('Y-m-d'); ?>" /> Note that this relies on PHP. share | improve this answer | ...
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Fastest way to reset every value of std::vector to 0

... does assigning it to a new vector do heap allocation ? and then discard the allocation of the existing vector ? I could see that being slower than memset et al – Conrad Jones Jan 12 '18 at 19:40 ...
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jQuery/JavaScript: accessing contents of an iframe

...nother domain you can still do it. You need to read the external page into PHP and echo it from your domain. Like this: iframe_page.php <?php $URL = "http://external.com"; $domain = file_get_contents($URL); echo $domain; ?> Then something like this: display_page.html <...
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Getting the name of a child class in the parent class (static context)

... in short. this is not possible. in php4 you could implement a terrible hack (examine the debug_backtrace()) but that method does not work in PHP5. references: 30423 37684 34421 edit: an example of late static binding in PHP 5.3 (mentioned in comments). no...
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Create batches in linq

...are simpler solutions that do not accumulate at all. Furthermore this will allocate space even for non-existent elements: Batch(new int[] { 1, 2 }, 1000000) – Nick Whaley Jul 12 '13 at 18:56 ...
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“wait_fences: failed to receive reply: 10004003”?

...that import failed UIAlertView * importFailedAlert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"ErrorTitle5", @"Import failed") message:NSLocalizedString(@"Error5", @"Something went wrong") ...
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How do you Encrypt and Decrypt a PHP String?

...s question made this mistake; as do many cryptography libraries written in PHP. You should avoid implementing your own cryptography, and instead use a secure library written by and reviewed by cryptography experts. Update: PHP 7.2 now provides libsodium! For best security, update your systems to us...
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Removing array item by value

... my bad; php's variable aliasing gimmick always trips me over >.> – srcspider Aug 27 '13 at 20:10 ...