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Laravel Schema onDelete set null
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This is a known issue in Laravel. More info about this here.
This feature is not supported in SQLite, see here
Also a topic that has a detailed showdown of this problem
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Xcode 6 beta 2 issue exporting .ipa: “Your account already has a valid iOS distribution certificate”
...tes all apps that were signed and deployed with that certificate (official info).
Ask your client to export his private key from his Keychain Access application as a *.p12 file and send it to you with a password. You can't download the existing private key from the Apple website. The only way to get...
Node.js Best Practice Exception Handling
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Update: Joyent now has their own guide. The following information is more of a summary:
Safely "throwing" errors
Ideally we'd like to avoid uncaught errors as much as possible, as such, instead of literally throwing the error, we can instead safely "throw" the error using one ...
Choosing the default value of an Enum type without having to change values
...occurred in MyProjectName.dll but was not handled in user code. Additional information: Object reference not set to an instance of an object." error. How to fix it? Note: I use an extension method in order to display enum's Descriptions, but not sure how to avoid the error in the helper method (GetD...
Debug vs. Release performance
...ution
addresses is the job of the debugger.
It uses the .pdb file and info
generated by the JIT compiler that
provides the IL instruction to code
address mapping. If you would write
your own debugger, you'd use
ICorDebugCode::GetILToNativeMapping().
Basically debug deployment will ...
How to make an AJAX call without jQuery?
...s returned');
}
}
};
xmlhttp.open("GET", "ajax_info.txt", true);
xmlhttp.send();
}
</script>
With jQuery:
$.ajax({
url: "test.html",
context: document.body,
success: function(){
$(this).addClass("done");
}
});
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PHP validation/regex for URL
...urce code where references to some flags have been removed entirely. More info here: news.php.net/php.internals/99018
– S. Imp
May 12 '17 at 21:53
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Database Structure for Tree Data Structure
...incur additional overhead when writing to the structure.
3) What types of information do you need to obtain from the structure - some structures excel at providing certain kinds of information about the structure. Examples include finding a node and all its children, finding a node and all its pare...
Capture keyboardinterrupt in Python without try-except
...en re-raises that exception. But you could do this differently.)
For more info see:
Official documentation on atexit
The Python Module of the Week post, a good intro
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Postgresql - change the size of a varchar column to lower length
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For more information about how this works check out dba.stackexchange.com/questions/189890/…
– Evan Carroll
Jan 24 '18 at 17:57
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