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DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
... the transaction. (You might think of it as a safety feature, to keep you from corrupting your data.)
To fix this, you'll want to figure out where in the code that bad query is being executed. It might be helpful to use the log_statement and log_min_error_statement options in your postgresql serv...
How to read all files in a folder from Java?
...e/you/Desktop");
listFilesForFolder(folder);
Files.walk API is available from Java 8.
try (Stream<Path> paths = Files.walk(Paths.get("/home/you/Desktop"))) {
paths
.filter(Files::isRegularFile)
.forEach(System.out::println);
}
The example uses try-with-resources patte...
Why don't Java's +=, -=, *=, /= compound assignment operators require casting?
... the type of E1, except that E1 is evaluated only once.
An example cited from §15.26.2
[...] the following code is correct:
short x = 3;
x += 4.6;
and results in x having the value 7 because it is equivalent to:
short x = 3;
x = (short)(x + 4.6);
In other words, your assumption is ...
WPF global exception handler [duplicate]
...ceptions at different levels:
AppDomain.CurrentDomain.UnhandledException From all threads in the AppDomain.
Dispatcher.UnhandledException From a single specific UI dispatcher thread.
Application.Current.DispatcherUnhandledException From the main UI dispatcher thread in your WPF application.
TaskSc...
Handler vs AsyncTask
...
From Honeycomb on, AsyncTasks are executed on one thread, so no parallelism anymore. You still could run them on a paralel Executor implementation.
– MrSnowflake
May 6 '13 at 15:27
...
How many bytes in a JavaScript string?
I have a javascript string which is about 500K when being sent from the server in UTF-8. How can I tell its size in JavaScript?
...
Javascript AES encryption [closed]
...C2898-compliant password-based key derivation, in Javascript, is available from Anandam. This pair of libraries works well with the analogous .NET classes. Good interop. Though, in contrast to SlowAES, the Javascript PBKDF2 is noticeably slower than the Rfc2898DeriveBytes class when generating key...
Default value to a parameter while passing by reference in C++
... and that is on a constructor. It is not possible to call one constructor from another, and so this technique does not work in that case.
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How to get a json string from url?
... Why do you skip the using statement that is used in the answer from Jon?
– Skuli
May 30 '14 at 9:03
1
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Why do C++ libraries and frameworks never use smart pointers?
...
Apart from the fact that many libraries were written before the advent of standard smart pointers, the biggest reason is probably the lack of a standard C++ Application Binary Interface (ABI).
If you’re writing a header-only lib...