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TransactionManagementError “You can't execute queries until the end of the 'atomic' block” while usi
...ementError when trying to save a Django User model instance and in its post_save signal, I'm saving some models that have the user as the foreign key.
...
Makefile, header dependencies
...or a simple version without build dirs see [codereview].
CXX = clang++
CXX_FLAGS = -Wfatal-errors -Wall -Wextra -Wpedantic -Wconversion -Wshadow
# Final binary
BIN = mybin
# Put all auto generated stuff to this build dir.
BUILD_DIR = ./build
# List of all .cpp source files.
CPP = main.cpp $(wildc...
Python set to list
...k that you didn't overwrite list by accident:
>>> assert list == __builtins__.list
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How to identify server IP address in PHP
...
Like this for the server ip:
$_SERVER['SERVER_ADDR'];
and this for the port
$_SERVER['SERVER_PORT'];
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How to get result of console.trace() as string in javascript with chrome or firefox?
...ers and it gives me enough information to debug.
– js_
Jul 17 '11 at 3:20
Exact the same result as answer of @Konstant...
Does IMDB provide an API? [closed]
...ail, IMDb uses the following: if (ua.i) { c.img = { src: ua.i[0].replace("._V1_.jpg", "._V1._SX40_CR0,0,40,54_.jpg"), width: 40, height: 54 } }.
– Timo Tijhof
Sep 29 '12 at 0:01
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How do I set the UI language in vim?
...very early on, and not re-read again later. So you really do need to set LC_ALL (or more specifically LC_MESSAGES) in your environment – or on non-Unixoid systems (eg. Windows), you can pass the --cmd switch (which executes the given command first thing, as opposed to the -c option):
gvim --cmd "...
Why does volatile exist?
...one. Essentially we did this:
void waitForSemaphore()
{
volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}
Without volatile, the optimizer sees the loop as useless (The guy never sets the value! He's nuts, g...
How can I get last characters of a string
...tring method .substr() combined with the .length property.
var id = "ctl03_Tabs1";
var lastFive = id.substr(id.length - 5); // => "Tabs1"
var lastChar = id.substr(id.length - 1); // => "1"
This gets the characters starting at id.length - 5 and, since the second argument for .substr() is omi...
@selector() in Swift?
... for: .touchUpInside)
view.perform(#selector(UIView.insertSubview(_:aboveSubview:)),
with: button, with: otherButton)
The great thing about this approach? A function reference is checked by the Swift compiler, so you can use the #selector expression only with class/method pair...