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Get model's fields in Django
...o list all of its fields. I've seen some examples of doing this using the _meta model attribute, but doesn't the underscore in front of meta indicate that the _meta attribute is a private attribute and shouldn't be accessed directly? ... Because, for example, the layout of _meta could change in th...
What's the best way to send a signal to all members of a process group?
...st the pids of the children then use: ps -o pid --no-headers --ppid $PARENT_PID
– Szymon Jeż
Sep 15 '11 at 11:19
...
Split Python Flask app into multiple files
...like this:
Main.py
from flask import Flask
from AccountAPI import account_api
app = Flask(__name__)
app.register_blueprint(account_api)
@app.route("/")
def hello():
return "Hello World!"
if __name__ == "__main__":
app.run()
AccountAPI.py
from flask import Blueprint
account_api = Bl...
UIPanGestureRecognizer - Only vertical or horizontal
...t; fabs(velocity.x);
}
And for Swift:
func gestureRecognizerShouldBegin(_ gestureRecognizer: UIPanGestureRecognizer) -> Bool {
let velocity = gestureRecognizer.velocity(in: someView)
return abs(velocity.x) > abs(velocity.y)
}
...
How to get number of entries in a Lua table?
...ole table with pairs(..).
function tablelength(T)
local count = 0
for _ in pairs(T) do count = count + 1 end
return count
end
Also, notice that the "#" operator's definition is a bit more complicated than that. Let me illustrate that by taking this table:
t = {1,2,3}
t[5] = 1
t[9] = 1
Ac...
How do i find out what all symbols are exported from a shared object?
...
Addresses of names: 00037644
Entry Pt Ordn Name
0001FDA0 1 pcre_assign_jit_stack
000380B8 2 pcre_callout
00009030 3 pcre_compile
...
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...
What is the meaning of “__attribute__((packed, aligned(4))) ”
...;
char Data4;
//1-byte Added here.
}sSampleStruct;
We can use __attribute__((packed, aligned(X))) to insist particular(X) sized padding. X should be powers of two. Refer here
typedef struct
{
char Data1;
int Data2;
unsigned short Data3;
char Data4;
}__attribute__((...
How can I get the client's IP address in ASP.NET MVC?
...st.UserHostAddress;
string szXForwardedFor = request.ServerVariables["X_FORWARDED_FOR"];
string szIP = "";
if (szXForwardedFor == null)
{
szIP = szRemoteAddr;
}
else
{
szIP = szXForwardedFor;
if (szIP.IndexOf(",") > 0)
{
str...
How to convert PascalCase to pascal_case?
...
Try this on for size:
$tests = array(
'simpleTest' => 'simple_test',
'easy' => 'easy',
'HTML' => 'html',
'simpleXML' => 'simple_xml',
'PDFLoad' => 'pdf_load',
'startMIDDLELast' => 'start_middle_last',
'AString' => 'a_string',
'Some4Numbers234' => 'som...
How to manage local vs production settings in Django?
...
In settings.py:
try:
from local_settings import *
except ImportError as e:
pass
You can override what needed in local_settings.py; it should stay out of your version control then. But since you mention copying I'm guessing you use none ;)
...