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Very simple log4j2 XML configuration file using Console and File appender
... </File>
</Appenders>
<Loggers>
<Root level="debug">
<AppenderRef ref="Console" />
<AppenderRef ref="MyFile"/>
</Root>
</Loggers>
</Configuration>
Notes:
Put the following content in yo...
Auto reloading python Flask app upon code changes
...ue
virtualenv = /Users/xxxx/.virtualenvs/sites_env
chdir = /Users/xxx/site_root
module = site_module:register_debug_server()
callable = app
uid = myuser
chmod-socket = 660
log-date = true
workers = 1
py-autoreload = 1
site_root/__init__.py
def register_debug_server():
from werkzeug.debug impo...
How to disable back swipe gesture in UINavigationController on iOS 7
...etting the delegate to nil leads to hanging issues when you go back to the root view controller and make a swipe gesture before navigating elsewhere.
The following example assumes iOS 7:
{
id savedGestureRecognizerDelegate;
}
- (void)viewWillAppear:(BOOL)animated
{
savedGestureRecognizer...
Android View.getDrawingCache returns null, only null
...
View root = currActivity.getWindow().getDecorView().findViewById(android.R.id.content); root.setDrawingCacheEnabled(true); root.layout(0, 0, 480, 854); mBitmap = root.getDrawingCache();
...
SQL statement to get column type
...
If you're using MySQL you could try
SHOW COLUMNS FROM `tbl_name`;
SHOW COLUMNS on dev.mysql.com
Otherwise you should be able to do
DESCRIBE `tbl_name`;
share
...
selecting unique values from a column
I have a MySQL table which contains the following type of information:
9 Answers
9
...
How to perform file system scanning
...tf("Visited: %s\n", path)
return nil
}
func main() {
flag.Parse()
root := flag.Arg(0)
err := filepath.Walk(root, visit)
fmt.Printf("filepath.Walk() returned %v\n", err)
}
Please note that filepath.Walk walks the directory tree recursively.
This is an example run:
$ mkdir -p dir1/dir...
Allowed characters in Linux environment variable names
...n/sh}
Verify environment variables:
HOSTNAME=bd0bccfdc53b
SHLVL=2
HOME=/root
spring.application_name=happy-variable-name
TERM=xterm
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/
Use ps aux to verify PID not changed
PID USER TIME COMMAND
1 root 0:00 /bi...
How to define two fields “unique” as couple
... How would you handle this say if volume_number could be null? Mysql won't seem to enforce unique in that case.
– Greg
Jun 27 '11 at 17:28
27
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Remove duplicate entries using a Bash script [duplicate]
...s. Interestingly enough the same record set took 15.1 seconds to perform a MySQL DISTINCT query on.
– Tegan Snyder
Feb 11 '16 at 19:13
1
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