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How to use Elasticsearch with MongoDB?
...abase through the mongo shell and push some dummy data into it.
mongo YOUR_DATABASE_NAME
db.createCollection(YOUR_COLLECTION_NAME)
for (var i = 1; i <= 25; i++) db.YOUR_COLLECTION_NAME.insert( { x : i } )
Now to Convert the standalone MongoDB into a Replica Set.
First Shutdown the process.
m...
How to exit from Python without traceback?
...Shutdown requested...exiting"
except Exception:
traceback.print_exc(file=sys.stdout)
sys.exit(0)
if __name__ == "__main__":
main()
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Format floats with standard json module
...ckage). E.g., this code:
import json
from json import encoder
encoder.FLOAT_REPR = lambda o: format(o, '.2f')
print(json.dumps(23.67))
print(json.dumps([23.67, 23.97, 23.87]))
emits:
23.67
[23.67, 23.97, 23.87]
as you desire. Obviously, there should be an architected way to override FLOAT_REP...
Loop through an array of strings in Bash?
...example below it is changed to a comma
List="Item 1,Item 2,Item 3"
Backup_of_internal_field_separator=$IFS
IFS=,
for item in $List;
do
echo $item
done
IFS=$Backup_of_internal_field_separator
Output:
Item 1
Item 2
Item 3
If need to number them:
`
this is called a back tick. Put t...
Get operating system info
...from an answer on SO https://stackoverflow.com/a/15497878/
<?php
$user_agent = $_SERVER['HTTP_USER_AGENT'];
function getOS() {
global $user_agent;
$os_platform = "Unknown OS Platform";
$os_array = array(
'/windows nt 10/i' => 'Windows 10'...
Can I access constants in settings.py from templates in Django?
..., frequently-used settings constants to the template such as settings.MEDIA_URL and some of the language settings if you use django's built in generic views or pass in a context instance keyword argument in the render_to_response shortcut function. Here's an example of each case:
from django.short...
How do I configure different environments in Angular.js?
...nstant: {
options: {
name: 'config',
wrap: '"use strict";\n\n{%= __ngModule %}',
space: ' '
},
development: {
options: {
dest: '<%= yeoman.app %>/scripts/config.js'
},
constants: {
ENV: 'development'
}
},
production: {
options: {
des...
What is the volatile keyword useful for?
... volatile:
public class Singleton {
private static volatile Singleton _instance; // volatile variable
public static Singleton getInstance() {
if (_instance == null) {
synchronized (Singleton.class) {
if (_instance == null)
_instance = ...
Can I specify multiple users for myself in .gitconfig?
...
You should also unset GIT_AUTHOR_EMAIL and GIT_COMMITTER_EMAIL (and *_NAME) as they will override the local settings
– ACyclic
Sep 14 '12 at 9:58
...
Recursive file search using PowerShell
...above mean is... ls -r -ea silentlycontinue -fo -inc "filename.txt" | % { $_.fullname }
– Andrew
Nov 4 '17 at 7:34
...