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Select DISTINCT individual columns in django?
...ee for yourself.
# The query would look something like
# SELECT DISTINCT "app_productorder"."category" FROM "app_productorder"
There are a couple of things to remember here. First, this will return a ValuesQuerySet which behaves differently from a QuerySet. When you access say, the first element ...
How can I get the client's IP address in ASP.NET MVC?
I'm totally new to the ASP.NET MVC stack, and I was wondering what happened to the simple Page object and the Request ServerVariables object?
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What are the uses of the exec command in shell scripts? [closed]
...re are some scenarios I have used it;
We want the user to run a specific application program without access to the shell. We could change the sign-in program in /etc/passwd, but maybe we want environment setting to be used from start-up files. So, in (say) .profile, the last statement says somet...
Pros and Cons of SQLite and Shared Preferences [closed]
... a THIRD option: read/write XML to a file. (See android.util.xml classes). Appropriate for moderately complex data that can be read/written all at once. For example, a grid of values that user does not change frequently. Especially if it is data that you might later want to send elsewhere, so will n...
The thread has exited with code 0 (0x0) with no unhandled exception
While debugging my C# application I have noticed a large amount occurrences of the following sentence:
7 Answers
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Resize fields in Django Admin
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It is hard to have them the same size apparently.
– Sören
Dec 10 '19 at 11:10
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“unary operator expected” error in Bash if condition
...Inside a [[ ... ]] compound, word-splitting and pathname expansion are not applied to words, so you can rely on
if [[ $aug1 == "and" ]];
to compare the value of $aug1 with the string and.
If you use [ ... ], you always need to remember to double quote variables like this:
if [ "$aug1" = "and" ]...
How to get the device's IMEI/ESN programmatically in android?
...ing said, be careful about doing this. Not only will users wonder why your application is accessing their telephony stack, it might be difficult to migrate data over if the user gets a new device.
Update: As mentioned in the comments below, this is not a secure way to authenticate users, and raises...
Node.js client for a socket.io server
...);
socket.emit('CH01', 'me', 'test msg');
Server Side :
//server.js
var app = require('express')();
var http = require('http').Server(app);
var io = require('socket.io')(http);
io.on('connection', function (socket){
console.log('connection');
socket.on('CH01', function (from, msg) {
co...
How does akka compare to Erlang? [closed]
...ing Akka means that you can use Scala, Java, Groovy or JRuby to write your applications.
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