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Default value for field in Django model
...e/ref/models/fields/#editable
b = models.CharField(max_length=7, default='0000000', editable=False)
Also, your id field is unnecessary. Django will add it automatically.
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Git: how to reverse-merge a commit?
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106
To create a new commit that 'undoes' the changes of a past commit, use:
$ git revert <commi...
GROUP_CONCAT ORDER BY
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edited Feb 16 '16 at 9:20
answered Dec 25 '11 at 19:51
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How to write multiple line property value using PropertiesConfiguration?
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edited Jan 23 '12 at 21:50
answered Jan 23 '12 at 21:03
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How do I wrap link_to around some html ruby code?
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edited Apr 20 '15 at 9:43
Arslan Ali
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MySQL: Set user variable from result of query
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| 123456 | 5 |
| 111111 | 5 |
+--------+-------+
2 rows in set (0.00 sec)
Note that for SET, either = or := can be used as the assignment operator. However inside other statements, the assignment operator must be := and not = because = is treated as a comparison operator in non-SET stat...
Setting a timeout for socket operations
...et = new Socket();
socket.connect(new InetSocketAddress(ipAddress, port), 1000);
Quoting from the documentation
connect
public void connect(SocketAddress endpoint, int timeout) throws IOException
Connects this socket to the server with a specified timeout value. A timeout of zero is i...
Greenlet Vs. Threads
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208
Greenlets provide concurrency but not parallelism. Concurrency is when code can run independent...
ListBox vs. ListView - how to choose for data binding
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edited Apr 26 '12 at 13:01
answered Oct 22 '08 at 20:10
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Case-Insensitive List Search
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edited Oct 16 '10 at 0:59
answered Oct 16 '10 at 0:53
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