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Check if OneToOneField is None in Django
...
Django 1.5. But I solved my particular issue by implementing what I wanted to do in a whole different way.
– alexpirine
Jul 3 '13 at 13:30
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Case insensitive searching in Oracle
...ince 10gR2, Oracle allows to fine-tune the behaviour of string comparisons by setting the NLS_COMP and NLS_SORT session parameters:
SQL> SET HEADING OFF
SQL> SELECT *
2 FROM NLS_SESSION_PARAMETERS
3 WHERE PARAMETER IN ('NLS_COMP', 'NLS_SORT');
NLS_SORT
BINARY
NLS_COMP
BINARY
SQL>...
FFmpeg: How to split video efficiently?
...es have a negligible difference.
The two command version should be quicker by adding another -ss before the input file for the a 'fast seek' followed by the more accurate slow seek.
share
|
improve...
Creating a copy of a database in PostgreSQL [closed]
...till, you may get:
ERROR: source database "originaldb" is being accessed by other users
To disconnect all other users from the database, you can use this query:
SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity
WHERE pg_stat_activity.datname = 'originaldb' AND pid <>...
Example use of “continue” statement in Python?
...** 2 <= 0:
continue
lots()
of()
code()
here()
By doing it this way I avoid very deeply nested code. Also, it is easy to optimize the loop by eliminating the most frequently occurring cases first, so that I only have to deal with the infrequent but important cases (e.g. d...
CSS text-overflow: ellipsis; not working?
...g it, and nothing else is constraining its width either.
You can fix this by doing one of the following:
Set the element to display:inline-block or display:block (probably the former, but depends on your layout needs).
Set one of its container elements to display:block and give that element a fix...
How to un-submodule a Git submodule?
...ick is that git does not store rename operations: instead, it detects them by looking at the parent commits. If there is a file content that was present in the previous commit, but with a different filename, it is considered a rename (or copy). In the steps above, git merge ensures that there will b...
How to use cURL to get jSON data and decode the data?
....../api.php?action=getThreads&hash=123fajwersa&node_id=4&order_by=post_date&order=desc&limit=1&grab_content&content_limit=1";
Using cURL
// Initiate curl
$ch = curl_init();
// Will return the response, if false it print the response
curl_setopt($ch, CURLOPT_RETU...
How to recursively download a folder via FTP on Linux [closed]
...user@login" --password="Pa$$wo|^D" ftp://server.com/
EDIT
As pointed out by @asmaier, watch out that even if -r is for recursion, it has a default max level of 5:
-r
--recursive
Turn on recursive retrieving.
-l depth
--level=depth
Specify recurs...
Rails :dependent => :destroy VS :dependent => :delete_all
...allback.
The :delete_all is made directly in your application and deletes by SQL :
DELETE * FROM users where compagny_id = XXXX
With the :destroy, there is an instantiation of all of your children. So, if you can't destroy it or if each has their own :dependent, its callbacks can be called.
...