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Django - How to rename a model field using South?
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You can use the db.rename_column function.
class Migration:
def forwards(self, orm):
# Rename 'name' field to 'full_name'
db.rename_column('app_foo', 'name', 'full_name')
def backwards(self, orm):
# Rename 'full_...
Exit Shell Script Based on Process Exit Code
I have a shell script that executes a number of commands. How do I make the shell script exit if any of the commands exit with a non-zero exit code?
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Change case of a file on Windows?
...o do this in bulk? e.g. with powershell, Get-ChildItem '.' | Rename-Item {$_.Name.ToLowerCase()}
– killjoy
Nov 4 '18 at 1:23
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Cutting the videos based on start and end time using ffmpeg
...in the OSD with --osd-fractions
old answer with explanation (slow)
To cut based on start and end time from the source video and avoid having to do math, specify the end time as the input option and the start time as the output option.
ffmpeg -t 1:00 -i input.mpg -ss 45 output.mpg
This will produce...
Difference between Hive internal tables and external tables?
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Hive has a relational database on the master node it uses to keep track of state.
For instance, when you CREATE TABLE FOO(foo string) LOCATION 'hdfs://tmp/';, this table schema is stored in the database.
If you have a partitioned table, the partition...
iOS / Android cross platform development [closed]
...ou can script in JavaScript, C#, or Boo. If you want to write a 3D physics-based game that will run on iOS, Android, Windows, OS X, or consoles, this is probably the tool for you. You can also write 2D games using 3D assets--a fine example of this is indie game Max and the Magic Marker, a 2D physics...
How to move certain commits to be based on another branch in git?
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This is a classic case of rebase --onto:
# let's go to current master (X, where quickfix2 should begin)
git checkout master
# replay every commit *after* quickfix1 up to quickfix2 HEAD.
git rebase --onto master quickfix1 quickfix2
So you should...
Getting A File's Mime Type In Java
... ... or just new Tika().detect(file.toPath()) for the file's extension based detection rather than detection based on the file's content
– Lu55
Jun 5 '18 at 10:59
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Intent - if activity is running, bring it to front, else start a new one (from notification)
...nt = new Intent(context, MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
return PendingIntent.getActivity(context, NON_ZERO_REQUEST_CODE, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
}
Here FLAG_ACTIVITY_SINGLE_TOP opens existin...
How can I SELECT rows with MAX(Column value), DISTINCT by another column in SQL?
... @MaxGontar, your mysql solution rocks, thx. what if in your @_TestTable you remove row#1>: SELECT 1, 10, '2009-03-04', 'john', 399 , this is, what if you have a single row for a given home value? thx.
– egidiocs
Nov 11 '11 at 3:44
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