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How do you write a migration to rename an ActiveRecord model and its table in Rails?
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Combine Date and Time columns using python pandas
...o apply to_datetime:
In [11]: df['Date'] + ' ' + df['Time']
Out[11]:
0 01-06-2013 23:00:00
1 02-06-2013 01:00:00
2 02-06-2013 21:00:00
3 02-06-2013 22:00:00
4 02-06-2013 23:00:00
5 03-06-2013 01:00:00
6 03-06-2013 21:00:00
7 03-06-2013 22:00:00
8 03-06-2013 23:00:00
9 ...
gitignore all files of extension in directory
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Why is it wrong to use std::auto_ptr with standard containers?
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Detect encoding and make everything UTF-8
...so missing, the XML specs define to use UTF-8 as encoding.
$url = 'http://www.lr-online.de/storage/rss/rss/sport.xml';
$accept = array(
'type' => array('application/rss+xml', 'application/xml', 'application/rdf+xml', 'text/xml'),
'charset' => array_diff(mb_list_encodings(), array('pa...
Where is the Keytool application?
...ocumentation. The docs for the Java SE 6 version are here: download.oracle.com/javase/6/docs/technotes/tools/solaris/…
– Jesper
Jan 28 '11 at 16:01
...
Is GridFS fast and reliable enough for production?
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Error handling in C code
...iki/Setjmp.h
http://aszt.inf.elte.hu/~gsd/halado_cpp/ch02s03.html
http://www.di.unipi.it/~nids/docs/longjump_try_trow_catch.html
#include <setjmp.h>
#include <stdio.h>
jmp_buf x;
void f()
{
longjmp(x,5); // throw 5;
}
int main()
{
// output of this program is 5.
int i ...
What is the purpose of std::make_pair vs the constructor of std::pair?
...at I could gather from various docs anyways.
See this example from http://www.cplusplus.com/reference/std/utility/make_pair/
pair <int,int> one;
pair <int,int> two;
one = make_pair (10,20);
two = make_pair (10.5,'A'); // ok: implicit conversion from pair<double,char>
Aside fro...
How to swap files between windows in VIM?
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