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How to add new column to MYSQL table?
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Thanks, It worked with - mysql_query("ALTER TABLE assessment ADD q6 INT(1) NOT NULL AFTER q5");
– Steven Trainor
Apr 19 '13 at 21:33
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Execute code when Django starts ONCE only?
...d executed once.
urls.py
from django.confs.urls.defaults import *
from my_app import one_time_startup
urlpatterns = ...
one_time_startup()
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What is the difference between “ is None ” and “ ==None ”
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class Foo:
def __eq__(self,other):
return True
foo=Foo()
print(foo==None)
# True
print(foo is None)
# False
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How to specify new GCC path for CMake
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Do not overwrite CMAKE_C_COMPILER, but export CC (and CXX) before calling cmake:
export CC=/usr/local/bin/gcc
export CXX=/usr/local/bin/g++
cmake /path/to/your/project
make
The export only needs to be done once, the first time you configure the...
How to implement the factory method pattern in C++ correctly
...ude <memory>
class FactoryReleaseOwnership{
public:
std::unique_ptr<Foo> createFooInSomeWay(){
return std::unique_ptr<Foo>(new Foo(some, args));
}
};
// Factory retains object ownership
// Thus returning a reference.
#include <boost/ptr_container/ptr_vector.hpp&...
Find unique rows in numpy.array
...f unique values in any N-dim array. To get unique rows, one can do:
unique_rows = np.unique(original_array, axis=0)
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Cookies on localhost with explicit domain
...ill consider them invalid. (See reference on http://curl.haxx.se/rfc/cookie_spec.html)
When working on localhost, the cookie domain must be omitted entirely. Just setting it to "" or NULL or FALSE instead of "localhost" is not enough.
For PHP, see comments on http://php.net/manual/en/function.set...
MongoDB Aggregation: How to get total records count?
...te(array(
array('$match' => $document),
array('$group' => array('_id' => '$book_id', 'date' => array('$max' => '$book_viewed'), 'views' => array('$sum' => 1))),
array('$sort' => $sort),
// get total, AND preserve the results
array('$group' => array('_id' => nu...
git command to move a folder inside another
...Name newFolderName
got
fatal: bad source, source=oldFolderName/somepath/__init__.py, dest
ination=ESWProj_Base/ESWProj_DebugControlsMenu/somepath/__init__.py
I did
git rm -r oldFolderName
and
git add newFolderName
and I don't see old git history in my project. At least my project is not l...
Linq Syntax - Selecting multiple columns
...method chaining. The method chaining equivalent would be:-
var employee = _db.EMPLOYEEs
.Where(x => x.EMAIL == givenInfo || x.USER_NAME == givenInfo)
.Select(x => new { x.EMAIL, x.ID });
AFAIK, the declarative LINQ syntax is converted to a method call chain similar to this when it i...