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Changing Vim indentation behavior by file type
...t html/rb indent for 2 spaces, and js/coffee files indent for 4 spaces:
" by default, the indent is 2 spaces.
set shiftwidth=2
set softtabstop=2
set tabstop=2
" for html/rb files, 2 spaces
autocmd Filetype html setlocal ts=2 sw=2 expandtab
autocmd Filetype ruby setlocal ts=2 sw=2 expandtab
" for...
How do I use pagination with Django class based generic ListViews?
...th traditional function based views, it is easy to find. I found that just by setting the paginate_by variable is enough to activate the pagination. See in Class-based generic views.
For example, in your views.py:
import models
from django.views.generic import ListView
class CarListView(ListView)...
Beautiful Soup and extracting a div and its contents by ID
... just can't find divs inside divs, so i need to narrow things down wrapper by wrapper.
– Tony Stark
Jan 25 '10 at 22:59
...
bash HISTSIZE vs. HISTFILESIZE?
... only commands 41 to 50 are in your history list, whose size is determined by HISTSIZE=10.
You end your session.
Assuming histappend is not enabled, commands 41 to 50 are saved to your HISTFILE which now has the 10 commands it held at the beginning plus the 10 newly written commands.
Your HISTFILE ...
Fast way to discover the row count of a table in PostgreSQL
...tely after a big INSERT or DELETE.
TEMPORARY tables (which are not covered by autovacuum).
This only looks at a random n % (1 in the example) selection of blocks and counts rows in it. A bigger sample increases the cost and reduces the error, your pick. Accuracy depends on more factors:
Distribu...
Should everything really be a bundle in Symfony 2.x?
...rst, you need to tell JMSDiExtraBundle to scan the src folder for services by adding this to config.yml:
jms_di_extra:
locations:
directories: %kernel.root_dir%/../src
Then you define controllers as services and put them under the Controller namespace:
<?php
namespace Vendor\Controll...
What is 'Context' on Android?
... your program (activity and package/application).
You can get the context by invoking getApplicationContext(), getContext(), getBaseContext() or this (when in a class that extends from Context, such as the Application, Activity, Service and IntentService classes).
Typical uses of context:
Creati...
Find an element in DOM based on an attribute value
...great...if you're not, you need not rely it on just for selecting elements by attributes anymore.
There's not a very short way to do this in vanilla javascript, but there are some solutions available.
You do something like this, looping through elements and checking the attribute
If a library l...
Use variable with TOP in select statement in SQL Server without making it dynamic [duplicate]
...atement. So you can do things like:
SELECT TOP (@foo) a FROM table ORDER BY a
SELECT TOP (SELECT COUNT(*) FROM somewhere else) a FROM table ORDER BY a
SELECT TOP (@foo + 5 * 4 / 2) a FROM table ORDER BY a
Source
sha...
Getting a Custom Objects properties by string var [duplicate]
... Because in this comment "thing" is a string (its surrounded by quotes).
– Rob
Oct 19 '16 at 8:11
if you...