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What do helper and helper_method do?
...ntroller.rb
def current_user
@current_user ||= User.find_by_id!(session[:user_id])
end
helper_method :current_user
the helper method on the other hand, is for importing an entire helper to the views provided by the controller (and it's inherited controllers). What this means is doing
# applicat...
Set initial focus in an Android application
...automatically focuses the first Button I have in my layout, giving it an orange outline. How can I set the initial focus preferably in XML, and can this be set to nothing?
...
How to create a video from images with FFmpeg?
...s://github.com/cirosantilli/media/blob/master/opengl-rotating-triangle.zip?raw=true
unzip opengl-rotating-triangle.zip
cd opengl-rotating-triangle
wget -O audio.ogg https://upload.wikimedia.org/wikipedia/commons/7/74/Alnitaque_%26_Moon_Shot_-_EURO_%28Extended_Mix%29.ogg
Images generated with: How ...
What C++ Smart Pointer Implementations are available?
...e rvalue auto pointer to a null pointer. Which leads to perhaps the worst drawback; they can't be used within STL containers due to the aforementioned inability to be copied. The final blow to any use case is they are slated to be deprecated in the next standard of C++.
std::auto_ptr_ref - This is ...
Any free WPF themes? [closed]
...rlight themes!!!
Expression Dark
Expression Light
Rainier Purple
Rainier Orange
Shiny Blue
Shiny Red
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GitHub README.md center image
...e worried about not using too much github bandwith, you can give a look to Raw Git, that serves files stored on GitHub, caching them on their system. So, just one access is performed on the resource on GitHub, saving their bandwith.
– danidemi
Feb 15 '15 at 13:...
CSS Box Shadow Bottom Only [duplicate]
...
}
#outer > div {
width: 100px;
height: 100px;
background: orange;
-moz-box-shadow: 0 4px 4px rgba(0, 0, 0, 0.4);
-webkit-box-shadow: 0 4px 4px rgba(0, 0, 0, 0.4);
box-shadow: 0 4px 4px rgba(0, 0, 0, 0.4);
}
Alternatively, float the outer element to cause it to shrink ...
Detect Android phone via Javascript / jQuery
...id 4.0; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 625; Orange) like iPhone OS 7_0_3 Mac OS X AppleWebKit/537 (KHTML, like Gecko) Mobile Safari/537
– Sam Jason Braddock
Dec 16 '15 at 9:30
...
Django queries - id vs pk
...ed to use a variable named pk. I prefer using something more verbose, like user_id instead of pk.
Following the same convention is preferable across the whole project. In your case id is a parameter name, not a property, so there is almost no difference in timings. Parameter names do not clash with...
How do I do multiple CASE WHEN conditions using SQL Server 2008?
...elect
case colour_txt
when 'red' then 5
when 'green' then 4
when 'orange' then 3
else 0
end as Pass_Flag
this only works on equality comparisons!
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