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How to log something in Rails in an independent log file?
...if you don't like to monkey patch too much) to share the code between your app's models.
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Check if Python Package is installed
...here the ImportError was thrown within the module itself. This should not happen often, but just be aware that this check is not reliable in all cases.
– Koen Bok
Jun 26 '09 at 21:07
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What is Express.js?
...at Ruby on Rails or Sinatra is to Ruby.
Express 3.x is a light-weight web application framework to help organize your web application into an MVC architecture on the server side. You can use a variety of choices for your templating language (like EJS, Jade, and Dust.js).
You can then use a databas...
Clicking the back button twice to exit an activity
I've noticed this pattern in a lot of Android apps and games recently: when clicking the back button to "exit" the application, a Toast comes up with a message similar to "Please click BACK again to exit".
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How do I find out which process is locking a file using .NET?
...ime;
}
const int RmRebootReasonNone = 0;
const int CCH_RM_MAX_APP_NAME = 255;
const int CCH_RM_MAX_SVC_NAME = 63;
enum RM_APP_TYPE
{
RmUnknownApp = 0,
RmMainWindow = 1,
RmOtherWindow = 2,
RmService = 3,
RmExplorer = 4,
RmConso...
When to use Storyboard and when to use XIBs
...o projects using Storyboards. My learnings are:
Storyboards are nice for apps with a small to medium number of screens and relatively straightforward navigation between views.
If you have lots of views and lots of cross-navigation between them the Storyboard view gets confusing and too much work t...
A cron job for rails: best practices?
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I'm using the rake approach (as supported by heroku)
With a file called lib/tasks/cron.rake ..
task :cron => :environment do
puts "Pulling new requests..."
EdiListener.process_new_messages
puts "done."
end
To execute from the comma...
How can I save my secret keys and password securely in my version control system?
... You could either keep all the sensitive setting files for multiple applications in one encrypted repository or add the encrypted repository with the sensitive settings to your project as a Git submodule as described here git-scm.com/book/en/Git-Tools-Submodules .
– dgh
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Django select only rows with duplicate field values
...))
It results in this rather simple SQL query:
SELECT unnest(ARRAY_AGG("app_literal"."id")) AS "ids"
FROM "app_literal"
GROUP BY "app_literal"."name"
HAVING array_length(ARRAY_AGG("app_literal"."id"), 1) > 1
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Will Google Android ever support .NET? [closed]
... install? Perhaps put it up as a free download from the Market? Allow .Net apps to be put on the market?
– csauve
Jun 2 '10 at 16:58
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