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Rails: where does the infamous “current_user” come from?
...d somewhere, usually in the session after logging in. It also assumes your app has and needs users, authentication, etc.
Typically, it's something like:
class ApplicationController < ActionController::Base
def current_user
return unless session[:user_id]
@current_user ||= User.find(se...
javac option to compile all java files under a given directory recursively
...mand line stuff. However, it always comes handy if you know what actually happens in the background so you can hunt down occasional errors like a ClassNotFoundException.
One additional note
For larger projects, it is always advised to use an IDE and a build tool. The former boosts your productivity,...
Error: 10 $digest() iterations reached. Aborting! with dynamic sortby predicate
...inds of situations:
Use ngInit directive in templates (for toy/example apps only, not
recommended for real applications)
Here's a jsFiddle with a working example.
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Can I change all my http:// links to just //?
...pache or IIS to test against http://localhost addresses works fine though.
Apparently there's at least one iPhone feed reader app that does not handle the protocol-less URLs correctly. I'm not aware of which one has the problem or how popular it is. For hosting a JavaScript file, that's not a big ...
Get user info via Google API
...izer()
{
ApplicationName = "Your app name",
HttpClientInitializer = credential
});
Person userProfile = _ps.People.Get("me").Execute();
...
How to send a message to a particular client with socket.io
... ended up wasting a lot of time trying to overcome the limitations of this approach. See @az7ar's solution and this explanation for why it's better.
– Daniel Que
Aug 13 '14 at 1:07
...
Java and SQLite [closed]
...
The wiki lists some more wrappers:
Java wrapper (around a SWIG interface): http://tk-software.home.comcast.net/
A good tutorial to use JDBC driver for SQLite. (it works at least !) http://www.ci.uchicago.edu/wiki/bin/view/VDS/VDSDevelopment/UsingSQLi...
How to update Python?
... by bit-version I mean 64-bit vs. 32-bit. For example, these answers would apply to updating from 64-bit Python-2.7.10 to 64-bit Python-2.7.11, ie: the same bit-version. While it is possible to install two different bit versions of Python together, it would require some hacking, so I'll save that ex...
Why should I use document based database instead of relational database?
...uchDB instead of using relational database.
Are there any typical kinds of applications or domains where the document based database is more suitable than the relational database?
...
running Rails console in production
...e:
bundle exec rails console production
...in the webroot of your rails app. That is if you haven't installed the rails package directly on the server yet or if you want to run console within the context of your web app.
...