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Rails: Default sort order for a rails model?
...
default_scope
This works for Rails 4+:
class Book < ActiveRecord::Base
default_scope { order(created_at: :desc) }
end
For Rails 2.3, 3, you need this instead:
default_scope order('created_at DESC')
For Rails 2.x:
default_scope :order =>...
window.close and self.close do not close the window in Chrome
...p various malicious exploits and annoyances.
From the latest working spec for window.close():
The close() method on Window objects should, if all the following conditions are met, close the browsing context A:
The corresponding browsing context A is script-closable.
The browsing conte...
Why sizeof int is wrong, while sizeof(int) is right?
We know that sizeof is an operator used for calculating the size of any datatype and expression, and when the operand is an expression, the parentheses can be omitted.
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What is the best CSS Framework and are they worth the effort?
Reading on another forum I've came across the world of CSS Frameworks. The one I've been specifically looking at is BluePrint . I was wondering if anyone else had come across CSS frameworks, suggest which is the best and if they are worth the effort?
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Difference between applicationContext.xml and spring-servlet.xml in Spring Framework
...in a parent-child hierarchy.
The applicationContext.xml defines the beans for the "root webapp context", i.e. the context associated with the webapp.
The spring-servlet.xml (or whatever else you call it) defines the beans for one servlet's app context. There can be many of these in a webapp, one ...
Difference between java.util.Random and java.security.SecureRandom
...s plenty more research that clearly shows that you should never use an LCG for security-critical purposes. This also means that your random numbers are predictable right now, something you don't want for session IDs and the like.
How to break a Linear Congruential Generator
The assumption that an ...
Maven command to list lifecycle phases along with bound goals?
...ight be obvious, but I can't find an easy way to list the goals associated for each maven lifecycle phase for a given project.
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Class method decorator with self arguments?
...es how the internal function _impl can access self to manipulate that self for whatever purpose. I needed to build a simple method decorator that incremented a self.id on a subset of the methods in a class, and only those methods in a class that had the "@" decoration syntax applied to it. That Syn...
Google Maps API v3: How do I dynamically change the marker icon?
...
Call the marker.setIcon('newImage.png')... Look here for the docs.
Are you asking about the actual way to do it? You could just create each div, and a add a mouseover and mouseout listener that would change the icon and back for the markers.
...
Add native files from NuGet package to project output directory
I'm trying to create NuGet package for a .Net assembly which does pinvoke to a native win32 dll.
I need to pack both the assembly and the native dll with the assembly added to the project references (no problem at this part) and the native dll should be copied into the project output directory or so...