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How to add a custom right-click menu to a webpage?
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@Shashwat You know place, where user has clicked, and you don't have original menu. Create a container in that place and display your menu there.
– Radek Benkel
Sep 18 '12 at 14:32
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How do you write a migration to rename an ActiveRecord model and its table in Rails?
...y.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_name, :new_table_name
end
end
(You still have to go t...
Why is IoC / DI not common in Python?
...Python, I simply import from a different location using the same name. But now I am thinking if it's also possible the other way round by defining a MyClassInstances class to each MyClass in Java, which contains only static, fully initialized instances. That would be wired :D
–...
Cross-browser custom styling for file upload button [duplicate]
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He was complaing about that it won't resize, but now with font-size it will. Quote: "My major issue with this Quirksmode's approach is that the file button will still have the browser-defined dimensions, so it won't automatically adjust to whatever's used as button that's p...
What is Domain Driven Design?
...ER (not so complete :))
In order to create good software, you have to know what that software
is all about. You cannot create a banking software system unless you
have a good understanding of what banking is all about, one must
understand the domain of banking.
From: Domain Driven Design...
How do I catch a numpy warning like it's an exception (not just for testing)?
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To add a little to @Bakuriu's answer:
If you already know where the warning is likely to occur then it's often cleaner to use the numpy.errstate context manager, rather than numpy.seterr which treats all subsequent warnings of the same type the same regardless of where they occ...
Split a module across several files
...threw out namespacing. Changing one file in a way unrelated to another can now break other files. Your use of 'use' becomes leaky (ie everything is like use super::*). You can't hide code from other files (which is important for unsafe-using safe abstractions)
– Demur Rumed
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How are 3D games so efficient? [closed]
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Eeeeek!
I know that this question is old, but its exciting that no one has mentioned VSync!!!???
You compared the CPU usage of the game at 60fps to CPU usage of the teapot demo at 60fps.
Isn't it apparent, that both run (more or less)...
How to redirect cin and cout to files?
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Here is an working example of what you want to do. Read the comments to know what each line in the code does. I've tested it on my pc with gcc 4.6.1; it works fine.
#include <iostream>
#include <fstream>
#include <string>
void f()
{
std::string line;
while(std::getline(...
kernel stack and user space stack
...tware RAID code being interrupted by network code with iptables active is known to trigger such in untuned older kernels ... solution is to increase kernel stack sizes for such workloads).
Does each process have its own kernel stack ?
Not just each process - each thread has its own kerne...