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How to get last N records with activerecord?
...uld get you what you want ('Something' is the model name):
Something.find(:all, :order => "id desc", :limit => 5).reverse
edit: As noted in the comments, another way:
result = Something.find(:all, :order => "id desc", :limit => 5)
while !result.empty?
puts result.pop
end
...
Erlang's 99.9999999% (nine nines) reliability
...ntime, the author can state "nine nines reliability" for AXD301 (which was all he ever said, avoiding specifics). It doesn't necessarily mean Erlang is the only cause of such high reliability.
EDIT: In fact, "20 years" itself seems like a misinterpretation. Joe mentions a figure of 20 years in the s...
Moq mock method with out specifying input parameter
...le parameter? Is it possible to just say "Anything where the types fit for all parameters"?
– Brandon
Mar 2 '16 at 19:13
...
How does Python manage int and long?
Does anybody know how Python manage internally int and long types?
9 Answers
9
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Assembly code vs Machine code vs Object code?
...e to machine code with the use of an assembler or a compiler, though we usually think of compilers in association with high-level programming language that are abstracted further from the CPU instructions.
Building a complete program involves writing source code for the program in either assembly or...
What's the rationale for null terminated strings?
... by a
special character, which B spelled
*e. This change was made partially
to avoid the limitation on the length
of a string caused by holding the
count in an 8- or 9-bit slot, and
partly because maintaining the count
seemed, in our experience, less
convenient than using a terminato...
Is there a way to rename an Xcode 4 scheme?
I've been looking all over Xcode for this, but I can't find any place that allows you to rename an existing scheme in Xcode 4. Is this even possible?
...
Adding a favicon to a static HTML page
...t's 16x16px and it's sitting in the same directory as the HTML file; it's called favicon.ico) as the "tab" icon as it were? I have read up on Wikipedia and looked at a few tutorials and have implemented the following:
...
When should I use @classmethod and when def method(self)?
...fine functions in classes. The author seems to use them both very intentionally. The first one is one I myself use a lot:
3...
Difference between setUp() and setUpBeforeClass()
....
So let's assume you had three tests in your class, the order of method calls would be:
setUpBeforeClass()
(Test class first instance constructed and the following methods called on it)
setUp()
test1()
tearDown()
(Test class second instance constructed and the following methods ...