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Rails: How can I set default values in ActiveRecord?
....0.3 I get the following warning in the console:
DEPRECATION WARNING: Base#after_initialize has been deprecated, please use Base.after_initialize :method instead. (called from /Users/me/myapp/app/models/my_model:15)
Therefore I'd say write an after_initialize callback, which lets you default ...
.NET console application as Windows service
...const string ServiceName = "MyService";
public class Service : ServiceBase
{
public Service()
{
ServiceName = Program.ServiceName;
}
protected override void OnStart(string[] args)
{
Program.Start(args);
}
prot...
Are GUID collisions possible?
I'm working on a database in SQL Server 2000 that uses a GUID for each user that uses the app it's tied to. Somehow, two users ended up with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision stil...
Removing fields from struct or hiding them in JSON Response
...eople seem to miss that the OP asked for fields to be dynamically selected based on the caller-provided list of fields. You can't do this with the statically-defined json struct tag.
If what you want is to always skip a field to json-encode, then of course use json:"-" to ignore the field (also not...
Which Eclipse files belong under version control?
...Some projects, like those using Maven, like to generate the .project files based on POMs.
That said, other than that - .metadata should NOT be in source control. Your project will have to make a determination about whether projectdir/.settings does, based on how you plan to manage standards and suc...
How can I get nth element from a list?
... list), lists may in fact not be the proper data structure. For O(1) index-based access there are more efficient alternatives, such as arrays or vectors.
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Java equivalent of C#'s verbatim strings with @
...esn't have verbatim string literals.
If you want a Java-like (and Java-VM-based) language that does, however, you might want to look at Groovy which has various forms of string literal.
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What is the main difference between Inheritance and Polymorphism?
...a different way in between parent class and its sub classes, and call them based on situation are Polymorphism,. Am I correct?
– Muhammad Raihan Muhaimin
Jun 20 '13 at 16:55
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Does Git publicly expose my e-mail address?
...b can remember even PR commits on a deleted branch that were merged sing rebase (and so, do not expose the email/name anywhere in the repo except on the PR web page). If the PR was merged, I don't know any way to reverse the commits (if it is still open you can rebase and force push).
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Is the Javascript date object always one day off?
...ar
new Date(2011, 0); // Normal behavior as months in this case are zero based.
=> // Sat Jan 01 2011 00:00:00 GMT-0700 (MST)
Get the last month and day of a year
new Date((2011 + 1), 0, 0); // The second zero roles back one day into the previous month's last day.
=> // Sat Dec 31 201...