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Rails: where does the infamous “current_user” come from?
..., it's something like:
class ApplicationController < ActionController::Base
def current_user
return unless session[:user_id]
@current_user ||= User.find(session[:user_id])
end
end
This assumes that the User class exists, e.g. #{Rails.root}/app/models/user.rb.
Updated: avoid additi...
Download data url file
I'm playing with the idea of making a completely JavaScript-based zip/unzip utility that anyone can access from a browser. They can just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in.
...
How can I trim leading and trailing white space?
...code to do this. Maybe the trimws regex is fast enough. stringr::str_trim (based on stringi) is also interesting in that it uses a completely independent internationalized string library. You'd think whitespace would be immune from problems with internationalization, but I wonder. I've never seen a ...
WaitAll vs WhenAll
...ception : Exception
{
public CustomException(String message) : base(message)
{ }
}
static void WaitAndThrow(int id, int waitInMs)
{
Console.WriteLine($"{DateTime.UtcNow}: Task {id} started");
Thread.Sleep(waitInMs);
throw new CustomException(...
Looking for simple Java in-memory cache [closed]
...hing library. Caffeine is a high performance, near optimal caching library based on Java 8. Caffeine provides an in-memory cache using a Google Guava inspired API
– Slavus
Apr 16 at 6:19
...
Converting BigDecimal to Integer
...s the wrong answer.
Making it better
Let's use the following assumptions based on the other answers.
We are okay with losing precision and truncating the value because that's what intValueExact() and auto-boxing do
We want an exception thrown when the BigDecimal is larger than the Integer range ...
Best way to trim strings after data entry. Should I create a custom model binder?
...r entered string fields to be trimmed before they're inserted into the database. And since I have many data entry forms, I'm looking for an elegant way to trim all strings instead of explicitly trimming every user supplied string value. I'm interested to know how and when people are trimming stri...
Difference between webdriver.Dispose(), .Close() and .Quit()
... I also noticed that the IEDrivers that are used for working with IE based automation does not exit if you use driver.close() method. I had to use driver.quit() to terminate it. It is because the quit() method also appears to clean up resources unlike close(), although, in my example, I have a...
How do I format date and time on ssrs report?
...& ":"
& Right("00" & CStr(Minute(Globals!ExecutionTime)), 2)
Based on comment:
=Format(CDate(Globals!ExecutionTime), "MM-dd-yyyy hh:mm.ss")
OR
=Format(CDate(Globals!ExecutionTime), "MM-dd-yyyy HH:mm.ss")
...
Detach many subdirectories into a new, separate Git repository
This question is based on Detach subdirectory into separate Git repository
10 Answers
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