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How to execute a raw update sql with dynamic binding in rails
... to do this generically. You could try accessing the underlying connection and using it's methods, e.g. for MySQL:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st.close
I'm not sure if there are other ramifications t...
Why create “Implicitly Unwrapped Optionals”, since that implies you know there's a value?
...ase of an object that may have nil properties while it's being constructed and configured, but is immutable and non-nil afterwards (NSImage is often treated this way, though in its case it's still useful to mutate sometimes). Implicitly unwrapped optionals would clean up its code a good deal, with r...
Difference between session affinity and sticky session?
What is the difference between session affinity and sticky session in context of load balancing servers?
7 Answers
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Using Custom Domains With IIS Express
...\My Documents\IISExpress\config\applicationhost.config (Windows XP, Vista, and 7) and edit the site definition in the <sites> config block to be along the lines of the following:
<site name="DevExample" id="997005936">
<application path="/" applicationPool="Clr2IntegratedAppPool"&...
How to pass a variable from Activity to Fragment, and pass it back?
I am currently making an android app, and I want to pass a date between activity and fragment.
My activity has a button, which opens the fragment: DatePickerFragment.
...
How to force a Solution file (SLN) to be opened in Visual Studio 2013?
...udio Version Selector" as the default fixed it. Now 2012 opens in 2012 ide and 2013 opens in 2013 ide. (I'm using windows 7 64bit)
– Peter Flannery
Oct 31 '13 at 15:08
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Spring vs EJB. Can Spring replace EJB? [closed]
...would depend on the skills of your team. If you have no Spring expertise, and lots of EJB experience, then maybe sticking with EJB 3.0 is a good move.
App servers written to support the EJB standard can, in theory, be ported from one compliant Java EE app server to another. But that means staying...
Naming “class” and “id” HTML attributes - dashes vs. underlines [closed]
...
Use Hyphens to ensure isolation between your HTML and JavaScript.
Why? see below.
Hyphens are valid to use in CSS and HTML but not for JavaScript Objects.
A lot of browsers register HTML Ids as global objects on the window/document object, in big projects, this can become...
Difference between MVC 5 Project and Web Api Project
I am new to ASP.NET MVC and Web API and trying to get the basics. AFAIK, we have project templates in VS 2013, named as MVC , Web API and Both of them together .
...
Thread pooling in C++11
...r function with an infinite loop, constantly waiting for new tasks to grab and run.
Here is how to attach such function to the thread pool:
int Num_Threads = thread::hardware_concurrency();
vector<thread> Pool;
for(int ii = 0; ii < Num_Threads; ii++)
{ Pool.push_back(thread(Infinite_loop...