Well, there are many many times (in fact always :P) that you want active record sql queries to log into STDOUT and especially when you are working in the rails console. I didn’t know how to do this and after a while of Google searching I stumbled upon this command that you type every time you open the rails console:
I assume that many of you have written (and still writing) helpers for your views in your awesome Rails projects. A helper, as you all know, is a module which contains methods that are vital for the simplification and the dryness of your views. And because helpers are meant to be used within your views they often contain html code (either plain or ruby code that produces html) which, as you may have noticed, is not very flexible.
In Rails 3 (contrary to Rails 2) Strings are automatically escaped using ERB::Util.h(string) and the reason is simple. In 95% of the cases you won’t have to print html code inside ruby strings like this:
< %="<h1>Hello World"%>
In Rails 2 for this 95% of the cases you had to call the “h” helper to escape the output which was really annoying and insecure (if you forgot one).
Although this was the case for views, constructing a helper that prints html content became tricky in Rails 3. If you want your html content to stay unescaped it has to be an ActiveSupport::SafeBuffer instance instead of a String instance. To achieve this there are two solutions: can you buy neurontin online
Well I can’t recall when (and why) but one time I was writing a view in a Rails project and needed to write a case statement (of course I could have done it with usual if / else /elsif statement, but the case statement seemed more natural). My first try (and I remember I was pretty confident that this was the way to go) had gone like this: how to buy neurontin online
Today we are going to talk a little bit about the infamous procs and lambdas in Ruby and the differences between them. Well, you may already know that a proc and a lambda are objects of the same class:
p, l = proc{}, lambda{}
p.class
#=> Proc
l.class
#=> Proc
proc an alias for lambda ? buy gabapentin 800 mg
It is a fact that sometimes we want to achieve a database design similar to the design of classes and subclasses in OOP. This design is what we call Multiple Table Inheritance (MTI). The idea behind it is to have a main table which will hold all the basic attributes of the underlying models and separate tables for the underlying models each of them will hold specific attributes special for each model.
Enough of the theory, let’s get our hands dirty and make it work in the Rails framework. buy gabapentin without prescription
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