Category: Ruby

Ruby, a scripting language created for simple and fast object-oriented programming (object-oriented programming), was developed by Japanese Yukihiro Matsumoto in the 1990s and complies with the GPL agreement and Ruby License. Its inspiration and features come from Perl, Smalltalk, Eiffel, Ada, and Lisp languages. The Ruby language itself has also developed Ruby language alternatives to other platforms such as JRuby (Java platform) and IronRuby (.NET platform). The author of Ruby started writing Ruby on February 24, 1993, and it was not officially released to the fj (news group) until December 1995. Because Perl is pronounced the same as the June birthstone pearl, Ruby is named after the July birthstone ruby.

Ruby-on-rails – Rails 3 – Custom XML Response

Currently I am using this:

if @part.save
format.xml {render :xml => @part, :status => :created, :location => @part }
else
format.xml {render :xml => @part.errors, :status => :unprocessable_

October 6, 2021By Simo Ruby Custom, rails, response, ruby, XMLLeave a Comment

Ruby-on-rails – the difference between “where” and “find”

This is almost answered in Difference Between find and Where with Relationships, but it is not complete. (Please note how I change the title of the question cleverly!)
I do a query

a = Libat

October 6, 2021By Simo Ruby between, Difference, rails, rubyLeave a Comment

Ruby – How do I learn in class?

class X
def initialize
@name = “Bob”
end
blah blah
end
puts X.new # I want this to print X:Bob
puts [X.new, X.new] # I want this to print [X:Bob, X:Bob] to_s method of overriding clas

October 6, 2021By Simo Ruby classroom, How, learning, rubyLeave a Comment

ruby-on-rails – div_for：NoMethodError

I am trying a ror tutorial, and I encountered the following line of code:

index.html.erb:

<%= render :partial => @players %> _player.html.erb:

<% div_for player do% >
<%= pl

October 6, 2021By Simo Ruby div, nomethoderror, rails, rubyLeave a Comment

Ruby – YM4R cannot be converted to a string of rails3

This is some background of my question:

I am on Snow Leopard
I installed RVM (using ruby1.9.2-head to install )
I am using rails3
I installed ym4r using this http://github.com/guilleiguaran/y

August 22, 2021By Simo Ruby conversion, rails, rails3, ruby, string, Unable, YM, YM4RLeave a Comment

Ruby – Rails Model: Validates_Unique Ness_OF Will not delete the endless space before a unique check? Isn’t the front guide?

Suppose I implement validates_uniqueness_of on the username. If the name’maddy’ already exists, then it will accept the value’maddy’ as the unique value instead of’maddy’. It should remove both sid

August 22, 2021By Simo Ruby Before, check, delete, model, no, not, preamble, rails, ruby, space, trailing space, Unique, uniqueess, validatesLeave a Comment