Rails - May 2009 - Capitalize first letter of each word

I am trying to capitalize first letter of each word in a string of
words, which is in a given string. I see there is a reference to this
at:

http://www.java2s.com/Code/Ruby/String/Addtwomethodtostringclasstocapitalizefirstletter.htm

which states to add two method to string class to capitalize first
letter


class String
  def capitalize_first_letter
    self[0].chr.capitalize + self[1, size]
  end

  def capitalize_first_letter!
    unless self[0] == (c = self[0,1].upcase[0])
      self[0] = c
      self
    end
  end
end

My question is, if I create this String class -- what is it? Is it a
model? A helper? Where in the world would you put this creature in a
Rails framework? Thanks, Janna

Well, those two methods won''t give you what you want, if you really
want
to capitalize the first letter of every word in a sentence.  Also, if you
just want to capitalize the first letter of the string, the built-in
capitalize method will do that for you:
''some string''.capitalize => ''Some string''

If you want to capitalize each word in a string, you could do this (a naive
approach):

''some string''.split('' '').map {|w|
w.capitalize }.join('' '')

If you then wanted to make this built-in to the String class, as you were
referencing in your original request, you could add a method that does this
to the String class by reopening it (like the example you posted):

class String
  def cap_words
    self.split('' '').map {|w| w.capitalize }.join(''
'')
  end
end

You could put this snippet of code in a file in config/initializers or (as
my preferred approach would be) in a file in lib (like
lib/extensions/string.rb) that is then required via an initializer (like
config/initializers/requires.rb): require ''extensions/string''

Now you have reopened String to add this method.  Whether that''s a good
idea
is another matter entirely. :)

--
Benjamin Curtis
http://railskits.com/ - Ready-made Rails code
http://catchthebest.com/ - Team-powered recruiting
http://www.bencurtis.com/ - Personal blog



On Tue, May 26, 2009 at 11:48 AM, JannaB
<mistressjanna-PkbjNfxxIARBDgjK7y7TUQ@public.gmane.org> wrote:
>
> I am trying to capitalize first letter of each word in a string of
> words, which is in a given string. I see there is a reference to this
> at:
>
>
>
http://www.java2s.com/Code/Ruby/String/Addtwomethodtostringclasstocapitalizefirstletter.htm
>
> which states to add two method to string class to capitalize first
> letter
>
>
> class String
>  def capitalize_first_letter
>    self[0].chr.capitalize + self[1, size]
>  end
>
>  def capitalize_first_letter!
>    unless self[0] == (c = self[0,1].upcase[0])
>      self[0] = c
>      self
>    end
>  end
> end
>
> My question is, if I create this String class -- what is it? Is it a
> model? A helper? Where in the world would you put this creature in a
> Rails framework? Thanks, Janna
> >
>
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On May 26, 2009, at 11:48 AM, JannaB wrote:
>
> I am trying to capitalize first letter of each word in a string of
> words, which is in a given string. I see there is a reference to this
> at:
>
String#titleize is your friend...

 >> "this is some string. here is another! a question? oh
my.".titleize
=> "This Is Some String. Here Is Another! A Question? Oh My."




>
http://www.java2s.com/Code/Ruby/String/Addtwomethodtostringclasstocapitalizefirstletter.htm
>
> which states to add two method to string class to capitalize first
> letter
>
>
> class String
>  def capitalize_first_letter
>    self[0].chr.capitalize + self[1, size]
>  end
>
>  def capitalize_first_letter!
>    unless self[0] == (c = self[0,1].upcase[0])
>      self[0] = c
>      self
>    end
>  end
> end
>
> My question is, if I create this String class -- what is it? Is it a
> model? A helper? Where in the world would you put this creature in a
> Rails framework? Thanks, Janna
> >

Indeed... I got wrapped around the axle of re-opening classes in Ruby and
forgot to mention the Rails extensions. :)
--
Benjamin Curtis
http://railskits.com/ - Ready-made Rails code
http://catchthebest.com/ - Team-powered recruiting
http://www.bencurtis.com/ - Personal blog



On Tue, May 26, 2009 at 12:34 PM, Philip Hallstrom
<philip-LSG90OXdqQE@public.gmane.org> wrote:
>
>
>
> On May 26, 2009, at 11:48 AM, JannaB wrote:
>
> >
> > I am trying to capitalize first letter of each word in a string of
> > words, which is in a given string. I see there is a reference to this
> > at:
> >
>
> String#titleize is your friend...
>
>  >> "this is some string. here is another! a question? oh
my.".titleize
> => "This Is Some String. Here Is Another! A Question? Oh My."
>
>
>
>
>
> >
>
http://www.java2s.com/Code/Ruby/String/Addtwomethodtostringclasstocapitalizefirstletter.htm
> >
> > which states to add two method to string class to capitalize first
> > letter
> >
> >
> > class String
> >  def capitalize_first_letter
> >    self[0].chr.capitalize + self[1, size]
> >  end
> >
> >  def capitalize_first_letter!
> >    unless self[0] == (c = self[0,1].upcase[0])
> >      self[0] = c
> >      self
> >    end
> >  end
> > end
> >
> > My question is, if I create this String class -- what is it? Is it a
> > model? A helper? Where in the world would you put this creature in a
> > Rails framework? Thanks, Janna
> > >
>
>
> >
>
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titleize --->>

def titleize(word)
  humanize(underscore(word)).gsub(/\b(''?[a-z])/) { $1.capitalize }
end

output:

"at&t" --> "At&T"  (not the desired output)
"man-eater --> "Man Eater" (not the desired output)

"at&t".split('' '').map {|w| w.capitalize
}.join('' '')  ---> "At&t" seems
to be better approach.

--
Amit


On May 26, 4:56 pm, Benjamin Curtis
<benjamin.cur...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Indeed... I got wrapped around the axle of re-opening classes in Ruby and
> forgot to mention the Rails extensions. :)
> --
> Benjamin Curtishttp://railskits.com/- Ready-made Rails
codehttp://catchthebest.com/- Team-powered recruitinghttp://www.bencurtis.com/-
Personal blog
>
> On Tue, May 26, 2009 at 12:34 PM, Philip Hallstrom
<phi...-LSG90OXdqQE@public.gmane.org> wrote:
>
> > On May 26, 2009, at 11:48 AM, JannaB wrote:
>
> > > I am trying to capitalize first letter of each word in a string
of
> > > words, which is in a given string. I see there is a reference to
this
> > > at:
>
> > String#titleize is your friend...
>
> >  >> "this is some string. here is another! a question? oh
my.".titleize
> > => "This Is Some String. Here Is Another! A Question? Oh
My."
>
>
>http://www.java2s.com/Code/Ruby/String/Addtwomethodtostringclasstocap...
>
> > > which states to add two method to string class to capitalize
first
> > > letter
>
> > > class String
> > >  def capitalize_first_letter
> > >    self[0].chr.capitalize + self[1, size]
> > >  end
>
> > >  def capitalize_first_letter!
> > >    unless self[0] == (c = self[0,1].upcase[0])
> > >      self[0] = c
> > >      self
> > >    end
> > >  end
> > > end
>
> > > My question is, if I create this String class -- what is it? Is
it a
> > > model? A helper? Where in the world would you put this creature
in a
> > > Rails framework? Thanks, Janna
>
>