DZone Snippets: Jnunemaker's Code Snippets

no www

jnunemaker () — Thu, 30 Nov 2006 07:00:28 GMT



RewriteCond %{HTTP_HOST} ^www\.domain\.com$ [NC]

RewriteRule ^(.*)$ http://domain.com/$1 [R=301,L]

SSH Key Pairs Stuff

jnunemaker () — Sun, 27 Aug 2006 22:47:31 GMT

//allows for copying of ssh keys



ssh-keygen -t dsa

ssh user@host 'cat >> .ssh/authorizedkeys' < .ssh/id_dsa.pub

Easy default options for methods in Ruby

jnunemaker () — Thu, 27 Jul 2006 17:27:04 GMT



def my_method(opts={})

  {:arg_one => 'foo', :arg_two => 'two'}.merge(opts)

end

Tag Cloud in Ruby

jnunemaker () — Thu, 06 Jul 2006 17:01:58 GMT

The options.delete with the default looks mildly interesting. Just wanted to remember that.



def font_size_for_tag_cloud( total, lowest, highest, options={} )

 return nil if total.nil? or highest.nil? or lowest.nil?

 #

 # options

 maxf = options.delete( :max_font_size ) || 14

 minf = options.delete( :min_font_size ) || 11

 maxc = options.delete( :max_color ) || [ 0, 0, 0 ]

 minc = options.delete( :min_color ) || [ 156, 156, 156 ]

 hide_sizes = options.delete( :hide_sizes )

 hide_colours = options.delete( :hide_colours )

 #

 # function to work out rgb values

 def rgb_color( a, b, i, x)

  return nil if i <= 1 or x <= 1

  if a > b

   a-(Math.log(i)*(a-b)/Math.log(x)).floor

  else

   (Math.log(i)*(b-a)/Math.log(x)+a).floor

  end

 end

 #

 # work out colours

 c = []

 (0..2).each { |i| c << rgb_color( minc[i], maxc[i], total, highest ) || nil }

 colors = c.compact.empty? ? minc.join(',') : c.join(',')

 #

 # work out the font size

 spread = highest.to_f - lowest.to_f

 spread = 1.to_f if spread <= 0

 fontspread = maxf.to_f - minf.to_f

 fontstep = spread / fontspread

 size = ( minf + ( total.to_f / fontstep ) ).to_i

 size = maxf if size > maxf

 #

 # display the results

 size_txt = "font-size:#{ size.to_s }px;" unless hide_sizes

 color_txt = "color:rgb(#{ colors });" unless hide_colours

 return [ size_txt, color_txt ].join

end

pop2imap

jnunemaker () — Tue, 25 Apr 2006 04:07:31 GMT

// description of your code here



pop2imap --host1 westk.org --user1 rod@westk.org --password1 password --host2 orderedserver.com --user2 rod@addictedtonew.com --password2 password

Easy Selects in Ruby on Rails

jnunemaker () — Mon, 10 Apr 2006 17:37:57 GMT

Via http://habtm.com/articles/2006/04/10/handy-select-functions



module ActiveRecord

  class Base  

    def self.to_select(conditions = nil)

      find(:all).collect { |x| [x.name,x.id] }

    end

  end

end



class Array

  def to_select

    self.collect { |x| [x.name,x.id] }

  end

end

Restart apache on Mac OS X

jnunemaker () — Mon, 10 Apr 2006 17:36:32 GMT



sudo apachectl restart

Change iChat status from terminal.app

jnunemaker () — Mon, 10 Apr 2006 17:27:30 GMT



osascript ichatloc.scpt "This is a test"

Add MySQL User

jnunemaker () — Mon, 10 Apr 2006 17:25:46 GMT

# add a mysql user (http://dev.mysql.com/doc/refman/5.0/en/grant.html)



grant all privileges on *.* to 'user'@'localhost' identified by 'password' with grant option;

flush priveleges;

Creating a PDF using iText and ColdFusion

jnunemaker () — Tue, 07 Mar 2006 01:54:50 GMT

// description of your code here





// create document

document 		= CreateObject("java", "com.lowagie.text.Document");

document.init();



// writer

fileIO 			= CreateObject("java", "java.io.FileOutputStream");

fileIO.init(pdf_path);

writer 			= CreateObject("java", "com.lowagie.text.pdf.PdfWriter");

writer.getInstance(document, fileIO);

document.open();



// newsinfo header image

Image 			= CreateObject("java", "com.lowagie.text.Image");

jpg 			= Image.getInstance(header_image);

jpg.setAbsolutePosition(28, 713);

jpg.setDpi(300,300);

document.add(jpg);



// top margin; dumb i know but i was in a hurry

paragraph = CreateObject("java", "com.lowagie.text.Paragraph");

paragraph.init(" ");

for (i=0; i lt 9; i=i+1) {

	document.add(paragraph);

}



// the fonts

FontFactory 	= createobject("java", "com.lowagie.text.FontFactory");

Font 			= createObject("java", "com.lowagie.text.Font");

TimesLargeBI 	= Font.init(Font.TIMES_ROMAN, 14.0, Font.BOLDITALIC);

TimesNormal 	= Font.init(Font.TIMES_ROMAN, 12.0);



// all the text

paragraph 		= CreateObject("java", "com.lowagie.text.Paragraph");



paragraph.init("Hello World!", TimesLargeBI);

paragraph.setIndentationLeft(indentation_left);

paragraph.setIndentationRight(indentation_right);

document.add(paragraph);



paragraph.init("#dateFormat(now(), 'long')#", TimesNormal);

paragraph.setIndentationLeft(indentation_left);

paragraph.setIndentationRight(indentation_right);

document.add(paragraph);



document.close();