Rack Developers Notebook

Download the book from : http://www.meetup.com/silicon-valley-ruby/files/

How to install MongoDB on OS X

Download, unpack, and install the pre-compiled 64-bit binaries:

curl -O http://downloads.mongodb.org/osx/mongodb-osx-x86_64-1.6.2.tgz
tar xzf mongodb-osx-x86_64-1.6.2.tgz
sudo mv mongodb-osx-x86_64-1.6.2 /opt/local/mongodb
sudo mkdir /opt/local/mongodb_data /var/log/mongodb
sudo chown -R root /opt/local/mongodb

(If you’re on a 32-bit machine, substitute in i386 for each x86_64 above.)

Next, you’ll want to make a config file so you can change the server’s options without fiddling with command-line arguments.

Save as: /opt/local/mongodb/mongod.conf

# Store data alongside MongoDB instead of the default, /data/db/
dbpath = /opt/local/mongodb_data

# Only accept local connections
bind_ip = 127.0.0.1

Now, we’ll make a launchd job to register the server as an OS X daemon. launchd will start the server at startup, stop it before shutdown, make sure it stays up, and redirect its output to a nice log file.

Save as: /Library/LaunchDaemons/org.mongodb.mongod.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" 
  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>Label</key>

  <string>org.mongodb.mongod</string>
  <key>ProgramArguments</key>
  <array>
    <string>/opt/local/mongodb/bin/mongod</string>

    <string>run</string>
    <string>--config</string>
    <string>/opt/local/mongodb/mongod.conf</string>
  </array>

  <key>RunAtLoad</key>
  <true/>
  <key>KeepAlive</key>
  <true/>
  <key>WorkingDirectory</key>

  <string>/opt/local/mongodb</string>
  <key>StandardErrorPath</key>
  <string>/var/log/mongodb/output.log</string>
  <key>StandardOutPath</key>

  <string>/var/log/mongodb/output.log</string>
</dict>
</plist>

Now we just need to load the launchd job:

sudo launchctl load /Library/LaunchDaemons/org.mongodb.mongod.plist

And that should do it! Try visiting http://localhost:28017 to see the status console for your database.

One last thing: you should probably add /opt/local/mongodb/bin to your $PATH. That way you can use the other binaries that ship with MongoDB, like the mongo console, mongoexport, and so on.

You can adjust your path the regular way by editing your shell’s profile, or you can use this nice paths.d mechanism that OS X provides:

sudo sh -c 'echo "/opt/local/mongodb/bin" > /etc/paths.d/mongodb'

Install Postgresql server on Ubuntu 10.04

1) sudo apt-get install postgresql
2) sudo apt-get install postgresql-client
3) sudo /etc/init.d/postgresql-8.4 restart
4) ALTER USER postgres with encrypted password 'your_password';
5) sudo /etc/init.d/postgresql-8.4 restart

Install Java 6 on Ubuntu 10.04

1) sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
2) sudo apt-get update
3) sudo aptitude install curl sun-java6-bin sun-java6-jre sun-java6-jdk

Reference:

Install Java 6 on Ubuntu

Cloning a VM with mutiple snapshots

As of 3.0.8 (or before) the VBoxManage clonehd command can clone any snapshot of a hard disk or clone the Current State of a hard disk. The resulting VDI file is flattened (it does not have any other snapshots attached).
You need to find the UUID of the Current State image file, or of the Snapshot image file (NOT the UUID of the snapshot!)
To clonehd the Current State of a disk:

* Open the Virtual Media Manager (Menu: File>Virtual Media Manager).
* Navigate to the hard disk you want to clone and fully expand the tree (use * key on numeric keypad).
* Find the {hexUUID}.vdi file that is attached to the VM you want to clone the Current State of.
It will be (one of) the leaf files at the end of a branch.
When you select it, the 'Attached to:' text at the bottom of the window will say:
'Attached to: ', without any (snaphot name) in brackets after it.
* Click the filename to the right of the 'Location:' displayed at the bottom of the window.
* Ctrl+C / Copy to copy the text to the clipboard, which will be something like:
(path){b6441469-5ccb-418c-8fdd-73c5e1a17314}.vdi
* Ctrl+V / Paste and extract the hexUUID value (removing the {} brackets) and run clonehd to clone it!
CODE: C:> VBoxManage clonehd b6441469-5ccb-418c-8fdd-73c5e1a17314 CloneDisk.vdi

To clonehd a snapshot of a disk:

* Find the {hexUUID}.vdi file that is attached to the VM (and Snapshot) you want to clone.
* It will be one of the files along a branch.
When you select it, the 'Attached to:' text at the bottom of the window will say:
'Attached to: ()', with (snaphot name) in brackets after it.
* Follow the instructions above for cloning the current state of a disk.



Reference:

This thread

VirtualBox Shared Folders between Ubuntu 10.04 Guest and Mac Host

You’ll need the VirtualBox (1.6 or above) with Guest Additions installed in Ubuntu.

* With the Virtual Machine powered off and selected in VirtualBox, go to:
Machine > Settings > Shared Folders
* For “Folder Path”, click the icon to browse for the folder you want to share.
* For “Folder Name”, enter a name to describe the share. Let's say vshare
* Click “OK” and start the virtual machine again.
* Create a mount point which is basically an empty folder. Example: /vmnt on the Ubuntu guest VM.
* Fire up the terminal and type:
sudo mount -t vboxsf folder_name path_to_mount_pointfolder_name is the name you typed in earlier to describe the share. Example: sudo mount -t vboxsf vshare /vmnt
* You should be able to browse the shared folder now.

Reference:

VirtualBox Shared Folders on Ubuntu

How to install KDevelop on Ubuntu 10.4

KDevelop is a decent editor for Rails projects. It gives a nice class browser view of your Rails project.

To resolve the error:
E: Package kdevelop has no installation candidate

before install, Go to :

1. Applications -> System Tools -> KPackage Edit
2. Settings -> Edit Software Sources -> Updates tab
3. Check "Unsupported Updates"
4. sudo apt-get update
5. Run : sudo apt-get install kdevelop

Alternate way:

1. sudo add-apt-repository ppa:kubuntu-ppa/backports
2. sudo apt-get update
3. sudo apt-get install kdevelop

To run KDevelop, just type kdevelop on the terminal

How to Install Guest Additions on CentOS 5.5

Prerequisite:

yum install yum-priorities
Make sure that yum-priorities is enabled by editing the /etc/yum/pluginconf.d/priorities.conf file, and ensuring that it contains the following lines:

[main]
enabled=1

Edit the .repo files in /etc/yum.repos.d/ and set up priorities by adding the line:

priority=N

to a repository entry, where N is an integer number from 1 to 99.
The recommended settings are:
[base], [addons], [updates], [extras] ... priority=1
[centosplus],[contrib] ... priority=2
Third Party Repos such as rpmforge ... priority=N (where N is > 10 and based on your preference)


Based on architecture: uname -i download the corresponding rpm into your downloads directory.

wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.1-1.el5.rf.i386.rpm

rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt rpm -K rpmforge-release-0.5.1-1.el5.rf.*.rpm

rpm -i rpmforge-release-0.5.1-1.el5.rf.*.rpm

yum check-update

Now you will be able to install dkms (You need sudo access to run these commands)


1) Devices > Install Guest Additions
2) Browse to the Guest Additions CD on the desktop, right click and open terminal. Run
sudo chmod +x VBoxLinuxAdditions-x86.run
3)yum install dkms
4) sudo yum install kernel-devel kernel-headers
sudo sh ./VBoxLinuxAdditions-x86.run

This will automatically switch VM to Seamless Mode and the resolution upgraded to 1024x768. You can now copy/paste from host to guest and vice-versa.

References:


How to Install Virtual Box Guest Additions for a Linux Guest

RPMForge

Getting Rails and Sinatra to Share Sessions - Part I

Introduction

This is the first part of a series of blog posts that will show you how to setup your machine so that you can share sessions between Rails and Sinatra apps.

This idea was inspired by the In a World of Middleware, Who Needs Monolithic Applications? Mountain West Ruby Conference 2009 talk given by Corey Donohoe of Engine Yard.

However I will not be using Hancock or Hancock Client for Single Sign On. I think it is too complicated. I want something simple. My motivation is to build Rack compliant apps that are very focused on doing one thing really well and combining them to create a mashup.

At the end of the talk Corey said that in a world of why do we even need Rails? My opinion is that Rails app must be the last app in your Rack Stack and must be focused on your Core Domain. Anything else must be built as a Rack app. Because it is independent of your business and can be re-used across all your web apps.

Installation and Configuration

Environment: Ruby 1.8.7 managed by RVM

1)
gem install passenger

2)
passenger-install-apache2-module

Note: Steps 1 and 2 does not use sudo

3)
sudo mkdir /usr/local/apache2/conf

Add the lines shown during installation to httpd.conf file and save it in the directory created above.

In my case it is:

LoadModule passenger_module /Users/bparanj/.rvm/gems/ruby-1.8.7-p299/gems/passenger-2.2.15/ext/apache2/mod_passenger.so
PassengerRoot /Users/bparanj/.rvm/gems/ruby-1.8.7-p299/gems/passenger-2.2.15
PassengerRuby /Users/bparanj/.rvm/rubies/ruby-1.8.7-p299/bin/ruby

4) Setup folder to hold vhosts

sudo mkdir /usr/local/apache2/conf/vhosts

5) Add the following to the httpd.conf

NameVirtualHost *
Include /usr/local/apache2/conf/vhosts/*

6) Add virtual hosts to a file virtual_hosts.conf under /usr/local/apache2/conf/vhosts directory

# Example App

ServerName app.test
DocumentRoot /Users/benr/Rails/app/public
RailsEnv development



# Example App 2

ServerName app2.test
DocumentRoot /Users/benr/Rails/app2/public
RailsEnv development


7) Edit /etc/hosts file

sudo vi /etc/hosts

and add:

127.0.0.1 app.test app2.test

8)
sudo apachectl graceful or

sudo apachectl start

9) To restart app, create a file under RAILS_ROOT/tmp/restart.txt

when you run touch on restart.txt your Rails app will be reloaded

References:

http://benr75.com/2008/04/12/setup-mod_rails-phusion-mac-os-x-leopard
http://www.modrails.com/videos/passenger.mov

error: Error running 'make ', please check. rvm/log/ruby-1.8.7-p299/make*.log

Step 1: Install readline.

1 curl -O ftp://ftp.cwru.edu/pub/bash/readline-6.0.tar.gz
2 tar -xvzf readline-6.0.tar.gz
3 cd readline-6.0
4 ./configure
5 make
6 sudo make install

Step 2: Install Ruby 1.8.7
rvm install 1.8.7 -C --enable-shared,--with-readline-dir=/usr/local

RSpec API - The Good and the Bad

The Good:

Operator Expressions : Good use of meta-programming

The Bad:

#1. Have method has bubble words and it complicates the API. It increases the noise in the code. Make the API minimal. (Bubble word - Words that does not do anything, but is used only for readability)

#2. Leaky API : render method is leaky because it depends on the argument passed in to the outer method. Basically it has parametric coupling. Developer has to *remember* the coupling in order to use the API.

undefined method `visit' for cucumber

Fix: Include the following configuration in features/support/env.rb

require 'webrat'
require 'webrat/core/matchers'

Webrat.configure do |config|
config.mode = :rack
config.open_error_files = false # Set to true if you want error pages to pop up in the browser
end

World(Webrat::Methods)
World(Webrat::Matchers)

This also fixes the error : "no such file to load -- action_controller/integration"

Getting RSpec Book Rails app working on Rails 3.0 Beta 4

1. Create a new Rails app called blog, skip test unit since we will be using RSpec
rails new blog --skip-testunit

2. Edit gem file :

group :test do
gem 'rspec-rails', '>= 2.0.0.beta.10'
gem 'webrat'
gem 'selenium-client'
gem 'database_cleaner'
gem 'rspec-rails'
gem 'cucumber'
gem 'cucumber-rails'
gem 'rspec'
end

3. From app's root directory, run:

bundle install

4. rails g rspec:install

5. rails g cucumber:install

6. rails g cucumber:skeleton --rspec --webrat

7. rails g cucumber:feature

8. script/cucumber --tag @focus

9. script/cucumber -t @focus

10. rails g model movie showtime_date:date showtime_time:time
11. rake db:migrate
12. rake db:test:prepare
13. cucumber -t @focus
14. cucumber

Reference:

Rails 3, RSpec, and Cucumber

How to add a source to Ruby gems

gem sources -a http://gems.github.com

To remove a source:

gem sources -r http://gems.github.com

Run:
gem env

to see the sources that is currently in your Ruby gems.

Extremely Simple Alternative to AutoTest

I am reading the Rails 3 in Action by Yehuda. To run the sample code I customized the stakeout.rb to output the results of the test when specs get run whenever the file is changed.

1. Copy the source to a directory that is in your path:

#!/usr/bin/env ruby
if ARGV.size < 2
puts "Usage: stakeout.rb [files to watch]+"
exit 1
end

command = ARGV.shift
files = {}

ARGV.each do |arg|
Dir[arg].each { |file|
files[file] = File.mtime(file)
}
end

loop do

sleep 1

changed_file, last_changed = files.find { |file, last_changed|
File.mtime(file) > last_changed
}

if changed_file
files[changed_file] = File.mtime(changed_file)
puts "=> #{changed_file} changed, running #{command}"
puts system(command)
puts "=> done"
end

end

2. chmod +x stakeout.rb

3. To run:

stakeout.rb "spec bacon_spec.rb" **/*

This will run the spec called back_spec.rb whenever any files found recursively from the current file is changed.

Reference:

Faster TDD with Stakeout.rb

Problem Installing Sqlite3-ruby on Snow Leopard

I was getting this error when I started the server. I had installed RVM, Ruby 1.9.1, Rails 3.0 Beta 4:

.rvm/gems/ruby-1.9.1-p378/gems/sqlite3-ruby-1.3.1/lib/sqlite3/sqlite3_native.bundle: dlopen(.rvm/gems/ruby-1.9.1-p378/gems/sqlite3-ruby-1.3.1/lib/sqlite3/sqlite3_native.bundle, 9): no suitable image found. Did find: (LoadError)
.rvm/gems/ruby-1.9.1-p378/gems/sqlite3-ruby-1.3.1/lib/sqlite3/sqlite3_native.bundle: mach-o, but wrong architecture - .rvm/gems/ruby-1.9.1-p378/gems/sqlite3-ruby-1.3.1
/lib/sqlite3/sqlite3_native.bundle


Resolution:

Uninstall sqlite3-ruby (1.3.1)
1. gem uninstall sqlite3-ruby

Install sqlite3-ruby version 1.2.5
2. gem install sqlite3-ruby --version 1.2.5

If you get the error:

no such file to load -- sqlite3

when running rake db:migrate

Edit the Gemfile for the line sqlite3-ruby as :

gem 'sqlite3-ruby', :require => 'sqlite3'

Installing Ruby 1.9.2 using RVM on Snow Leopard

When I tried to install Ruby 1.9.2
rvm install 1.9.2

I got :

error: Error running 'make ', please check /Users/bparanj/.rvm/log/ruby-1.9.2-rc2/make*.log
error: There has been an error while running make. Aborting the installation.

Steps to Resolve :

1. Install libxml

curl -O ftp://xmlsoft.org/libxml2/libxml2-2.7.7.tar.gz
tar zxvf libxml2-2.7.7.tar.gz
cd libxml2-2.7.7
./configure --with-python=/System/Library/Frameworks/Python.framework/Versions/2.3/
make &
sudo make install

2. Install libxslt

curl -O ftp://xmlsoft.org/libxslt/libxslt-1.1.26.tar.gz
tar xvzf libxslt-1.1.26.tar.gz
cd libxslt-1.1.26
./configure
make
sudo make install

3.
rvm install 1.9.2-head -C --enable-shared,--with-readline-dir=/opt/local,--build=x86_64-apple-darwin10

Reference:

Installing Ruby 1.9.2 with RVM on Snow Leopard

Tips:

#1 :
rvm 1.9.2-head --default

to make it 1.9.2 when you open new terminal or after reboot.

#2 :
To revert to system installed Ruby:

rvm system --default

uninitialized constant Mysql while running rake db:create

1. Uninstall the mysql gem

bparanj$ sudo gem uninstall mysql

Successfully uninstalled mysql-2.8.1

2. Installing the gem the right way on Snow Leopard
bparanj$ sudo env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
Building native extensions. This could take a while...
Successfully installed mysql-2.8.1
1 gem installed

3. Edit the gemfile and include the line:

gem 'mysql'

4. Run bundle install from the rails project directory:

mbp2:blog bparanj$ bundle install
Fetching source index from http://rubygems.org/
Using rake (0.8.7) from system gems
Using abstract (1.0.0) from system gems
Using activesupport (3.0.0.beta4) from system gems
Using builder (2.1.2) from system gems
Using i18n (0.4.1) from system gems
Using activemodel (3.0.0.beta4) from system gems
Using erubis (2.6.6) from bundler gems
Using rack (1.1.0) from bundler gems
Using rack-mount (0.6.6) from system gems
Using rack-test (0.5.4) from system gems
Using tzinfo (0.3.22) from system gems
Using actionpack (3.0.0.beta4) from system gems
Using mime-types (1.16) from system gems
Using polyglot (0.3.1) from system gems
Using treetop (1.4.8) from system gems
Using mail (2.2.5) from system gems
Using actionmailer (3.0.0.beta4) from system gems
Using arel (0.4.0) from system gems
Using activerecord (3.0.0.beta4) from system gems
Using activeresource (3.0.0.beta4) from system gems
Using bundler (0.9.26) from system gems
Using mysql (2.8.1) from system gems
Using thor (0.13.7) from bundler gems
Using railties (3.0.0.beta4) from system gems
Using rails (3.0.0.beta4) from system gems
Using sqlite3-ruby (1.3.0) from bundler gems
Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.

5. rake db:create will now work
mbp2:blog bparanj$ rake db:create
(in /Users/bparanj/projects/blog)
db/test.sqlite3 already exists

Include Vs Extend in Ruby

Include vs Extend

Include

Classes and modules can include modules and reuse the methods defined in the module. The method in the module is available as an instance method. The constants, methods and module variables are available once the module is mixed in.

Extend

You can extend an instance of any class with module. The method in the module is available as an instance method.

The difference is extend is only applicable for that particular instance which was extended. Where as the include is applicable to any instance of the class.

Screen cast IncludeExtend.mov

Addition to IncludeExtendRuby.mov

module Talkable
def talk
p "hi"
end
end

class Foo

end

Foo.extend Talkable

Foo.talk


If extend is used on the class instead of the object, the method becomes available as class method. The extend can be used inside the class or outside the class. Refer the screencast to see how it works.

Upgrading Snow Leopard to Rails 3.0 Beta 4

1. gem env

should be 1.3.6 or above

2. gem update --system

Update Ruby gems to the latest version

3. sudo gem install i18n tzinfo builder memcache-client rack rack-test rack-mount erubis mail text-format thor bundler i18n bundler

Install required gems for Rails 3.0

4. sudo gem install rails --pre

Installs Rails 3.0 Beta 4

5. sudo mkdir /usr/local/lib/ruby/gems/1.9.1/gems/rails-3.0.0.beta4/lib

Create the lib directory to resolve the following error

ERROR: While executing gem ... (Errno::ENOENT)
No such file or directory - lib

Installing Ruby 1.9.2 on Snow Leopard

1)

Install Readline:

curl -O ftp://ftp.cwru.edu/pub/bash/readline-6.0.tar.gz
tar -xvzf readline-6.0.tar.gz
cd readline-6.0
./configure --prefix=/usr/local
make
sudo make install

I ignored the message: install: you may need to run ldconfig

2)

Install Ruby 1.9.2

curl -O ftp://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.2-rc1.tar.gz
tar -xvzf ruby-1.9.2-rc1.tar.gz
cd ruby-1.9.2-rc1
./configure --prefix=/usr/local --enable-pthread --with-readline-dir=/usr/local --enable-shared
make
sudo make install
sudo make install-doc


I ignored the message: configure: WARNING: unrecognized options: --with-readline-dir

3) Update ~/.bash_profile with
export PATH="/usr/local/bin:/usr/local/sbin:/usr/local/mysql/bin:$PATH"

in the last line

Open a new window and check Ruby version: ruby -v
ruby 1.9.2dev (2010-07-02 revision 28524) [x86_64-darwin10.4.0]

Tracking Referrals

From Google Analytics Tracking for Mobile Apps page:

The Android 1.6 OS release supports the use of a referrer URL parameter in download links to the Android Market. The Google Analytics SDK for Android uses this parameter to automatically populate referral/campaign information in Google Analytics for your application. This enables the source of the application install to be recorded and associated with future pageviews and events.

When is Steve going to provide this feature to developers for iPhone OS?

How to convert .wav to .mp3

Use iTunes to import the .wav files. Go to preferences and change Import Settings -> Import Using to MP3 Encoder. Select all the .wav files to convert to .mp3 and go to Advanced -> Create mp3 version. Now just select one of the .wav file and go to "File -> Show in Finder", you will find all the converted mp3 files in the same folder.

You have to use iTunes to convert because the command line tool afconvert does not have the ability to convert to mp3.You will get the error Error: ExtAudioFileSetProperty ('cfmt') failed ('fmt?')

How to view only starred emails in Gmail

Type the following in the search box and hit search:

in:Starred in:Inbox

Migraine leaves British woman speaking with Chinese accent

"I spoke to my stepdaughter on the phone from hospital and she didn't recognize who I was. She said I sounded Chinese. Since then, I have had my friends hanging up on me because they think I'm a hoax caller ... The first few weeks of the accent was quite funny, but to think I am stuck with this Chinese accent is getting me down. My voice has started to annoy me now. It is not my voice."

Learn to speak in British Accent iPhone app:

More at National Post

How to reduce caf file size

afconvert -f caff -d LEI16@22100 -c 1 ./test.mp3 ./test.caf

I kept reducing the sampling rate from 44100 to 13100. Anything below 22100 seems to affect the quality of the audio.

You can also convert a caf file with a given sampling rate to another caf file with different sampling rate:

afconvert -f caff -d LEI16@22100 -c 1 ./test.caf ./test2.caf

Analyzing Your App Store Sales Statistics - Part II

AppStore Sales Vs AppViz

Clearly AppViz is the winner. Provides nice charts and downloads 13 weeks of data to your desktop and provides a clear interface.

Heartbeat Signed up for this site. After I login I don't see anything. Not easy to use or figure out how to generate reports. It takes too much time than it saves. If you have a different opinion do let me know.

Tap Mini from TapMetrics. I watched the demo. It seems to allow import. I don't like the drilling into different levels to view my data.

4 ways to capitalize on Google's real-time search results

Following tips to be tested for iPhone / iPad apps that is already in the app store.

From iMedia Connection:

To take advantage of the new real-time search results -- and minimize any potential negatives -- here are four fundamental steps for marketers:

* Keep positive messages about your brand or products alive in the online news media. Issue frequent press releases with positive news about your company and create positive viral content related to your brand or product that has the potential to be mentioned frequently on popular social networking sites and even featured in news stories.


* Be active on sites like Twitter, Facebook, MySpace, FriendFeed, Jaiku, and Identi.ca. Create positive messages about your brand or products in the online social media sites likely to appear in Google results. Promote positive news stories published on mainstream news sites that result from your press releases or viral content promotions, as well as positive viral content that you created yourself.


* Maintain an active presence in social networking and microblogging sites. Cultivate relationships and interact with influential users to enlist their help in spreading your positive message. In addition, be responsive to both positive and negative mentions of your brand or product to mitigate any negative press that may occur. (Note: This is not a job for an intern. Ensure you are represented on these sites by a professional with social media and public relations savvy.)


* Closely monitor news and real-time buzz sites for mentions of your brand or product so you can react if necessary. That means setting up accounts with Google Alerts, Yahoo Keyword News Alert, and Twitter Alerts and following them.

Analyzing Your App Store Sales Statistics

App Figures provides reporting of app sales. The graphing does not update when you change the period. Emailed the tech support. No progress has been made after a week. I do like the daily and weekly report email feature. I can set up so that all my partners get the reports emailed. The pricing seems to be reasonable: $5 / mo for 2 apps. $1.5 for each additional app that you want to track. It provides ranking of your app also.

App Sales Mobile This is available on Github. I downloaded it and ran it on Simulator. Not bad for something that is free. Nice charts and reports.

My App Sales I paid $27.70 (20 Euros) for this today. It's ok. It has lot more features. Provides data export and the option of creating html reports. I had to save the instruction to try the advanced features. The advanced features are not just one click from the app.

How to use Active Support Rails library in Ruby scripts

#!/usr/bin/ruby
require 'rubygems'
require 'active_support/inflector'

puts Inflector.singularize('inflections')

British Accent Training iPad App is now live!

The first Accent Reduction training iPad app in the app store. British Accent Training is a great tool to help you learn British Accent. You can practice your accent, pronunciation and intonation.

Taught by a native British English speaker Alison Pitman. It gives you enough time to record, playback and to repeat the lesson.

The best solution is to practice with a computer. I tried a simple sound recorder on a computer as well as a tape recorder, and it did not work - too complicated, involves too much button pressing.

You need a program which plays a phrase, then records you repeating it, then repeats the native speaker, then plays your recording, and does it all over again in a loop until you are satisfied.

You can hear your mistakes and you feel that you are correcting them.

This training will allow you to record and hear your own voice. Record your voice every week you use the training to see the transformation in your accent.

The app demonstrates each pronunciation with practice words and sentences which are simple and easily understood. More content will be added in later releases. If you buy at current price you will get updates for free. When more content is included the price will go up. BUY NOW.

How to prepend a character to a line

sed 's/^/"/'

will prepend the double quotes to the beginning of the text. I had to copy paste the character ^ for this to work on my Mac. Could not find on the Mac keyboard.

How to connect Windows XP machine to Mac Airport Extreme Wireless router

I bought a $150 PC from San Jose Salvation Army. It has 1 GB RAM, 40 GB hard drive with wireless card. This solves the headache of installing VMware, buying a licensed Windows and configuring etc.

First, make sure you are using WEP in your wireless router. Check the settings. If not, you have to change it to WEP in the router settings. It will prompt you for 13 character password. Once you change it, the router will reboot and the changes will be in effect. Now on your Windows machine just type the password (as alphanumeric characters, not as HEX) and you should be good to go.

Bladder Diary iPhone Released

Bladder Diary iPhone app will help you and your health care team figure out the causes of your bladder control trouble.

As long as you have your iPhone / iPod touch with you, you can record your bladder activity from anywhere and anytime.

Keeping a bladder diary (or "voiding diary") can help you and your doctor look for patterns to your bladder problems. You can track things like:

* How often you pass urine, and when
* How much urgency you feel each time
* Whether you're experiencing incontinence

You can keep a bladder diary before your appointment, or your doctor may ask you to start one to track your progress through treatment.

Export the data easily in a csv format that you can import to any spreadsheet, print it and take it to your doctor. You can also forward the data to your health care provider or anyone as an email.

The term OAB refers to "Over active bladder".

When you have Overactive Bladder (OAB), you may experience:

* Urgency: a pressing need to urinate. It can happen even when you don't really need to go. The urge can be so sudden and so strong that you have to run to the bathroom.
* Urge incontinence: when you can't reach the bathroom in time and you leak or have an accident.
* Frequency: having to urinate more than about 8 times a day.
* Nocturia: an urge to urinate that wakes you up at night

Seduction Flash Cards iPhone App

Ross Jeffries Speed Seduction(TM) Home Study Course flash cards is now available on your iPhone / iPod touch. Just swipe the flashcard to browse through 50 flash cards that consists of following themes:

1. Trance Words
2. Seduction Rules
3. Polarity Responders
4. Weasel Phrases
5. Super Influence Patterns
6. Super Weasel Phrases

Speed Seduction trademark belongs to Straight Forward Inc.

Collectible Cook Books Price Guide iPhone App

Price for over 3800 collectible cook books is now available on your finger tips. You do not need Internet connection to use this product. Due to changing nature of the market, this is not a guarantee of prices. Choose multiple research tools to verify data.

Collectible Books Price Guide iPhone App

Price for over 3000 collectible books are now available on your finger tips. You do not need Internet connection to use this product.

Due to the changing nature of the market, this is not a guarantee of prices. Choose multiple research tools to verify data.

I developed this product for my own use. Due to difficulty in getting the pricing information fast without waiting for websites to load.

Movies For Any Mood iPhone App

Top 20 movies for the genres : Action, Adventure, Animation, Biography, Comedy, Crime, Documentary, Drama, Family, Fantasy, Film-Noir, History, Horror, Independent, Music, Musical, Mystery, Romance, Sci-Fi, Short, Sport, TV Mini Series and Westerns of all time. Keep track of which movies you have watched. Search the entire database to see if it is in the top list.

Top 500 Movies iPhone App

The top 500 movies of the past 100 years is now available on your iPhone / iPod touch. You can keep track of which ones you have watched and which ones are still to be enjoyed. You can also search the entire database to find out whether it is in the top 500 list or not.

British Accent iPhone App

Boost your British accent to boost your career!

* Is your accent holding you back at work?
* Are you often asked to repeat yourself when you speak english?
* Do your friends and colleagues speak with a better British accent than you?
* Could improving your British accent improve your job prospects and get you that promotion?

then this product could help you!

If you are frustrated with your British accent and would like to speak with a clear RP voice then this video can help.

This product teaches you how to make the different sounds found in the RP British Accent.

* 15 different Vowel Sounds
* 16 different Consonant Sounds

By learning how to pronounce each of these individual sounds correctly you will be able to improve your spoken English immediately.

IMPRESS YOUR FRIENDS AND COLLEAGUES WITH YOUR REFINED BRITISH ACCENT

* Is your poor British accent affecting your job prospects?
* Could improving your British accent help improve your job opportunities?

For an investment of only $4.99 this product can help boost your British Accent to boost your promotion prospects.

iPhone App for Kidney Stones and Gallbladder Stones

iOxalate

This application is for those who have suffered from Kidney stones or Gallbladder stones due to Calcium Oxalate stones.

Foods are categorized according to the oxalate content. Foods low in oxalate can be consumed in unlimited amounts. However, common sense needs to prevail. For example, distilled alcohol, though low in oxalate, should not be consumed in unlimited quantities.

This application helps you to follow a low oxalate diet by eliminating foods very high in oxalate and eating those with moderate oxalate content in limited amounts.

This application does not have any recipes. It only contains the names of the foods categorized by oxalate content. You can also search the entire database of foods to find its oxalate content.

* Use it in a grocery store while shopping
* To lookup the food when you are in a restaurant
* When cooking to reduce the foods high in oxalate content

British Accent iPhone App now Live!

Learn British Accent on your iPhone / iPod touch: http://itunes.apple.com/us/app/british-accent/id350212768?mt=8