geoip_city

tested on cygwin. runs smoothly..

original article :http://blog.hungrymachine.com/2007/10/31/super-fast-ip-to-lat-lng-in-rails-part-2

wget http://www.maxmind.com/download/geoip/api/c/GeoIP.tar.gz tar -zxvf GeoIP.tar.gz cd GeoIP ./configure && make && sudo make install  wget http://rubyforge.org/frs/download.php/27077/geoip_city-0.1.gem sudo gem install geoip_city-0.1.gem wget http://www.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz gunzip GeoLiteCity.dat.gz sudo mkdir /usr/local/share/GeoIP sudo mv GeoLiteCity.dat /usr/local/share/GeoIP/GeoLiteCity.dat

Then the ruby part:

>> require 'geoip_city' >> g = GeoIPCity::Database.new('/usr/local/share/GeoIP/GeoLiteCity.dat') >> res = g.look_up('4.2.2.2') >> puts "lat: #{res[:latitude]} lng: #{res[:longitude]}" lat: 38.0 lng: -97.0

cygwin, Rails2, OpenID 2

Hi, I've been googling about a week to solve a ruby-openid problem. And found a working example on Rama McIntosh's blog. http://myutil.com/2007/12/29/openid-2-0-2-with-rails-2-0-2

At first, I thought rails Ticket #10604 patch worked. But it was more complicated than that. Since Rails, ruby-openid, and open_id_authentication plugin versions were not consistent. And Rama McIntosh went through all. You can find Dr. Nick’s example application fully ported to rails 2.0.2.

Here is my development environment. 

------------------------------------------------------------

LG LW25 advanced laptop IntelCore2 T5600, Mem 2G

XP Pro version2002 SP2

Cygwin + CygPutty 

Ruby ruby 1.8.6 (2007-03-13 patchlevel 0) [i386-cygwin]

Rails 2.0.2

ruby-openid (2.0.3)

rake (0.8.1)

mongrel (1.1.3)

mongrel_cluster (1.0.5)

ruby-yadis (0.3.4)

app db : sqlite3

------------------------------------------------------------

Besides his README, some extra typing was needed to run the app.

1. svn co http://drnicwilliams.com/svn/openid/demos/apps/openidauth_multiopenid/trunk openidauth_multiopenid

 

2. Do not erase some svn directories because he made some rake tasks related with svn.

3. rake freeze TWICE!

4. mkdir log

5. require_gem => gem

openidauth_multiopenid/vendor/gems/ruby-openid-1.1.4/lib/openid/service.rb:7

openidauth_multiopenid/vendor/gems/ruby-openid-1.1.4/lib/openid/discovery.rb:8:

6 rake db:create

7. gem install mocha

8. rake test

9. config/environment.rb

  config.action_controller.session = { :session_key => "_openidauth_multiopenid_session", :secret => "mocramagic" }

  

  Replace to other {key, secret} like this,

  

    config.action_controller.session = {

    :session_key => '_foo_session',

    :secret      => '4747ba80asdfqwertwertwee5y4365345ertf gadrtvrwebterwvd653b65tyt93c45cb53242eb43'

  }

10. mongrel_rails start!!

IT WORKS!!!

How I deployed to my slice. 

1. Peepcode tutorials 

capistrano and git screencast helped me. 

2.Scott Chacon's tutorial screencast.

He really help me out. Any one who's struggling with capistrano & git, I higly recommand his tutorial. I was able to deploy my app via Cygwin.

IT'S PRODUCTION MODE!!

1. In environment.rb, uncomment 

RAILS_GEM_VERSION = '2.0.2' unless defined? RAILS_GEM_VERSION

2. deploy.rb

set :mongrel_servers, 3

set :mongrel_port, xxxx

set :rails_env, 'production'

3. /u/apps/appname/current/config/mongrel_cluster.rb

---

user: deploy

group: deploy

log_file: log/mongrel.log

cwd: /u/apps/appname/current

port: xxxx

environment: production

pid_file: tmp/pids/mongrel.pid

address: 127.0.0.1

servers: 3

4. cap deploy:migrate RAILS_ENV=production

grep mongrel pid

 ps -ef | grep mongrel

kill -9 xxx

OR

ps aux | grep [m]ongrel

ps aux | grep [m]ongrel | awk '{ print $2 }' | xargs kill -9

ActiveRecord::StatementInvalid (Could not find table '

ActiveRecord::Base.allow_concurrency = true

http://blog.defv.be/2006/9/21/activerecord-ruby-and-threads

http://blog.ardes.com/archives/2006/12

It's just amazing that the bug is still there...

cygwin ssh.

If you're using capistrano or webistrano and developing on cygwin environment, you better set server's ssh port to 22. Capistrano does not change it's port number when cap deploy:cold. I googled this problem for 3 days. And this is what I got so far.

edit .git/hooks/pre-commit and comment out the following lines:

if (/\s$/) {

bad_line("trailing whitespace", $_);

}

below article was written by stevie, at capistrano : google groups.

----------------------------------------------------------------

A better Cygwin package manager: 

1. run setup.exe again, but this time use the GUI and install only 

wget (if you're installing Cygwin on a bunch of machines, it would 

probably be easier to install wget on one machine and then copy over 

then necessary files for wget on the others so you're not having to 

fire up the GUI on each machine) 

2. get Stephen Jungels' apt-cyg and copy it into /bin:  wget 

http://stephenjungels.com/jungels.net/projects/apt-cyg/apt-cyg 

3. Now you can install any cygwin package with a "apt-cyg install 

".  *MUCH* easier than using that horrible GUI. 

----------------------------------------------------------------------------------

one cent tips

---------------------------------------------------------------------------------

1. Can't see the welcome page?

sudo chown -R www-data:www-data /var/www/rails/learnkorean.kr/current

2. If you cannot deploy production mode, try this

%> RAILS_ENV=production rake db:migrate

or

%> set RAILS_ENV=production

%> rake db:migrate

Gusty, Nginx, Rails and Mongrel_cluster howto

Here are the articles where I learned proper way to do this.

• Andrzej Krzywda
  
• railsjitsu
  
• Slice host tutorial by PickledOnion 
  

sudo cp /usr/lib/ruby/gems/1.8/gems/mongrel_cluster-1.0.5/resources/mongrel_cluster /etc/init.d/mongrel_cluster

Next, add a path statement to mongrel_cluster file just above the CONF_DIR variable:
sudo vi /etc/init.d/mongrel_cluster

PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local:/usr/local/sbin:/usr/local/bin
USER=mongrel to USER=www-data

sudo chmod +x /etc/init.d/mongrel_cluster
sudo update-rc.d mongrel_cluster defaults

In our rails app directory we need to create our mongrel config and then symlink it to where our mongrel config directory located at /etc/mongrel_cluster.

nano config/mongrel_cluster.yml

cwd: /var/www/rails/coredrill
log_file: log/mongrel.log
port: 8000
environment: production
group: www-data
user: mongrel
address: 127.0.0.1
pid_file: tmp/pids/mongrel.pid
servers: 3

ln -s /var/www/rails/coredrill/config/mongrel_cluster.yaml /etc/mongrel_cluster/coredrill.yaml

Starting nginx: 2008/01/15 23:17:19 [warn] 3238#0: conflicting server
name "coredrill.wowdns.com" on 37.208.125.80:80, ignored
==>
You have to add this to your default vhost:

server_name _ *;
listen 8080 default;

Finally, check your vhost config.
server

{ 

 listen 37.208.125.80:80; => listen 8080;
...

}

sudo ln -s /etc/nginx/sites-available/default /etc/nginx/sites-enabled/default

mongrel_rails start -d -e production -p 8000 -P log/mongrel8000.pid 
mongrel_rails start -d -e production -p 8001 -P log/mongrel8001.pid 
mongrel_rails cluster::start 
mongrel_cluster_ctl status

another logo

Core Drill

Well, I'm developing a site with my friend. My rails stack is on Xen(slicehost).

• Ubuntu 7.1.0 Gusty
• NGINX
• Mogrel_cluster
• Capistrano
• Rails2.0.2
  

one cent tip.

Fount this from google groups

http://groups.google.com/group/rubyonrails-talk/browse_thread/thread/e0fcc4720ee59ba8/5bd3f77e610925b3%235bd3f77e610925b3

 I installed mini magick correctly and 
thumbnails are still not generated.

You need to have a 'parent_id' column in your photos table.  This one 
had me scratching my head for a few hours too until I stumbled across 
this requirement of the plugin. 

attachment_fu on Windows

http://railsforum.com/viewtopic.php?id=6307

Code :   - fold - unfold

1.       def uploaded_data=(file_data)
2.         return nil if file_data.nil? || file_data.size == 0
3.         self.size = file_data.size
4.         self.content_type = file_data.content_type
5.         self.filename     = file_data.original_filename if respond_to?(:filename)
6.         if file_data.is_a?(StringIO)
7.           file_data.rewind
8.           self.temp_data = file_data.read
9.         else
10.           self.temp_path = file_data.path
11.         end
12.       end

and added conditionals for the size
      

Code :   - fold - unfold

1.       def set_size_from_temp_path
2.           self.size = File.size(temp_path) if save_attachment? && (self.size == 0 || self.size.nil?)
3.       end

Posted by Adam (Guest) 

on 10.04.2007 01:34

http://www.ruby-forum.com/topic/99870

To get things working with S3 and windows, I changed:        def temp_data         if save_attachment?           f = File.new( temp_path )           f.binmode           return f.read         else           return nil         end       end (before, the method body was save_attachment? ? File.read( temp_path ) :  nil  ) 

Rails2.0 and heroku the awesome rails app hosting

Check it out. It's free and looks cool. I was frustrated by googling free rails hosting all day. Of course there're many hosting sites with shining options. But for testing, it's too expensive. Anyway I found the heroku.com. With Rails2.0 and Amazon S3, this site will dominate all the other hosting sites. Why? because they'll support Gems & Plugins Manager which made me annoying.

There're also some screencasts.

So, for now you'd better freeze your gems by using Dr Nic's Gems on Rails.

To install the plugin:

> gem install gemsonrails > cd rails-app-folder > gemsonrails 

Usage:

rake gems:freeze   GEM=gem_to_freeze rake gems:link     GEM=gem_to_link rake gems:unfreeze GEM=gem_to_unfreeze_or_unlink

gem install gemsonrails cd app-folder gemsonrails rake gems:freeze GEM=ruby-net-ldap

(Though freezed gem does not work properly now)