itiansRock

If was trying to migrate one of the app from ruby to jrby to try out the threading benifits. this wasn't an easy task :D well the gem dependency did not create a big issue. the problem came when connecting to mysql with jdbc driver I had replaced  gem 'mysql2' with   gem 'activerecord-jdbcmysql-adapter' in Gemfile But it refused to load the driver saying : "The driver encountered an unknown error: cannot load Java class com.mysql.jdbc.Driver' I searched but Google could not answer me :( then I started looking into activerecord-jdbsmysl-adapter gem and came upon the the file  activerecord-jdbc-adapter / activerecord-jdbcmysql-adapter / lib / active_record / connection_adapters /jdbcmysql_adapter.rb  I just copy pasted the code in a application.rb config with a condition if jruby used just after the bundler code if defined?(JRUBY_VERSION)   require 'jdbc/mysql'   Jdbc::MySQL.load_d...

To have multiple forgot password templates and send it through mailer in rails it is quite easy Just Cheers...!!

rvm (ruby version manager) needs a small change in konsole setting to make rvm use work right click on the terminal and select 'edit current profile' change the command from /bin/bash to /bin/bash --login Apply and boom you are ready to use rvm in terminal.

Recently I have been encouraging desktop users to use ubuntu and enjoy a virus free also virus fear free desktop experience. Without internet connection enabling restricted codes or any other install has been always a feary tasks for managing dependencies. Links to almost all Multimedia codec and vlc player offline install. http://ubuntuforums.org/archive/index.php/t-1477045.html Thanks to sundar_ima for creating and uploading all the archives for offline install.

I upgraded my ubuntu 12:04 to 12:10  couple of days And to my surprise the pidgin integration in notification menu had disappeared. I couldn't figure out why this people f**ked up such an important integration. After some research and logic I was able to do some juggad and get my original gnome 2 notification style menu in notification bar . Here are the steps I followed I did not want Empathy or gwibber so I removed then Now follow these steps carefully. Open dconf-editor Add 'pidgin.desktop' to applications  in  com > canonical > indicator > messages   Change value to 'all' in  system-whitelist  in  com > canonical > unity > panel   Now Logoff and Login again and you will be able to see the Pidgin in messages notification menu. Also it now shows the gnome classic style chat notification in notification tray.. Pidgin showing in notification tray. ...

Celebrating independence day is not merely remembering the brave one who fought for it.. it a day to keep remembering the pledge to make it better. A Warm Salute for all the one who contributed to the freedom and also salute to all the people with all their deeds (great or even small) feel to make it better.....!!  Happy Independence Day...!!!

I was trying to ProxyPass the app to another server But ran into a strange problem. ProxyPass worked when I called http://10.0.11.95 but failed when any uri was added to root(10.0.11.95) Like http://10.0.11.95/login gave Proxy Error The proxy server received an invalid response from an upstream server. The proxy server could not handle the request GET /login. Reason: DNS lookup failure for: 127.0.0.1:9051login Where we find the problem is: Code for ProxyPass: ProxyPass               / http://10.0.11.95 ProxyPassReverse        / http://10.0.11.95 Solution, I needed another slash at the final, so, it should be: Code: ProxyPass               / http://10.0.11.95/ ProxyPassReverse        / http://10.0.11.95/ Now it works \m/ .

 Creating files with date like rails migrations with datetime in file name in linux

Today I was stumped by a very simple yet awesome problem by my friend Sandip What is the answer of   :  7 % -2  and to the surprise ruby irb printed it as :  -1  After some research I what I found about this and why here is explanation and links From Ruby Programming Language, O,really   Division, Modulo, and Negative Numbers When one (but not both) of the operands is negative, Ruby performs the integer division and modulo operations differently than languages like C, C++, and Java do (but the same as the languages Python and Tcl). Consider the quotient -7/3. The floating-point result is –2.33. The result of integer division must be an integer, however, so this number must be rounded. Ruby rounds toward negative infinity and returns –3. C and related languages round toward zero instead and return –2. (This is just one way to characterize the results; no floating-point division is actually done, of course.) An important corollary of...

I have been using ruby from a while and like every other I find  rvm as a awesome tool to manage various ruby version in one system. Optional: You many need to install all libs not all but many of these will be need but its better to get installed in the system This is a very small explanation for rvm but I feel this is very enough to get kick started and enjoy coding ..... More help:  http://cheat.errtheblog.com/s/rvm/ https://rvm.io/rvm/   http://net.tutsplus.com/tutorials/why-you-should-use-rvm/

In Ubuntu 11.04 I had to install ttf-dejavu-extra fonts for rendering italic fonts properly $ sudo apt-get install ttf-dejavu-extra This helped me find the solution -  http://support.mozilla.org/en-US/questions/886261 After installing it is now rendering italic characters properly :)

Send emails with Amazon SES in Rails 3 I have been using aws-ses gem quite successfully in Production env. In your Gemfile add: create an initializer in config/initializers Configure ActionMailer   Set delivery mehtod to amazon ses in environment.rb or in a specific environment as needed eg. config/environments/production.rb  

http://net.tutsplus.com/tutorials/other/8-regular-expressions-you-should-know/ Here is a wonderful post to understand how regex can be used for most basic matches and valiadations in general. This can help better understanding for making more complex use In computing, regular expressions provide a concise and flexible means for identifying strings of text of interest, such as particular characters, words, or patterns of characters.

In config/initializers/session_store.rb:

db:migrate   runs (single) migrations that have not run yet. db:create   creates the database db:drop   deletes the database db:schema:load   creates tables and columns within the (existing) database following schema.rb db:setup   does db:create, db:schema:load, db:seed db:reset   does db:drop, db:setup   Normally, db:migrate used after having made changes to the schema via new migration files after creating db i.e when db already exists. db:schema:load is used when you setup a new instance of your app.

<  The humble Linux cheat sheet  > A small Linux cheat sheet, introducing the very basic and very essential commands for surviving at the Linux CLI. Moving around in the file system Command Action pwd "Print working directory" - show what dir you're in. ls List the contents of a dir. ls -l List the contents of a dir and show additional info of the files. ls -a List all files, including hidden files. cd Change directory. cd .. Go to the parent directory. Examining files Command Action file Determine the type of a file. cat Concatenate a file. less View text files and paginate them if needed. Manipulating files and directories Command Action cp Copy a file. cp -i Copy a file and ask before overwriting. cp -r Copy a directory with its contents. mv Move or rename a file. mv -i Move or rename a file and ask before overwriting. rm Remove a file. rm -r Remove a directory with its contents. rm -i Ask before removing a file. Good to use with th...

URI.extract makes it easy to find links in pages. "Extracts URIs from a string. If block given, iterates through all matched URIs. Returns nil if block given or array with matches."

This is just a small list of tech website I personally found worth following. Ars Technica  – This site caters to computer enthusiasts and covers a wide array of technology, science and gaming news. It is one of the sites most-linked-to by tech blogs and news sites. Cnet.com  – This site is the one which we consider to be Engadget’s counterpart in the business-oriented world of tech reporting. It’s stable of reliable news and rumor sources still deliver breaking news and exclusives reported in a professional, business-like style of writing. Computer World  – The site is one of the tech industry’s oldest and leading source of technology news and information for IT influencers. It is still one of the leading source for breaking news, industry analysis and opinions. Droid Life  – Another Android-centric tech news site. The site covers anything and everything about the Android platform including lineups of DROID phones, apps, reviews and videos. Electronis...