Randika on Rails

How to deploy rails 3.1.1 app on heroku Cedar stack

Randika — Tue, 08 Nov 2011 22:06:50 +0000

Rails 3.1 runs best on Heroku’s Cedar stack, rather than bamboo stack. Following steps worked for me when deploying the apps to heroku’s cedar. Gem configuration ============================== 1) On your Gem file move the default sqlite3 gem config to development group and add PosgreSQL group :production do # gems specifically for Heroku go here gem [...]

Linux tips: Check whether the mongrel port 3000 is open

Randika — Fri, 03 Jun 2011 14:09:41 +0000

Linux tips: How To Search Shell Command History

Randika — Fri, 03 Jun 2011 13:46:25 +0000

How to Install Ruby 1.9.2 and Rails 3.0 on Ubuntu

Randika — Fri, 04 Feb 2011 20:06:40 +0000

Most of the developers still use package managers to install ruby. This approach works, but most of the times it leads to dependency issues every now and then. Usually I don’t use package managers to install ruby, instead I use ruby version manager (RVM) by wayneeseguin In this post I’m going to install ruby 1.9.2 [...]

How to unzip bz2 files

Randika — Fri, 18 Jun 2010 11:08:40 +0000

tar –use-compress-program bzip2 -xvf your-file-name.tar.bz2

Fedora: Accidentally deleted Gnome desktop panels, how to restore?

Randika — Tue, 15 Jun 2010 04:08:12 +0000

I accidentally deleted the entire panels at the bottom and the top of the my fedora Gnome installation. Start menu, the clock, desktop switchers, workspaces and everything are gone now. After googling for few minutes I found a fix for this. Here is what I did. [randika@localhost ~]$ mkdir bak [randika@localhost ~]$ mv -rf {.gnome*,.gconf*} [...]

Ruby on Rails: How to bypass Model validation

Randika — Fri, 09 Apr 2010 12:55:27 +0000

In my recent application I have these two models (User, BusinessAccount) with some data validation which works well with their respective controllers. While keeping these models with their data validation as it is, I wanted to create another Controller (SignupController) which save both model data at once. But I wanted to bypass the original model validation [...]

JavaScript: trim() Function

Randika — Tue, 09 Feb 2010 09:42:19 +0000

Where is the trim() function to remove leading and trailing whitespaces of strings? Actually Javascript String object doesn’t natively support it. But there is a workaround for this with regular expressions.

Ruby on rails: how to install ruby 1.8.7 on windows

Randika — Mon, 11 Jan 2010 16:47:23 +0000

I couldn’t find the very famous ruby one-click-installer for ruby 1.8.7, after trying various ways I ended up with a solution for this. Here is what I did to get ruby 1.8.7 installed on windows. First download the ruby 1.8.7 from this link: http://www.ruby-lang.org/en/downloads/ (I took Ruby 1.8.7-p72 Binary) extract this to c:\ruby (or somewhere [...]

Most wanted ruby on rails code snippets, tips and tricks

Randika — Mon, 30 Nov 2009 10:44:53 +0000

I keep forgetting all those fancy ruby on rails commands and the important code snippets always. I better keep them documented some where I can find easily. So I’m going to write down as much as code snippets, command lines, tips tricks where I need. Anyway this looks messy as I update this page time [...]