Shabuz LAMP

Here is the Instruction that you have to follow to install ruby on rails. Instead of yum, use apt-get if you are using ubuntu.

Step 1: install ruby yum install ruby

Step 2: Install rubygems yum install rubygems

note: It will ask for installing dependencies, Press Y each time

Step 3: Now install rails gem install rails

You are done.
Now try to run a simple application using ruby on rails.

Create a folder in any directory (suppose its “myproject”) and our project name is simpleapp so from command prompt go to that folder (myproject).

now type

rails simpleapp -d mysql

i.e: -d mysql is for using mysql database. if u r using sqlite3 then just omit these text.

Anyway, after running this rails it will automatically create all the necessary files with a configuration file for mysql. Go to myproject/simpleapp/config/ directory. You will find database.yml file. Open the file you’ll the configuration for 3 database for 3 different mood. By default it always use development mood. So edit the configuration of development mood.

You will see that, it has configured the database name as simpleapp_development.

Edit this name or create new database in the mysql with this name or the edited db name.

Now we will try to build an AMD(add-modify-delete) tool using ruby on rails. For this initially we will use scaffold feature of ruby on rails.

In the command prompt go to your application directory and type

script/generate scaffold post title:string body:text

Once scaffolding is successful then migrate database. To migrate database type

rake db:migrate

Now just run the server and view your application. In order to run the server type

script/server

After running the server you will see that its listening to the port localhost:3000 or 127.0.0.1:3000 . That means you can view your application in that port of your web browser.

Open firefox and type localhost:3000/posts (posts is the controller name) to see your application.

yup. that’s all done. Isn’t it too simple ?