link_to image tag. how to add class to a tag?

I am using link_to img tag like following <%= link_to image_tag("Search.png", :border=>0, :class => 'dock-...

Can somebody show me graphical representation of rails classes hierarchy??

I'm a beginner and am confused by the structure of ruby on rails. Everywhere I've found it described in a way that i...

Floating Column(Max/Min) Graph in ROR?

I need to create a graph as shown in the image below. I have the values for the upper limit, lower limit and the ave...

How to rollback a specific migration??

I have the following migration file db\migrate\20100905201547_create_blocks.rb How can I specifically rollback that...

TinyTDS: Server name not found in configuration files?

I keep seeing this error, and I am unable to connect to the database on the remote server. I am given a connection ...

Change rails version used by rvm?

Here are my local gems : $ gem list *** LOCAL GEMS *** actionmailer (4.0.0, 3.2.14) actionpack (4.0.0, 3.2.14) ac...

Rails 4: List of available datatypes?

Where can I find a list of data types that can be used in Ruby on Rails 4? Such as text string integer float ...

Updating several records at once in rails?

In a rails 2 app I'm building, I have a need to update a collection of records with specific attributes. I have a na...

'sudo gem install' or 'gem install' and gem locations?

Running 'sudo gem list --local' and 'gem list --local' give me differing results. My gem path is set to my home fold...

Rails return JSON instead of HTML?

I have a ruby on rails web app, but I want it to act like a web service and instead of HTML to return JSONs. I want ...

Rails 3. How to get the difference between two arrays??

Let’s say I have this array with shipments ids. s = Shipment.find(:all, :select => "id") [#<Shipment id: 1...

Write to rails console?

When I want to try or debug smthing I run rails console and do some stuff there. I can print some text or variables ...