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Add Google Custom Search to your Rails Application (Business Edition)

Here are the steps to set up a Google CSE for your rails application. In order to use the xml api, first of all you need to have a business account. You can get the xml query format url or more precisely the cx parameter (unique ID of the CSE) ...

Batch Mailing in Rails

Recently I worked on a Mass Mailing system for a Rails application using ar_mailer. This tutorial is just an effort to consolidate tips needed to get the mailing system ready and save time on some commonly known problems. I wanted to implement this for a newsletter application, where a mail needs ...

Remote file storage using File Column plugin

Many times I came across a need to fetch remote data (video files/images) and store them on file system. Searching for a way, I came up with this approach. The example is about a Video class with a video_file 'file_column'. To fetch and store a remote file instead of getting it ...

JS based easy Field Validations in Rails

Most of you will disagree with this post to use Javascript based form validations in Rails. However this is an attempt to simplify integration of DEXAGOGO - Really easy field validations in Rails. This is one of the most structured and easy validation technique written by Andrew Tetlaw and team. ...

File Upload: Validating Extensions

I was searching for a way to validate a file against an allowed set of extensions before uploading. My application uses file_column plugin to store video files and I am using mongrel_upload_progress to track the upload. The maximum file size allowed is 50Mb so there was a need to have ...

Ajax Tree Plugin

Introduction This is a helper plugin to generate ajax based tree structure (two level). It can be used for two models having n:m or 1:n relationships. A leaf from any branch can be dragged and dropped in another branch. A scaffolding arrangement is also done to create a new branch, ...

Flash Movie embed code (RubyOnRails)

Last week I was working on a code to make my video files embedding (flv) available for external webpages. There are many ways to implement this and I have documented a simple way to achieve it. I am using a Video model with file_column plugin to store the flv file. The ...

FlickrGallery - Papervision3D

FlickrGallery 0.1 is ready to go :) It pulls out the latest 12 images from your Flickr album. You just need to pass nsid of the flickr account. To get Flickr nsid, see the rss feed url of your photos. For example: http://api.flickr.com/services/feeds/photos_public.gne?id=75426038@N00&lang=en-us&format=rss_200 Here 75426038@N00 is the ...

SecuritySandbox Errors and PaperVision3D

I have been banging my head since past one week to resolve the Security Sandbox error issue with ActionScript 3.0 and Papervision 3D. This security thingy was needed badly to get my FlickrGallery working. Error Description: SecurityError: Error #2122: Security sandbox violation: LoaderInfo.content: ...

yaml_form_builder

This plugin provides a simple way to generate dynamic forms in view. The forms are configured with the help of a yaml configuration file. 1) Installation script/plugin install http://yaml-formbuilder.googlecode.com/svn/trunk/yaml_form_builder/ 2) Configuration The example below demonstrates a form generated for the following schema. [source: Ruby] create_table "permissions", :force => true do |t| ...