nileshtrivedi’s gists

nileshtrivedi / jdbcmysql_adapter.rb

Created June 29, 2011 20:16

Make enum-column plugin for Rails work with JDBC MySQL adapter as well

	module ActiveRecord
	module ConnectionAdapters
	class MysqlAdapter
	alias __native_database_types_enum native_database_types

	def native_database_types #:nodoc
	types = __native_database_types_enum
	types[:enum] = { :name => "enum" }
	types
	end

nileshtrivedi / mmacmd.rb

Created February 12, 2011 21:03

Quick Ruby script to play a simple accompanying track on command-line using MMA

	#!/usr/bin/env ruby
	#Example usage: mmacmd.rb basicrock 120 4 Bm Bm A A G Em Bm Bm
	#MMA Website is here: http://www.mellowood.ca/mma/index.html

	groove = ARGV.slice!(0)
	tempo = ARGV.slice!(0)
	count = ARGV.slice!(0)

	puts "Generating MMA file"
	File.open("/tmp/mmaout.mma","w") { \|f\|

nileshtrivedi / syllogism.rb

Created December 1, 2010 20:47

syllogisms in ruby (incomplete)

	class Syllogism
	attr_accessor :first, :second, :relation, :matrix
	def initialize(first_term,relation,second_term)
	@first = first_term
	@second = second_term
	@relation = relation
	@matrix = { @first => :unknown, @second => :unknown, :both => :unknown, :neither => :unknown }
	@matrix = { @first => :absent, @second => :unknown, :both => :unknown, :neither => :unknown } if @relation == :all_are
	@matrix = { @first => :unknown, @second => :unknown, :both => :present, :neither => :unknown } if @relation == :some_are
	@matrix = { @first => :present, @second => :unknown, :both => :unknown, :neither => :unknown } if @relation == :some_are_not

nileshtrivedi / scrape-indiantrains.org.rb

Created December 1, 2010 19:04

Scraping trains and stations list from indiantrains.org

	require 'net/http'
	require 'uri'

	# Fetch list of all stations with their codes
	File.open("all_stations.csv","w") { \|f\|
	(?A..?Z).to_a.collect(&:chr).each { \|c\|
	puts "Starting #{c}"
	sleep(3) #wait for 3 seconds
	uri = URI.parse("http://www.indiantrains.org/station-list/?navigate=" << c)
	response = Net::HTTP.get_response(uri)

nileshtrivedi / Scraping fun with Google, Flipkart and Ruby.rb

Created December 1, 2010 18:43

Scraping fun with Google, Flipkart and Ruby

	require 'net/http'
	require 'uri'
	require 'csv'

	google_url = "http://www.google.com/search?q=%22public+wishlist%22+site:flipkart.com&hl=en&site=webhp&prmd=iv&ei=ZYL2TOr3KYLyrQfv4dzWBg&start=NNNN&sa=N&fp=1b624545158a7512&tch=1&ech=1&psi=MX_2TOSlL82BrQegxqDYBg129122283549813"

	File.open("flipkart-public-wishlists.txt","w") { \|f\|
	(0..54).to_a.each { \|page\|
	puts "scraping page #{page} from google web search"
	start = page * 10

nileshtrivedi / patch for enum fields in scaffolding_extensions.rb

Created July 24, 2009 09:32

Patch scaffolding_extensions gem for supporting enum fields

	# The patch
	# In the scaffold_field_tags method in helper.rb

	when :enum
	# array of select options will be passed in the options hash for this column
	select_options = options[:select_options] \|\| []
	# each item in select_options is like [ option_label, option_value ]
	s = {value.to_s => "selected='selected'"}
	options.delete :select_options #we don't want to show this as an attribute in the generated HTML
	"<select #{scaffold_options_to_html(options)}><option></option>#{select_options.collect{\|o\| "<option value='#{o[1]}' #{s[o[1]]}>#{o[0].to_s}</option>"}.join}</select>"

nileshtrivedi / ubiquity command for searching travel videos from geobeats.com.js

Created February 26, 2009 19:42

ubiquity-command-for-geobeats.com.js

	jQuery.ajax({
	type: "GET",
	url: "http://www.geobeats.com/js/selectDropDown.js",
	data: "cachePreventor=1918606547",
	async: false,
	dataType: "text",
	success: function(data){
	var i = "new_cities_array = []; _gbstr = ''; \n";
	var f1 = "function addListGroup(a,b){}\n";
	var f2 = "function addList(a,b,c,d){ if(a == 'country-place' && b != 'Destination') {var splits = b.split(' - '); new_cities_array.push(splits[1] + ' - ' + splits[0]); _gbstr += (\"<br/>\" + b);} }\n";

Nilesh nileshtrivedi