Srikanth Jeeva's technical Blog

Hi pals, If all the mails that you send are in HTML format. its simple. Specify this line in environment.rb ActionMailer::Base.default_content_type = "text/html" If only one action has to be in HTML mail, specify 'content_type' in that action. content_type "text/html" example, def signup_notification(recipient) recipients recipient.email_address_with_name subject "New account information" from "system@example.com" content_type "text/html" end cheers, Sri

Hi, used this to send the ID in params & display name in the select box. select_tag "user", options_from_collection_for_select(User.all, :id, :name) For adding option & showing selected params, select_tag "user_id", "<option>select one</option>" + options_from_collection_for_select(User.all, :id, :name, params[:user_id].to_i) -- sri.

Hi, I was wondering how to sort a table. I got this plugin & did it in 10 mins. Here is an useful plugin in jquery, Reference URL : http://tablesorter.com/docs/#Download Table sorting is pretty much easier using this tablesorter plugin. Thanks, Srikanth

Source : http://www.cyberciti.biz/faq/mysql-change-root-password/ mysqladmin command to change root password If you have never set a root password for MySQL, the server does not require a password at all for connecting as root. To setup root password for first time, use mysqladmin command at shell prompt as follows: $ mysqladmin -u root password NEWPASSWORD However, if you want to change (or update) a root password, then you need to use following command $ mysqladmin -u root -p'oldpassword' password newpass For example, If old password is abc, and set new password to 123456, enter: $ mysqladmin -u root -p'abc' password '123456' Change MySQL password for other user To change a normal user password you need to type (let us assume you would like to change password for vivek): $ mysqladmin -u vivek -p oldpassword password newpass Changing MySQL root user password using MySQL sql command This is another method. MySQL stores username and passwords in user t...

Reference : http://charlesmaxwood.com/ruby-on-rails-restful-links-when-you-dont-know-the-class/ Example : restful routes: map.resources :users map.resources :groups Model Relation: class Post < ActiveRecord::Base belongs_to :owner , :polymorphic => true end class User < ActiveRecord::Base has_many :posts , :as => :owner end class Group has_many :posts , :as => :owner end Now, let’s say that when you show a post, you want to provide a link to the owner of the post when you display it on its show page. You know that because you’ve provided the restful routes in your config/routes.rb file as show above, you get the nice functionality of the user_path and the group_path methods. The problem is that because you don’t know if @post.owner is a user or a group. Documentation : http://railsbrain.com/api/rails-2.3.2/doc/index.html?a=M000261&name=polymorphic_path Thanks, Srikanth

>>> print "Before %s After" % 7 Before 7 After >>> print "Before %x After" % 15 Before f After >>> print "Foo %04d Bar" % 3*3 Foo 0009 Bar

http://docs.jquery.com/Downloading_jQuery#Current_Release current version of jquery can be downloaded here.

require 'rubygems' require 'active_merchant' # Use the TrustCommerce test servers ActiveMerchant::Billing::Base.mode = :test # ActiveMerchant accepts all amounts as Integer values in cents # $10.00 amount = 1000 # The card verification value is also known as CVV2, CVC2, or CID credit_card = ActiveMerchant::Billing::CreditCard.new( :first_name => 'Bob', :last_name => 'Bobsen', :number => '349298720353895', :month => '8', :year => '2012', :verification_value => '1234' ) puts credit_card.valid?

hi, Amazon is Doing a great job in rails Payments. here is the ruby code for generation of button. require 'base64' require 'openssl' module PayNowWidgetUtils def generate_signed_form(access_key, aws_secret_key, form_params) form_params['accessKey'] = access_key str_to_sign = "" form_params.keys.sort.each { |k| str_to_sign += "#{k}#{form_params[k]}" } digest = OpenSSL::Digest::Digest.new('sha1') hmac = OpenSSL::HMAC.digest(digest, aws_secret_key, str_to_sign) form_params['signature'] = Base64.encode64(hmac).chomp signed_form = STARTFORM form_params.each do |key, value| next unless key and value signed_form += FORMELEM end signed_form += ENDFORM...