Form auto fill using javascript and jquery. Passing and receiving parameters with windows.location

Scenario:

A Signup field with a signup button on index pages. if a user enter their email address and click on signup button it should be redirected to the devise signup path (new). And the email entered on the previous page should be filled in the signup registration form. first you need to override the devise registration form. which is partial.
I resolved the issue by using Javascript and jquery. below are the files I have made changes in.
_________________________________________________

index.html.erb
 
<%= render 'index_signup_label'%>

_________________________________________________

_index_signup_label.html.erb

<div class="signup-label" >
  <div style="margin-bottom: 5px"> <h2>Sign up for free</h2></br>
    <form action="/signup" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" novalidate>
    <input type="email" placeholder="Your best Email" value="" name="EMAIL" class="required email" id="mce-EMAIL">

    <%= button_tag "Free Signup", :id => 'signup-btn', :type => 'button',:class => "button primary" %>
   
</div></br>
    </form>
</div>

<script type="text/javascript">
$('#signup-btn').click(function(){
    var email = $("#mce-EMAIL").val();
    location.href = '<%= signup_path() %>?email='+email;
});

</script>
_____________________________________________

_user_form.html.erb

<p>
  <%= f.label :email, Spree.t(:email) %><br />
  <%= f.email_field :email, :class => 'title uemail', :onChange => 'changeallemail(this.value)', :onfocus => 'resetEl()' %>
</p>


<script type="text/javascript">
function get_param(name){
   if(name=(new RegExp('[?&]'+encodeURIComponent(name)+'=([^&]*)')).exec(location.search))
      return decodeURIComponent(name[1]);
}

$(document).ready(function() {
    var email = get_param('email');
    $('.uemail').val(email);
});
</script>

PHP my admin acccess denied password reset.

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

$ sudo service mysql start

$ mysql mysql -u root

$ UPDATE user SET password=PASSWORD('newpassword') WHERE user="root";

Restricting a page view to a specific action

Like you have a Nav bar on all pages and you want it to be different on Index Pages.

<div id="subheader" class="<%= 'slider-bg' if (controller_name.eql?('home') && action_name.eql?('index') )%>" >

Can't install RMagick 2.13.2. Can't find Magick-conf

http://stackoverflow.com/questions/13963404/rails-and-os-x-how-to-install-rmagick

Start working with an existing project

1. Replace keys in shh Directory
2. Set username and email
3. Make a branch
4. Clone
5. Create a gemset
6. Bundle install
7. Run migration

RVM Commands

$ rvm current
$ rvm install x.y.z (version)
$ rvm use x.y.z
$ rvm use x.y.z@redmine_plugins

Spree Guide

A useful study material for spree e-commerce solution.

• ryanbigg.com/spree-guides/getting_started.html‎

mysql gem installation

$ sudo apt-get install libmysql-ruby libmysqlclient-dev

LAMP for apache and mysql

here is a useful link for installing LAMP on linux based OS.

• http://www.howtoforge.com/ubuntu_lamp_for_newbies

.ssh key generation command

$ ssh-keygen -t rsa -C "your_email@example.com"

Customizing Refinery Page and Menu Titles

if you want to have a separate/different navigation menu title from your page title:
go to pages , edit pages, advanced options give your menu title there.... for SEO purposes browser title, meta keywords and meta description can also b given there.
Reference URL:
http://refinerycms.com/guides/page-titles-and-urls

Refinery adding additional page parts

for all pages if you want to add additional page parts go to config/initializers/refinery/pages.rb
uncomment  # config.default_parts = ["Body", "Side Body"] and add additional page part such as
 config.default_parts = ["Body", "Side Body", "Middle body"]


Changing Page Parts for a single Page

go on to the same part config/initializers/refinery/pages.rb
uncomment and change the following value to true
# config.new_page_parts = false
restart server
now go to your pages tab refinery and edit your home page You’ll notice a plus and minus button at the top right of the visual editor. Click on the plus icon and add a new page part titled “Middle Body” and click save. If you have modified your home.html.erb file, you can use the following snippet to output the new part’s content in your page:
<%= raw @page.content_for(:middle_body) %>

reference URL:
http://refinerycms.com/guides/changing-page-parts

Creating Test DB

$ rake db:test:clone

10 Ruby on Rails Best Practices

Best Practices :

http://www.sitepoint.com/10-ruby-on-rails-best-practices/

Cancan Ability

In your gemfile Include.

1. gem "cancan" 

2. install bundle. 

3. rails g cancan:ability

this will generate an ability class in your models. 

define your Abilities there like below.

but keep remember that you have already defined roles, 

such as you have a User model,

having two roles defined i.e admin and support.

class Ability

include CanCan::Ability

def initialize(user)

user||= User.new

can :read, :all

if user.role == 'admin'

can :manage, :all

else

can :read, :all

end

end

end

4. the resource on which you want to restrict a user,
 use the following filter in their controller.

                  load_and_authorize_resource

5. if you want restrict something in the views not to show.

<% if can? :manage, @flower %>

<td><%= link_to 'Edit', edit_flower_path(flower) %></td>

<% end %>

<% if can? :manage, @flower %>

<td><%= link_to 'Destroy', flower_path(flower),

method: :delete, data: { confirm: 'Are you sure?' } %></td>

<% end %>

 

 

Heroku Push and Assets precompile

1. git push heroku master
2. heroku run rake assets:precompile

Using Bootstrap with Rails 3.2

 Useful Resource :

http://railsapps.github.io/twitter-bootstrap-rails.html