Useful rails methods

Links

<% link_to 'Name', name_path(:param=> 'variable'), :class => 'css' %>

Redirection

In Controller -> redirect_to name_path
In Views ->
<% if developer_signed_in? %>
    <script type="text/javascript">
        window.location.href="/dashboard"  // put your correct path in a string here
    </script>
<%else%>

Killing process in Linux

ps aux | grep (process name)
kill processID

Make Devise Authenticable to controller classes

class YourController < ApplicationController
  before_action :set_unlock_code, only: [:show, :edit, :update, :destroy]

  #Only signed in user can do the following (Devise)
  before_filter :authenticate_developer!
end

Parsing Form tag with parameters

Unlike form_for tag, this tag pass the values with params

In the View
    <%= form_tag generate_codes_path, :class => 'form-inline' do %>
        <div class="form-group">        <%= number_field_tag 'unlock_code[strAppId]', nil, :placeholder => 'App ID' %>              </div>
        <div class="form-group">        <%= number_field_tag 'unlock_code[batchNo]', nil, :placeholder => 'Batch No' %>             </div>
        <div class="form-group">        <%= text_field_tag 'unlock_code[strStatus]', nil, :placeholder => 'Status' %>               </div>
        <div class="form-group">        <%= number_field_tag 'unlock_code[priceUniversal]', nil, :placeholder => 'Price in USD' %>  </div>
        <div class="form-group">        <%= number_field_tag 'unlock_code[priceMMK]', nil, :placeholder => 'Price in MMK' %>        </div>
        <div class="form-group">        <%= number_field_tag 'unlock_code[num]', nil, :placeholder => 'Number of codes' %>          </div>

        <%=  submit_tag 'Generate', :class => "btn btn-primary md-trigger" %>
    <% end %>

In the controller tag
    strAppId = params[:strAppId]
    batchNo = params[:batchNo]
    strStatus = params[:strStatus]
    priceUniversal = params[:priceUniversal]
    priceMMK = params[:priceMMK]
    num = params[:num]

Field Parameters

<%= number_field_tag 'appID', '-1', :placeholder => 'App ID', :required => true , :disabled => true%>