Palindrome Rails App

gistfile1.txt

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        Palindrome.rb
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# In ActiveRecord docs as 'validates_with'
class ValidPalindrome < ActiveModel::Validator

  def validate(record)
    test_string = record.text
    unless test_string == test_string.reverse
      record.errors[:text] << 'This is not a Palindrome.'
    end
  end
end

class Palindrome < ActiveRecord::Base
  before_save :isPalindrome?

  validates :text, presence: true, uniqueness: true
  validates_length_of :text, minimum: 2

    # include ActiveModel::Validations
  validates_with ValidPalindrome

  def isPalindrome?
    test_string = self.text
    test_string = test_string.gsub(" ", "").downcase
    return test_string == test_string.reverse
  end

end

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        routes.rb
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 root 'palindromes#index'
  resources :palindromes

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        index.html.erb
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<h1>Palindromes</h1>

<% if flash[:notice]%>
  <div><%= flash[:notice] %> </div>
<% end %>

<%= form_for(@palindrome) do |f| %>
  <%= f.label :text %>
  <%= f.text_field :text %>
  <%= f.label :letters %>
  <%= f.text_field :letters %>
  <%= f.submit %>
<% end  %>

<table>
  <tbody>
  <% @palindromes.each do |p| %>
    <tr>
    <td><%= p.text %></td>
    <td><%= p.letters %></td>
    </tr>
    <% end %>
  </tbody>

</table>
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        palindrome_controller.rb
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class PalindromesController < ApplicationController
  def index
    @palindromes = Palindrome.all
    @palindrome = Palindrome.new
  end

  # def new
  # end

  def create
    @palindrome = Palindrome.new(palindrome_params)

    if @palindrome.save
      redirect_to root_path
    else
      # flash[:notice] ="Your Palindrome didn't save."
      redirect_to root_path, notice: @palindrome.errors.messages[:text].first
    end

  end

  private

  def palindrome_params
    params.require(:palindrome).permit(
      :text,
      :letters
      )
  end
end
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