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<div>
          <h3>Movie review app </h3>
            <p>
               Lets build a Movie review app with features like authentication, authorization
               combining features of picture uploading and DB associations.

               We will wrap this tutorial by enhancing the look and feel of our app with a CSS framework.
            </p><br/><br/>
            <p>
                Start off creating a workspace from your Cloud9 dashboard.
            <dl>
                <dt>Step 1: Create a model for Movies </dt>
                <dd>
                    <pre>
rails generate model Movie name:string description:text releasedate:date
                    </pre> <br/>
                    <pre>
rake db:migrate
                    </pre> <br/>
                </dd><br/>
                <dt>Step 2: Create a model for Categories </dt>
                <dd>
                    <pre>
rails generate model Category category_name:string
                    </pre> <br/>
                    <pre>
rake db:migrate
                    </pre> <br/>
                </dd><br/>
               <dt>Step 3: Create a model for Comments </dt>
                <dd>
                    <pre>
rails generate model Comment comment_body:string movie_id:integer
                    </pre> <br/>
                    <pre>
rake db:migrate
                    </pre> <br/>
                </dd>
                <br/>
            </dl>
            <p> With this our base tables are created. We will now start adding relations between the models</p>
            <dl>
                <dt>Step 4: Update the comments model with association </dt>
                <dd> <br/> Modify the comments model file to look like below:
                <br/> <i> app/models/comment.rb</i>
                    <pre>
class Comment < ActiveRecord::Base
    belongs_to :movie
end
                    </pre> Save the file. <br/><br/>
                </dd><br/>
                <dt>Step 5: Update the movies model with association </dt>
                <dd> <br/> Modify the movies model file to look like below:
                <br/> <i> app/models/movie.rb</i>
                    <pre>
class Movie < ActiveRecord::Base
    has_many :comments
end
                    </pre> Save the file. <br/>
                </dd><br/>
              </dl>
              <p> We can enter the `rails console`  as shown in the video and verify the tables and their associations<br/>
              We can now add associations for category and movie models as well.
              </p>
              <dl>
              <dt>Step 6: Create a new model named Categorizations </dt>
                <dd> <br/> Modify the categorization model file to look like below:
                <br/> <i> app/models/categorization.rb</i>
                    <pre>
rails generate model Categorization category_id:integer movie_id:integer
                    </pre> <br/>This will create a migration script. <br/>
                    Since we want this table to just hold the associations between movies and categories, we will create this table without its id.<br/>
                    To do this, we need to edit the migration file to look like below:
                    <i>db/migrate/2015XXXXXXXX_create_categorizations.rb</i>
                   <pre>
class CreateCategorizations < ActiveRecord::Migration
  def change
    create_table :categorizations, :id => false do |t|
      t.integer :category_id
      t.integer :movie_id

      t.timestamps
    end
  end
end
                   </pre><br/> Note that we add the :id => false clause here.
                   <br/>
                    <pre>
rake db:migrate
                    </pre> <br/>
                </dd><br/>
                <dt>Step 7: Update the model with associations</dt>
                <dd> <br/> Modify the categorization model file to look like below:
                <br/> <i> app/models/categorization.rb</i>
                    <pre>
class Categorization < ActiveRecord::Base
    belongs_to :movie
    belongs_to :category
end

                    </pre> Save the file. <br/><br/>
                </dd><br/>
                <dt>Step 8: Update the movies model with association </dt>
                <dd> <br/> Modify the movies model file to look like below:
                <br/> <i> app/models/movie.rb</i>
                    <pre>
class Movie < ActiveRecord::Base
    has_many :comments
    has_many :categorizations
    has_many :categories, through: :categorizations
end
                    </pre> Save the file. <br/><br/>
                </dd><br/>
                <dt>Step 9: Update the categories model with association </dt>
                <dd> <br/> Modify the category model file to look like below:
                <br/> <i> app/models/category.rb</i>
                    <pre>
class Category < ActiveRecord::Base
    has_many :categorizations
    has_many :movies, through: :categorizations
end
                    </pre> Save the file. <br/>
                </dd><br/>Your workspace should look similar to the code present here: <a href="https://github.com/sudhakarg/moviereviewapp/tree/tables_associations">https://github.com/sudhakarg/moviereviewapp/tree/tables_associations</a>
                <br/><br/>
                <p> You can now try to create few categories, movies and associate them by creating categorizations as shown in the video</p><br/>


              </dl>
           </div>