16 Categories New

LAB

Add the components necessary for creating new Categories.

Hint: You'll need a new controller, new routes, and at least one new view.

SOLUTION

config/routes.rb

  resources :categories

New file: app/controllers/categories_controller.rb

class CategoriesController < ApplicationController
  def new
    @category = Category.new
  end

  def create
    @category = Category.new category_params
    if @category.save
      redirect_to posts_path, flash: { notice: 'Your category has been created.' }
    else
      flash.now[:error] = @category.errors.full_messages
      render :new
    end
  end

  private

  def category_params
    params.require(:category).permit(:name, :title, :description, :sidebar, :submission_text)
  end
end

app/views/layouts/application.html.erb

        <nav id="sidebar">
          <%= link_to 'Submit a new link', new_post_path %>
          <%= link_to 'Submit a new text post', new_post_path(post_type: :text) %>
          <%= link_to 'Create a new category', new_category_path %>
        </nav>

New directory: app/views/categories

New file: app/views/categories/new.html.erb

<%= form_for @category do |f| %>
  <fieldset>
    <%= f.label :name %>
    <%= f.text_field :name %>
  </fieldset>

  <fieldset>
    <%= f.label :title %>
    <%= f.text_field :title %>
  </fieldset>

  <fieldset>
    <%= f.label :description %>
    <%= f.text_area :description %>
  </fieldset>

  <fieldset>
    <%= f.label :sidebar %>
    <%= f.text_area :sidebar %>
  </fieldset>

  <fieldset>
    <%= f.label :submission_text %>
    <%= f.text_area :submission_text %>
  </fieldset>

  <%= f.submit class: 'btn btn-default' %>
<% end %>

Try out the new form, and check the results in the Rails console. If it looks good, commit!

$ git add .
$ git commit -m "Create new categories."

Next: Categories Posts