#4-add-model-blog-crud

app/assets/javascripts/blogs.js

@@ -0,0 +1,2 @@
+// Place all the behaviors and hooks related to the matching controller here.
+// All this logic will automatically be available in application.js.

app/assets/stylesheets/blogs.scss

@@ -0,0 +1,3 @@
+// Place all the styles related to the Blogs controller here.
+// They will automatically be included in application.css.
+// You can use Sass (SCSS) here: http://sass-lang.com/

app/assets/stylesheets/scaffolds.scss

@@ -0,0 +1,84 @@
+body {
+  background-color: #fff;
+  color: #333;
+  margin: 33px;
+  font-family: verdana, arial, helvetica, sans-serif;
+  font-size: 13px;
+  line-height: 18px;
+}
+
+p, ol, ul, td {
+  font-family: verdana, arial, helvetica, sans-serif;
+  font-size: 13px;
+  line-height: 18px;
+}
+
+pre {
+  background-color: #eee;
+  padding: 10px;
+  font-size: 11px;
+}
+
+a {
+  color: #000;
+
+  &:visited {
+    color: #666;
+  }
+
+  &:hover {
+    color: #fff;
+    background-color: #000;
+  }
+}
+
+th {
+  padding-bottom: 5px;
+}
+
+td {
+  padding: 0 5px 7px;
+}
+
+div {
+  &.field, &.actions {
+    margin-bottom: 10px;
+  }
+}
+
+#notice {
+  color: green;
+}
+
+.field_with_errors {
+  padding: 2px;
+  background-color: red;
+  display: table;
+}
+
+#error_explanation {
+  width: 450px;
+  border: 2px solid red;
+  padding: 7px 7px 0;
+  margin-bottom: 20px;
+  background-color: #f0f0f0;
+
+  h2 {
+    text-align: left;
+    font-weight: bold;
+    padding: 5px 5px 5px 15px;
+    font-size: 12px;
+    margin: -7px -7px 0;
+    background-color: #c00;
+    color: #fff;
+  }
+
+  ul li {
+    font-size: 12px;
+    list-style: square;
+  }
+}
+
+label {
+  display: block;
+}

app/controllers/blogs_controller.rb

@@ -0,0 +1,59 @@
+class BlogsController < ApplicationController
+  before_action :set_blog, only: [:show, :edit, :update, :destroy]
+
+  # GET /blogs
+  def index
+    @blogs = Blog.all
+  end
+
+  # GET /blogs/1
+  def show
+
+  end
+
+  # GET /blogs/new
+  def new
+    @blog = Blog.new
+  end
+
+  # GET /blogs/1/edit
+  def edit
+  end
+
+  # POST /blogs
+  def create
+    @blog = Blog.new(blog_params)
+
+    if @blog.save
+      redirect_to @blog, notice: 'Blog was successfully created.'
+    else
+      render :new
+    end
+  end
+
+  # PATCH/PUT /blogs/1
+  def update
+    if @blog.update(blog_params)
+      redirect_to @blog, notice: 'Blog was successfully updated.'
+    else
+      render :edit
+    end
+  end
+
+  # DELETE /blogs/1
+  def destroy
+    @blog.destroy
+    redirect_to blogs_url, notice: 'Blog was successfully destroyed.'
+  end
+
+  private
+    # Use callbacks to share common setup or constraints between actions.
+    def set_blog
+      @blog = Blog.find(params[:id])
+    end
+
+    # Only allow a trusted parameter "white list" through.
+    def blog_params
+      params.require(:blog).permit(:name, :alias, :user_id)
+    end
+end

app/helpers/blogs_helper.rb

@@ -0,0 +1,2 @@
+module BlogsHelper
+end

app/models/blog.rb

@@ -0,0 +1,23 @@
+class Blog < ApplicationRecord
+  belongs_to :user
+end
+
+# == Schema Information
+#
+# Table name: blogs
+#
+#  alias      :string(255)
+#  created_at :datetime         not null
+#  id         :integer          not null, primary key
+#  name       :string(255)
+#  updated_at :datetime         not null
+#  user_id    :integer
+#
+# Indexes
+#
+#  index_blogs_on_user_id  (user_id)
+#
+# Foreign Keys
+#
+#  fk_rails_...  (user_id => users.id)
+#

app/models/user.rb

@@ -6,9 +6,12 @@ class User < ApplicationRecord
   devise :database_authenticatable, :registerable,
          :recoverable, :rememberable, :trackable, :validatable
   validates :name, :email, presence: true
+  has_many :blogs
+
 end
 
 
+
 # == Schema Information
 #
 # Table name: users

app/views/blogs/_form.html.erb

@@ -0,0 +1,32 @@
+<%= form_with(model: blog, local: true) do |form| %>
+  <% if blog.errors.any? %>
+    <div id="error_explanation">
+      <h2><%= pluralize(blog.errors.count, "error") %> prohibited this blog from being saved:</h2>
+
+      <ul>
+      <% blog.errors.full_messages.each do |message| %>
+        <li><%= message %></li>
+      <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <div class="field">
+    <%= form.label :name %>
+    <%= form.text_field :name, id: :blog_name %>
+  </div>
+
+  <div class="field">
+    <%= form.label :alias %>
+    <%= form.text_field :alias, id: :blog_alias %>
+  </div>
+
+  <div class="field">
+    <%= form.label :user_id %>
+    <%= form.text_field :user_id, id: :blog_user_id %>
+  </div>
+
+  <div class="actions">
+    <%= form.submit %>
+  </div>
+<% end %>

app/views/blogs/edit.html.erb

@@ -0,0 +1,6 @@
+<h1>Editing Blog</h1>
+
+<%= render 'form', blog: @blog %>
+
+<%= link_to 'Show', @blog %> |
+<%= link_to 'Back', blogs_path %>

app/views/blogs/index.html.erb

@@ -0,0 +1,31 @@
+<p id="notice"><%= notice %></p>
+
+<h1>Blogs</h1>
+
+<table>
+  <thead>
+    <tr>
+      <th>Name</th>
+      <th>Alias</th>
+      <th>User</th>
+      <th colspan="3"></th>
+    </tr>
+  </thead>
+
+  <tbody>
+    <% @blogs.each do |blog| %>
+      <tr>
+        <td><%= blog.name %></td>
+        <td><%= blog.alias %></td>
+        <td><%= blog.user %></td>
+        <td><%= link_to 'Show', blog %></td>
+        <td><%= link_to 'Edit', edit_blog_path(blog) %></td>
+        <td><%= link_to 'Destroy', blog, method: :delete, data: { confirm: 'Are you sure?' } %></td>
+      </tr>
+    <% end %>
+  </tbody>
+</table>
+
+<br>
+
+<%= link_to 'New Blog', new_blog_path %>

app/views/blogs/new.html.erb

@@ -0,0 +1,5 @@
+<h1>New Blog</h1>
+
+<%= render 'form', blog: @blog %>
+
+<%= link_to 'Back', blogs_path %>

app/views/blogs/show.html.erb

@@ -0,0 +1,19 @@
+<p id="notice"><%= notice %></p>
+
+<p>
+  <strong>Name:</strong>
+  <%= @blog.name %>
+</p>
+
+<p>
+  <strong>Alias:</strong>
+  <%= @blog.alias %>
+</p>
+
+<p>
+  <strong>User:</strong>
+  <%= @blog.user %>
+</p>
+
+<%= link_to 'Edit', edit_blog_path(@blog) %> |
+<%= link_to 'Back', blogs_path %>

config/routes.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 Rails.application.routes.draw do
+  resources :blogs
   devise_for :users
   # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
 end

db/migrate/20170824183642_create_blogs.rb

@@ -0,0 +1,11 @@
+class CreateBlogs < ActiveRecord::Migration[5.1]
+  def change
+    create_table :blogs do |t|
+      t.string :name
+      t.string :alias
+      t.references :user, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,16 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170812172006) do
+ActiveRecord::Schema.define(version: 20170824183642) do
+
+  create_table "blogs", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8" do |t|
+    t.string "name"
+    t.string "alias"
+    t.bigint "user_id"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["user_id"], name: "index_blogs_on_user_id"
+  end
 
   create_table "users", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8" do |t|
     t.string "name"
@@ -30,4 +39,5 @@
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
 
+  add_foreign_key "blogs", "users"
 end