Chapter 13

Gemfile

@@ -3,14 +3,17 @@ git_source(:github){|repo| "https://github.com/#{repo}.git"}
 
 ruby "2.7.0"
 
+gem "active_storage_validations", "0.8.2"
 gem "bcrypt", "3.1.13"
 gem "bootsnap", ">= 1.4.2", require: false
 gem "bootstrap-sass", "3.4.1"
 gem "bootstrap-will_paginate", "1.0.0"
 gem "config"
 gem "faker", "2.1.2"
 gem "figaro"
+gem "image_processing", "1.9.3"
 gem "jbuilder", "~> 2.7"
+gem "mini_magick", "4.9.5"
 gem "puma", "~> 4.1"
 gem "rails", "~> 6.0.3", ">= 6.0.3.3"
 gem "rails-i18n"

Gemfile.lock

@@ -37,6 +37,8 @@ GEM
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    active_storage_validations (0.8.2)
+      rails (>= 5.2.0)
     activejob (6.0.3.3)
       activesupport (= 6.0.3.3)
       globalid (>= 0.3.6)
@@ -136,6 +138,9 @@ GEM
       activesupport (>= 4.2.0)
     i18n (1.8.5)
       concurrent-ruby (~> 1.0)
+    image_processing (1.9.3)
+      mini_magick (>= 4.9.5, < 5)
+      ruby-vips (>= 2.0.13, < 3)
     jaro_winkler (1.5.4)
     jbuilder (2.10.1)
       activesupport (>= 5.0.0)
@@ -151,6 +156,7 @@ GEM
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
     mimemagic (0.3.5)
+    mini_magick (4.9.5)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.2)
@@ -217,6 +223,8 @@ GEM
       rack (>= 1.1)
       rubocop (>= 0.72.0)
     ruby-progressbar (1.10.1)
+    ruby-vips (2.0.17)
+      ffi (~> 1.9)
     rubyzip (2.3.0)
     sass-rails (6.0.0)
       sassc-rails (~> 2.1, >= 2.1.1)
@@ -285,6 +293,7 @@ PLATFORMS
   web-unknown
 
 DEPENDENCIES
+  active_storage_validations (= 0.8.2)
   bcrypt (= 3.1.13)
   bootsnap (>= 1.4.2)
   bootstrap-sass (= 3.4.1)
@@ -294,8 +303,10 @@ DEPENDENCIES
   config
   faker (= 2.1.2)
   figaro
+  image_processing (= 1.9.3)
   jbuilder (~> 2.7)
   listen (~> 3.2)
+  mini_magick (= 4.9.5)
   puma (~> 4.1)
   rails (~> 6.0.3, >= 6.0.3.3)
   rails-i18n

app/assets/stylesheets/custom.scss

@@ -146,3 +146,53 @@ input {
     border-bottom: 1px solid $gray-lighter;
   }
 }
+
+.microposts {
+  list-style: none;
+  padding: 0;
+  li {
+    padding: 10px 0;
+    border-top: 1px solid #e8e8e8;
+  }
+  .user {
+    margin-top: 5em;
+    padding-top: 0;
+  }
+  .content {
+    display: block;
+    margin-left: 60px;
+    img {
+      display: block;
+      padding: 5px 0;
+    }
+  }
+
+  .timestamp {
+    color: $gray-light;
+    display: block;
+    margin-left: 60px;
+  }
+.gravatar {
+  float: left;
+  margin-right: 10px;
+  width: 8%;
+  }
+}
+aside {
+  textarea {
+    height: 100px;
+    margin-bottom: 5px;
+  }
+}
+span.image {
+  margin-top: 10px;
+  width: 20px;
+  input {
+   border: 0;
+  }
+}
+
+input[type="file"] {
+    display: block;
+    position: absolute;
+}

app/controllers/account_activations_controller.rb

@@ -4,7 +4,7 @@ def edit
     if user && !user.activated? && user.authenticated?(:activation, params[:id])
       user.activate
       log_in user
-      flash[:success] = t("reset.account_activated")
+      flash[:success] = t("reset.messagerb")
       redirect_to user
     else
       flash[:danger] = t("reset.invalid_activation")

app/controllers/application_controller.rb

@@ -11,4 +11,12 @@ def set_locale
   def default_url_options
     {locale: I18n.locale}
   end
+
+  def logged_in_user
+    unless logged_in?
+      store_location
+      flash[:danger] = t("login_in.messages")
+      redirect_to login_url
+    end
+  end
 end

app/controllers/microposts_controller.rb

@@ -0,0 +1,39 @@
+class MicropostsController < ApplicationController
+  before_action :logged_in_user, only: [:create, :destroy]
+  before_action :correct_user, only: :destroy
+
+  def create
+    @micropost = current_user.microposts.build micropost_params
+    @micropost.image.attach(params[:micropost][:image])
+    if @micropost.save
+      flash[:success] = I18n.t("micropost.micropost_created")
+      redirect_to root_url
+    else
+      @feed_items = current_user.feed.paginate(page: params[:page])
+      render "static_pages/home"
+    end
+  end
+
+  def destroy
+    if @micropost.destroy
+    flash[:success] = t("micropost.micropost_deleted")
+    else
+      flash[:warning] = t("micropost.error")
+    end
+    redirect_to request.referer || root_url
+  end
+
+  private
+
+  def micropost_params
+    params.require(:micropost).permit :content, :picture
+  end
+
+  def correct_user
+    @micropost = current_user.microposts.find_by id: params[:id]
+    return if  @micropost.present?
+
+    flash[:warning] = t("micropost.delete_error")
+    redirect_to root_url
+  end
+end

app/controllers/password_resets_controller.rb

@@ -4,7 +4,7 @@ class PasswordResetsController < ApplicationController
   def new; end
 
   def create
-    if @user = User.find_by(email: params[:password_reset][:email].downcase)
+    if @user = User.find_by email: params[:password_reset][:email].downcase
       @user.create_reset_digest
       @user.send_password_reset_email
       flash[:info] = t("reset.email_sent")
@@ -17,7 +17,7 @@ def create
 
   def update
     if params[:user][:password].empty?
-      @user.errors.add(:password, t("reset.email_address"))
+      @user.errors.add(:password, t("reset.can_be")
       render :edit
     elsif @user.update(user_params)
       log_in @user
@@ -41,7 +41,7 @@ def get_user
   end
 
   def valid_user
-    return if activated? && @user.authenticated?(:reset, params[:id])
+    return if (@user.activated? && @user.authenticated?(:reset, params[:id]))
     flash[:danger] = t("reset.home_has_been_reset")
     redirect_to root_url
   end
@@ -57,4 +57,5 @@ def check_expiration
     redirect_to new_password_reset_url
     end
   end
+
 end

app/controllers/static_pages_controller.rb

@@ -1,5 +1,10 @@
 class StaticPagesController < ApplicationController
-  def home; end
+  def home
+    if logged_in?
+      @micropost  = current_user.microposts.build
+      @feed_items = current_user.feed.paginate(page: params[:page])
+    end
+  end
 
   def help; end
 end

app/controllers/users_controller.rb

@@ -4,7 +4,9 @@ class UsersController < ApplicationController
   before_action :correct_user, only: %i(edit update)
   before_action :admin_user, only: :destroy
 
-  def show; end
+  def show
+    @microposts = @user.microposts.paginate(page: params[:page])
+  end
 
   def edit; end
 

app/javascript/packs/application.js

@@ -4,3 +4,4 @@ require("@rails/activestorage").start()
 require("channels")
 require("jquery")
 require ("bootstrap")
+require("packs/micopost")

app/javascript/packs/micropost.js

@@ -0,0 +1,7 @@
+  $("#micropost_image").bind("change", function() {
+    var size_in_megabytes = this.files[0].size/1024/1024;
+    if (size_in_megabytes > 5) {
+      alert("Maximum file size is 5MB. Please choose a smaller file.");
+    }
+  });
+

app/models/micropost.rb

@@ -0,0 +1,13 @@
+class Micropost < ApplicationRecord
+  belongs_to :user
+ # default_scope -> { order(created_at: :desc) }
+  scope :by_created_at, ->{order(created_at: :desc)}
+  has_one_attached :image
+  validates :user_id, presence: true
+  validates :content, presence: true, length: {maximum: 140}
+  validates :image, content_type: {in: %w[image/jpeg image/gif image/png], message: "must be a valid image format"}, size: {less_than: 5.megabytes, message: "should be less than 5MB"}
+
+  def display_image
+    image.variant(resize_to_limit: [500, 500])
+  end
+end

app/models/user.rb

@@ -10,6 +10,7 @@ class User < ApplicationRecord
 
   has_secure_password
   validates :password, presence: true, length: {minimum: Settings.user.password}, allow_nil: true
+  has_many :microposts, dependent: :destroy
 
   def self.digest string
     cost =  if ActiveModel::SecurePassword.min_cost
@@ -33,6 +34,7 @@ def authenticated? remember_token
     return false if remember_digest.nil?
 
     BCrypt::Password.new(remember_digest).is_password?(remember_token)
+
   end
 
   def authenticated? attribute, token
@@ -46,13 +48,10 @@ def activate
     update_columns activated: true, activated_at: DateTime.now
   end
 
-  def send_activation_email
-    UserMailer.account_activation(self).deliver_now
-  end
-
   def create_reset_digest
+
     self.reset_token = User.new_token
-    update_column reset_digest: User.digest(reset_token), reset_sent_at: DateTime.now
+    update_columns reset_digest: User.digest(reset_token), reset_sent_at: DateTime.now
   end
 
   def send_password_reset_email
@@ -67,6 +66,10 @@ def forget
     update_attribute(:remember_digest, nil)
   end
 
+  def feed
+    Micropost.by_created_at
+  end
+
   private
 
   def create_activation_digest

app/views/microposts/_micropost.html.erb

@@ -0,0 +1,14 @@
+<li id="micropost-<%= micropost.id %>">
+  <%= link_to gravatar_for(micropost.user, size: 50), micropost.user %>
+  <span class="user"><%= link_to micropost.user.name, micropost.user %></span>
+  <span class="content">
+    <%= micropost.content %>
+    <%= image_tag micropost.display_image if micropost.image.attached? %>
+  </span>
+  <span class="timestamp">
+    Posted <%= time_ago_in_words(micropost.created_at) %> ago.
+    <% if current_user? micropost.user %>
+    <%= link_to t("micropost.button"), micropost, method: :delete, data: {confirm: t("micropost.confirm")} %>
+    <% end %>
+  </span>
+</li>

app/views/shared/_error_messages.html.erb

@@ -1,10 +1,10 @@
-<% if @user.errors.any? %>
+<% if object.errors.any? %>
   <div id="error_explanation">
     <div class="alert alert-danger">
-      <%= t("users.messages") %> <%= pluralize(@user.errors.count, t("users.error")) %>.
+      <%= t("users.messages") %> <%= pluralize object.errors.count, t("users.error") %>.
     </div>
     <ul>
-      <% @user.errors.full_messages.each do |msg| %>
+      <% object.errors.full_messages.each do |msg| %>
         <li><%= msg %></li>
       <% end %>
     </ul>

app/views/shared/_feed.html.erb

@@ -0,0 +1,6 @@
+<% if @feed_items.any? %>
+  <ol class="microposts">
+    <%= render @feed_items %>
+  </ol>
+  <%= will_paginate @feed_items, params: { controller: :static_pages, action: :home } %>
+<% end %>

app/views/shared/_micropost_form.html.erb

@@ -0,0 +1,12 @@
+<%= form_for(@micropost, html: { multipart: true }) do |f| %>
+  <%= render "shared/error_messages", object: f.object %>
+  <div class="field">
+    <%= f.text_area :content, placeholder: "Compose new micropost..." %>
+  </div>
+  <%= f.submit "Post", class: "btn btn-primary" %>
+  <span class="image">
+    <%= f.file_field :image %>
+  </span>
+<% end %>
+
+<%= javascript_pack_tag "micropost" %>

app/views/shared/_user_info.html.erb

@@ -0,0 +1,4 @@
+<%= link_to gravatar_for(current_user, size: 50), current_user %>
+<h1><%= current_user.name %></h1>
+<span><%= link_to t("micropost.title"), current_user %></span>
+<span><%= pluralize(current_user.microposts.count, "micropost") %></span>

app/views/static_pages/home.html.erb

@@ -1,4 +1,19 @@
-<% provide :title, t("home") %>
+<% if logged_in? %>
+  <div class="row">
+    <aside class="col-md-4">
+      <section class="user_info">
+        <%= render "shared/user_info" %>
+      </section>
+      <section class="micropost_form">
+        <%= render "shared/micropost_form" %>
+      </section>
+    </aside>
+    <div class="col-md-8">
+      <h3>Micropost Feed</h3>
+      <%= render "shared/feed" %>
+    </div>
+  </div>
+<% else %>
 <div class="center jumbotron">
   <h1><%= t("title") %></h1>
   <h2>
@@ -8,3 +23,4 @@
   </h2>
   <%= link_to t("static_pages.home.button"), '#', class: "btn btn-lg btn-primary" %>
 </div>
+<% end %>

app/views/user_mailer/account_activation.html.erb

@@ -5,3 +5,4 @@
   <%= t("email.account")%>
 </p>
 <%= link_to t("email.activate"), edit_account_activation_url(id: @user.activation_token, email: @user.email) %>
+