Basic feeds

.gitignore

@@ -13,3 +13,4 @@
 # Ignore all logfiles and tempfiles.
 /log/*.log
 /tmp
+.rvmrc

Gemfile

@@ -1,6 +1,7 @@
 source 'https://rubygems.org'
 
 gem 'rails', '3.2.3'
+gem 'sorcery'
 gem 'jbuilder'
 gem 'simple_form'
 gem 'jquery-rails'

Gemfile.lock

@@ -29,6 +29,7 @@ GEM
       i18n (~> 0.6)
       multi_json (~> 1.0)
     arel (3.0.2)
+    bcrypt-ruby (3.0.1)
     blankslate (2.1.2.4)
     builder (3.0.0)
     coffee-rails (3.2.2)
@@ -42,6 +43,8 @@ GEM
     erubis (2.7.0)
     execjs (1.3.2)
       multi_json (~> 1.0)
+    faraday (0.8.0)
+      multipart-post (~> 1.1)
     haml (3.1.5)
     haml-rails (0.3.4)
       actionpack (~> 3.0)
@@ -72,6 +75,11 @@ GEM
       treetop (~> 1.4.8)
     mime-types (1.18)
     multi_json (1.3.5)
+    multipart-post (1.1.5)
+    oauth (0.4.6)
+    oauth2 (0.5.2)
+      faraday (~> 0.7)
+      multi_json (~> 1.0)
     polyglot (0.3.3)
     rack (1.4.1)
     rack-cache (1.2)
@@ -106,6 +114,10 @@ GEM
     simple_form (2.0.2)
       actionpack (~> 3.0)
       activemodel (~> 3.0)
+    sorcery (0.7.12)
+      bcrypt-ruby (~> 3.0.0)
+      oauth (~> 0.4.4)
+      oauth2 (~> 0.5.1)
     sprockets (2.1.3)
       hike (~> 1.2)
       rack (~> 1.0)
@@ -135,6 +147,7 @@ DEPENDENCIES
   rails (= 3.2.3)
   sass-rails (~> 3.2.3)
   simple_form
+  sorcery
   sqlite3
   therubyracer
   uglifier (>= 1.0.3)

app/assets/javascripts/feed_items.js

@@ -0,0 +1,12 @@
+$(document).ready(function() {
+  $("#feed_item_kind").change(function(e) {
+    $("input[data-enable-on]").each(function() {
+      $(this).attr('disabled', 'disabled');
+    });
+
+    $("input[data-enable-on="+$(e.target).val()+"]").removeAttr('disabled');
+  });
+
+  var enable = $("#feed_item_kind").val();
+  $("input[data-enable-on="+enable+"]").removeAttr('disabled');
+});

app/assets/stylesheets/application.css

@@ -12,3 +12,7 @@
  *= require_self
  *= require_tree .
 */
+
+div.feed-item { margin: 20px 20px; }
+div.feed-item img { display: block; max-width: 300px; margin: 0 auto; }
+div.feed-item p { margin-top: 20px; }

app/controllers/application_controller.rb

@@ -1,3 +1,12 @@
 class ApplicationController < ActionController::Base
   protect_from_forgery
+
+  before_filter :require_login
+
+  protected
+
+  def not_authenticated
+    redirect_to root_path, :alert => "Please login first."
+  end
+
 end

app/controllers/feed_items_controller.rb

@@ -0,0 +1,55 @@
+class FeedItemsController < ApplicationController
+  before_filter :require_login, :except => [:index]
+
+  def new
+    @feed_item = FeedItem.new
+
+    respond_to do |format|
+      format.html
+      format.json { render json: @feed_item }
+    end
+  end
+
+  def edit
+    @feed_item = current_user.feed.feed_items.find(params[:id])
+  end
+
+  def create
+    kind = params[:feed_item].delete(:kind)
+    @feed_item = current_user.feed.feed_item_of(kind).new(params[:feed_item])
+
+    respond_to do |format|
+      if @feed_item.save
+        format.html { redirect_to current_user.feed, notice: 'Feed item was successfully created.' }
+        format.json { render json: @feed_item, status: :created, location: @feed_item }
+      else
+        format.html { render action: "new" }
+        format.json { render json: @feed_item.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  def update
+    @feed_item = current_user.feed.feed_items.find(params[:id])
+
+    respond_to do |format|
+      if @feed_item.update_attributes(params[:feed_item])
+        format.html { redirect_to current_user.feed, notice: 'Feed item was successfully updated.' }
+        format.json { head :no_content }
+      else
+        format.html { render action: "edit" }
+        format.json { render json: @feed_item.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
+  def destroy
+    @feed_item = current_user.feed.feed_items.find(params[:id])
+    @feed_item.destroy
+
+    respond_to do |format|
+      format.html { redirect_to root_url }
+      format.json { head :no_content }
+    end
+  end
+end

app/controllers/feeds_controller.rb

@@ -0,0 +1,22 @@
+class FeedsController < ApplicationController
+  before_filter :require_login, :except => [:index]
+
+  def index
+    @feed_items = FeedItem.last_first
+
+    respond_to do |format|
+      format.html { render action: :show }
+      format.json { render json: @feed_items }
+    end
+  end
+
+  def show
+    @feed_items = Feed.find_by_name!(params[:id]).feed_items.last_first
+
+    respond_to do |format|
+      format.html
+      format.json { render json: @feed }
+    end
+  end
+
+end

app/controllers/sessions_controller.rb

@@ -0,0 +1,23 @@
+class SessionsController < ApplicationController
+  skip_before_filter :require_login, :except => [:destroy]
+
+  def new
+    @user = User.new
+  end
+
+  def create
+    respond_to do |format|
+      if @user = login(params[:username], params[:password])
+        format.html { redirect_back_or_to(:feed_items, :notice => 'Login successful.') }
+      else
+        format.html { flash.now[:alert] = "Login failed."; render :action => "new" }
+      end
+    end
+  end
+
+  def destroy
+    logout
+    redirect_to(:feed_items, :notice => 'Logged out!')
+  end
+
+end

app/controllers/users_controller.rb

@@ -0,0 +1,26 @@
+class UsersController < ApplicationController
+  skip_before_filter :require_login, :only => [:new, :create]
+
+  def new
+    @user = User.new
+
+    respond_to do |format|
+      format.html
+    end
+  end
+
+  def create
+    @user = User.new(params[:user])
+
+    respond_to do |format|
+      if @user.save
+        auto_login(@user)
+        format.html { redirect_to(login_path, :notice => 'Creation successful.') }
+      else
+        format.html { render :action => "new" }
+      end
+    end
+  end
+
+end
+

app/helpers/feed_items_helper.rb

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

app/models/feed.rb

@@ -0,0 +1,17 @@
+class Feed < ActiveRecord::Base
+  belongs_to :user, inverse_of: :feed
+  has_many :feed_items, inverse_of: :feed
+  has_many :image_items
+  has_many :text_items
+  has_many :link_items
+
+  delegate :gravatar, to: :user
+
+  def feed_item_of(kind)
+    send(kind.tableize.to_sym)
+  end
+
+  def to_param
+    name
+  end
+end

app/models/feed_item.rb

@@ -0,0 +1,16 @@
+class FeedItem < ActiveRecord::Base
+  belongs_to :feed, inverse_of: :feed_items
+
+  def self.last_first
+    order("created_at DESC")
+  end
+
+  def kind
+    read_attribute(:type) || "TextItem"
+  end
+
+  def username
+    feed.name
+  end
+
+end

app/models/image_item.rb

@@ -0,0 +1,11 @@
+class ImageItem < FeedItem
+  attr_accessible :title, :body, :image_url
+
+  validates :image_url, presence: true, format: /^https?:\/\/.+\.(?:jpg|jpeg|gif|png)$/i, length: {maximum: 2048}
+  validates :body, length: {minumum: 1, maximum: 256}
+
+  def to_partial_path
+    'feed_items/image_item'
+  end
+
+end

app/models/link_item.rb

@@ -0,0 +1,11 @@
+class LinkItem < FeedItem
+  attr_accessible :title, :body, :link_url
+
+  validates :link_url, presence: true, format: /^https?:\/\/.+$/i, length: {maximum: 2048}
+  validates :body, presence: true, length: {minumum: 1, maximum: 256}
+
+  def to_partial_path
+    'feed_items/link_item'
+  end
+
+end

app/models/text_item.rb

@@ -0,0 +1,10 @@
+class TextItem < FeedItem
+  attr_accessible :body, :title
+
+  validates :body, presence: true, length: {minumum: 1, maximum: 256}
+
+  def to_partial_path
+    'feed_items/text_item'
+  end
+
+end

app/models/user.rb

@@ -0,0 +1,36 @@
+require 'digest/md5'
+
+class User < ActiveRecord::Base
+  has_one :feed, inverse_of: :user
+  attr_accessible :email, :password, :password_confirmation
+  authenticates_with_sorcery!
+
+  validates :username, presence: true, format: /^[\d\w]+$/,length: {minimum: 2, message: "password must be at least 2 characters long"}
+  validates_length_of :password, :minimum => 6, :message => "password must be at least 6 characters long", :if => :password
+  validates_confirmation_of :password, :message => "should match confirmation", :if => :password
+
+  before_validation :clean_email
+  before_create :setup_feed
+
+  def created?(item)
+    item.feed == feed
+  end
+
+  def gravatar(s='40')
+    @gravatar    ||= {}
+    @gravatar[s] ||= "http://www.gravatar.com/avatar/#{Digest::MD5.hexdigest(email)}?s=#{s}"
+  end
+
+  private
+
+  def setup_feed
+    build_feed
+    feed.name = username
+  end
+
+  def clean_email
+    if email.respond_to? :trim
+      email.trim!.downcase!
+    end
+  end
+end

app/views/feed_items/_form.html.haml

@@ -0,0 +1,12 @@
+.well
+  - form_url = @feed_item.new_record? ? feed_items_path : feed_item_path(@feed_item)
+  = simple_form_for(@feed_item, as: :feed_item, url: form_url, html: {class: "form-horizontal"}) do |f|
+    = f.error_notification
+
+    .form-inputs
+      = f.input :kind, as: :select, collection: [%w(Text TextItem), %w(Image ImageItem), %w(Link LinkItem)], disabled: !@feed_item.new_record?
+      = f.input :link_url,  disabled: true, input_html: {data: {'enable-on' => 'LinkItem'}}
+      = f.input :image_url, disabled: true, input_html: {data: {'enable-on' => 'ImageItem'}}
+      = f.input :body, input_html: {rows: 10}
+
+      = f.button :submit

app/views/feed_items/_image_item.html.haml

@@ -0,0 +1,4 @@
+%img{class: "feed_item", src: feed_item.image_url}
+%p
+  %i(class="icon-eye-open")
+  = feed_item.body

app/views/feed_items/_link_item.html.haml

@@ -0,0 +1,2 @@
+%i(class="icon-tags")
+= link_to feed_item.body, feed_item.link_url

app/views/feed_items/_text_item.html.haml

@@ -0,0 +1,2 @@
+%i(class="icon-comment")
+= feed_item.body

app/views/feed_items/edit.html.haml

@@ -0,0 +1,5 @@
+%h1 Edit item
+
+= render 'form'
+
+= link_to 'Back', feed_items_path

app/views/feed_items/new.html.haml

@@ -0,0 +1,5 @@
+%h1 New item
+
+= render 'form'
+
+= link_to 'Back', feed_items_path

app/views/feeds/show.html.haml

@@ -0,0 +1,14 @@
+- if logged_in?
+  = link_to 'Add to the feed', new_feed_item_path, class: "btn btn-primary pull-right"
+- @feed_items.each do |feed_item|
+  .row
+    .span6.offset3.well
+      %div
+        %img{src: feed_item.feed.gravatar}
+        %strong= link_to(feed_item.username, feed_item.feed)
+        = distance_of_time_in_words_to_now(feed_item.created_at) + " ago"
+      %div.feed-item= render partial: feed_item, as: :feed_item
+      - if current_user.created?(feed_item)
+        = link_to 'Edit', edit_feed_item_path(feed_item), class: "btn"
+        = link_to 'Destroy', feed_item_path(feed_item), :confirm => 'Are you sure?', :method => :delete, class: "btn btn-danger"
+