#40 Add model soft delete

Gemfile

@@ -83,6 +83,7 @@ gem 'font-awesome-rails', '~> 4.4'
 #gem 'sprockets-es6'
 
 gem "sentry-raven" #, :github => "getsentry/raven-ruby"
+gem "paranoia", "~> 2.0"
 
 group :development do
   gem 'capistrano'

Gemfile.lock

@@ -238,6 +238,8 @@ GEM
       mimemagic (= 0.3.0)
     paperclip-meta (1.2.0)
       paperclip (>= 3.0.2, < 5.0)
+    paranoia (2.1.4)
+      activerecord (~> 4.0)
     pg (0.18.3)
     polyamorous (1.2.0)
       activerecord (>= 3.0)
@@ -431,6 +433,7 @@ DEPENDENCIES
   paperclip (~> 4.0)
   paperclip-meta
   paperclip-qiniu!
+  paranoia (~> 2.0)
   pg
   pry
   puma

app/models/post.rb

@@ -3,13 +3,15 @@ class Post < ActiveRecord::Base
   has_many :comments, as: :commentable
   has_many :likes, as: :likable
   has_many :favorites, as: :favoritable
-  has_many :share_instances, as: :sharable
+  has_many :share_instances, as: :sharable, dependent: :destroy
   has_many :timeline_sources
 
   has_one :thumbnail
 
   validates_presence_of :url, :type
 
+  acts_as_paranoid
+
   # default_scope  { order(:created_at => :desc) }
 
   def first_sharer

app/models/share_instance.rb

@@ -4,4 +4,6 @@ class ShareInstance < ActiveRecord::Base
   belongs_to :user
 
   delegate :name, to: :user, prefix: true
+
+  acts_as_paranoid
 end

app/models/user.rb

@@ -21,6 +21,7 @@ class User < ActiveRecord::Base
   has_one :avatar
   has_one :identity
 
+  acts_as_paranoid
 
   def followers
     user_ids = FollowRelation.where(star_id: self.id).pluck(:user_id)

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20151110094635) do
+ActiveRecord::Schema.define(version: 20151123161926) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -144,8 +144,11 @@ ActiveRecord::Schema.define(version: 20151110094635) do
     t.integer  "comments_count",  default: 0
     t.string   "summary"
     t.integer  "bookmarks_count", default: 0
+    t.datetime "deleted_at"
   end
 
+  add_index "posts", ["deleted_at"], name: "index_posts_on_deleted_at", using: :btree
+
   create_table "share_instances", force: :cascade do |t|
     t.integer  "user_id"
     t.integer  "sharable_id"
@@ -153,8 +156,11 @@ ActiveRecord::Schema.define(version: 20151110094635) do
     t.datetime "created_at",    null: false
     t.datetime "updated_at",    null: false
     t.string   "description"
+    t.datetime "deleted_at"
   end
 
+  add_index "share_instances", ["deleted_at"], name: "index_share_instances_on_deleted_at", using: :btree
+
   create_table "thumbnails", force: :cascade do |t|
     t.datetime "created_at",        null: false
     t.datetime "updated_at",        null: false
@@ -190,8 +196,10 @@ ActiveRecord::Schema.define(version: 20151110094635) do
     t.datetime "last_sign_in_at"
     t.inet     "current_sign_in_ip"
     t.inet     "last_sign_in_ip"
+    t.datetime "deleted_at"
   end
 
+  add_index "users", ["deleted_at"], name: "index_users_on_deleted_at", using: :btree
   add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
   add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
 

db/seeds.rb

@@ -5,3 +5,4 @@
 #
 #   cities = City.create([{ name: 'Chicago' }, { name: 'Copenhagen' }])
 #   Mayor.create(name: 'Emanuel', city: cities.first)
+AdminUser.create!(email: 'admin@librme.com', password: 'password1', password_confirmation: 'password1')