Adding user settings (model and mailer), no form yet

Gemfile

@@ -38,6 +38,7 @@ gem 'simple_form'
 gem 'will_paginate'
 gem 'rack-attack'
 gem 'sidekiq'
+gem 'ledermann-rails-settings'
 
 gem 'react-rails'
 gem 'browserify-rails'

Gemfile.lock

@@ -145,6 +145,8 @@ GEM
     json (1.8.3)
     launchy (2.4.3)
       addressable (~> 2.3)
+    ledermann-rails-settings (2.4.2)
+      activerecord (>= 3.1)
     letter_opener (1.4.1)
       launchy (~> 2.2)
     libv8 (3.16.14.15)
@@ -364,6 +366,7 @@ DEPENDENCIES
   httplog
   jbuilder (~> 2.0)
   jquery-rails
+  ledermann-rails-settings
   letter_opener
   link_header
   lograge

app/mailers/notification_mailer.rb

@@ -1,11 +1,11 @@
 class NotificationMailer < ApplicationMailer
   helper StreamEntriesHelper
-  helper AtomBuilderHelper
 
   def mention(mentioned_account, status)
     @me     = mentioned_account
     @status = status
 
+    return unless @me.user.settings(:notification_emails).mention
     mail to: @me.user.email, subject: "You were mentioned by #{@status.account.acct}"
   end
 
@@ -13,6 +13,7 @@ class NotificationMailer < ApplicationMailer
     @me      = followed_account
     @account = follower
 
+    return unless @me.user.settings(:notification_emails).follow
     mail to: @me.user.email, subject: "#{@account.acct} is now following you"
   end
 
@@ -21,6 +22,7 @@ class NotificationMailer < ApplicationMailer
     @account = from_account
     @status  = target_status
 
+    return unless @me.user.settings(:notification_emails).favourite
     mail to: @me.user.email, subject: "#{@account.acct} favourited your status"
   end
 
@@ -29,6 +31,7 @@ class NotificationMailer < ApplicationMailer
     @account = from_account
     @status  = target_status
 
+    return unless @me.user.settings(:notification_emails).reblog
     mail to: @me.user.email, subject: "#{@account.acct} reblogged your status"
   end
 end

app/models/user.rb

@@ -9,4 +9,8 @@ class User < ApplicationRecord
   scope :prolific, -> { joins('inner join statuses on statuses.account_id = users.account_id').select('users.*, count(statuses.id) as statuses_count').group('users.id').order('statuses_count desc') }
   scope :recent,   -> { order('created_at desc') }
   scope :admins,   -> { where(admin: true) }
+
+  has_settings do |s|
+    s.key :notification_emails, defaults: { follow: true, reblog: true, favourite: true, mention: true }
+  end
 end

db/migrate/20161006213403_rails_settings_migration.rb

@@ -0,0 +1,21 @@
+MIGRATION_BASE_CLASS = if ActiveRecord::VERSION::MAJOR >= 5
+  ActiveRecord::Migration[5.0]
+else
+  ActiveRecord::Migration
+end
+
+class RailsSettingsMigration < MIGRATION_BASE_CLASS
+  def self.up
+    create_table :settings do |t|
+      t.string     :var,    :null => false
+      t.text       :value
+      t.references :target, :null => false, :polymorphic => true
+      t.timestamps :null => true
+    end
+    add_index :settings, [ :target_type, :target_id, :var ], :unique => true
+  end
+
+  def self.down
+    drop_table :settings
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20161003145426) do
+ActiveRecord::Schema.define(version: 20161006213403) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -126,6 +126,17 @@ ActiveRecord::Schema.define(version: 20161003145426) do
     t.index ["uid"], name: "index_oauth_applications_on_uid", unique: true, using: :btree
   end
 
+  create_table "settings", force: :cascade do |t|
+    t.string   "var",         null: false
+    t.text     "value"
+    t.string   "target_type", null: false
+    t.integer  "target_id",   null: false
+    t.datetime "created_at"
+    t.datetime "updated_at"
+    t.index ["target_type", "target_id", "var"], name: "index_settings_on_target_type_and_target_id_and_var", unique: true, using: :btree
+    t.index ["target_type", "target_id"], name: "index_settings_on_target_type_and_target_id", using: :btree
+  end
+
   create_table "statuses", force: :cascade do |t|
     t.string   "uri"
     t.integer  "account_id",                  null: false