Feature/update confirmation email information (#145)

* Add `invited_by` foreign key to User

Allows for a User to be tied to the user who invited them

* Include `current_user` in new agent initialization parameters

* Add `shoulda-matchers` for testing associations

* Add Inviter information and associated account to welcome email

* Only show inviter info if applicable

* Update conversation spec for FFaker compatibility

app/controllers/api/v1/agents_controller.rb

@@ -42,11 +42,11 @@ class Api::V1::AgentsController < Api::BaseController
 
   def new_agent_params
     time = Time.now.to_i
-    params.require(:agent).permit(:email, :name, :role).merge!(password: time, password_confirmation: time)
+    params.require(:agent).permit(:email, :name, :role)
+      .merge!(password: time, password_confirmation: time, inviter: current_user)
   end
 
   def agents
     @agents ||= current_account.users
   end
-
 end

app/models/user.rb

@@ -3,8 +3,13 @@ class User < ApplicationRecord
   include DeviseTokenAuth::Concerns::User
   include Events::Types
 
-  devise :database_authenticatable, :registerable,
-         :recoverable, :rememberable, :trackable, :validatable, :confirmable
+  devise :database_authenticatable, 
+    :registerable,
+    :recoverable, 
+    :rememberable, 
+    :trackable, 
+    :validatable, 
+    :confirmable
 
   validates_uniqueness_of :email, scope: :account_id
   validates :email, presence: true
@@ -14,6 +19,7 @@ class User < ApplicationRecord
   enum role: [ :agent, :administrator ]
 
   belongs_to :account
+  belongs_to :inviter, class_name: 'User', required: false
 
   has_many :assigned_conversations, foreign_key: "assignee_id", class_name: "Conversation", dependent: :nullify
   has_many :inbox_members, dependent: :destroy

app/views/devise/mailer/confirmation_instructions.html.erb

@@ -1,4 +1,8 @@
-<p>Welcome <%= @email %>!</p>
+<p>Welcome, <%= @resource.name %>!</p>
+
+<% if @resource.inviter.present? %>
+  <p><%= @resource.inviter.name %>, with <%= @resource.inviter.account.name %>, has invited you to try out Chatwoot! </p>
+<% end %>
 
 <p>You can confirm your account email through the link below:</p>