Enhancement: Move reporting metrics to postgres (#606)

db/migrate/20200121190900_add_notification_settings.rb

@@ -1,5 +1,7 @@
 class AddNotificationSettings < ActiveRecord::Migration[6.0]
   def change
+    return if ActiveRecord::Base.connection.data_source_exists? 'notification_settings'
+
     create_table :notification_settings do |t|
       t.integer :account_id
       t.integer :user_id

db/migrate/20200310062527_create_events.rb

@@ -0,0 +1,14 @@
+class CreateEvents < ActiveRecord::Migration[6.0]
+  def change
+    create_table :events do |t|
+      t.string :name
+      t.float :value
+      t.integer :account_id
+      t.integer :inbox_id
+      t.integer :user_id
+      t.integer :conversation_id
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20200310070540_add_index_to_event.rb

@@ -0,0 +1,9 @@
+class AddIndexToEvent < ActiveRecord::Migration[6.0]
+  def change
+    add_index :events, :name
+    add_index :events, :created_at
+    add_index :events, :account_id
+    add_index :events, :inbox_id
+    add_index :events, :user_id
+  end
+end

db/migrate/20200311083854_add_index_to_message.rb

@@ -0,0 +1,7 @@
+class AddIndexToMessage < ActiveRecord::Migration[6.0]
+  def change
+    add_index :messages, :account_id
+    add_index :messages, :inbox_id
+    add_index :messages, :user_id
+  end
+end