Remove alert_type attribute from BroadcastMessage

app/controllers/admin/broadcast_messages_controller.rb

@@ -31,9 +31,12 @@ class Admin::BroadcastMessagesController < Admin::ApplicationController
   end
 
   def broadcast_message_params
-    params.require(:broadcast_message).permit(
-      :alert_type, :color, :ends_at, :font,
-      :message, :starts_at
-    )
+    params.require(:broadcast_message).permit(%i(
+      color
+      ends_at
+      font
+      message
+      starts_at
+    ))
   end
 end

app/models/broadcast_message.rb

@@ -6,7 +6,6 @@
 #  message    :text             not null
 #  starts_at  :datetime
 #  ends_at    :datetime
-#  alert_type :integer
 #  created_at :datetime
 #  updated_at :datetime
 #  color      :string(255)

db/migrate/20151231202530_remove_alert_type_from_broadcast_messages.rb

@@ -0,0 +1,5 @@
+class RemoveAlertTypeFromBroadcastMessages < ActiveRecord::Migration
+  def change
+    remove_column :broadcast_messages, :alert_type, :integer
+  end
+end

db/schema.rb

@@ -82,7 +82,6 @@ ActiveRecord::Schema.define(version: 20160113111034) do
     t.text     "message",    null: false
     t.datetime "starts_at"
     t.datetime "ends_at"
-    t.integer  "alert_type"
     t.datetime "created_at"
     t.datetime "updated_at"
     t.string   "color"

spec/models/broadcast_message_spec.rb

@@ -6,7 +6,6 @@
 #  message    :text             not null
 #  starts_at  :datetime
 #  ends_at    :datetime
-#  alert_type :integer
 #  created_at :datetime
 #  updated_at :datetime
 #  color      :string(255)