Fix warnings

Author: mathieuprog

test/support/migrations/20000101000000_create_tables.exs

@@ -2,9 +2,15 @@ defmodule PolymorphicEmbed.CreateTables do
   use Ecto.Migration
 
   def change do
+    create table(:events) do
+      add(:embedded_reminders, :map)
+      timestamps()
+    end
+
     create table(:reminders) do
       add(:date, :utc_datetime, null: false)
       add(:text, :text, null: false)
+      add(:event_id, references(:events))
 
       add(:channel, :map)
       add(:channel2, :map)
@@ -15,5 +21,10 @@ defmodule PolymorphicEmbed.CreateTables do
 
       timestamps()
     end
+
+    create table(:todos) do
+      add(:reminder_id, references(:reminders), null: false)
+      add(:embedded_reminder, :map)
+    end
   end
 end

test/support/models/not_polymorphic/reminder.ex

@@ -2,10 +2,13 @@ defmodule PolymorphicEmbed.Regular.Reminder do
   use Ecto.Schema
   use QueryBuilder
   import Ecto.Changeset
+  alias PolymorphicEmbed.Regular.{Todo, Event}
 
   schema "reminders" do
     field(:date, :utc_datetime)
     field(:text, :string)
+    has_one(:todo, Todo)
+    belongs_to(:event, Event)
 
     embeds_one(:channel, PolymorphicEmbed.Regular.Channel.SMS, on_replace: :update)
 

test/support/models/polymorphic/reminder.ex

@@ -3,10 +3,13 @@ defmodule PolymorphicEmbed.Reminder do
   use QueryBuilder
   import Ecto.Changeset
   import PolymorphicEmbed
+  alias PolymorphicEmbed.{Todo, Event}
 
   schema "reminders" do
     field(:date, :utc_datetime)
     field(:text, :string)
+    has_one(:todo, Todo)
+    belongs_to(:event, Event)
 
     polymorphic_embeds_one(:channel,
       types: [