add shops context, clothes and users-clothes

users-clothes is a many-to-many unique relationship

lib/pokemon_couture/shops/clothes.ex

@@ -0,0 +1,20 @@
+defmodule PokemonCouture.Shops.Clothes do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  schema "clothes" do
+    field :game, :string
+    field :location, :string
+    field :name, :string
+    many_to_many :users, PokemonCouture.Accounts.User, join_through: "ownerships", unique: :true
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(clothes, attrs) do
+    clothes
+    |> cast(attrs, [:name, :location, :game])
+    |> validate_required([:name, :location, :game])
+  end
+end