Change models, new migrations, fix front and make tests work

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/eventos_web/views/member_view.ex

@@ -0,0 +1,17 @@
+defmodule EventosWeb.MemberView do
+  use EventosWeb, :view
+  alias EventosWeb.MemberView
+
+  def render("index.json", %{members: members}) do
+    %{data: render_many(members, MemberView, "member.json")}
+  end
+
+  def render("show.json", %{member: member}) do
+    %{data: render_one(member, MemberView, "member.json")}
+  end
+
+  def render("member.json", %{member: member}) do
+    %{id: member.id,
+      role: member.role}
+  end
+end