Use configured repo

Author: crbelaus

lib/error_tracker/application.ex

@@ -2,7 +2,7 @@ defmodule ErrorTracker.Application do
   use Application
 
   def start(_type, _args) do
-    children = [ErrorTracker.Repo]
+    children = []
 
     Supervisor.start_link(children, strategy: :one_for_one, name: __MODULE__)
   end

lib/error_tracker/repo.ex

@@ -1,5 +1,7 @@
 defmodule ErrorTracker.Repo do
-  use Ecto.Repo,
-    otp_app: :error_tracker,
-    adapter: Ecto.Adapters.Postgres
+  def insert!(struct_or_changeset, opts \\ []) do
+    repo = Application.get_env(:error_tracker, :repo)
+
+    repo.insert!(struct_or_changeset, opts)
+  end
 end