Add a function to get all user's links.

lib/link_shortener/links/links.ex

@@ -5,6 +5,7 @@ defmodule LinkShortener.Links do
   alias LinkShortener.Repo
   alias LinkShortener.Links.Link
   alias LinkShortener.Generators.LinkWithRandomShorten, as: LinkGenerator
+  alias LinkShortener.Accounts.User
 
   def new_one(), do: Link.changeset(%Link{}, %{})
 
@@ -49,6 +50,12 @@ defmodule LinkShortener.Links do
     |> Repo.all()
   end
 
+  def get_all_by_user(%User{id: user_id} = user) do
+    from(Link)
+    |> where([l], l.user_id == ^user_id)
+    |> Repo.all()
+  end
+
   def edit_one(%Link{} = link, attrs \\ %{}) do
     link
     |> Link.changeset(attrs)