feat(exams): add editing exams

lib/exmr_web/live/exam_live/index.ex

@@ -10,6 +10,8 @@ defmodule ExmrWeb.ExamLive.Index do
       socket
       |> assign(:exams, Exams.list_exams())
       |> assign(:sort_by, "date")
+      |> assign(:live_action, :index)
+      |> assign(exam: %{})
 
     {:ok, socket}
   end
@@ -65,6 +67,16 @@ defmodule ExmrWeb.ExamLive.Index do
     {:noreply, assign(socket, exams: exams, sort_by: sort_by)}
   end
 
+  def handle_event("edit", %{"id" => id}, socket) do
+    exam = Exams.get_exam!(id)
+
+    socket =
+      socket
+      |> assign(live_action: :edit, exam: exam)
+
+    {:noreply, socket}
+  end
+
   defp sort_items(items, "subject") do
     Enum.sort_by(items, & &1.subject)
   end

lib/exmr_web/live/exam_live/index.html.heex

@@ -19,6 +19,13 @@
       <div class="font-bold"><%= exam.subject %></div>
       <div class="font-sm"><%= exam.date %></div>
     </div>
+    <button
+      phx-click="edit"
+      phx-value-id={exam.id}
+      class="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-3 rounded-md"
+    >
+      Edit
+    </button>
     <button
       phx-click="remove"
       phx-value-id={exam.id}