Some stuff

lib/wish_web/live/item_live/show.ex

@@ -10,12 +10,60 @@ defmodule WishWeb.ItemLive.Show do
 
   @impl true
   def handle_params(%{"id" => id}, _, socket) do
+    item = Wishlist.get_item!(id)
+    changeset = Wishlist.change_item(item)
+
     {:noreply,
      socket
      |> assign(:page_title, page_title(socket.assigns.live_action))
-     |> assign(:item, Wishlist.get_item!(id))}
+     |> assign(:item, item)
+     |> assign_form(changeset)}
   end
 
   defp page_title(:show), do: "Show Item"
   defp page_title(:edit), do: "Edit Item"
+
+  @impl true
+  def handle_event("validate", %{"item" => item_params}, socket) do
+    changeset =
+      socket.assigns.item
+      |> Wishlist.change_item(item_params)
+      |> Map.put(:action, :validate)
+
+    {:noreply, assign_form(socket, changeset)}
+  end
+
+  def handle_event("save", %{"item" => item_params}, socket) do
+    save_item(socket, socket.assigns.live_action, item_params)
+  end
+
+  defp save_item(socket, :edit, item_params) do
+    case Wishlist.update_item(socket.assigns.item, item_params) do
+      {:ok, item} ->
+        {:noreply,
+         socket
+         |> assign(:item, item)
+         |> put_flash(:info, "Item updated successfully")}
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        {:noreply, assign_form(socket, changeset)}
+    end
+  end
+
+  defp save_item(socket, :new, item_params) do
+    case Wishlist.create_item(item_params) do
+      {:ok, item} ->
+        {:noreply,
+         socket
+         |> assign(:item, item)
+         |> put_flash(:info, "Item created successfully")}
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        {:noreply, assign_form(socket, changeset)}
+    end
+  end
+
+  defp assign_form(socket, %Ecto.Changeset{} = changeset) do
+    assign(socket, :form, to_form(changeset))
+  end
 end