Show Flights with Pilot Names

lib/acm_uc_demo/airplanes.ex

@@ -37,6 +37,26 @@ defmodule AcmUcDemo.Airplanes do
   """
   def get_airplane!(id), do: Repo.get!(Airplane, id)
 
+  @doc """
+  Gets a single airplane with flights preloaded (including pilot information).
+
+  Raises `Ecto.NoResultsError` if the Airplane does not exist.
+
+  ## Examples
+
+      iex> get_airplane_with_flights!(123)
+      %Airplane{flights: [%Flight{pilot: %Pilot{}}, ...]}
+
+      iex> get_airplane_with_flights!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_airplane_with_flights!(id) do
+    Airplane
+    |> Repo.get!(id)
+    |> Repo.preload(flights: :pilot)
+  end
+
   @doc """
   Creates a airplane.
 

lib/acm_uc_demo/airplanes/airplane.ex

@@ -8,6 +8,8 @@ defmodule AcmUcDemo.Airplanes.Airplane do
     field :tail_number, :string
     field :initial_hours, :decimal
 
+    has_many :flights, AcmUcDemo.Flights.Flight
+
     timestamps(type: :utc_datetime)
   end
 

lib/acm_uc_demo/flights/flight.ex

@@ -5,8 +5,9 @@ defmodule AcmUcDemo.Flights.Flight do
   schema "flights" do
     field :hobbs_reading, :decimal
     field :notes, :string
-    field :pilot_id, :id
-    field :airplane_id, :id
+
+    belongs_to :pilot, AcmUcDemo.Pilots.Pilot
+    belongs_to :airplane, AcmUcDemo.Airplanes.Airplane
 
     timestamps(type: :utc_datetime)
   end

lib/acm_uc_demo_web/live/airplane_live/show.ex

@@ -26,6 +26,28 @@ defmodule AcmUcDemoWeb.AirplaneLive.Show do
         <:item title="Tail number">{@airplane.tail_number}</:item>
         <:item title="Initial hours">{@airplane.initial_hours}</:item>
       </.list>
+
+      <div class="mt-8">
+        <.header>
+          Flights
+          <:subtitle>Flight history for this airplane</:subtitle>
+        </.header>
+
+        <div class="mt-4">
+          <%= if @airplane.flights == [] do %>
+            <div class="text-gray-500 text-sm">No flights recorded yet.</div>
+          <% else %>
+            <.table id="flights-table" rows={@airplane.flights}>
+              <:col :let={flight} label="Pilot">{flight.pilot.name}</:col>
+              <:col :let={flight} label="Hobbs Reading">{flight.hobbs_reading}</:col>
+              <:col :let={flight} label="Notes">{flight.notes}</:col>
+              <:col :let={flight} label="Date">
+                {Calendar.strftime(flight.inserted_at, "%b %d, %Y %I:%M %p")}
+              </:col>
+            </.table>
+          <% end %>
+        </div>
+      </div>
     </Layouts.app>
     """
   end
@@ -35,6 +57,6 @@ defmodule AcmUcDemoWeb.AirplaneLive.Show do
     {:ok,
      socket
      |> assign(:page_title, "Show Airplane")
-     |> assign(:airplane, Airplanes.get_airplane!(id))}
+     |> assign(:airplane, Airplanes.get_airplane_with_flights!(id))}
   end
 end