6.8 - Reserving Individual Tickets

app/Concert.php

@@ -56,6 +56,11 @@ class Concert extends Model
         return $this->createOrder($email, $tickets);
     }
 
+    public function reserveTickets($quantity)
+    {
+        return $this->findTickets($quantity);
+    }
+
     public function findTickets($quantity)
     {
         $tickets = $this->tickets()->available()->take($quantity)->get();

app/Ticket.php

@@ -2,6 +2,7 @@
 
 namespace App;
 
+use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Model;
 
 class Ticket extends Model
@@ -13,6 +14,11 @@ class Ticket extends Model
         return $query->whereNull('order_id');
     }
 
+    public function reserve()
+    {
+        $this->update(['reserved_at' => Carbon::now()]);
+    }
+
     public function release()
     {
         $this->update(['order_id' => null]);

database/factories/ModelFactory.php

@@ -51,3 +51,12 @@ $factory->state(App\Concert::class, 'unpublished', function ($faker) {
         'published_at' => null,
     ];
 });
+
+
+$factory->define(App\Ticket::class, function (Faker\Generator $faker) {
+    return [
+        'concert_id' => function () {
+            return factory(App\Concert::class)->create()->id;
+        },
+    ];
+});

database/migrations/2016_11_08_210440_create_tickets_table.php

@@ -17,6 +17,7 @@ class CreateTicketsTable extends Migration
             $table->increments('id');
             $table->unsignedInteger('concert_id');
             $table->unsignedInteger('order_id')->nullable();
+            $table->datetime('reserved_at')->nullable();
             $table->timestamps();
         });
     }

tests/unit/ConcertTest.php

@@ -117,4 +117,16 @@ class ConcertTest extends TestCase
 
         $this->fail("Order succeeded even though there were not enough tickets remaining.");
     }
+
+    /** @test */
+    function can_reserve_available_tickets()
+    {
+        $concert = factory(Concert::class)->create()->addTickets(3);
+        $this->assertEquals(3, $concert->ticketsRemaining());
+
+        $reservedTickets = $concert->reserveTickets(2);
+
+        $this->assertCount(2, $reservedTickets);
+        $this->assertEquals(1, $concert->ticketsRemaining());
+    }
 }

tests/unit/TicketTest.php

@@ -1,5 +1,6 @@
 <?php
 
+use App\Ticket;
 use App\Concert;
 use Illuminate\Foundation\Testing\WithoutMiddleware;
 use Illuminate\Foundation\Testing\DatabaseMigrations;
@@ -9,6 +10,17 @@ class TicketTest extends TestCase
 {
     use DatabaseMigrations;
 
+    /** @test */
+    function a_ticket_can_be_reserved()
+    {
+        $ticket = factory(Ticket::class)->create();
+        $this->assertNull($ticket->reserved_at);
+
+        $ticket->reserve();
+
+        $this->assertNotNull($ticket->fresh()->reserved_at);
+    }
+
     /** @test */
     function a_ticket_can_be_released()
     {