app/Livewire/Activity.php

@@ -4,9 +4,12 @@
 
 use App\Enums\ActivityTypeEnum;
 use App\Models\ActivityLog;
+use App\Models\Article;
 use App\Services\Activity\ActivitySummary;
 use Illuminate\Contracts\View\View;
 use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Relations\MorphTo;
+use Illuminate\Database\Eloquent\Relations\Relation;
 use Livewire\Component;
 use Livewire\WithPagination;
 
@@ -34,7 +37,11 @@ public function updatedDays(): void
     private function query(): Builder
     {
         return ActivityLog::query()
-            ->with('subject')
+            ->with(['subject' => function (Relation $morphTo): void {
+                if ($morphTo instanceof MorphTo) {
+                    $morphTo->morphWith([Article::class => ['feed']]);
+                }
+            }])
             ->since(now()->subDays($this->days))
             ->when(
                 $this->type !== '',

database/factories/ActivityLogFactory.php

@@ -40,7 +40,7 @@ public function loggedAt(Carbon $loggedAt): static
         return $this->state(['logged_at' => $loggedAt]);
     }
 
-    public function for_subject(Model $subject): static
+    public function forSubject(Model $subject): static
     {
         return $this->state([
             'subject_type' => $subject->getMorphClass(),

resources/views/livewire/activity.blade.php

@@ -44,6 +44,9 @@ class="w-44 shrink-0 pl-3 pr-10 py-2 border border-gray-300 rounded-md text-sm f
 
                 <div class="min-w-0 flex-1">
                     <p class="text-sm text-gray-900 dark:text-gray-100">{{ $entry->message }}</p>
+                    @if ($entry->subject instanceof App\Models\Article)
+                        <p class="mt-0.5 text-xs text-gray-500 dark:text-gray-400">{{ $entry->subject->feed?->name }}</p>
+                    @endif
                     @if (($entry->context['reason'] ?? null) !== null)
                         <p class="mt-0.5 text-xs text-gray-500 dark:text-gray-400">{{ $entry->context['reason'] }}</p>
                     @endif

tests/Feature/Livewire/ActivityTest.php

@@ -6,7 +6,9 @@
 use App\Livewire\Activity;
 use App\Models\ActivityLog;
 use App\Models\Article;
+use App\Models\Feed;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\DB;
 use Livewire\Livewire;
 use Tests\TestCase;
 
@@ -70,7 +72,7 @@ public function test_entry_without_a_subject_renders(): void
     public function test_entry_with_a_deleted_subject_renders(): void
     {
         $article = Article::factory()->create();
-        ActivityLog::factory()->for_subject($article)->create(['message' => 'Dangling subject']);
+        ActivityLog::factory()->forSubject($article)->create(['message' => 'Dangling subject']);
         $article->delete();
 
         Livewire::test(Activity::class)
@@ -83,6 +85,32 @@ public function test_empty_state_is_shown_when_there_is_no_activity(): void
         Livewire::test(Activity::class)->assertSee('No activity in this period.');
     }
 
+    public function test_an_article_subject_shows_its_feed_name(): void
+    {
+        $feed = Feed::factory()->create(['name' => 'VRT News']);
+        $article = Article::factory()->create(['feed_id' => $feed->id]);
+        ActivityLog::factory()->forSubject($article)->create(['message' => 'Published something']);
+
+        Livewire::test(Activity::class)->assertSee('VRT News');
+    }
+
+    public function test_subjects_are_eager_loaded(): void
+    {
+        $feed = Feed::factory()->create();
+
+        foreach (range(1, 5) as $i) {
+            $article = Article::factory()->create(['feed_id' => $feed->id]);
+            ActivityLog::factory()->forSubject($article)->create();
+        }
+
+        DB::enableQueryLog();
+        Livewire::test(Activity::class);
+        $queries = count(DB::getQueryLog());
+        DB::disableQueryLog();
+
+        $this->assertLessThan(10, $queries);
+    }
+
     public function test_a_reason_in_context_is_shown_under_the_message(): void
     {
         ActivityLog::factory()->create([

tests/Unit/Models/ActivityLogTest.php

@@ -58,7 +58,7 @@ public function test_latest_first_breaks_ties_on_id(): void
     public function test_subject_resolves_to_the_related_model(): void
     {
         $article = Article::factory()->create();
-        $log = ActivityLog::factory()->for_subject($article)->create();
+        $log = ActivityLog::factory()->forSubject($article)->create();
 
         $this->assertInstanceOf(Article::class, $log->subject);
         $this->assertSame($article->id, $log->subject->id);