ejaculated_dateの重複エラーをcatch

app/Services/CheckinCsvImporter.php

@@ -8,9 +8,11 @@ use App\Rules\CsvDateTime;
 use App\Tag;
 use App\User;
 use Carbon\Carbon;
+use Illuminate\Database\QueryException;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Validator;
 use League\Csv\Reader;
+use Throwable;
 
 class CheckinCsvImporter
 {
@@ -78,10 +80,24 @@ class CheckinCsvImporter
                     continue;
                 }
 
+                DB::beginTransaction();
+                try {
                     $ejaculation->save();
                     if (!empty($tags)) {
                         $ejaculation->tags()->sync(collect($tags)->pluck('id'));
                     }
+                    DB::commit();
+                } catch (QueryException $e) {
+                    DB::rollBack();
+                    if ($e->errorInfo[0] === '23505') {
+                        $errors[] = "{$line} 行 : すでにこの日時のチェックインデータが存在します。";
+                        continue;
+                    }
+                    throw $e;
+                } catch (Throwable $e) {
+                    DB::rollBack();
+                    throw $e;
+                }
             }
 
             if (!empty($errors)) {

tests/Unit/Services/CheckinCsvImporterTest.php

@@ -265,4 +265,19 @@ class CheckinCsvImporterTest extends TestCase
         $this->assertSame(1, $user->ejaculations()->count());
         $this->assertEquals(Ejaculation::SOURCE_CSV, $ejaculation->source);
     }
+
+    public function testDontThrowUniqueKeyViolation()
+    {
+        $user = factory(User::class)->create();
+        factory(Ejaculation::class)->create([
+            'user_id' => $user->id,
+            'ejaculated_date' => Carbon::create(2020, 1, 23, 6, 1, 0, 'Asia/Tokyo')
+        ]);
+
+        $this->expectException(CsvImportException::class);
+        $this->expectExceptionMessage('2 行 : すでにこの日時のチェックインデータが存在します。');
+
+        $importer = new CheckinCsvImporter($user, __DIR__ . '/../../fixture/Csv/date.utf8.csv');
+        $importer->execute();
+    }
 }