タグ登録機能の追加

app/Ejaculation.php

@@ -22,4 +22,9 @@ class Ejaculation extends Model
     {
         return $this->belongsTo('App\User');
     }
+
+    public function tags()
+    {
+        return $this->belongsToMany('App\Tag')->withTimestamps();
+    }
 }