requests // $asset->isRequestedBy($user) // $asset->whereRequestedBy($user) trait Requestable { public function requests() { return $this->morphMany(CheckoutRequest::class, 'requestable'); } public function isRequestedBy(User $user) { return $this->requests->where('canceled_at', null)->where('user_id', $user->id)->first(); } public function scopeRequestedBy($query, User $user) { return $query->whereHas('requests', function ($query) use ($user) { $query->where('user_id', $user->id); }); } public function request($qty = 1) { $this->requests()->save( new CheckoutRequest(['user_id' => auth()->id(), 'qty' => $qty]) ); } public function deleteRequest() { $this->requests()->where('user_id', auth()->id())->delete(); } public function cancelRequest($user_id = null) { if (!$user_id){ $user_id = auth()->id(); } $this->requests()->where('user_id', $user_id)->update(['canceled_at' => \Carbon\Carbon::now()]); } }