// SAVE BANNER IN EMPLOYER MODEL
    public function saveBanner($data) {
        if(isset($data['banner'])) {
            $banner = $data['banner'];
            if(isset($this->banner) && Storage::disk('public')->exists($this->banner)) {
                Storage::disk('public')->delete($this->banner);
            }
            $path = Storage::disk('public')->put('banners', $banner);
            $this->banner = $path;
        }
    }

// UPDATE CONTROLLER

    public function update(UpdateEmployerRequest $request) {
        $data = $request->validated();
        $user = getEmployer()->user;
        $employer = getEmployer();
        if(app('hash')->check($request->password, $user->password) === true || auth()->user()->isEmployee()) {
            $employer->saveLogo($data);
            $employer->saveBanner($data);
            $employer->fill($data);
            $employer->save();
            return redirect()->route('employers.edit');
        } else {
            $errors = new \Illuminate\Support\MessageBag();
            $errors->add('password',  __('validation.custom.password_update'));
            return redirect()->route('employers.edit')->withErrors($errors);
        }

    }

// RULES


<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use App\Rules\PhoneNumber;

class UpdateEmployerRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return array_merge([
            'name' => 'required|min:3',
            'description' => 'nullable|min:3',
            'color' => 'nullable|regex:/#[a-fA-F0-9]{6}/',
            'logo' => 'nullable|file|image|max:10000|dimensions:max_height=500,max_width=500',
            'banner' => 'nullable|file|image|max:10000',
            'contact_firstname' => 'required|min:2',
            'contact_lastname' => 'required|min:2',
            'contact_firstname' => 'required|min:2',
            'contact_lastname' => 'required|min:2',
            'civic' => 'required|string',
            'city' => 'required|string',
            'enterprise_number' => 'required|string',
            'revenue' => 'required|numeric',
            'hiring_volume' => 'required|numeric',
            'phone_number' => ['required', new PhoneNumber()],
            'contact_phone_number' => ['required', new PhoneNumber()],
        ]);
    }
}