invoiceninja/app/Http/Requests/Task/StoreTaskRequest.php

<?php
/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2022. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://www.elastic.co/licensing/elastic-license
 */

namespace App\Http\Requests\Task;

use App\Http\Requests\Request;
use App\Models\Project;
use App\Models\Task;
use App\Utils\Traits\MakesHash;
use Illuminate\Validation\Rule;

class StoreTaskRequest extends Request
{
    use MakesHash;

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize() : bool
    {
        return auth()->user()->can('create', Task::class);
    }

    public function rules()
    {
        $rules = [];

        if (isset($this->number)) {
            $rules['number'] = Rule::unique('tasks')->where('company_id', auth()->user()->company()->id);
        }

        if(isset($this->client_id))
            $rules['client_id'] = 'bail|required|exists:clients,id,company_id,'.auth()->user()->company()->id.',is_deleted,0';

        if(isset($this->project_id))
            $rules['project_id'] = 'bail|required|exists:projects,id,company_id,'.auth()->user()->company()->id.',is_deleted,0';

        $rules['timelog'] = ['bail','array',function ($attribute, $values, $fail) {

            foreach($values as $k)
            {
                if(!is_int($k[0]) || !is_int($k[1]))
                    $fail('The '.$attribute.' - '.print_r($k,1).' is invalid. Unix timestamps only.');
            }

        }];


        return $this->globalRules($rules);
    }

    public function prepareForValidation()
    {
        $input = $this->all();
        $input = $this->decodePrimaryKeys($this->all());

        if (array_key_exists('status_id', $input) && is_string($input['status_id'])) {
            $input['status_id'] = $this->decodePrimaryKey($input['status_id']);
        }

        /* Ensure the project is related */
        if (array_key_exists('project_id', $input) && isset($input['project_id'])) {
            $project = Project::withTrashed()->where('id', $input['project_id'])->company()->first();
;
            if($project){
                $input['client_id'] = $project->client_id;
            }
            else
            {
                unset($input['project_id']);
            }

        }

        $this->replace($input);
    }
}