Why required rule not working in CodeIgniter

Question

When I add required rule the validation pass even in the post data not contain (name), but if I have other rules like (valid_email), the validation return false.

My Model:

namespace App\Models;
use CodeIgniter\Model;

class ProjectsMD extends Model
{

        protected $table                =   'projects';
        protected $primaryKey           =   'sid';
        protected $returnType           =   'App\Entities\Project';
        protected $allowedFields        =   ['name', 'description', 'location', 'area', 'client', 'stage'];
        protected $validationRules      =   [          
                                                'name'        =>      ['label' => 'App.name',         'rules'  =>  'required'],
                                            ];
        protected $useTimestamps        =   true;     
        
}

My Controller:

public function projectsCreate()
    {
        $projectsMD =   new \App\Models\ProjectsMD();
        
        if($projectsMD->validate($this->request->getPost()) === false)
        {
            return false;
        }
        
        return true;
    }

Answer 1

Have you inspected the request body $this->request->getPost() to confirm if the name value is not an empty array, empty string, null or false?

Available Rules

Rule	Parameter	Description
required	No	Fails if the field is an empty array, empty string, null or false.

Nonetheless, these validation rules should be sufficient.

required|string|min_length[3]|max_length[120]

You may add additional validation rules depending on your specific requirements.