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codelgniter 4 from validation

#1
Hello guys am stuck tying to learn this ci4 validations

this is my view code
PHP Code:
<?= form_open('main/get_post'?>

<h5>Username</h5>
<input type="text" name="username" value="<?= old('username'?>" size="50" />


<div><input type="submit" value="Submit" /></div>

<?= form_close(); ?>


here my controller
PHP Code:
public function get_post()
    {
        $validation =  \Config\Services::validation();

        $validation->setRules([
            'username' => ['label' => 'Username''rules' => 'required'],
            'password' => ['label' => 'Password''rules' => 'required|min_length[10]']
        ]);

        $errors $validation->getErrors();

        foreach($errors as $error)
        {
            echo $error;
        }
    


i really do no know how to check errors i follow d docs i can get it
onlike ci4 we use if($this->form_validation == false;

here i am deeply confuse.
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#2
(11-04-2019, 11:03 AM)seunex Wrote: Hello guys am stuck tying to learn this ci4 validations

this is my view code
PHP Code:
<?= form_open('main/get_post'?>

<h5>Username</h5>
<input type="text" name="username" value="<?= old('username'?>" size="50" />


<div><input type="submit" value="Submit" /></div>

<?= form_close(); ?>


here my controller
PHP Code:
public function get_post()
    {
        $validation =  \Config\Services::validation();

        $validation->setRules([
            'username' => ['label' => 'Username''rules' => 'required'],
            'password' => ['label' => 'Password''rules' => 'required|min_length[10]']
        ]);

        $errors $validation->getErrors();

        foreach($errors as $error)
        {
            echo $error;
        }
    


i really do no know how to check errors i follow d docs i can get it
onlike ci4 we use if($this->form_validation == false;

here i am deeply confuse.

I dont see a password field in your form. That may be something to resolve. 

Also the getErrors() method returns key=> value pairs. Try echo $errors['username'];

Also, normally you display error messages on the form itself , so.....

if(!$validation->withRequest($this->request)->run()){
   echo view('myformviewpage');
  }else{
$model->save(...);
}

then in the formview try

<?= \Config\Services::validation()->listErrors(); ?>
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