Validation in Redbean PHP

Question

I like the idea of ​​using FUSE models for validation in RedbeanPHP.

My applications sometimes need to receive data through several sources (form, file, etc.), so the point of checking the actual update of the class makes sense.

When looking at the examples on the Redbean website, the check seems to be based on the exception being thrown.

Of course, you can only throw one exception, so I assume that I need to create an additional property of type "array" in my FUSE class to store validation messages associated with individual fields.

Does anyone have any better ideas? Here is what I have tried so far ...

<form action="" method="post">
    <p>your name: <input name="name" type="text"></p>

    <p>your email: <input name="email" type="text"></p>

    <p>your message:</p>
    <textarea name="message" id="" cols="30" rows="10"></textarea>
    <input name="send" value="send message" type="submit">
</form>

<?php

/**
 * @property $name string
 * @property $email string
 * @property $message string
 */
class Model_Comment extends RedBean_SimpleModel{
    public $invalid = array();
    public function update(){
        if(empty($this->name)) $this->invalid['name'] = "field is empty";
        if(empty($this->email)) $this->invalid['email'] = "field is empty";
        if(empty($this->message)) $this->invalid['message'] = "field is empty";
        if(count($this->invalid) > 0) throw new Exception('Validation Failed!');
    }
    public function getInvalid(){
        return $this->invalid;
    }
}

if(isset($_POST['send'])){

    $comment = R::dispense('comment');
    /* @var $comment Model_Comment */
    $comment->import($_POST,'name,email,message');

    try{
        R::store($comment);
    }
    catch(Exception $e){
        echo $e->getMessage();
        $invalid = $comment->getInvalid();
        print_r($invalid);
        exit;
    }
    echo '<p>thank you for leaving a message.</p>';
}
echo "<h2>What people said!</h2>";

$comments = R::find('comment');
/* @var $comments Model_Comment[] */

foreach($comments as $comment){
    echo "<p>{$comment->name}: {$comment->message}</p>";
}

?>

Answer 1

RedBean_SimpleModel, , . . ( ):

class RedBean_MyCustomModel extends RedBean_SimpleModel {
  private $errors = array();
  public function error($field, $text) {
    $this->errors[$field] = $text;
  }
  public function getErrors() {
    return $this->errors;
  }
  public function update() {
    $this->errors = array(); // reset the errors array
    R::begin(); // begin transaction before the update
  }
  public function after_update() {
    if (count($this->errors) > 0) {
      R::rollback();
      throw new Exception('Validation failed');
    }
  }
}

:

class Model_Comment extends RedBean_MyCustomModel {
    public function update(){
        parent::update();
        if(empty($this->name)) $this->error('name', 'field is empty');
        if(empty($this->email)) $this->error('name', 'field is empty');
        if(empty($this->message)) $this->error('name', 'field is empty');
    }
    public function getInvalid(){
        return $this->invalid;
    }
}