php - Joomla 3自定义服务器端表单验证规则

Question

我是 joomla 组件开发(J3、MVC)的新手，我正在尝试创建自定义服务器端表单验证规则。

我将 validate="machinename" 添加到我的表单字段并创建了一个文件 models\rules\machinename.php

defined('_JEXEC') or die('Restricted access');

jimport('joomla.form.formrule');

class JFormRuleMachinename extends JFormRule
{
    protected $regex = '/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/';
}

我在 controllers\field.php 中有一个空 Controller

defined('_JEXEC') or die('Restricted access');

// import Joomla controllerform library
jimport('joomla.application.component.controllerform');

class SampleControllerField extends JControllerForm
{

}

模型位于 models\field.php

defined('_JEXEC') or die('Restricted access');

// import Joomla modelform library
jimport('joomla.application.component.modeladmin');

/**
 * HelloWorld Model
 */
class SampleModelField extends JModelAdmin
{
    public function getTable($type = 'Field', $prefix = 'SampleTable', $config = array())
    {
        return JTable::getInstance($type, $prefix, $config);
    }

    /**
     * Method to get the record form.
     *
     * @param       array $data Data for the form.
     * @param       boolean $loadData True if the form is to load its own data (default case), false if not.
     * @return      mixed   A JForm object on success, false on failure
     * @since       2.5
     */
    public function getForm($data = array(), $loadData = true)
    {
        // Get the form.
        $form = $this->loadForm('com_sample.field', 'field',
            array('control' => 'jform', 'load_data' => $loadData));
        if (empty($form))
        {
            return false;
        }
        return $form;
    }

    /**
     * Method to get the data that should be injected in the form.
     *
     * @return      mixed   The data for the form.
     * @since       2.5
     */
    protected function loadFormData()
    {
        // Check the session for previously entered form data.
        $data = JFactory::getApplication()->getUserState('com_sample.edit.field.data', array());
        if (empty($data))
        {
            $data = $this->getItem();
        }
        return $data;
    }
}

我的组件名称是com_sample，一切工作正常(新建、编辑、删除)，但后来我将验证规则添加到表单的字段中，现在提交表单时出现错误:

JForm::validateField() rule `machinename` missing. 

我最好的猜测是我的命名或文件位置有误，但我不确定并且无法通过谷歌找到任何内容。

所以请帮助我...

Answer 1

自己寻找解决方案，似乎需要将规则文件夹路径添加到表单定义中:

<form addrulepath="/administrator/components/com_sample/models/rules">

这解决了我的问题。