将表单字段保存在组件参数joomla中

Question

我正在使用joomla 2.5，正在开发joomla的自定义组件。 我已经在后台管理页面中创建了表单。 我需要的是，我想将表单的发布数据保存在#_extensions数据库的该组件的params行中。 这是我的表/ component.php

<?php defined('_JEXEC') or die('Restricted access');

jimport（ 'joomla.database.table'）;

类componentTablecomponent扩展了JTable {

 function __construct(&$db) { parent::__construct('#__extensions', 'extension_id', $db); } public function bind($array, $ignore = '') { if (isset($array['params']) && is_array($array['params'])) { // Convert the params field to a string. $parameter = new JRegistry; $parameter->loadArray($array['params']); $array['params'] = (string)$parameter; } return parent::bind($array, $ignore); } public function load($pk = null, $reset = true) { if (parent::load($pk, $reset)) { // Convert the params field to a registry. $params = new JRegistry; $params->loadJSON($this->params); $this->params = $params; return true; } else { return false; } } public function store() { 

父::存储（NULL）;

}

}

而不是将$data保存在该组件的params行中。 这段代码正在该表中创建新的空行（数据保存在这些params字段中）。 这是我在controllers / component.php中的save()函数

公共功能save（）

 { // Check for request forgeries. JSession::checkToken() or jexit(JText::_('JINVALID_TOKEN')); // Check if the user is authorized to do this. if (!JFactory::getUser()->authorise('core.admin')) { `JFactory::getApplication()->redirect('index.php',JText::_('JERROR_ALERTNOAUTHOR'));` return; } // Initialise variables. $app = JFactory::getApplication(); $model = $this->getModel('component'); $form = $model->getForm(); $data = JRequest::getVar('jform', array(), 'post', 'array'); print_r($data); // Validate the posted data. $return = $model->validate($form, $data); // Check for validation errors. if ($return === false) { // Get the validation messages. $errors = $model->getErrors(); // Push up to three validation messages out to the user. for ($i = 0, $n = count($errors); $i < $n && $i < 3; $i++) { if ($errors[$i] instanceof Exception) { $app->enqueueMessage($errors[$i]->getMessage(), 'warning'); } else { $app->enqueueMessage($errors[$i], 'warning'); } } // Redirect back to the edit screen. $this->setRedirect(JRoute::_('somelink',false)); return false; } // Attempt to save the configuration. $data = $return; $return = $model->save($data); // Check the return value. if ($return === false) { // Save failed, go back to the screen and display a notice. $message = JText::sprintf('JERROR_SAVE_FAILED', $model->getError()); $this->setRedirect('index.php/somelink','error'); return false; } // Set the success message. $message = JText::_('COM_CONFIG_SAVE_SUCCESS'); // Set the redirect based on the task. switch ($this->getTask()) { case 'apply': $this->setRedirect('somelink',$message); break; case 'cancel': case 'save': default: $this->setRedirect('index.php', $message); break; } return true; } 

车型/ component.php

公共功能save（$ data）{

  parent::save($data); return true; 

}

我认为这些代码就足够了。 如果需要，我可以添加更多代码。

Answer 1

我想出了一个解决方案。 这个对我有用 。 通过使用此方法，您可以控制save（）函数，即可以在保存时运行自定义php脚本，应用工具栏按钮。

我从com_config组件复制了save（），save（$ data），store（$ updateNulls = false）函数，我已经从组件视图复制了布局。 删除了按钮。 在.html.php文件中添加了工具栏按钮。

控制器/ mycomponent.php

<?php


defined('_JEXEC') or die;



class componentControllermycomponent extends JControllerLegacy {




    function __construct($config = array())
    {
        parent::__construct($config);

        // Map the apply task to the save method.
        $this->registerTask('apply', 'save');
    }


    function save()
    {


        // Check for request forgeries.
        JSession::checkToken() or jexit(JText::_('JINVALID_TOKEN'));

        // Set FTP credentials, if given.
        JClientHelper::setCredentialsFromRequest('ftp');

        // Initialise variables.
        $app    = JFactory::getApplication();
        $model  = $this->getModel('mymodel');
        $form   = $model->getForm();
        $data   = JRequest::getVar('jform', array(), 'post', 'array');
        $id     = JRequest::getInt('id');
        $option = 'com_mycomponent';


        // Check if the user is authorized to do this.
        if (!JFactory::getUser()->authorise('core.admin', $option))
        {
            JFactory::getApplication()->redirect('index.php', JText::_('JERROR_ALERTNOAUTHOR'));
            return;
        }

        // Validate the posted data.
        $return = $model->validate($form, $data);

        // Check for validation errors.
        if ($return === false) {
            // Get the validation messages.
            $errors = $model->getErrors();

            // Push up to three validation messages out to the user.
            for ($i = 0, $n = count($errors); $i < $n && $i < 3; $i++) {
                if ($errors[$i] instanceof Exception) {
                    $app->enqueueMessage($errors[$i]->getMessage(), 'warning');
                } else {
                    $app->enqueueMessage($errors[$i], 'warning');
                }
            }

            // Save the data in the session.
            $app->setUserState('com_iflychat.config.global.data', $data);

            // Redirect back to the edit screen.
            $this->setRedirect(JRoute::_('index.php?option=com_mycomponent&view=component&component='.$option.'&tmpl=component', false));
            return false;
        }

        // Attempt to save the configuration.
        $data   = array(
            'params'    => $return,
            'id'        => $id,
            'option'    => $option
        );
       // print_r($data);
        $return = $model->save($data);

        // Check the return value.
        if ($return === false)
        {
            // Save the data in the session.
            $app->setUserState('com_config.config.global.data', $data);

            // Save failed, go back to the screen and display a notice.
            $message = JText::sprintf('JERROR_SAVE_FAILED', $model->getError());
            $this->setRedirect('index.php?option=com_mycomponent&view=component&component='.$option.'&tmpl=component', $message, 'error');
            return false;
        }

        // Set the redirect based on the task.
        switch ($this->getTask())
        {
            case 'apply':
                $message = JText::_('COM_MYCOMPONENT_SAVE_SUCCESS');
print_r($data);
                $this->setRedirect('index.php?option=com_mycomponent&view=myview&layout=edit', $message);
                break;

            case 'save':
            default:
                $this->setRedirect('index.php');
                break;
        }

        return true;
    }





    function cancel()
    {
        $this->setRedirect('index.php');
    }



}

车型/ mymodel.php

<?php


defined('_JEXEC') or die;

jimport('joomla.application.component.modelform');


class componentModelmymodel extends JModelForm  {


    protected $event_before_save = 'onConfigurationBeforeSave';

    protected $event_after_save = 'onConfigurationAfterSave';


    public function getForm($data = array(), $loadData = true){
        // Get the form.
        $form = $this->loadForm('com_mycomponent.form', 'config',
            array('control' => 'jform', 'load_data' => $loadData));

        if (empty($form)){
            return false;
        }
        return $form;
    }


    public function save($data)
    {
        $dispatcher = JDispatcher::getInstance();
        $table  = JTable::getInstance('extension');
        $isNew = true;

        // Save the rules.
        if (isset($data['params']) && isset($data['params']['rules']))
        {
            $rules  = new JAccessRules($data['params']['rules']);
            $asset  = JTable::getInstance('asset');

            if (!$asset->loadByName($data['option']))
            {
                $root   = JTable::getInstance('asset');
                $root->loadByName('root.1');
                $asset->name = $data['option'];
                $asset->title = $data['option'];
                $asset->setLocation($root->id, 'last-child');
            }
            $asset->rules = (string) $rules;

            if (!$asset->check() || !$asset->store())
            {
                $this->setError($asset->getError());
                return false;
            }

            // We don't need this anymore
            unset($data['option']);
            unset($data['params']['rules']);
        }

        // Load the previous Data
        if (!$table->load($data['id']))
        {
            $this->setError($table->getError());
            return false;
        }

        unset($data['id']);

        // Bind the data.
        if (!$table->bind($data))
        {
            $this->setError($table->getError());
            return false;
        }

        // Check the data.
        if (!$table->check())
        {
            $this->setError($table->getError());
            return false;
        }

        // Trigger the oonConfigurationBeforeSave event.
        $result = $dispatcher->trigger($this->event_before_save, array($this->option . '.' . $this->name, $table, $isNew));

        if (in_array(false, $result, true))
        {
            $this->setError($table->getError());
            return false;
        }

        // Store the data.
        if (!$table->store())
        {
            $this->setError($table->getError());
            return false;
        }

        // Clean the component cache.
        $this->cleanCache('_system');

        // Trigger the onConfigurationAfterSave event.
        $dispatcher->trigger($this->event_after_save, array($this->option . '.' . $this->name, $table, $isNew));


        return true;
    }

    function getComponent()
    {


        $result = JComponentHelper::getComponent('com_mycomponent');

        return $result;
    }




}

表/ mycomponent.php

<?php
// No direct access
defined('_JEXEC') or die('Restricted access');

// import Joomla table library
jimport('joomla.database.table');

/**
 * Hello Table class
 */
class componentTableMycomponent extends JTable
{

    function __construct(&$db)
    {
        parent::__construct('#__extensions', 'extension_id', $db);
    }

    public function bind($array, $ignore = '')
    {
        if (isset($array['params']) && is_array($array['params']))
        {
            // Convert the params field to a string.
            $parameter = new JRegistry;
            $parameter->loadArray($array['params']);
            $array['params'] = (string)$parameter;
        }
        return parent::bind($array, $ignore);
    }



    public function load($pk = null, $reset = true)
    {
        if (parent::load($pk, $reset))
        {
            // Convert the params field to a registry.
            $params = new JRegistry;
            $params->loadJSON($this->params);
            $this->params = $params;
            return true;
        }
        else
        {
            return false;
        }
    }
    public function store($updateNulls = false)
    {
        // Transform the params field
        if (is_array($this->params)) {
            $registry = new JRegistry();
            $registry->loadArray($this->params);
            $this->params = (string)$registry;
        }

        $date   = JFactory::getDate();
        $user   = JFactory::getUser();
        if ($this->id) {
            // Existing item
            $this->modified     = $date->toSql();
            $this->modified_by  = $user->get('id');
        } else {
            // New newsfeed. A feed created and created_by field can be set by the user,
            // so we don't touch either of these if they are set.
            if (!intval($this->created)) {
                $this->created = $date->toSql();
            }
            if (empty($this->created_by)) {
                $this->created_by = $user->get('id');
            }
        }
        // Verify that the alias is unique
        $table = JTable::getInstance('Yourinstance', 'mycomponentTable');
        if ($table->load(array('alias'=>$this->alias, 'catid'=>$this->catid)) && ($table->id != $this->id || $this->id==0)) {
            $this->setError(JText::_('COM_CONTACT_ERROR_UNIQUE_ALIAS'));
            return false;
        }

        // Attempt to store the data.
        return parent::store($updateNulls);
    }

}

注意：您的config.xml文件应位于models / forms文件夹中。

Answer 2

如果要将参数存储在扩展表中，为什么不只使用com_config呢？

参见http://docs.joomla.org/J2.5:Developing_a_MVC_Component/Adding_configuration

然后，除了创建config.xml并在工具栏中添加指向config选项的链接之外，您无需执行任何其他操作。