我一直在尝试在文章组件后端创建一个表单，这样我就可以为每篇文章添加一些内容属性。我从joomla网站文档中获得了此示例代码。 http://docs.joomla.org/Adding_custom_fields_to_the_article_component
我理解onContentPrepareForm方法是一个重要的函数，它在joomla文章后端添加了这个表单。但是，它似乎不适合我。我以某种方式检查了全局其他选项，并且我看到该表单作为单独的选项卡出现在全局文章选项中。但是，我想为每篇文章添加此表单。
我使用的joomla版本是3.2 ... 顺便说一下，我在后端启用了插件......
<?php
/**
* @package Joomla.Site
* @subpackage plg_content_rating
* @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('JPATH_BASE') or die;
jimport('joomla.utilities.date');
/**
* An example custom profile plugin.
*
* @package Joomla.Plugin
* @subpackage User.profile
* @version 1.6
*/
class plgContentRating extends JPlugin
{
/**
* Constructor
*
* @access protected
* @param object $subject The object to observe
* @param array $config An array that holds the plugin configuration
* @since 2.5
*/
public function __construct(& $subject, $config)
{
parent::__construct($subject, $config);
$this->loadLanguage();
}
/**
* @param string $context The context for the data
* @param int $data The user id
* @param object
*
* @return boolean
* @since 2.5
*/
function onContentPrepareData($context, $data)
{
if (is_object($data))
{
$articleId = isset($data->id) ? $data->id : 0;
if (!isset($data->rating) and $articleId > 0)
{
// Load the profile data from the database.
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('profile_key, profile_value');
$query->from('#__user_profiles');
$query->where('user_id = ' . $db->Quote($articleId));
$query->where('profile_key LIKE ' . $db->Quote('rating.%'));
$query->order('ordering');
$db->setQuery($query);
$results = $db->loadRowList();
// Check for a database error.
if ($db->getErrorNum())
{
$this->_subject->setError($db->getErrorMsg());
return false;
}
// Merge the profile data.
$data->rating = array();
foreach ($results as $v)
{
$k = str_replace('rating.', '', $v[0]);
$data->rating[$k] = json_decode($v[1], true);
if ($data->rating[$k] === null)
{
$data->rating[$k] = $v[1];
}
}
}
}
return true;
}
/**
* @param JForm $form The form to be altered.
* @param array $data The associated data for the form.
*
* @return boolean
* @since 2.5
*/
function onContentPrepareForm($form, $data)
{
if (!($form instanceof JForm))
{
$this->_subject->setError('JERROR_NOT_A_FORM');
return false;
}
/* if (!in_array($form->getName(), array('com_content.article'))) {
return true;
}*/
// Add the extra fields to the form.
// need a seperate directory for the installer not to consider the XML a package when "discovering"
JForm::addFormPath(dirname(__FILE__) . '/rating');
$form->loadFile('rating',false);
return true;
}
/**
* Example after save content method
* Article is passed by reference, but after the save, so no changes will be saved.
* Method is called right after the content is saved
*
* @param string The context of the content passed to the plugin (added in 1.6)
* @param object A JTableContent object
* @param bool If the content is just about to be created
* @since 2.5
*/
public function onContentAfterSave($context, &$article, $isNew)
{
$articleId = $article->id;
if ($articleId && isset($article->rating) && (count($article->rating)))
{
try
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->delete('#__user_profiles');
$query->where('user_id = ' . $db->Quote($articleId));
$query->where('profile_key LIKE ' . $db->Quote('rating.%'));
$db->setQuery($query);
if (!$db->query()) {
throw new Exception($db->getErrorMsg());
}
$query->clear();
$query->insert('#__user_profiles');
$order = 1;
foreach ($article->rating as $k => $v)
{
$query->values($articleId.', '.$db->quote('rating.'.$k).', '.$db->quote(json_encode($v)).', '.$order++);
}
$db->setQuery($query);
if (!$db->query()) {
throw new Exception($db->getErrorMsg());
}
}
catch (JException $e)
{
$this->_subject->setError($e->getMessage());
return false;
}
}
return true;
}
/**
* Finder after delete content method
* Article is passed by reference, but after the save, so no changes will be saved.
* Method is called right after the content is saved
*
* @param string The context of the content passed to the plugin (added in 1.6)
* @param object A JTableContent object
* @since 2.5
*/
public function onContentAfterDelete($context, $article)
{
$articleId = $article->id;
if ($articleId)
{
try
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->delete();
$query->from('#__user_profiles');
$query->where('user_id = ' . $db->Quote($articleId));
$query->where('profile_key LIKE ' . $db->Quote('rating.%'));
$db->setQuery($query);
if (!$db->query())
{
throw new Exception($db->getErrorMsg());
}
}
catch (JException $e)
{
$this->_subject->setError($e->getMessage());
return false;
}
}
return true;
}
public function onContentPrepare($context, &$article, &$params, $page = 0)
{
if (!isset($article->rating) || !count($article->rating))
return;
// add extra css for table
$doc = JFactory::getDocument();
$doc->addStyleSheet(JURI::base(true).'/plugins/content/rating/rating/rating.css');
// construct a result table on the fly
jimport('joomla.html.grid');
$table = new JGrid();
// Create columns
$table->addColumn('attr')
->addColumn('value');
// populate
$rownr = 0;
foreach ($article->rating as $attr => $value) {
$table->addRow(array('class' => 'row'.($rownr % 2)));
$table->setRowCell('attr', $attr);
$table->setRowCell('value', $value);
$rownr++;
}
// wrap table in a classed <div>
$suffix = $this->params->get('ratingclass_sfx', 'rating');
$html = '<div class="'.$suffix.'">'.(string)$table.'</div>';
$article->text = $html.$article->text;
}
}
编辑帖子： 我将此代码添加到/administrator/components/com_content/views/article/tmpl/edit.php
<?php
$i = 0;
$fieldSets = $this->form->getFieldsets();
foreach ($fieldSets as $name => $fieldSet) :
if($i <= 3){
$i++;
continue;
}
echo JHtml::_('bootstrap.addTab', 'myTab', $fieldSet->name, JText::_($fieldSet->label, true));
?>
<div class="tab-pane" id="<?php echo $name;?>">
<?php
if (isset($fieldSet->description) && !empty($fieldSet->description)) :
echo '<p class="tab-description">'.JText::_($fieldSet->description).'</p>';
endif;
foreach ($this->form->getFieldset($name) as $field):
?>
<div class="control-group">
<?php if (!$field->hidden && $name != "permissions") : ?>
<div class="control-label">
<?php echo $field->label; ?>
</div>
<?php endif; ?>
<div class="<?php if ($name != "permissions") : ?>controls<?php endif; ?>">
<?php echo $field->input; ?>
</div>
</div>
<?php
endforeach;
?>
</div>
<?php echo JHtml::_('bootstrap.endTab'); ?>
<?php endforeach; ?>
答案 0 :(得分：2)
正如您所提到的，核心tmpl文件不支持您的更改。
黑客核心文件（正如你所做的那样）是一个非常糟糕的主意，原因有几个，包括在下一个3.2.x安全补丁发布时可能会被覆盖（如即将发布的3.2.1）并且肯定会被覆盖将在3.5发布时发布。鉴于Joomla快速发布安全补丁以及他们定期的一键式主要和次要更新周期，您最不想担心的是您的更改被吹走了。
幸运的是Joomla允许您创建template overrides，admin的流程与前端模板的覆盖几乎相同。
幸运的是，修改是在正确的文件中，假设您使用的是默认管理模板Isis，只需复制
/administrator/components/com_content/views/article/tmpl/edit.php
为：
/administrator/templates/isis/html/com_content/article/edit.php
您可能希望还原原始文件，但如上所述，几乎可以肯定是在安全更新或版本更新中进行更新。
答案 1 :(得分：0)
在另一篇文章[{3}}中找到了解决问题（和我的问题）的解决方案，希望它有所帮助。看来示例插件包含错误