我正在使用 Joomla 3.x 并创建文章覆盖。它适用于某些文章。但是当我申请另一篇文章时，在单个文章菜单项中，它不起作用。
更新
这是我的整个覆盖文件：
<?php
/**
* @package Joomla.Site
* @subpackage com_content
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
JHtml::addIncludePath(JPATH_COMPONENT . '/helpers');
// Create shortcuts to some parameters.
$params = $this->item->params;
$images = json_decode($this->item->images);
$urls = json_decode($this->item->urls);
$canEdit = $params->get('access-edit');
$user = JFactory::getUser();
$info = $params->get('info_block_position', 0);
JHtml::_('behavior.caption');
?>
<div class="item-page<?php echo $this->pageclass_sfx?>">
<?php if ($this->params->get('show_page_heading') && $params->get('show_title')) : ?>
<div class="page-header">
<h1> <?php echo $this->escape($this->params->get('page_heading')); ?> </h1>
</div>
<?php endif;
if (!empty($this->item->pagination) && $this->item->pagination && !$this->item->paginationposition && $this->item->paginationrelative)
{
echo $this->item->pagination;
}
?>
<?php if ($params->get('show_title') || $params->get('show_author')) : ?>
<div class="page-header">
<h2>
<?php if ($this->item->state == 0) : ?>
<span class="label label-warning"><?php echo JText::_('JUNPUBLISHED'); ?></span>
<?php endif; ?>
<?php if ($params->get('show_title')) : ?>
<?php if ($params->get('link_titles') && !empty($this->item->readmore_link)) : ?>
<a href="<?php echo $this->item->readmore_link; ?>"> <?php echo $this->escape($this->item->title); ?></a>
<?php else : ?>
<?php echo $this->escape($this->item->title); ?>
<?php endif; ?>
<?php endif; ?>
</h2>
<p class="date-created"><?php echo JText::sprintf('COM_CONTENT_CREATED_DATE_ON', JHtml::_('date', $this->item->created, JText::_('DATE_FORMAT_LC3'))); ?></p>
</div>
<?php endif; ?>
<?php if (!$this->print) : ?>
<?php if ($canEdit || $params->get('show_print_icon') || $params->get('show_email_icon')) : ?>
<div class="btn-group pull-right">
<a class="btn dropdown-toggle" data-toggle="dropdown" href="#"> <span class="icon-cog"></span> <span class="caret"></span> </a>
<?php // Note the actions class is deprecated. Use dropdown-menu instead. ?>
<ul class="dropdown-menu actions">
<?php if ($params->get('show_print_icon')) : ?>
<li class="print-icon"> <?php echo JHtml::_('icon.print_popup', $this->item, $params); ?> </li>
<?php endif; ?>
<?php if ($params->get('show_email_icon')) : ?>
<li class="email-icon"> <?php echo JHtml::_('icon.email', $this->item, $params); ?> </li>
<?php endif; ?>
<?php if ($canEdit) : ?>
<li class="edit-icon"> <?php echo JHtml::_('icon.edit', $this->item, $params); ?> </li>
<?php endif; ?>
</ul>
</div>
<?php endif; ?>
<?php else : ?>
<div class="pull-right">
<?php echo JHtml::_('icon.print_screen', $this->item, $params); ?>
</div>
<?php endif; ?>
<?php $useDefList = ($params->get('show_modify_date') || $params->get('show_publish_date') || $params->get('show_create_date')
|| $params->get('show_hits') || $params->get('show_category') || $params->get('show_parent_category') || $params->get('show_author')); ?>
<?php if ($useDefList && ($info == 0 || $info == 2)) : ?>
<div class="article-info muted">
<dl class="article-info">
<!--<dt class="article-info-term"><?php echo JText::_('COM_CONTENT_ARTICLE_INFO'); ?></dt>-->
<?php if ($params->get('show_author') && !empty($this->item->author )) : ?>
<dd class="createdby">
<?php $author = $this->item->created_by_alias ? $this->item->created_by_alias : $this->item->author; ?>
<?php if (!empty($this->item->contactid) && $params->get('link_author') == true) : ?>
<?php
$needle = 'index.php?option=com_contact&view=contact&id=' . $this->item->contactid;
$menu = JFactory::getApplication()->getMenu();
$item = $menu->getItems('link', $needle, true);
$cntlink = !empty($item) ? $needle . '&Itemid=' . $item->id : $needle;
?>
<?php echo JText::sprintf('COM_CONTENT_WRITTEN_BY', JHtml::_('link', JRoute::_($cntlink), $author)); ?>
<?php else: ?>
<?php echo JText::sprintf('COM_CONTENT_WRITTEN_BY', $author); ?>
<?php endif; ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_parent_category') && !empty($this->item->parent_slug)) : ?>
<dd class="parent-category-name">
<?php $title = $this->escape($this->item->parent_title);
$url = '<a href="'.JRoute::_(ContentHelperRoute::getCategoryRoute($this->item->parent_slug)).'">'.$title.'</a>';?>
<?php if ($params->get('link_parent_category') && !empty($this->item->parent_slug)) : ?>
<?php echo JText::sprintf('COM_CONTENT_PARENT', $url); ?>
<?php else : ?>
<?php echo JText::sprintf('COM_CONTENT_PARENT', $title); ?>
<?php endif; ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_category')) : ?>
<dd class="category-name">
<?php $title = $this->escape($this->item->category_title);
$url = '<a href="' . JRoute::_(ContentHelperRoute::getCategoryRoute($this->item->catslug)) . '">' . $title . '</a>';?>
<?php if ($params->get('link_category') && $this->item->catslug) : ?>
<?php echo JText::sprintf('COM_CONTENT_CATEGORY', $url); ?>
<?php else : ?>
<?php echo JText::sprintf('COM_CONTENT_CATEGORY', $title); ?>
<?php endif; ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_publish_date')) : ?>
<dd class="published">
<!--<span class="icon-calendar"></span>--> <?php echo JText::sprintf('COM_CONTENT_PUBLISHED_DATE_ON', JHtml::_('date', $this->item->publish_up, JText::_('DATE_FORMAT_LC3'))); ?>
</dd>
<?php endif; ?>
<?php if ($info == 0) : ?>
<?php if ($params->get('show_modify_date')) : ?>
<dd class="modified">
<!--<span class="icon-calendar"></span>--> <?php echo JText::sprintf('COM_CONTENT_LAST_UPDATED', JHtml::_('date', $this->item->modified, JText::_('DATE_FORMAT_LC3'))); ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_create_date')) : ?>
<dd class="create">
<!--<span class="icon-calendar"></span>--> <?php echo JText::sprintf('COM_CONTENT_CREATED_DATE_ON', JHtml::_('date', $this->item->created, JText::_('DATE_FORMAT_LC3'))); ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_hits')) : ?>
<dd class="hits">
<span class="icon-eye-open"></span> <?php echo JText::sprintf('COM_CONTENT_ARTICLE_HITS', $this->item->hits); ?>
</dd>
<?php endif; ?>
<?php endif; ?>
</dl>
</div>
<?php endif; ?>
<?php if (!$params->get('show_intro')) : echo $this->item->event->afterDisplayTitle; endif; ?>
<?php echo $this->item->event->beforeDisplayContent; ?>
<?php if (isset($urls) && ((!empty($urls->urls_position) && ($urls->urls_position == '0')) || ($params->get('urls_position') == '0' && empty($urls->urls_position)))
|| (empty($urls->urls_position) && (!$params->get('urls_position')))) : ?>
<?php echo $this->loadTemplate('links'); ?>
<?php endif; ?>
<?php if ($params->get('access-view')):?>
<?php if (isset($images->image_fulltext) && !empty($images->image_fulltext)) : ?>
<?php $imgfloat = (empty($images->float_fulltext)) ? $params->get('float_fulltext') : $images->float_fulltext; ?>
<div class="pull-<?php echo htmlspecialchars($imgfloat); ?> item-image"> <img
<?php if ($images->image_fulltext_caption):
echo 'class="caption"'.' title="' .htmlspecialchars($images->image_fulltext_caption) . '"';
endif; ?>
src="<?php echo htmlspecialchars($images->image_fulltext); ?>" alt="<?php echo htmlspecialchars($images->image_fulltext_alt); ?>"/> </div>
<?php endif; ?>
<?php
if (!empty($this->item->pagination) && $this->item->pagination && !$this->item->paginationposition && !$this->item->paginationrelative):
echo $this->item->pagination;
endif;
?>
<?php if (isset ($this->item->toc)) :
echo $this->item->toc;
endif; ?>
<div class="article-text"><?php echo $this->item->text; ?></div>
<?php if ($useDefList && ($info == 1 || $info == 2)) : ?>
<div class="article-info muted">
<dl class="article-info">
<!--<dt class="article-info-term"><?php echo JText::_('COM_CONTENT_ARTICLE_INFO'); ?></dt>-->
<?php if ($info == 1) : ?>
<?php if ($params->get('show_author') && !empty($this->item->author )) : ?>
<dd class="createdby">
<?php $author = $this->item->created_by_alias ? $this->item->created_by_alias : $this->item->author; ?>
<?php if (!empty($this->item->contactid) && $params->get('link_author') == true) : ?>
<?php
$needle = 'index.php?option=com_contact&view=contact&id=' . $this->item->contactid;
$menu = JFactory::getApplication()->getMenu();
$item = $menu->getItems('link', $needle, true);
$cntlink = !empty($item) ? $needle . '&Itemid=' . $item->id : $needle;
?>
<?php echo JText::sprintf('COM_CONTENT_WRITTEN_BY', JHtml::_('link', JRoute::_($cntlink), $author)); ?>
<?php else: ?>
<?php echo JText::sprintf('COM_CONTENT_WRITTEN_BY', $author); ?>
<?php endif; ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_parent_category') && !empty($this->item->parent_slug)) : ?>
<dd class="parent-category-name">
<?php $title = $this->escape($this->item->parent_title);
$url = '<a href="' . JRoute::_(ContentHelperRoute::getCategoryRoute($this->item->parent_slug)) . '">' . $title . '</a>';?>
<?php if ($params->get('link_parent_category') && $this->item->parent_slug) : ?>
<?php echo JText::sprintf('COM_CONTENT_PARENT', $url); ?>
<?php else : ?>
<?php echo JText::sprintf('COM_CONTENT_PARENT', $title); ?>
<?php endif; ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_category')) : ?>
<dd class="category-name">
<?php $title = $this->escape($this->item->category_title);
$url = '<a href="' . JRoute::_(ContentHelperRoute::getCategoryRoute($this->item->catslug)) . '">' . $title . '</a>';?>
<?php if ($params->get('link_category') && $this->item->catslug) : ?>
<?php echo JText::sprintf('COM_CONTENT_CATEGORY', $url); ?>
<?php else : ?>
<?php echo JText::sprintf('COM_CONTENT_CATEGORY', $title); ?>
<?php endif; ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_publish_date')) : ?>
<dd class="published">
<!--<!--<span class="icon-calendar"></span>-->-->
<?php echo JText::sprintf('COM_CONTENT_PUBLISHED_DATE_ON', JHtml::_('date', $this->item->publish_up, JText::_('DATE_FORMAT_LC3'))); ?>
</dd>
<?php endif; ?>
<?php endif; ?>
<?php if ($params->get('show_create_date')) : ?>
<dd class="create">
<!--<!--<span class="icon-calendar"></span>-->-->
<?php echo JText::sprintf('COM_CONTENT_CREATED_DATE_ON', JHtml::_('date', $this->item->modified, JText::_('DATE_FORMAT_LC3'))); ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_modify_date')) : ?>
<dd class="modified">
<!--<span class="icon-calendar"></span>-->
<?php echo JText::sprintf('COM_CONTENT_LAST_UPDATED', JHtml::_('date', $this->item->modified, JText::_('DATE_FORMAT_LC3'))); ?>
</dd>
<?php endif; ?>
<?php if ($params->get('show_hits')) : ?>
<dd class="hits">
<span class="icon-eye-open"></span> <?php echo JText::sprintf('COM_CONTENT_ARTICLE_HITS', $this->item->hits); ?>
</dd>
<?php endif; ?>
</dl>
</div>
<?php endif; ?>
<?php
if (!empty($this->item->pagination) && $this->item->pagination && $this->item->paginationposition && !$this->item->paginationrelative):
echo $this->item->pagination;
?>
<?php endif; ?>
<?php if (isset($urls) && ((!empty($urls->urls_position) && ($urls->urls_position == '1')) || ($params->get('urls_position') == '1'))) : ?>
<?php echo $this->loadTemplate('links'); ?>
<?php endif; ?>
<?php //optional teaser intro text for guests ?>
<?php elseif ($params->get('show_noauth') == true && $user->get('guest')) : ?>
<?php echo $this->item->introtext; ?>
<?php //Optional link to let them register to see the whole article. ?>
<?php if ($params->get('show_readmore') && $this->item->fulltext != null) :
$link1 = JRoute::_('index.php?option=com_users&view=login');
$link = new JURI($link1);?>
<p class="readmore">
<a href="<?php echo $link; ?>">
<?php $attribs = json_decode($this->item->attribs); ?>
<?php
if ($attribs->alternative_readmore == null) :
echo JText::_('COM_CONTENT_REGISTER_TO_READ_MORE');
elseif ($readmore = $this->item->alternative_readmore) :
echo $readmore;
if ($params->get('show_readmore_title', 0) != 0) :
echo JHtml::_('string.truncate', ($this->item->title), $params->get('readmore_limit'));
endif;
elseif ($params->get('show_readmore_title', 0) == 0) :
echo JText::sprintf('COM_CONTENT_READ_MORE_TITLE');
else :
echo JText::_('COM_CONTENT_READ_MORE');
echo JHtml::_('string.truncate', ($this->item->title), $params->get('readmore_limit'));
endif; ?>
</a>
</p>
<?php endif; ?>
<?php endif; ?>
<?php
if (!empty($this->item->pagination) && $this->item->pagination && $this->item->paginationposition && $this->item->paginationrelative) :
echo $this->item->pagination;
?>
<?php endif; ?>
<?php echo $this->item->event->afterDisplayContent; ?> </div>
更新 2
我发现了一件事：如果文章与菜单项（类型：类别列表）相关联，则替代布局有效。但是当文章关联一个菜单项（类型：Single Article）时，Alternative Layout 不起作用。在这两种情况下，替代布局如何发挥作用？