Joomla 2.5自定义文章字段未在管理界面中显示

Question

我需要收集一些地理定位数据，以便与客户网站上的文章相关联。因此，我想在Joomla管理部分的“创建新文章”页面中添加一个额外的弹出窗口。

我一直在关注此Joomla文档页面中列出的示例 - http://docs.joomla.org/Adding_custom_fields_to_the_article_component

在使用我的插件名称等更新示例代码后，我可以正确安装插件 - 但它不会在“创建新文章”页面中显示为弹出窗口。

有关我需要解决的问题的任何想法？代码如下。

干杯， 丹

Geodata.xml

<?xml version="1.0" encoding="utf-8"?>

<name>Geodata for Articles</name>
<author>Dan</author>
<creationDate>November 2013</creationDate>
<copyright>(C) 2005 - 2013 Open Source Matters. All rights reserved.</copyright>
<license>GNU General Public License version 2 or later; see LICENSE.txt</license>
<authorEmail>dan@example.com</authorEmail>
<authorUrl>www.example.com</authorUrl>
<version>2.5.0</version>
<description>PLG_CONTENT_GEODATA_XML_DESCRIPTION</description>

  <files>
     <folder>language</folder>
     <folder>geodata</folder>
     <filename plugin="geodata">geodata.php</filename>
     <filename>index.html</filename>
  </files>

    <languages folder="language">
        <language tag="en-GB">en-GB.PLG_CONTENT_GEODATA.ini</language>
        <language tag="en-GB">en-GB.PLG_CONTENT_GEODATA.sys.ini</language>
    </languages>

  <config>
     <fields name="params">
        <fieldset name="basic">
           <field
              name="geodata_sfx"
              type="text"
              label="PLG_CONTENT_GEODATA_ITEM_FIELD_LATLON_LABEL"
              description="PLG_CONTENT_GEODATA_ITEM_FIELD_LATLON_DESC"
           />
        </fieldset>
     </fields>
  </config>

geodata.php

<?php 
/**
* @version      1.0.0
* @package      Geodata
* @subpackage   Geodata
* @copyright    2013 
* @license      GNU GPL
*/

//No Permision
defined( '_JEXEC' ) or die( 'Restricted access' );

//jimport('joomla.html.parameter');

class plgContentGeodata extends JPlugin {


public function __construct(& $subject, $config)
   {
      parent::__construct($subject, $config);
      $this->loadLanguage();
   }

public function onContentPrepareForm($form, $data)
   {
      if (!($form instanceof JForm))
      {
         $this->_subject->setError('JERROR_NOT_A_FORM');
         return false;
      }

      // Add the extra fields to the form.
      JForm::addFormPath(dirname(__FILE__). '/geodata');
      $form->loadFile('geodata', false);
      return true;
   }

public function onContentPrepareData($context, $data)
   {
      if (is_object($data))
      {
         $articleId = isset($data->id) ? $data->id : 0;
         if ($articleId > 0)
         {
            // Load the 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('geodata.%'));
            $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 data.
            $data->geodata = array();

            foreach ($geodata as $v)
            {
               $k = str_replace('geodata.', '', $v[0]);
               $data->geodata[$k] = json_decode($v[1], true);
               if ($data->geodata[$k] === null)
               {
                  $data->geodata[$k] = $v[1];
               }
            }
         } else {
            // load the form
            JForm::addFormPath(dirname(__FILE__) . '/geodata');
            $form = new JForm('com_content.article');
            $form->loadFile('geodata', false);

            // Merge the default values
            $data->geodata = array();
            foreach ($form->getFieldset('geodata') as $field) {
               $data->geodata[] = array($field->fieldname, $field->value);
            }
         }
      }

      return true;
   }

public function onContentAfterSave($context, &$article, $isNew)
   {
      $articleId = $article->id;
      if ($articleId && isset($article->geodata) && (count($article->geodata)))
      {
         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('geodata.%'));
            $db->setQuery($query);
            if (!$db->query()) {
               throw new Exception($db->getErrorMsg());
            }

            $query->clear();
            $query->insert('#__user_profiles');
            $order = 1;
            foreach ($article->geodata as $k => $v)
            {
               $query->values($articleId.', '.$db->quote('geodata.'.$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;
   }

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('geodata.%'));
            $db->setQuery($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->geodata) || !count($article->geodata))
         return;

      // add extra css for table
      $doc = JFactory::getDocument();
      $doc->addStyleSheet(JURI::base(true).'/plugins/content/geodata/geodata/geodata.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('geodata_sfx', 'geodata');
      $html = '<div class="'.$suffix.'">'.(string)$table.'</div>';

      $article->text = $html.$article->text;
   }

}
?>