Wie erstelle ich eine EAV-Entität?

Wie erstelle ich eine EAV-Entität?

Diese Frage taucht im Web häufig auf. Es gibt einige gute Blog-Artikel, die erklären, wie man das macht, aber keiner von ihnen ist für mich zufriedenstellend.
Also entschied ich mich für eine selbst beantwortete Frage und erklärte, wie ich es mache ... und es scheint zu funktionieren.

Hier ist viel Code drin. Um richtig zu lesen, sortieren Sie die Antworten nach "ältesten".

Teil 1

Für den Zweck dieser Demo werde ich ein Modul erstellen Easylife_News, das eine Entität mit dem Namen enthält Article.
Das Modul enthält vollständigen CRUD-Code für das Backend, einschließlich des Abschnitts zum Verwalten von Attributen sowie einige einfache Frontend-Listen und Ansichtsseiten für jeden Artikel. Es wird auch ein Menüpunkt im oberen Menü zur Auflistung der Artikel hinzugefügt.
Es enthält auch URL-Rewrites, RSS-Feeds und Breadcrumbs für das Frontend. Diese Einheit wird 4 Attribute hat: Title, Short Description, Description, Publish Datezusätzlich zu den System Einsen ( created_at, updated_at, status, in_rss, url_key).
Das Modul sollte die folgenden Dateien enthalten.

app/etc/module/Easylife_News.xml - das Deklarationsmodul:

<?xml version="1.0"?>
<config>
    <modules>
        <Easylife_News>
            <active>true</active>
            <codePool>local</codePool>
            <depends>
                <Mage_Catalog /><!-- some classes extend one class from the catalog module to avoid duplicating it -->
             </depends>
        </Easylife_News>
    </modules>
</config>

app/code/local/Easylife/News/etc/config.xml - die Konfigurationsdatei

<?xml version="1.0"?>
<config>
    <modules>
        <Easylife_News>
            <version>1.0.0</version>
        </Easylife_News>
    </modules>
    <global>
        <resources>
            <easylife_news_setup>
                <setup>
                    <module>Easylife_News</module>
                    <class>Easylife_News_Model_Resource_Setup</class>
                </setup>
            </easylife_news_setup>
        </resources>
        <blocks>
            <easylife_news>
                <class>Easylife_News_Block</class>
            </easylife_news>
        </blocks>
        <helpers>
            <easylife_news>
                <class>Easylife_News_Helper</class>
            </easylife_news>
        </helpers>
        <models>
            <easylife_news>
                <class>Easylife_News_Model</class>
                <resourceModel>easylife_news_resource</resourceModel>
            </easylife_news>
            <easylife_news_resource>
                <class>Easylife_News_Model_Resource</class>
                <entities>
                    <article>
                        <table>easylife_news_article</table>
                    </article>
                    <eav_attribute>
                        <table>easylife_news_eav_attribute</table>
                    </eav_attribute>
                </entities>
            </easylife_news_resource>
        </models>
        <events>
            <controller_front_init_routers><!-- event for custom router - url rewrites -->
                <observers>
                    <easylife_news>
                        <class>Easylife_News_Controller_Router</class>
                        <method>initControllerRouters</method>
                    </easylife_news>
                </observers>
            </controller_front_init_routers>
        </events>
    </global>
    <adminhtml>
        <layout>
            <updates>
                <easylife_news>
                    <file>easylife_news.xml</file>
                </easylife_news>
            </updates>
        </layout>
        <translate>
            <modules>
                <Easylife_News>
                    <files>
                        <default>Easylife_News.csv</default>
                    </files>
                </Easylife_News>
            </modules>
        </translate>
        <global_search>
            <article>
                <class>easylife_news/adminhtml_search_article</class>
                <acl>easylife_news</acl>
            </article>
        </global_search>
    </adminhtml>
    <admin>
        <routers>
            <adminhtml>
                <args>
                    <modules>
                        <Easylife_News before="Mage_Adminhtml">Easylife_News_Adminhtml</Easylife_News>
                    </modules>
                </args>
            </adminhtml>
        </routers>
    </admin>
    <frontend>
        <events>
            <page_block_html_topmenu_gethtml_before><!-- add link to top menu -->
                <observers>
                    <easylife_news>
                        <class>easylife_news/observer</class>
                        <method>addItemsToTopmenuItems</method>
                    </easylife_news>
                </observers>
            </page_block_html_topmenu_gethtml_before>
        </events>

        <routers>
            <easylife_news>
                <use>standard</use>
                <args>
                    <module>Easylife_News</module>
                    <frontName>news</frontName>
                </args>
            </easylife_news>
        </routers>
        <layout>
            <updates>
                <easylife_news>
                    <file>easylife_news.xml</file>
                </easylife_news>
            </updates>
        </layout>
        <translate>
            <modules>
                <Easylife_News>
                    <files>
                        <default>Easylife_News.csv</default>
                    </files>
                </Easylife_News>
            </modules>
        </translate>
    </frontend>
    <default>
        <easylife_news>
            <article>
                <breadcrumbs>1</breadcrumbs>
                <url_prefix>article</url_prefix>
                <url_suffix>html</url_suffix>
                <rss>1</rss>
                <meta_title>Articles</meta_title>
            </article>
        </easylife_news>
    </default>
</config>

app/code/local/Easylife/News/etc/adminhtml.xml - die Admin-Acl- und Menü-Datei.

<?xml version="1.0"?>
<config>
    <acl>
        <resources>
            <admin>
                <children>
                    <system>
                        <children>
                            <config>
                                <children>
                                    <easylife_news translate="title" module="easylife_news">
                                        <title>News</title>
                                    </easylife_news>
                                </children>
                            </config>
                        </children>
                    </system>
                    <cms>
                        <children>
                            <easylife_news translate="title" module="easylife_news">
                                <title>News</title>
                                    <children>
                                        <article translate="title" module="easylife_news">
                                            <title>Article</title>
                                            <sort_order>0</sort_order>
                                        </article>
                                        <article_attributes translate="title" module="easylife_news">
                                            <title>Manage Article attributes</title>
                                            <sort_order>7</sort_order>
                                        </article_attributes>
                                    </children>
                                </easylife_news>
                            </children>
                        </cms>

                </children>
            </admin>
        </resources>
    </acl>
    <menu>
        <cms><!-- I added the admin menu under CMS. Feel free to move it. -->
            <children>
                <easylife_news translate="title" module="easylife_news">
                    <title>News</title>
                    <sort_order>17</sort_order>
                    <children>
                        <article translate="title" module="easylife_news">
                            <title>Article</title>
                            <action>adminhtml/news_article</action>
                            <sort_order>0</sort_order>
                        </article>
                        <article_attributes translate="title" module="easylife_news">
                            <title>Manage Article Attributes</title>
                            <action>adminhtml/news_article_attribute</action>
                            <sort_order>7</sort_order>
                        </article_attributes>
                    </children>
                </easylife_news>
            </children>
        </cms>

    </menu>
</config>

app/code/local/Easylife/News/etc/system.xml- die Systemkonfigurationsdatei. Hier können Sie einige Einstellungen wie SEO für die Artikelliste, Breadcrumbs, RSS aktivieren / deaktivieren, URL-Präfix und Suffix verwalten

<?xml version="1.0"?>
<config>
    <tabs>
        <easylife translate="label" module="easylife_news">
            <label>News</label>
            <sort_order>2000</sort_order>
        </easylife>
    </tabs>
    <sections>
        <easylife_news translate="label" module="easylife_news">
            <class>separator-top</class>
            <label>News</label>
            <tab>easylife</tab>
            <frontend_type>text</frontend_type>
            <sort_order>100</sort_order>
            <show_in_default>1</show_in_default>
            <show_in_website>1</show_in_website>
            <show_in_store>1</show_in_store>
            <groups>
                <article translate="label" module="easylife_news">
                    <label>Article</label>
                    <frontend_type>text</frontend_type>
                    <sort_order>0</sort_order>
                    <show_in_default>1</show_in_default>
                    <show_in_website>1</show_in_website>
                    <show_in_store>1</show_in_store>
                    <fields>
                        <breadcrumbs translate="label">
                            <label>Use Breadcrumbs</label>
                            <frontend_type>select</frontend_type>
                            <source_model>adminhtml/system_config_source_yesno</source_model>
                            <sort_order>10</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </breadcrumbs>
                        <url_prefix translate="label comment">
                            <label>URL prefix</label>
                            <frontend_type>text</frontend_type>
                            <sort_order>20</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                            <comment>Leave empty for no prefix</comment>
                        </url_prefix>
                        <url_suffix translate="label comment">
                            <label>Url suffix</label>
                            <frontend_type>text</frontend_type>
                            <sort_order>30</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                            <comment>What goes after the dot. Leave empty for no suffix.</comment>
                        </url_suffix>
                        <rss translate="label">
                            <label>Enable rss</label>
                            <frontend_type>select</frontend_type>
                            <source_model>adminhtml/system_config_source_yesno</source_model>
                            <sort_order>40</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </rss>
                        <meta_title translate="label">
                            <label>Meta title for articles list page</label>
                            <frontend_type>text</frontend_type>
                            <sort_order>50</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </meta_title>
                        <meta_description translate="label">
                            <label>Meta description for articles list page</label>
                            <frontend_type>textarea</frontend_type>
                            <sort_order>60</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </meta_description>
                        <meta_keywords translate="label">
                            <label>Meta keywords for articles list page</label>
                            <frontend_type>textarea</frontend_type>
                            <sort_order>70</sort_order>
                            <show_in_default>1</show_in_default>
                            <show_in_website>1</show_in_website>
                            <show_in_store>1</show_in_store>
                        </meta_keywords>
                    </fields>
                </article>
            </groups>
        </easylife_news>
    </sections>
</config>

app/code/local/Easylife/News/sql/easylife_news_setup/install-1.0.0.php - das Installationsskript

<?php
$this->startSetup();
//create the entity table
$table = $this->getConnection()
    ->newTable($this->getTable('easylife_news/article'))
    ->addColumn('entity_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
        'identity'  => true,
        'unsigned'  => true,
        'nullable'  => false,
        'primary'   => true,
        ), 'Entity ID')
    ->addColumn('entity_type_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
        'unsigned'  => true,
        'nullable'  => false,
        'default'   => '0',
        ), 'Entity Type ID')
    ->addColumn('attribute_set_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
        'unsigned'  => true,
        'nullable'  => false,
        'default'   => '0',
        ), 'Attribute Set ID')
    ->addColumn('created_at', Varien_Db_Ddl_Table::TYPE_TIMESTAMP, null, array(
        ), 'Creation Time')
    ->addColumn('updated_at', Varien_Db_Ddl_Table::TYPE_TIMESTAMP, null, array(
        ), 'Update Time')
    ->addIndex($this->getIdxName('easylife_news/article', array('entity_type_id')),
        array('entity_type_id'))
    ->addIndex($this->getIdxName('easylife_news/article', array('attribute_set_id')),
        array('attribute_set_id'))
    ->addForeignKey(
        $this->getFkName(
            'easylife_news/article',
            'attribute_set_id',
            'eav/attribute_set',
            'attribute_set_id'
        ),
        'attribute_set_id', $this->getTable('eav/attribute_set'), 'attribute_set_id',
        Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
    ->addForeignKey($this->getFkName('easylife_news/article', 'entity_type_id', 'eav/entity_type', 'entity_type_id'),
        'entity_type_id', $this->getTable('eav/entity_type'), 'entity_type_id',
        Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
    ->setComment('Article Table');
$this->getConnection()->createTable($table);

//create the attribute values tables (int, decimal, varchar, text, datetime)
$articleEav = array();
$articleEav['int'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_INTEGER,
    'length'    => null,
    'comment'   => 'Article Datetime Attribute Backend Table'
);

$articleEav['varchar'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_TEXT,
    'length'    => 255,
    'comment'   => 'Article Varchar Attribute Backend Table'
);

$articleEav['text'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_TEXT,
    'length'    => '64k',
    'comment'   => 'Article Text Attribute Backend Table'
);

$articleEav['datetime'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_DATETIME,
    'length'    => null,
    'comment'   => 'Article Datetime Attribute Backend Table'
);

$articleEav['decimal'] = array(
    'type'      => Varien_Db_Ddl_Table::TYPE_DECIMAL,
    'length'    => '12,4',
    'comment'   => 'Article Datetime Attribute Backend Table'
);

foreach ($articleEav as $type => $options) {
    $table = $this->getConnection()
        ->newTable($this->getTable(array('easylife_news/article', $type)))
        ->addColumn('value_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
            'identity'  => true,
            'nullable'  => false,
            'primary'   => true,
            ), 'Value ID')
        ->addColumn('entity_type_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Entity Type ID')
        ->addColumn('attribute_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Attribute ID')
        ->addColumn('store_id', Varien_Db_Ddl_Table::TYPE_SMALLINT, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Store ID')
        ->addColumn('entity_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
            'unsigned'  => true,
            'nullable'  => false,
            'default'   => '0',
            ), 'Entity ID')
        ->addColumn('value', $options['type'], $options['length'], array(
            ), 'Value')
        ->addIndex(
            $this->getIdxName(
                array('easylife_news/article', $type),
                array('entity_id', 'attribute_id', 'store_id'),
                Varien_Db_Adapter_Interface::INDEX_TYPE_UNIQUE
            ),
            array('entity_id', 'attribute_id', 'store_id'),
            array('type' => Varien_Db_Adapter_Interface::INDEX_TYPE_UNIQUE))
        ->addIndex($this->getIdxName(array('easylife_news/article', $type), array('store_id')),
            array('store_id'))
        ->addIndex($this->getIdxName(array('easylife_news/article', $type), array('entity_id')),
            array('entity_id'))
        ->addIndex($this->getIdxName(array('easylife_news/article', $type), array('attribute_id')),
            array('attribute_id'))
        ->addForeignKey(
            $this->getFkName(
                array('easylife_news/article', $type),
                'attribute_id',
                'eav/attribute',
                'attribute_id'
            ),
            'attribute_id', $this->getTable('eav/attribute'), 'attribute_id',
            Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
        ->addForeignKey(
            $this->getFkName(
                array('easylife_news/article', $type),
                'entity_id',
                'easylife_news/article',
                'entity_id'
            ),
            'entity_id', $this->getTable('easylife_news/article'), 'entity_id',
            Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
        ->addForeignKey($this->getFkName(array('easylife_news/article', $type), 'store_id', 'core/store', 'store_id'),
            'store_id', $this->getTable('core/store'), 'store_id',
            Varien_Db_Ddl_Table::ACTION_CASCADE, Varien_Db_Ddl_Table::ACTION_CASCADE)
        ->setComment($options['comment']);
    $this->getConnection()->createTable($table);
}
//crete the news_eav_attribute (for additional attribute settings)
$table = $this->getConnection()
    ->newTable($this->getTable('easylife_news/eav_attribute'))
    ->addColumn('attribute_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(
        'identity'  => true,
        'nullable'  => false,
        'primary'   => true,
        ), 'Attribute ID')
    ->addColumn('is_global', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute scope')
    ->addColumn('position', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute position')
    ->addColumn('is_wysiwyg_enabled', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute uses WYSIWYG')
    ->addColumn('is_visible', Varien_Db_Ddl_Table::TYPE_INTEGER, null, array(), 'Attribute is visible')
    ->setComment('News attribute table');
$this->getConnection()->createTable($table);

$this->installEntities();
$this->endSetup();

Modelle app/code/local/Easylife/News/Model/Observer.php - fügen Sie den neuen Menüpunkt im oberen Menü hinzu:

<?php
class Easylife_News_Model_Observer {
    public function addItemsToTopmenuItems($observer) {
        $menu = $observer->getMenu();
        $tree = $menu->getTree();
        $action = Mage::app()->getFrontController()->getAction()->getFullActionName();

        $articleNodeId = 'article';
        $data = array(
            'name' => Mage::helper('easylife_news')->__('Articles'),
            'id' => $articleNodeId,
            'url' => Mage::helper('easylife_news/article')->getArticlesUrl(),
            'is_active' => ($action == 'easylife_news_article_index' || $action == 'easylife_news_article_view')
        );
        $articleNode = new Varien_Data_Tree_Node($data, 'id', $tree, $menu);
        $menu->addChild($articleNode);
        return $this;
    }
}

app/code/local/Easylife/News/Model/Article.php - das Artikelhauptmodell

<?php
class Easylife_News_Model_Article
    extends Mage_Catalog_Model_Abstract {
    const ENTITY    = 'easylife_news_article';
    const CACHE_TAG = 'easylife_news_article';
    protected $_eventPrefix = 'easylife_news_article';
    protected $_eventObject = 'article';
    public function _construct(){
        parent::_construct();
        $this->_init('easylife_news/article');
    }
    protected function _beforeSave(){
        parent::_beforeSave();
        $now = Mage::getSingleton('core/date')->gmtDate();
        if ($this->isObjectNew()){
            $this->setCreatedAt($now);
        }
        $this->setUpdatedAt($now);
        return $this;
    }
    public function getArticleUrl(){
        if ($this->getUrlKey()){
            $urlKey = '';
            if ($prefix = Mage::getStoreConfig('easylife_news/article/url_prefix')){
                $urlKey .= $prefix.'/';
            }
            $urlKey .= $this->getUrlKey();
            if ($suffix = Mage::getStoreConfig('easylife_news/article/url_suffix')){
                $urlKey .= '.'.$suffix;
            }
            return Mage::getUrl('', array('_direct'=>$urlKey));
        }
        return Mage::getUrl('easylife_news/article/view', array('id'=>$this->getId()));
    }
    public function checkUrlKey($urlKey, $active = true){
        return $this->_getResource()->checkUrlKey($urlKey, $active);
    }

    public function getDescription(){ //this needs to be implemented for all WYSIWYG attributes
        $description = $this->getData('description');
        $helper = Mage::helper('cms');
        $processor = $helper->getBlockTemplateProcessor();
        $html = $processor->filter($description);
        return $html;
    }
    public function getDefaultAttributeSetId() {
        return $this->getResource()->getEntityType()->getDefaultAttributeSetId();
    }
    public function getAttributeText($attributeCode) {
        $text = $this->getResource()
            ->getAttribute($attributeCode)
            ->getSource()
            ->getOptionText($this->getData($attributeCode));
        if (is_array($text)){
            return implode(', ',$text);
        }
        return $text;
    }
    public function getDefaultValues() {
        $values = array();
        $values['status'] = 1;
        $values['in_rss'] = 1;
        return $values;
    }
}

app/code/local/Easylife/News/Model/Resource/Article.php - das Ressourcenmodell für den Artikel

<?php
class Easylife_News_Model_Resource_Article
    extends Mage_Catalog_Model_Resource_Abstract {
    public function __construct() {
        $resource = Mage::getSingleton('core/resource');
        $this->setType('easylife_news_article')
            ->setConnection(
                $resource->getConnection('article_read'),
                $resource->getConnection('article_write')
            );

    }
    public function getMainTable() {
        return $this->getEntityTable();
    }
    public function checkUrlKey($urlKey, $storeId, $active = true){
        $stores = array(Mage_Core_Model_App::ADMIN_STORE_ID, $storeId);
        $select = $this->_initCheckUrlKeySelect($urlKey, $stores);
        if (!$select){
            return false;
        }
        $select->reset(Zend_Db_Select::COLUMNS)
            ->columns('e.entity_id')
            ->limit(1);
        return $this->_getReadAdapter()->fetchOne($select);
    }
    protected function _initCheckUrlKeySelect($urlKey, $store){
        $urlRewrite = Mage::getModel('eav/config')->getAttribute('easylife_news_article', 'url_key');
        if (!$urlRewrite || !$urlRewrite->getId()){
            return false;
        }
        $table = $urlRewrite->getBackend()->getTable();
        $select = $this->_getReadAdapter()->select()
            ->from(array('e' => $table))
            ->where('e.attribute_id = ?', $urlRewrite->getId())
            ->where('e.value = ?', $urlKey)
            ->where('e.store_id IN (?)', $store)
            ->order('e.store_id DESC');
        return $select;
    }
}

app/code/local/Easylife/News/Model/Resource/Article/Collection.php - das Sammlungsmodell

<?php
class Easylife_News_Model_Resource_Article_Collection
    extends Mage_Catalog_Model_Resource_Collection_Abstract {
    protected function _construct(){
        parent::_construct();
        $this->_init('easylife_news/article');
    }
    protected function _toOptionArray($valueField='entity_id', $labelField='title', $additional=array()){
        $this->addAttributeToSelect('title');
        return parent::_toOptionArray($valueField, $labelField, $additional);
    }
    protected function _toOptionHash($valueField='entity_id', $labelField='title'){
        $this->addAttributeToSelect('title');
        return parent::_toOptionHash($valueField, $labelField);
    }
    public function getSelectCountSql(){
        $countSelect = parent::getSelectCountSql();
        $countSelect->reset(Zend_Db_Select::GROUP);
        return $countSelect;
    }
}

Der Code ist zu lang, um in eine Antwort zu passen. Der Rest wird folgen ... warte darauf.

Teil 2 .

app/code/local/Easylife/News/Model/Attribute.php - das Modell für die Artikelattribute

<?php
class Easylife_News_Model_Attribute
    extends Mage_Eav_Model_Entity_Attribute {
    const SCOPE_STORE                           = 0;
    const SCOPE_GLOBAL                          = 1;
    const SCOPE_WEBSITE                         = 2;
    const MODULE_NAME                           = 'Easylife_News';
    const ENTITY                                = 'easylife_news_eav_attribute';
    protected $_eventPrefix                     = 'easylife_news_entity_attribute';
    protected $_eventObject                     = 'attribute';
    static protected $_labels                   = null;
    protected function _construct(){
        $this->_init('easylife_news/attribute');
    }
    protected function _beforeSave(){
        $this->setData('modulePrefix', self::MODULE_NAME);
        if (isset($this->_origData['is_global'])) {
            if (!isset($this->_data['is_global'])) {
                $this->_data['is_global'] = self::SCOPE_GLOBAL;
            }
        }
        if ($this->getFrontendInput() == 'textarea') {
            if ($this->getIsWysiwygEnabled()) {
                $this->setIsHtmlAllowedOnFront(1);
            }
        }
        return parent::_beforeSave();
    }
    protected function _afterSave(){
        Mage::getSingleton('eav/config')->clear();
        return parent::_afterSave();
    }
    public function getIsGlobal(){
        return $this->_getData('is_global');
    }
    public function isScopeGlobal(){
        return $this->getIsGlobal() == self::SCOPE_GLOBAL;
    }
    public function isScopeWebsite(){
        return $this->getIsGlobal() == self::SCOPE_WEBSITE;
    }
    public function isScopeStore(){
        return !$this->isScopeGlobal() && !$this->isScopeWebsite();
    }
    public function getStoreId(){
        $dataObject = $this->getDataObject();
        if ($dataObject) {
            return $dataObject->getStoreId();
        }
        return $this->getData('store_id');
    }
    public function getSourceModel(){
        $model = $this->getData('source_model');
        if (empty($model)) {
            if ($this->getBackendType() == 'int' && $this->getFrontendInput() == 'select') {
                return $this->_getDefaultSourceModel();
            }
        }
        return $model;
    }
    public function getFrontendLabel(){
        return $this->_getData('frontend_label');
    }
    protected function _getLabelForStore(){
        return $this->getFrontendLabel();
    }
    public static function initLabels($storeId = null){
        if (is_null(self::$_labels)) {
            if (is_null($storeId)) {
                $storeId = Mage::app()->getStore()->getId();
            }
            $attributeLabels = array();
            $attributes = Mage::getResourceSingleton('catalog/product')->getAttributesByCode();
            foreach ($attributes as $attribute) {
                if (strlen($attribute->getData('frontend_label')) > 0) {
                    $attributeLabels[] = $attribute->getData('frontend_label');
                }
            }
            self::$_labels = Mage::app()->getTranslator()->getResource()->getTranslationArrayByStrings($attributeLabels, $storeId);
        }
    }
    public function _getDefaultSourceModel(){
        return 'eav/entity_attribute_source_table';
    }
}

app/code/local/Easylife/News/Model/Resource/Attribute.php - das Attribut Ressourcenmodell

<?php
class Easylife_News_Model_Resource_Attribute
    extends Mage_Eav_Model_Resource_Entity_Attribute {
    protected  function _afterSave(Mage_Core_Model_Abstract $object){
        $setup       = Mage::getModel('eav/entity_setup', 'core_write');
        $entityType  = $object->getEntityTypeId();
        $setId       = $setup->getDefaultAttributeSetId($entityType);
        $groupId     = $setup->getDefaultAttributeGroupId($entityType);
        $attributeId = $object->getId();
        $sortOrder   = $object->getPosition();

        $setup->addAttributeToGroup($entityType, $setId, $groupId, $attributeId, $sortOrder);
        return parent::_afterSave($object);
    }
}

app/code/local/Easylife/News/Model/Resource/Eav/Attribute.php - das Attribut EAV-Ressourcenmodell

<?php
class Easylife_News_Model_Resource_Eav_Attribute
    extends Mage_Eav_Model_Entity_Attribute {
    const MODULE_NAME   = 'Easylife_News';
    const ENTITY        = 'easylife_news_eav_attribute';
    protected $_eventPrefix = 'easylife_news_entity_attribute';
    protected $_eventObject = 'attribute';
    static protected $_labels = null;
    protected function _construct() {
        $this->_init('easylife_news/attribute');
    }
    public function isScopeStore() {
        return $this->getIsGlobal() == Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE;
    }
    public function isScopeWebsite() {
        return $this->getIsGlobal() == Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE;
    }
    public function isScopeGlobal() {
        return (!$this->isScopeStore() && !$this->isScopeWebsite());
    }
    public function getBackendTypeByInput($type) {
        switch ($type){
            case 'file':
                //intentional fallthrough
            case 'image':
                return 'varchar';
                break;
            default:
                return parent::getBackendTypeByInput($type);
            break;
        }
    }
    protected function _beforeDelete(){
        if (!$this->getIsUserDefined()){
            throw new Mage_Core_Exception(Mage::helper('easylife_news')->__('This attribute is not deletable'));
        }
        return parent::_beforeDelete();
    }
}

app/code/local/Easylife/News/Model/Resource/Article/Collection.php - Attributsammlungsmodell

<?php
class Easylife_News_Model_Resource_Article_Attribute_Collection
    extends Mage_Eav_Model_Resource_Entity_Attribute_Collection {
    protected function _initSelect() {
            $this->getSelect()->from(array('main_table' => $this->getResource()->getMainTable()))
                ->where('main_table.entity_type_id=?', Mage::getModel('eav/entity')->setType('easylife_news_article')->getTypeId())
                ->join(
                    array('additional_table' => $this->getTable('easylife_news/eav_attribute')),
                    'additional_table.attribute_id=main_table.attribute_id'
                );
        return $this;
    }
    public function setEntityTypeFilter($typeId) {
        return $this;
    }
    public function addVisibleFilter() {
        return $this->addFieldToFilter('additional_table.is_visible', 1);
    }
    public function addEditableFilter() {
        return $this->addFieldToFilter('additional_table.is_editable', 1);
    }
}

app/code/local/Easylife/News/Model/Resource/Setup.php - das Setup-Ressourcenmodell - zum Hinzufügen der Entitäten und Attribute:

<?php
class Easylife_News_Model_Resource_Setup
    extends Mage_Catalog_Model_Resource_Setup {
    public function getDefaultEntities(){
    $entities = array();
        $entities['easylife_news_article'] = array(
            'entity_model'                  => 'easylife_news/article',
            'attribute_model'               => 'easylife_news/resource_eav_attribute',
            'table'                         => 'easylife_news/article',
            'additional_attribute_table'    => 'easylife_news/eav_attribute',
            'entity_attribute_collection'   => 'easylife_news/article_attribute_collection',
            'attributes'        => array(
                    'title' => array(
                        'group'          => 'General',
                        'type'           => 'varchar',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Title',
                        'input'          => 'text',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '1',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '10',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'short_description' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Short description',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '1',
                        'user_defined'   => true,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '20',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'description' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Description',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '1',
                        'user_defined'   => true,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '30',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '1',
                    ),
                    'publish_date' => array(
                        'group'          => 'General',
                        'type'           => 'datetime',
                        'backend'        => 'eav/entity_attribute_backend_datetime',
                        'frontend'       => '',
                        'label'          => 'Publish Date',
                        'input'          => 'date',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_GLOBAL,
                        'required'       => '1',
                        'user_defined'   => true,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '40',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'status' => array(
                        'group'          => 'General',
                        'type'           => 'int',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Enabled',
                        'input'          => 'select',
                        'source'         => 'eav/entity_attribute_source_boolean',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '50',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'url_key' => array(
                        'group'          => 'General',
                        'type'           => 'varchar',
                        'backend'        => 'easylife_news/article_attribute_backend_urlkey',
                        'frontend'       => '',
                        'label'          => 'URL key',
                        'input'          => 'text',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '60',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'in_rss' => array(
                        'group'          => 'General',
                        'type'           => 'int',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'In RSS',
                        'input'          => 'select',
                        'source'         => 'eav/entity_attribute_source_boolean',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '70',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'meta_title' => array(
                        'group'          => 'General',
                        'type'           => 'varchar',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Meta title',
                        'input'          => 'text',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '80',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'meta_keywords' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Meta keywords',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '90',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),
                    'meta_description' => array(
                        'group'          => 'General',
                        'type'           => 'text',
                        'backend'        => '',
                        'frontend'       => '',
                        'label'          => 'Meta description',
                        'input'          => 'textarea',
                        'source'         => '',
                        'global'         => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_STORE,
                        'required'       => '',
                        'user_defined'   => false,
                        'default'        => '',
                        'unique'         => false,
                        'position'       => '100',
                        'note'           => '',
                        'visible'        => '1',
                        'wysiwyg_enabled'=> '0',
                    ),

                )
        );
        return $entities;
    }
}

app/code/local/Easylife/News/Model/Article/Attribute/Backend/File.php - Backend für Dateiattribute, wenn Sie eines hinzufügen möchten

<?php
class Easylife_News_Model_Article_Attribute_Backend_File
    extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract {
    public function afterSave($object){
        $value = $object->getData($this->getAttribute()->getName());

        if (is_array($value) && !empty($value['delete'])) {
            $object->setData($this->getAttribute()->getName(), '');
            $this->getAttribute()->getEntity()
                ->saveAttribute($object, $this->getAttribute()->getName());
            return;
        }

        $path = Mage::helper('easylife_news/article')->getFileBaseDir();

        try {
            $uploader = new Varien_File_Uploader($this->getAttribute()->getName());
            //set allowed file extensions if you need
            //$uploader->setAllowedExtensions(array('mp4', 'mov', 'f4v', 'flv', '3gp', '3g2', 'mp3', 'aac', 'm4a', 'swf'));
            $uploader->setAllowRenameFiles(true);
            $uploader->setFilesDispersion(true);
            $result = $uploader->save($path);
            $object->setData($this->getAttribute()->getName(), $result['file']);
            $this->getAttribute()->getEntity()->saveAttribute($object, $this->getAttribute()->getName());
        } catch (Exception $e) {
            if ($e->getCode() != 666){
                //throw $e;
            }
            return;
        }
    }
}

app/code/local/Easylife/News/Model/Article/Attribute/Backend/Image.php - Backend für Bildattribute, wenn Sie eines hinzufügen möchten

<?php
class Easylife_News_Model_Article_Attribute_Backend_Image
    extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract {
    public function afterSave($object){
        $value = $object->getData($this->getAttribute()->getName());

        if (is_array($value) && !empty($value['delete'])) {
            $object->setData($this->getAttribute()->getName(), '');
            $this->getAttribute()->getEntity()
                ->saveAttribute($object, $this->getAttribute()->getName());
            return;
        }

        $path = Mage::helper('easylife_news/article_image')->getImageBaseDir();

        try {
            $uploader = new Varien_File_Uploader($this->getAttribute()->getName());
            $uploader->setAllowRenameFiles(true);
            $uploader->setFilesDispersion(true);
            $result = $uploader->save($path);
            $object->setData($this->getAttribute()->getName(), $result['file']);
            $this->getAttribute()->getEntity()->saveAttribute($object, $this->getAttribute()->getName());
        } catch (Exception $e) {
            if ($e->getCode() != 666){
                //throw $e;
            }
            return;
        }
    }
}

app/code/local/Easylife/News/Model/Article/Attribute/Backend/Urlkey.php - Backend für URL-Schlüsselattribut

<?php
class Easylife_News_Model_Article_Attribute_Backend_Urlkey
    extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract {
    public function beforeSave($object) {
        $attributeName = $this->getAttribute()->getName();
        $urlKey = $object->getData($attributeName);
        if ($urlKey == '') {
            $urlKey = $object->getTitle();
        }
        $urlKey = $this->formatUrlKey($urlKey);
        $validKey = false;
        while (!$validKey) {
            $entityId = Mage::getResourceModel('easylife_news/article')->checkUrlKey($urlKey, $object->getStoreId(), false);
            if ($entityId == $object->getId() || empty($entityId)) {
                $validKey = true;
            }
            else {
                $parts = explode('-', $urlKey);
                $last = $parts[count($parts) - 1];
                if (!is_numeric($last)){
                    $urlKey = $urlKey.'-1';
                }
                else {
                    $suffix = '-'.($last + 1);
                    unset($parts[count($parts) - 1]);
                    $urlKey = implode('-', $parts).$suffix;
                }
            }
        }
        $object->setData($attributeName, $urlKey);
        return $this;
    }
    public function formatUrlKey($str) {
        $urlKey = preg_replace('#[^0-9a-z]+#i', '-', Mage::helper('catalog/product_url')->format($str));
        $urlKey = strtolower($urlKey);
        $urlKey = trim($urlKey, '-');
        return $urlKey;
    }
}

app/code/local/Easylife/News/Model/Adminhtml/Search/Article.php - Modell, das die globale Admin-Suche abwickelt

<?php
class Easylife_News_Model_Adminhtml_Search_Article
    extends Varien_Object {
    public function load(){
        $arr = array();
        if (!$this->hasStart() || !$this->hasLimit() || !$this->hasQuery()) {
            $this->setResults($arr);
            return $this;
        }
        $collection = Mage::getResourceModel('easylife_news/article_collection')
            ->addAttributeToFilter('title', array('like' => $this->getQuery().'%'))
            ->setCurPage($this->getStart())
            ->setPageSize($this->getLimit())
            ->load();
        foreach ($collection->getItems() as $article) {
            $arr[] = array(
                'id'=> 'article/1/'.$article->getId(),
                'type'  => Mage::helper('easylife_news')->__('Article'),
                'name'  => $article->getTitle(),
                'description'   => $article->getTitle(),
                'url' => Mage::helper('adminhtml')->getUrl('*/news_article/edit', array('id'=>$article->getId())),
            );
        }
        $this->setResults($arr);
        return $this;
    }
}

Wir sind mit den Modellen fertig. Gehen wir weiter zu den Blöcken .
app/code/local/Easylife/News/Block/Rss.php- Der allgemeine RSS-Block

<?php 
class Easylife_News_Block_Rss
    extends Mage_Core_Block_Template {
    protected $_feeds = array();
    public function addFeed($label, $url, $prepare = false) {
        $link = ($prepare ? $this->getUrl($url) : $url);
        $feed = new Varien_Object();
        $feed->setLabel($label);
        $feed->setUrl($link);
        $this->_feeds[$link] = $feed;
        return $this;
    }
    public function getFeeds() {
        return $this->_feeds;
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article.php - der Hauptartikelblock

<?php
class Easylife_News_Block_Adminhtml_Article
    extends Mage_Adminhtml_Block_Widget_Grid_Container {
    public function __construct(){
        $this->_controller         = 'adminhtml_article';
        $this->_blockGroup         = 'easylife_news';
        parent::__construct();
        $this->_headerText         = Mage::helper('easylife_news')->__('Article');
        $this->_updateButton('add', 'label', Mage::helper('easylife_news')->__('Add Article'));

        $this->setTemplate('easylife_news/grid.phtml');
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article/Edit.php - das Admin-Bearbeitungsformular

<?php
class Easylife_News_Block_Adminhtml_Article_Edit
    extends Mage_Adminhtml_Block_Widget_Form_Container {
    public function __construct(){
        parent::__construct();
        $this->_blockGroup = 'easylife_news';
        $this->_controller = 'adminhtml_article';
        $this->_updateButton('save', 'label', Mage::helper('easylife_news')->__('Save Article'));
        $this->_updateButton('delete', 'label', Mage::helper('easylife_news')->__('Delete Article'));
        $this->_addButton('saveandcontinue', array(
            'label'        => Mage::helper('easylife_news')->__('Save And Continue Edit'),
            'onclick'    => 'saveAndContinueEdit()',
            'class'        => 'save',
        ), -100);
        $this->_formScripts[] = "
            function saveAndContinueEdit(){
                editForm.submit($('edit_form').action+'back/edit/');
            }
        ";
    }
    public function getHeaderText(){
        if( Mage::registry('current_article') && Mage::registry('current_article')->getId() ) {
            return Mage::helper('easylife_news')->__("Edit Article '%s'", $this->escapeHtml(Mage::registry('current_article')->getTitle()));
        }
        else {
            return Mage::helper('easylife_news')->__('Add Article');
        }
    }
}

Sieht aus wie es einen Teil 3 geben wird .....

Teil 3.
app/code/local/Easylife/News/Block/Adminhtml/Article/Grid.php - das Admin-Grid

<?php
class Easylife_News_Block_Adminhtml_Article_Grid
    extends Mage_Adminhtml_Block_Widget_Grid {
    public function __construct(){
        parent::__construct();
        $this->setId('articleGrid');
        $this->setDefaultSort('entity_id');
        $this->setDefaultDir('ASC');
        $this->setSaveParametersInSession(true);
        $this->setUseAjax(true);
    }
    protected function _prepareCollection(){
        $collection = Mage::getModel('easylife_news/article')->getCollection()
            ->addAttributeToSelect('publish_date')
            ->addAttributeToSelect('status')
            ->addAttributeToSelect('url_key');
        $adminStore = Mage_Core_Model_App::ADMIN_STORE_ID;
        $store = $this->_getStore();
        $collection->joinAttribute('title', 'easylife_news_article/title', 'entity_id', null, 'inner', $adminStore);
        if ($store->getId()) {
            $collection->joinAttribute('easylife_news_article_title', 'easylife_news_article/title', 'entity_id', null, 'inner', $store->getId());
        }

        $this->setCollection($collection);
        return parent::_prepareCollection();
    }
    protected function _prepareColumns(){
        $this->addColumn('entity_id', array(
            'header'    => Mage::helper('easylife_news')->__('Id'),
            'index'        => 'entity_id',
            'type'        => 'number'
        ));
        $this->addColumn('title', array(
            'header'    => Mage::helper('easylife_news')->__('Title'),
            'align'     => 'left',
            'index'     => 'title',
        ));
        if ($this->_getStore()->getId()){
            $this->addColumn('easylife_news_article_title', array(
                'header'    => Mage::helper('easylife_news')->__('Title in %s', $this->_getStore()->getName()),
                'align'     => 'left',
                'index'     => 'easylife_news_article_title',
            ));
        }

        $this->addColumn('status', array(
            'header'    => Mage::helper('easylife_news')->__('Status'),
            'index'        => 'status',
            'type'        => 'options',
            'options'    => array(
                '1' => Mage::helper('easylife_news')->__('Enabled'),
                '0' => Mage::helper('easylife_news')->__('Disabled'),
            )
        ));
        $this->addColumn('publish_date', array(
            'header'=> Mage::helper('easylife_news')->__('Publish Date'),
            'index' => 'publish_date',
            'type'=> 'date',

        ));
        $this->addColumn('url_key', array(
            'header' => Mage::helper('easylife_news')->__('URL key'),
            'index'  => 'url_key',
        ));
        $this->addColumn('created_at', array(
            'header'    => Mage::helper('easylife_news')->__('Created at'),
            'index'     => 'created_at',
            'width'     => '120px',
            'type'      => 'datetime',
        ));
        $this->addColumn('updated_at', array(
            'header'    => Mage::helper('easylife_news')->__('Updated at'),
            'index'     => 'updated_at',
            'width'     => '120px',
            'type'      => 'datetime',
        ));
        $this->addColumn('action',
            array(
                'header'=>  Mage::helper('easylife_news')->__('Action'),
                'width' => '100',
                'type'  => 'action',
                'getter'=> 'getId',
                'actions'   => array(
                    array(
                        'caption'   => Mage::helper('easylife_news')->__('Edit'),
                        'url'   => array('base'=> '*/*/edit'),
                        'field' => 'id'
                    )
                ),
                'filter'=> false,
                'is_system'    => true,
                'sortable'  => false,
        ));
        $this->addExportType('*/*/exportCsv', Mage::helper('easylife_news')->__('CSV'));
        $this->addExportType('*/*/exportExcel', Mage::helper('easylife_news')->__('Excel'));
        $this->addExportType('*/*/exportXml', Mage::helper('easylife_news')->__('XML'));
        return parent::_prepareColumns();
    }

    protected function _getStore(){
        $storeId = (int) $this->getRequest()->getParam('store', 0);
        return Mage::app()->getStore($storeId);
    }

    protected function _prepareMassaction(){
        $this->setMassactionIdField('entity_id');
        $this->getMassactionBlock()->setFormFieldName('article');
        $this->getMassactionBlock()->addItem('delete', array(
            'label'=> Mage::helper('easylife_news')->__('Delete'),
            'url'  => $this->getUrl('*/*/massDelete'),
            'confirm'  => Mage::helper('easylife_news')->__('Are you sure?')
        ));
        $this->getMassactionBlock()->addItem('status', array(
            'label'=> Mage::helper('easylife_news')->__('Change status'),
            'url'  => $this->getUrl('*/*/massStatus', array('_current'=>true)),
            'additional' => array(
                'status' => array(
                        'name' => 'status',
                        'type' => 'select',
                        'class' => 'required-entry',
                        'label' => Mage::helper('easylife_news')->__('Status'),
                        'values' => array(
                                '1' => Mage::helper('easylife_news')->__('Enabled'),
                                '0' => Mage::helper('easylife_news')->__('Disabled'),
                        )
                )
            )
        ));
        return $this;
    }

    public function getRowUrl($row){
        return $this->getUrl('*/*/edit', array('id' => $row->getId()));
    }
    public function getGridUrl(){
        return $this->getUrl('*/*/grid', array('_current'=>true));
    }
}

app/code/local/Easylife/News/Block/Adminhtml/Article/Edit/Tabs.php - die Registerkarten im Formular zum Hinzufügen / Bearbeiten

<?php
class Easylife_News_Block_Adminhtml_Article_Edit_Tabs
    extends Mage_Adminhtml_Block_Widget_Tabs {
    public function __construct() {
        parent::__construct();
        $this->setId('article_info_tabs');
        $this->setDestElementId('edit_form');
        $this->setTitle(Mage::helper('easylife_news')->__('Article Information'));
    }
    protected function _prepareLayout(){
        $article = $this->getArticle();
        $entity = Mage::getModel('eav/entity_type')->load('easylife_news_article', 'entity_type_code');
        $attributes = Mage::getResourceModel('eav/entity_attribute_collection')
                ->setEntityTypeFilter($entity->getEntityTypeId());
        $attributes->addFieldToFilter('attribute_code', array('nin'=>array('meta_title', 'meta_description', 'meta_keywords')));
        $attributes->getSelect()->order('additional_table.position', 'ASC');

        $this->addTab('info', array(
            'label'     => Mage::helper('easylife_news')->__('Article Information'),
            'content'   => $this->getLayout()->createBlock('easylife_news/adminhtml_article_edit_tab_attributes')
                            ->setAttributes($attributes)
                            ->toHtml(),
        ));
        $seoAttributes = Mage::getResourceModel('eav/entity_attribute_collection')
                ->setEntityTypeFilter($entity->getEntityTypeId())
                ->addFieldToFilter('attribute_code', array('in'=>array('meta_title', 'meta_description', 'meta_keywords')));
        $seoAttributes->getSelect()->order('additional_table.position', 'ASC');

        $this->addTab('meta', array(
            'label'     => Mage::helper('easylife_news')->__('Meta'),
            'title'     => Mage::helper('easylife_news')->__('Meta'),
            'content'   => $this->getLayout()->createBlock('easylife_news/adminhtml_article_edit_tab_attributes')
                            ->setAttributes($seoAttributes)
                            ->toHtml(),
        ));
        return parent::_beforeToHtml();
    }
    public function getArticle(){
        return Mage::registry('current_article');
    }
}