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POmagento: create your own collection
 

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    <p>hope that everybody is doing well. I am new to magento. I am working on magento module. I want to use grid in Admin but i need to use collections. I have created a few collection and haven't got any success in accessing any of them successfully. I want to know where i am wrong. let me share my problem with you.</p> <p>my config file chunk</p> <pre><code>&lt;models&gt; &lt;exporter&gt; &lt;class&gt;World_Exporter_Model&lt;/class&gt; &lt;!-- need to create our own resource, cant just use core_mysql4 --&gt; &lt;resourceModel&gt;exporter_mysql4&lt;/resourceModel&gt; &lt;/exporter&gt; &lt;exporter_mysql4&gt; &lt;class&gt;World_Exporter_Model_Mysql4&lt;/class&gt; &lt;entities&gt; &lt;exporter&gt; &lt;table&gt;profiles&lt;/table&gt; &lt;/exporter&gt; &lt;/entities&gt; &lt;/exporter_mysql4&gt; &lt;/models&gt; </code></pre> <p>My model</p> <pre><code>class World_Exporter_Model_Mysql4_Profiles extends Mage_Core_Model_Mysql4_Abstract { public function _construct() { $this-&gt;_init('exporter/profiles', 'profile_id'); } } </code></pre> <p>And my collection</p> <pre><code> class World_Exporter_Model_Mysql4_Profiles_Collection extends Mage_Core_Model_Mysql4_Collection_Abstract { public function _construct(){ parent::_construct(); $this-&gt;_init('exporter/profiles'); } } </code></pre> <p>If you want to help me. I am great full. </p> <p>(Added After getting Answer)....</p> <pre><code> $model = Mage::getResourceModel('exporter/profiles'); // $model = Mage::getModel('exporter/profiles'); $collection = $model-&gt;getCollection(); </code></pre> <p>Fatal error: Call to undefined method World_Exporter_Model_Mysql4_Profiles::getCollection()</p> <pre><code> // $model = Mage::getResourceModel('exporter/profiles'); $model = Mage::getModel('exporter/profiles'); $collection = $model-&gt;getCollection(); </code></pre> <p>a:5:{i:0;s:47:Can't retrieve entity config: exporter/profiles";i:1;s:2542:</p> <p>#0 \app\code\core\Mage\Core\Model\Resource.php(272): Mage::throwException('Can't retrieve ...')</p> <p>#1 \app\code\core\Mage\Core\Model\Resource\Db\Abstract.php(284): Mage_Core_Model_Resource->getTableName('exporter/profil...')</p> <p>#2 \app\code\core\Mage\Core\Model\Resource\Db\Abstract.php(247): Mage_Core_Model_Resource_Db_Abstract->getTable('profiles')</p> <h1>But i do have the table "profiles" in db</h1> <p>I will appreciate your help…</p>
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