magento - Can't retrieve entity config

Question

I am creating a module (my first one, without tutorials) and have received the error

'Can't retrieve entity config'

after looking around various sites and trying different options, i've come to a stop. I assume from the full message:

Error in file: "/Users/myname/Sites/magentotest/app/code/local/Ps/Pref/sql/pref_setup/mysql4-install-0.1.0.php" - Can't retrieve entity config: pref/prefNewsSignUp

That the problem is with my config.xml and that I need to add an entity node somewhere containing something to do with mysql4.....but where I need to add that and what I need to put in that node remains a mystery to me at the moment. My config file is

<global>
    <model>
        <pref>
            <class>Ps_Pref_Models</class>
        </pref>
    </model>

    <resources>
        <pref_setup>
            <setup>
                <module>Ps_Pref</module>
                <class>Ps_Pref_Models_Resource_Setup</class>
            </setup>
        </pref_setup>
    </resources>
</global>

==============================EDIT================================

I have now gone back to the tutorial stage to try and understand where I am going wrong. this Alan Storm tutorial seems very similar to what i'm aiming for, but I still come across the same problem of "Can't retrieve entity config" (I have gone through all my config and var_dumped various options in IndexController, but cant get passed the problem, and this is not making any sense to me) I have left a couple of the var_dumps that I think will be useful and what they have returned (I hope this edit isn't too confusing)

FOLDER STRUCTURE

+Ps

-+Prefcentre

--+Model

---+Mysql4

----Preferences.php

---Preferences.php

--+controllers

---IndexController.php

--+etc

---config.xml

Ps/Prefcentre/Model/Mysql4/Preferences

class Ps_Prefcentre_Model_Mysql4_Preferences
extends Mage_Core_Model_Mysql4_Abstract
{
protected function _construct()
{
    $this->_init('prefcentre/preferences', 'prefcentre_id');
}
}

Ps/Prefcentre/Model/Preferences

class Ps_Prefcentre_Model_Preferences
extends Mage_Core_Model_Abstract
{
protected function _construct()
{
    $this->_init('prefcentre/preferences');
}
}

Ps/Prefcentre/IndexController

class Ps_Prefcentre_IndexController
extends Mage_Core_Controller_Front_Action
{
public function indexAction()
{
    $params = $this->getRequest()->getParams();
    $prefs = Mage::getModel('prefcentre/preferences');
    echo ("Loading the blogpost with an Id of " . $params['id']);
    $prefs->load($params['id']);//returns "Can't retrieve entity config"
//        $prefs->getData('title');//returns array(0)
    $data = $prefs->getData();
    var_dump($data);

//        $pref = Mage::getModel('prefcentre/preferences');
//        echo get_class($pref);//returns Ps_Prefcentre_Model_Preferences
}
}

Ps/Prefcentre/etc/config.xml

<config>
<global>
<!--....-->
    <models>
        <prefcentre>
            <class>Ps_Prefcentre_Model</class>
            <resourceModel>prefcentre_mysql4</resourceModel>
        </prefcentre>

        <prefcentre_mysql4>
            <class>Ps_Prefcentre_Model_Mysql4</class>
            <entities>
                <prefcentre>
                    <table>prefcentre</table>
                </prefcentre>
            </entities>
        </prefcentre_mysql4>  
    </models>
    <resources>
        <prefcentre_write>
            <connection>
                <use>core_write</use>
            </connection>
        </prefcentre_write>
        <prefcentre_read>
            <connection>
                <use>core_read</use>
            </connection>
        </prefcentre_read>
    </resources>
<!--....-->
</global>
</config>

score 8 · Accepted Answer

You are missing a table name reference. Somewhere you are specified a tablename using the handle pref/prefNewsSignUp and you have not provided the necessary xpath. Do you have a resource model node? Do you have the appropriate xpath and text under it?

<global>
    <model>
        <pref>
            <class>Ps_Pref_Models</class>
            <resourceModel>pref_resource</resourceModel>
        </pref>
        <pref_resource>
            <class>Ps_Pref_Models_Resource</class>
            <entities>
                <prefNewsSignUp><table>table_name</table></prefNewsSignUp>
            </entities>
        </pref_resource>
    </model>

score 2 · Accepted Answer

I had similar issue, and my solution was to replace the code below:

public function indexAction()
{
    $params = $this->getRequest()->getParams();
    $prefs = Mage::getModel('prefcentre/preferences');
    ....

for

public function indexAction()
{
    $params = $this->getRequest()->getParams();
    $prefs = Mage::getModel('ps_prefcentre/preferences');
    ....

That is it, by adding the model prefix I got it sorted.

score 1 · Accepted Answer

<model>
    <pref>
        <class>Ps_Pref_Models</class>
    </pref>
</model>

Shouldn' t it be :

<models>
    <pref>
        <class>Ps_Pref_Model</class>
    </pref>
</models>

magento - Can't retrieve entity config

3 回答 3

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