在Magento中加载资源模型 - 无法打开文件

Question

I am trying to ues a resource model and get the following when I try to load it:

Warning: include(Mage\Core\Resource\Model.php): failed to open stream: No such file or directory in C:\xampp\htdocs\magento\lib\Varien\Autoload.php on line 93

My controller action looks like:

$blogpost = Mage::getModel("test/blogpost");
$blogpost->load(1);

My config.xml looks like:

<?xml version="1.0"?>
<config>
  <modules>
    <Lock_Test>
      <version>1.0.0</version>
    </Lock_Test>
  </modules>
    <global>
        <models>
            <test>
                <class>Lock_Test_Model</class>
                <resourceModel>test_resource</resourceModel>
            </test>
            <test_resource>
                <class>Lock_Test_Model_Resource</class>
            </test_resource>
        </models>
    </global>
  <frontend>
    <routers>
      <lock_router>
        <use>standard</use>
        <args>
          <module>Lock_Test</module>
          <frontName>test</frontName>
        </args>
      </lock_router>
    </routers>
  </frontend>
</config>

I have no idea why it is trying to load from the Mage directory. I can't see anything wrong with my config file.

I'm loosly following this tutorial, although I haven't created the entities and table name above, I would think it should still find my Resource Model.

Please help!

app\code\local\Lock\Test\Model\Blogpost.php look like:

<?php
    class Lock_Test_Model_Blogpost extends Mage_Core_Model_Abstract
    {
        protected function _construct()
        {
            $this->_init("test/blogpost");
        }
    }

app\code\local\Lock\Test\Model\Resource\Blogpost.php looks like:

<?php
    class Lock_Test_Model_Resource_Blogpost extends Mage_Core_Resource_Model
    {
        protected function _construct()
        {
            $this->_init("test/blogpost", "blogpost_id");
        }
    }

Answer 1

The problem is in your resource model

class Lock_Test_Model_Resource_Blogpost extends Mage_Core_Resource_Model

There is no such class as Mage_Core_Resource_Model, that is why Magento tries to find him in Mage\Core\Resource\Model.php. What you want to extend from is probably Mage_Core_Model_Resource_Db_Abstract.