Question

I have created a custom module that creates a custom Database table. I have been following Alan Storm’s tutorials http://alanstorm.com/magento_setup_resources and http://alanstorm.com/magento_models_orm in order to create custom Database tables.

My module entry gets showed up in core_resource table but the actual doesn’t get showed up.

This is my config.xml code

<?xml version="1.0"?>
<config>
 <modules>
    <Ajzele_SimpleModel>
        <version>0.0.1</version>
    </Ajzele_SimpleModel>
</modules>
<global>

  <models>
   <simplemodel>
     <class>Ajzele_SimpleModel_Model</class>
     <resourceModel>simplemodel_mysql4</resourceModel>      
   </simplemodel>

   <simplemodel_mysql4>
     <class>Ajzele_SimpleModel_Model_Mysql4</class>
      <entities>
          <simplemodel>
                  <table>simplemodel</table>
           </simplemodel>
       </entities>                
   </simplemodel_mysql4>  

 </models>

 <resources>
        <simplemodel_setup>
            <setup>
                <module>Ajzele_SimpleModel</module>
       <class>Ajzele_SimpleModel_Model_Mysql4_Setup</class>
            </setup>

            <connection>
                <use>core_setup</use>
            </connection>

        </simplemodel_setup>

        <simplemodel_read>
            <connection>
                <use>core_read</use>
            </connection>
        </simplemodel_read>  

        <simplemodel_write>
            <connection>
                <use>core_write</use>
            </connection>
        </simplemodel_write>  

</resources>        
</global>    
    </config>

And my Model file Structure is

   Model
     SimpleModel.php
     Mysql4
       SimpleModel.php
       Setup.php
       SimpleModel
          Collection.php

Here’s teh contents of my sql/simplemodel_setup/mysql4-install-0.0.1.php

     <?php

    $installer = $this;

   $installer->startSetup();

   $baseTableName = 'simplemodel';

   $sql = "
   SET FOREIGN_KEY_CHECKS=0;
   -- ----------------------------
   -- Table structure for `simplemodel`
   -- ----------------------------
   DROP TABLE IF EXISTS {$this->getTable($baseTableName)};
   CREATE TABLE {$this->getTable($baseTableName)} (
    `simplemodel_id` int(11) NOT NULL AUTO_INCREMENT,
    `field1` varchar(255) DEFAULT NULL,
    `field2` varchar(255) DEFAULT NULL,
     PRIMARY KEY (`simplemodel_id`)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
    ";

    $installer->run($sql);

    $installer->endSetup();

I have tried various debugging methods, but I get neither any exception nor an error. What should I do in order to get my table actually show up in Database?

Answer 1

I recommend you put Magento in developer mode and debug the trace of XML to check the XML. To configure Magento in developer Mode you should put the variable MAGE_IS_DEVELOPER_MODE in the definition of the virtual host or in the .htaccess of the Magento root.
For example in de virtual host:

<VirtualHost *:80>
   DocumentRoot "C:\Program Files\Zend\Apache2/htdocs/local.pruebas.com"
   ServerName local.pruebas.com
   DirectoryIndex index.html index.php index.htm
   SetEnv MAGE_IS_DEVELOPER_MODE "1"    
   <Directory "C:\Program Files\Zend\Apache2/htdocs/local.pruebas.com">
       AllowOverride All
       Options All
       Order allow,deny
       Allow from all
   </Directory>

later you should modify index.php in the line 66 and put

if (isset($_SERVER['MAGE_IS_DEVELOPER_MODE'])) {
Varien_Profiler::enable();
    Mage::setIsDeveloperMode(true);
    ini_set('display_errors', 1);
 }

Varien_Profiler::enable(); and ini_set(‘display_errors’, 1); is out of conditional i think for mistake.
Now, you can´t see the simplexml_load_string() error whent have an error in the XML:

Warning: simplexml_load_string() [function.simplexml-load-string]: Entity: line 4: parser error : error parsing attribute name in C:\Program Files\Zend\Apache2\htdocs\local.pruebas.com\lib\Varien\Simplexml\Config.php on line 510……

then, its time to debug
1.first: go to app/etc/Ajzele_SimpleModel and force and error, for example:

<config>
     <modules>
        <Ajzele_SimpleModel <!--remove a '>' to force an error-->
           <active>true</active>
           <codePool>local</codePool>
        </Ajzele_SimpleModel>
     </modules>
</config>

you should see the error.

2.second: go to app/code/local/Ajzele/SimpleModel/etc/config.xml and retry the process

<config>
    <modules>
      <Ajzele_SimpleModel <!-- remove a '>' to verify that you load correctly your extension 
          <version>0.0.1</version>
      </Ajzele_SimpleModel>
    </modules>
    <global>

      <models>
          <simplemodel>
               <class>Ajzele_SimpleModel_Model</class>
                  <resourceModel>simplemodel_mysql4</resourceModel>      
          </simplemodel>
      </models>
     </global>
 </config>

if you don´t have simple xml error in this point you don´t load correctly your extension, and the next step is debug and debug config.xml

This isn´t a concrete answere, but i think that you can see whith the solution with this.
thanks,sorry for my inglish