Your config.xml has to be in this way.
<?xml version="1.0"?>
<config>
<modules>
<[Namespace]_[Module]>
<version>0.1.0</version>
</[Namespace]_[Module]>
</modules>
<frontend>
<routers>
<[module]>
<use>standard</use>
<args>
<module>[Namespace]_[Module]</module>
<frontName>[module]</frontName>
</args>
</[module]>
</routers>
<layout>
<updates>
<[module]>
<file>[module].xml</file>
</[module]>
</updates>
</layout>
</frontend>
<global>
<models>
<[module]>
<class>[Namespace]_[Module]_Model</class>
<resourceModel>[module]_mysql4</resourceModel>
</[module]>
<[module]_mysql4>
<class>[Namespace]_[Module]_Model_Mysql4</class>
<entities>
<[module]>
<table>[module]</table>
</[module]>
</entities>
</[module]_mysql4>
</models>
<resources>
<[module]_setup>
<setup>
<module>[Namespace]_[Module]</module>
</setup>
<connection>
<use>core_setup</use>
</connection>
</[module]_setup>
<[module]_write>
<connection>
<use>core_write</use>
</connection>
</[module]_write>
<[module]_read>
<connection>
<use>core_read</use>
</connection>
</[module]_read>
</resources>
<blocks>
<[module]>
<class>[Namespace]_[Module]_Block</class>
</[module]>
</blocks>
<helpers>
<[module]>
<class>[Namespace]_[Module]_Helper</class>
</[module]>
</helpers>
</global>
</config>
And have install-0.0.1.php file like this :
/** @var $installer Mage_Core_Model_Resource_Setup */
$installer = $this;
$installer->startSetup();
$table = $installer->getConnection()
->newTable($installer->getTable('dsnews/table_news'))
->addColumn(
'news_id', Varien_Db_Ddl_Table::TYPE_INTEGER, null,
array(
'identity' => true,
'unsigned' => true,
'nullable' => false,
'primary' => true,
), 'Unique identifier'
)
->addColumn(
'title', Varien_Db_Ddl_Table::TYPE_TEXT, 100, array(), 'News title'
)
->addColumn(
'content', Varien_Db_Ddl_Table::TYPE_TEXT, null, array(), 'News content'
)
->addColumn(
'author', Varien_Db_Ddl_Table::TYPE_TEXT, 100, array(), 'News author'
);
if (!$installer->getConnection()->isTableExists($table->getName())) {
$installer->getConnection()->createTable($table);
}
$installer->endSetup();
**I hope that this will help you.**
Your `config.xml` has to be in this way.
<?xml version="1.0"?>
<config>
<modules>
<[Namespace]_[Module]>
<version>0.1.0</version>
</[Namespace]_[Module]>
</modules>
<frontend>
<routers>
<[module]>
<use>standard</use>
<args>
<module>[Namespace]_[Module]</module>
<frontName>[module]</frontName>
</args>
</[module]>
</routers>
<layout>
<updates>
<[module]>
<file>[module].xml</file>
</[module]>
</updates>
</layout>
</frontend>
<global>
<models>
<[module]>
<class>[Namespace]_[Module]_Model</class>
<resourceModel>[module]_mysql4</resourceModel>
</[module]>
<[module]_mysql4>
<class>[Namespace]_[Module]_Model_Mysql4</class>
<entities>
<[module]>
<table>[module]</table>
</[module]>
</entities>
</[module]_mysql4>
</models>
<resources>
<[module]_setup>
<setup>
<module>[Namespace]_[Module]</module>
</setup>
<connection>
<use>core_setup</use>
</connection>
</[module]_setup>
<[module]_write>
<connection>
<use>core_write</use>
</connection>
</[module]_write>
<[module]_read>
<connection>
<use>core_read</use>
</connection>
</[module]_read>
</resources>
<blocks>
<[module]>
<class>[Namespace]_[Module]_Block</class>
</[module]>
</blocks>
<helpers>
<[module]>
<class>[Namespace]_[Module]_Helper</class>
</[module]>
</helpers>
</global>
</config>
Check that did you extends resource collection or not. If No, then it has to be in this way.
<?php
class <Namespace>_<Module>_Model_Mysql4_<Module>_Collection extends Mage_Core_Model_Mysql4_Collection_Abstract
{
public function _construct()
{
//parent::__construct();
$this->_init('<module>/<module>');
}
}
Check this link for more details.
http://www.magentocommerce.com/wiki/5_-_modules_and_development/0_-_module_development_in_magento/custom_module_with_custom_database_table
