MAGENTO - Add data to custom module - database

Question

i am new in magento, i am developing a custom module to save some information for every logged client, but my problem is: i cant add data to my table, so this is what i already did:
config.xml
<?xml version="1.0"?>
<config>
<modules>
<Desing_ControlApp>
<version>0.1.0</version>
</Desing_ControlApp>
</modules>
<global>
<models>
<Desing_ControlApp>
<class>Desing_ControlApp_Model</class>
<resourceModel>Desing_ControlApp_mysql4</resourceModel>
</Desing_ControlApp>
<Desing_ControlApp_mysql4>
<class>Desing_ControlApp_Model_Mysql4</class>
<entities>
<Desing_ControlApp>
<table>Desing_ControlApp</table>
</Desing_ControlApp>
</entities>
</Desing_ControlApp_mysql4>
</models>
<helpers>
<controlapp>
<class>Desing_ControlApp_Helper</class>
</controlapp>
</helpers>
<blocks>
<controlapp>
<class>Desing_ControlApp_Block</class>
</controlapp>
</blocks>
<resources>
<controlapp_setup>
<setup>
<module>Desing_ControlApp</module>
</setup>
<connection>
<use>core_setup</use>
</connection>
</controlapp_setup>
<controlapp_write>
<connection>
<use>core_write</use>
</connection>
</controlapp_write>
<controlapp_read>
<connection>
<use>core_read</use>
</connection>
</controlapp_read>
</resources>
<events>
<controller_action_layout_load_before>
<observers>
<Desing_ControlApp>
<class>Desing_ControlApp/Observer</class>
<method>verificarApp</method>
</Desing_ControlApp>
</observers>
</controller_action_layout_load_before>
</events>
</global>
<admin>
<routers>
<controlapp>
<use>admin</use>
<args>
<module>Desing_ControlApp</module>
<frontName>admin_controlapp</frontName>
</args>
</controlapp>
</routers>
</admin>
<adminhtml>
<menu>
<controlapp module="controlapp">
<title>ControlApp</title>
<sort_order>100</sort_order>
<children>
<controlappbackend module="controlapp">
<title>GENERAL CODE</title>
<sort_order>0</sort_order>
<action>admin_controlapp/adminhtml_controlappbackend</action>
</controlappbackend>
</children>
</controlapp>
</menu>
<acl>
<resources>
<all>
<title>Allow Everything</title>
</all>
<admin>
<children>
<controlapp translate="title" module="controlapp">
<title>ControlApp</title>
<sort_order>1000</sort_order>
<children>
<controlappbackend translate="title">
<title>GENERAL CODE</title>
</controlappbackend>
</children>
</controlapp>
</children>
</admin>
</resources>
</acl>
<layout>
<updates>
<controlapp>
<file>controlapp.xml</file>
</controlapp>
</updates>
</layout>
</adminhtml>
</config>
i add the table here in mysql4_install-0.1.0.php
<?php
$installer = $this;
$installer->startSetup();
$sql=<<<SQLTEXT
create table desinglog(
log_id int not null auto_increment,
cliente_id smallint(8) unsigned default '0',
token varchar(255) default'0',
user varchar(255) default'0',
primary key(log_id));
SQLTEXT;
$installer->run($sql);
//demo
//Mage::getModel('core/url_rewrite')->setId(null);
//demo
$installer->endSetup();
so i have an observer and i want to insert data from there, i fonud a snipet to do it whith
$model = Mage::getModel('Desing_ControlApp/Desing_ControlApp')->....
but i cant access, every time the page show me "page is not working", so what i have to use instead Desing_ControlApp/Desing_ControlApp or i miss to write something? i cant found a good tutorial about these to. i found something here https://magento.stackexchange.com/questions/9863/magento-connect-to-database-from-a-module but no results.

Answer 1

"i cant add data to my table" - the problem was table name is mismatching, you didn't call correct table name in config.
in Config <table>Desing_ControlApp</table>
<entities>
<Desing_ControlApp>
<table>Desing_ControlApp</table><!-- table name mismatch-->
</Desing_ControlApp>
</entities>
but in setup file mysql4_install-0.1.0.php create table desinglog(
now change the config to call correct table then clear cache