Simple local extension model extend problem

Question

I wan't to extend local extension model with this existing config.xml:

<config>
 <modules>
 <Smartwave_All>
 <version>1.0.0</version>
 </Smartwave_All>
 </modules> 
 <global>
 ...
 <models>
 <core>
 <rewrite>
 <layout>Smartwave_All_Model_Core_Layout</layout>
 </rewrite>
 </core>
 <all>
 <class>Smartwave_All_Model</class>
 </all>
 </models>
 ...
 </global>
</config>

This is the file which I wan't to extend with my public function (app/code/local/Smartwave/All/Model/Core/Layout.php):

<?php 
class Smartwave_All_Model_Core_Layout extends Mage_Core_Model_Layout
{ ...

Ok, now here are my extension files(app/etc/modules/SampleCompany_Test.xml):

<?xml version="1.0"?>
<config>
 <modules>
 <SampleCompany_Test>
 <active>true</active>
 <codePool>local</codePool>
 <depends>
 <Smartwave_All/>
 </depends>
 </SampleCompany_Test>
 </modules>
</config>

And my config.xml (app/code/local/SampleCompany/Test/etc/config.xml):

<?xml version="1.0"?>
<config>
 <modules>
 <SampleCompany_Test>
 <version>0.1</version>
 </SampleCompany_Test>
 </modules>
 <global>
 <models>
 <smartwave_all>
 <rewrite>
 <core_layout>SampleCompany_Test_Model_Layout</core_layout>
 </rewrite>
 </smartwave_all>
 </models>
 </global>
</config>

And of course my Layout.php (app/code/local/SampleCompany/Test/Model/Layout.php):

class SampleCompany_Test_Model_Layout extends Smartwave_All_Model_Core_Layout
{
 public function myNewFunction()
 {
 ...
 }
}

I can't get this to work. Main problem is because Smartwave All is rewriting Mage/Core/Model/Layout.php core file and it is in conflict with my other extension which do the same (rewrites Layout.php). Now I wan't to extend Smartwave All instead of core Layout.php.

Thanks for any suggestions on this.

Answer 1

The problem here is that you're declaring your Smartwave_All models like this:

<all>
 <class>Smartwave_All_Model</class>
</all>

But you're doing the rewrite like this:

<smartwave_all>
 <rewrite>
 <core_layout>SampleCompany_Test_Model_Layout</core_layout>
 </rewrite>
</smartwave_all>

Where it should be:

<all>
 <rewrite>
 <core_layout>SampleCompany_Test_Model_Layout</core_layout>
 </rewrite>
</all>

Or the other way around you can change your models declaration like this:

<smartware_all>
 <class>Smartwave_All_Model</class>
</smartware_all>