Zookal_Mock

Transparent autodetecting of disabled core modules and extensions and providing mock objects for not
breaking Magento.

Nothing to configure. *
No class rewrites.
Only one observer.
Works out of the box.

* only if you disable modules which have dependencies to other disabled modules. See documentation.

If you try to disable e.g. Mage_Newsletter or Mage_Wishlist or ... and you call certain parts of the backend or some rare parts of the frontend you will get
errors that Magento cannot find the class XYZ. Best examples are the two previoulsy mentioned. If you have disabled them and you open in the backend a
customer entry to edit it, the page will generate an error. Mage_Customer Edit has many dependencies with other modules. So the Zookal Mock
Module will provide you mock objects which catches all method calls to disabled classes of that modules without breaking anything.

Uninstalling payment modules: If you try to remove a payment module (which has already been used by customers in the checkout) you
cannot open anymore all orders associated with that module. The reason is that the tables sales_flat_*_payment contains in the column method
the method which referers to the model for loading payment relevant informations. Please see below how to uninstall your payment module without touching
database tables.

Which modules or extensions causes challenges?

If one or all of the following modules (until now) are disabled they will then break the rest of the core:

Mage_Wishlist
Mage_Weee
Mage_Review
Mage_Rating
Mage_Tag
Mage_Tax
Mage_Shipping
Mage_Log
Mage_Backup
Mage_Customer
Mage_Checkout
Mage_Sales
Mage_Cms
Mage_Catalog
Mage_Adminhtml
Mage_GiftMessages
Mage_GoogleCheckout
All payment modules
and some more ... test it :-)

Also we can't delete the database tables from some disabled modules as e.g. CatalogIndex relies von customer_group tables
or Customer relies on some tax tables when tax is disabled.

How do I
disable a module?

Add in your custom app/etc/modules/Vendor_NameSpace.xml

false

How do I uninstall a payment module?

An example would be if you switch from one Stripe payment module to another or changing the credit card payment provider.

Simply delete/uninstall all module relevant files.

In one of your local modules add the following "backup" entry into the config.xml:

zookal_mock/mocks_mage_payment


zookal_mock/mocks_mage_payment

The above xml contains the section where Mage_Paypal module has been disabled and previously used in orders.

No other database updates are required. Clear the caches and check in the backend some orders related to that payment method. You will now see a key/value
list of the payment details.

The backend mock payment block has an integrated event mock_payment_backend_block_to_html_before with which you can modify the output.

The frontend mock payment block uses the default block Mage_Core_Block_Abstract which allows you the usual modifications.

I've disabled and removed Mage_Adminhtml

You rock!

Did you remove every Adminhtml area via $ find . -iname "adminhtml" -type d -exec rm -Rf {} + ?

Running a backend-less version of Magento saves you processor time, space, speeds up your store and improves security. All missing required adminhtml files
will be transparently mocked. Nothing to configure!

But how do I maintain a backend-less store?

You have two solutions:

Install your backend on a different server (or different path with different domain) and share the same database with the frontend. Security Warning
(1).

Use on the command line the awesome tool n98-magerun (2).

(1) If having multiple servers: Make sure that you connect only via SSL encryption to your MySQL server. Someone is spying :-(``

(2) There is currently a feature missing in n98-magerun https://github.com/netz98/n98-magerun/issues/309
that you cannot configure Mage:run() to use a custom configuration model as explained below.

I've disabled module
FooBar but still getting errors regarding dependency?

Let's say you disabled Mage_Dataflow but enabled Mage_Catalog and the system is presenting you:

"Mage_Catalog" requires module "Mage_Dataflow"

You have two possibilities:

Edit app/etc/modules/Mage_*.xml and remove the appropriate dependencies.
Edit your main index.php file and add this custom config model to Mage::run()

Mage::run($mageRunCode, $mageRunType, array(
'config_model' => 'Zookal_Mock_Model_Config'
));

The config model Zookal_Mock_Model_Config will automatically resolve invalid dependencies for disabled modules. But some dependency really make
sense ;-)

I've disabled
Mage_[Bundle|Rating|Review|Wishlist|Usa] but getting a weird error!

The error is: Notice: Trying to get property of non-object in app/code/core/Mage/Core/Model/Config.php on line 1239.

Digging deeper Mage_Core_Model_Config would like to access Mage::helper('core')->__() to display you the error message that
Mage_[Bundle|Rating|Review|Wishlist|Usa] requires the module Mage_XmlConnect. The notice message appears because the core helper is not yet initialized.

So deactivating Mage_XmlConnect works out as the solution. It has many dependencies. Btw: Only if you have the Magento own mobile app you'll need the
XmlConnect module. I'll disable it every time.

I've disabled
Mage_Cms!

The catalog system and other routes will still work but you cannot access the root page (/) because that route is provided by Mage_Cms. You only have two
solutions:

Customize your theme in that way that no one can access (/).
Create your own front router by adding an observer to the event controller_front_init_routers.

Blocks are also gone.

I've disabled Mage_Shipping but the checkout still won't work

You need to trick the Sales and the Checkout module. You have to place a rewrite of Mage_Catalog_Model_Product somewhere in your
codebase or disable the comment in the mocks modules config.xml file.

Add the following method to your Mage_Catalog_Model_Product rewrite:

/**
* @return bool
*/
public function getIsVirtual()
{
return true;
}

Alternatively you can use the class Zookal_Mock_Model_Catalog_Model_Product provided by this module.

Do not change anything in the database as there are several columns and attributes whose name is is_virtual or virtual.

Can I remove the files of the disabled modules?

Yes you can! And you can even remove

Mage_AdminNotification
Mage_Adminhtml
Mage_Log
Mage_Tag
Mage_shipping

which have hardcoded dependencies through the whole Mage_Adminhtml code (if adminhtml has not been removed).

The missing models will also be mocked via the PHP set_include_path() method. Fully compatible from Magento 1.1.x

Will there be a performance increase?

Yes there will be a performance increase due to less loading of classes and xml files.

About

Extension Key: Zookal_Mock
It's unit tested! :-)
It runs on production!

License

OSL - Open Software Licence 3.0

Copyright

Copyright (c) Zookal Pty Ltd, Sydney Australia

Author

Cyrill Schumacher - My pgp public key

Made in Sydney, Australia :-)