Tools
OCMod - [Editor] - [Documentation]
OCMOD is a built-in system in OpenCart v.2.x & 3.x that allows store owners to modify their store by uploading a compressed file that contains XML, SQL and PHP files.
It is very similar to vQmod, but with a little different XML syntax. But developers still can use both OCMod and vQmod in one OpenCart installation.
OCMOD can modify OpenCart controllers, model, views without changing any of the core files. This means that if a modification is removed none of the original OpenCart files needs to be restored or fixed manually.
It works with PHP, TPL and TWIG files.
vQmod - [Download] - [Documentation]
vQmod was a breakthrough for creating extensions in OpenCart 1.5.
vQmod (aka virtual Quick mod) gives the ability to create modification "scripts" that override the code during execution time. It intercepts the "include()" and "require()" functionality of php and substitutes the modified code in place of the original.
While modules, product feeds and other OpenCart extensions should be standalone and modular, some require modifications to the OpenCart core. Modifying OpenCart core files greatly reduces your ability to upgrade your store to later versions, and can affect other modules and extensions. vQmod provides a mechanism using which modules requiring OpenCart core modifications can be installed without damaging the integrity of your core system for upgrades.
It works with PHP, TPL and TWIG files.
vQmod Manager for OC4 - [GitHub] - [OpenCart Markeplace]
New long awaited OpenCart 4.0 is coming without familiar OCMod embedded.
It will use Event system instead.
This extension is a solutions for those who still wish to create own extensions modifications without editing core files.
It allows to include VQMod XML files inside OC4 extension zip files and install them on extension installation.
Extension was developed with plug and play in mind. It does not require you to download VQMod, upload and install it manually. All this can be done inside Module settings using admin interface.