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 by which modules requiring OpenCart core modifications can be installed without damaging the integrity of your core system for upgrades. vQmod keeps a list of filenames and changes required, in the form of one XML file per extension. These changes are then created as the core files are used, and the resulting files are stored as cached copies which are executed instead of the original, core PHP or TPL file.
Note: OpenCart 2.0 already include OCmod in default. OCmod is similar to vQmod.
The vQmod download and instructions for installation can be found here:
Here is the easy instruction:
- Download the appropriate vQmod zip file provided in the link.
- Uncompress the zip file and FTP the vQmod folder to your site's root directory.
- Set the permissions to 755 or 777 to sure vqmod/vqcache folders writable.
- Enter your store's location in your browser, then "vqmod/install" afterwards. If your store is located at "www.mystore.com", the vQmod install page would be located at "www.mystore.com/vqmod/install". The following text will appear on the page if it was installed correctly: "VQMOD HAS BEEN INSTALLED ON YOUR SYSTEM!".
Unlike the install folder after installing OpenCart, do not delete vQmod's install folder after the vQmod installation!
Load your homepage to see if it appears and works correctly after the install.