Developer Guide

Address any complaints, suggestions, fixes or vitriol to xisi @ freenode / #mpos or thanks :)

Last updated: Jan 16th, 2014

This guide is not intended to be documentation; this is a simple overview developers can reference for common tasks and learning the layout of MPOS.

This is written towards developers with a solid understanding of basic php/html/sql and a little smarty/css/js for good measure. If that does not describe you, proceed with caution.

This guide covers

• Adding a static page
• Adding a config option (file)
• Version incrementing

Adding a static page

There are 2 components you'll need to add for a new static page:

• Template - A smarty template for the page

• public/templates/mpos/type/[type]/default.tpl

• Page - A php controller for the page

• public/include/pages/[type]/page.inc.php

If you need to add or change any functionality, you'll need to edit the related class files in:

• public/include/classes

Adding a config option (file)

You'll have to add at least 1 thing, possibly 2:

• Config option - The config option in your global.inc.php and in global.inc.dist.php

• public/include/config/global.inc.php

• public/include/config/global.inc.dist.php

• Smarty Globals - If you need to access the config option in a template, you need to add it to the smarty globals

• public/include/smarty_globals.inc.php

Version incrementing

If your update is ready to be pulled, there's a few things you need to check first:

• Update SQL - Create 0XY_whatever_update.sql and update/insert any changes needed to fix existing installs

• DB Insert SQL - DB_VERSION = '0.X.Y' in 000_base_structure.sql

• Check the 000_base_structure.sql to see how this works

• DB Update SQL - DB_VERSION = '0.X.Y' and db_upgrade_required = 0 in your 0XY_whatever_update.sql

• Check an existing 0XY_whatever_update.sql to see how this works

• DB Version - If you updated the db, update DB_VERSION in public/include/version.inc.php

• Config Version - if you updated the config, update CONFIG_VERSION in public/include/version.inc.php