DEFINES Objective Learn how the defines are used to manipulate the system. Requirements Understanding of define() function. Estimated Time 5 minutes www.prodigyview.com

Follow Along With A Code Example Download a copy of the example code at www.prodigyview.com/source. Install the system in an environment you feel comfortable testing in. Proceed to DEFINES.php www.prodigyview.com

What are DEFINES In PHP defines are named constants that are global among the code being executed. In ProdigyView the DEFINES have two functions. Specify the location of the xml configuration file and the database configuration file Structure the file system for applications, libraries and other features On our next slide, we will view an example of the defines file. www.prodigyview.com

Example Of Defines File

File Structure In the previous slide when it was stated that Defines can “structure the file system”, what was being referenced was ProdigyView gives components of the system places where they belong. IE: All images go in the image folder IE: All videos go in the videos folder Changing the defines allows you to change where you want these resources to exist. Libraries do not have to be in /resources/libraries/, they can be in another folder such as /system/libs/ if you change it in the defines. So lets run through the defines if you are looking for clarification on any. www.prodigyview.com

PV_ROOT The PV_ROOT is the root directory of the site. All files should in a location that can be referenced by the PV_ROOT. The root location can be set multiple ways such as: $_SERVER[‘DOCUMENT_ROOT’ dir(__FILE__) ‘/var/www/mysite/’. www.prodigyview.com

PV_CORE PV_CORE is the core location of the classes that make up ProdigyView’s root system. All the folders and classes that begin with PV should be in this folder. www.prodigyview.com

PV_APPLICATIONS / PV_ADMIN_APPLICATIONS PV_APPLICATIONS is the directory that all applications should exist that are called with PVApplications::execute function. In an attempt to separate front-end from backend, the applications administrative section can be placed in a separate locations. www.prodigyview.com

PV_MODULES Modules are components that interact with applications. Files that contain the modules have a folder they are assigned. www.prodigyview.com

PV_LIBRARIES PV_LIBRARIES is the location of the libraries that work with ProdigyView. Libraries are handled through the PVLibraries class. www.prodigyview.com

PV_PLUGINS Plugins are extensions in ProdigyView whose addition is controlled by the database. Plugins can be object oriented or procedural additions and are persistent once loaded. www.prodigyview.com

PV_MVC ProdigyView is a framework that allows multiple MVCs. MVCs are defined by the developer. An example MVC that comes with ProdigyView is Helium. www.prodigyview.com

Configuration Files The configuration files are divided into two files. The php file contains the database connections. The xml file contains system configurations. www.prodigyview.com

PV_TEMPLATES If the system being created allows templates, the template directory can set. www.prodigyview.com

Javascript Libraries ProdigyView distinguishes the JavaScript files from normal JavaScript, JQuery, Prototype and Mootools. Also it recognizes a difference between front-end js files vs admin files. The files do not contain the PV_ROOT because they are accessed in the browser and having PV_ROOT might make them inaccessible from the browser.

Media Files Media files consist of images, video, audio and files. ProdigyView allows separation of each file type. Parts of the framework such as the CMS make use of these defines for placing the files. These files also do not contain PV_ROOT. www.prodigyview.com

Admin The last define is the administrative define. If this define is set to true, applications will be allowed to access their administrative section. If set to false, the function PVApplication::pv_exec_admin() will not be accessible. This is done to separate the front end from backend. www.prodigyview.com

Review As seen, there are numerous defines that can set. Those defines are changeable to change how your system is set up. When you are comfortable with various aspects of the ProdigyView, take the time to change the defines to customize the system you build. www.prodigyview.com