VirtueMart - 1.0 Guia do Utilizador descarregar pdf (Página 5)

• virtuemart_parser.php (the central file for VM, prepares

the session, authentication, cart & runs functions)

• show_image_in_imgtag.php (used to display dynamically re-

sized images - using the class.img2thumb.php)

/components/com_virtuemart/css/

Contains the shop's css file (shop.css) and css styles needed for the

frontend administratin (admin.css)

/components/com_virtuemart/js/

Contains Javascripts (WebFX – Tabs, JSCookTree and the IE-

PNG-Transpareny Fix)

/components/com_virtuemart/shop_image/

/availability Contains images for displaying the availability of a

product.

Tip

All images in this folder are automatically parsed and displayed in the product form for selection as the

availability image for a product - so just copy them here.

/category Contains images for categories

/product Contains Product Images + resized product images

/ps_image Images for the administrative interface

/vendor Vendor Logos

3.2. Main Flow Chart

3.2.1. Joomla Part

Joomla uses the variable option to load a specific component. This variable must have the value

"com_virtuemart" to load VM. Called on the Frontend, Joomla searches the directory /components for a di-

rectory called com_virtuemart and a file called virtuemart.php in it.

When called in the backend, Joomla searches the directory /administrator/components for a directory

called com_virtuemart and a file called admin.phpshop.php in it.

If found, the file is included.

3.2.2. Shop Part

When the Shop is loaded, one of the first things is to load the file virtuemart_parser.php using the re-

quire_once command. It makes core interactions like the Joomla.php file /mainframe class and after that looks

for a variable called page (can be passed by GET or POST).

The page variable consists of the pagename and the core module name:

shop.browse => shop is the name of the shop core module and browse is the name of the page.

Tip

VirtueMart Developer Manual

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