product.inc

<?php
require_once SQ_CORE_PACKAGE_PATH.'/page/page.inc';
require_once SQ_FUDGE_PATH.'/general/text.inc';
require_once dirname(__FILE__).'/../interfaces/buyable/buyable.inc';

//register_implementation('product', 'buyable');
class Product extends Page implements Buyable
{


    function __construct($assetid=0)
    {
        $this->_ser_attrs = TRUE;
        parent::__construct($assetid);

    }//end constructor


    function __wakeup() 
    {
        // reload product price object as attribute var
        $this->_loadVars();
    }//end __wakeup()
    
    
    function _loadVars()
    {
        // include price class so unserialize() doesn't barf
        require_once SQ_PACKAGES_PATH.'/ecommerce/price/product_price.inc';
        parent::_loadVars();

    }//end _loadVars()


    protected function _getName($short_name=FALSE, $contextid=NULL)
    {
        // No context specified, using the current context
        if ($contextid === NULL) {
            $contextid = $GLOBALS['SQ_SYSTEM']->getContextId();
        }//end if

        // Obtain the attribute value for Name from the specified Context
        $values = $GLOBALS['SQ_SYSTEM']->am->getAttributeValuesByName('name', $this->type(), Array($this->id), $contextid);
        if (empty($values) === TRUE) {
            return parent::_getName($short_name, $contextid);
        } else {
            return $values[$this->id];
        }

    }//end _getName()


    function setAttrValue($name, $value)
    {
        switch ($name) {
            case 'price' :
                $price_obj = $this->attr('price_obj');
                $price_obj->value = $value;
                return $this->setAttrValue('price_obj', $price_obj);
            break;
            case 'price_obj' :
                if (!parent::setAttrValue($name, $value)) return FALSE;
                $price_obj = $this->attr('price_obj');
                if (!parent::setAttrValue('price', $price_obj->value)) {
                    return FALSE;
                }
                return TRUE;
            break;
            default :
                return parent::setAttrValue($name, $value);
        }

    }//end setAttrValue()


    function printFrontend()
    {
        // if we just submitted this form
        if (!is_null($qty = array_get_index($_POST, 'quantity', NULL))) {

            if ($qty > 0) {
                $this->processSelection();
            // if form submitted but invalid quantity
            } else if ($qty < 1 || !is_int($qty)) {
                // invalid selection - set flag here;
            }
        }

        parent::printFrontend();

    }//end printFrontend()


    function printBody()
    {
        ?>
        <form action="<?php echo $this->getURL(); ?>" method="post">
        <?php

            $replacement_array = Array();
            $keywords = $this->getAssetKeywords();
            // getAssetKeyword returns a array with the structure
            // $keywords = array( key => array( description => $decription,
            //                                  value => $value,
            //                                )
            //                  )
            // but..
            // replace_keywords expect array ( key => value)
            // so we rebuild this structure
            foreach ($keywords as $keyword => $info) {
                $replacement_array[$keyword] = $info['value'];
            }
            $product_description = $this->attr('description');
            echo replace_keywords($product_description, $replacement_array);

        ?>
        </form>
        </div>
        <?php

    }//end printBody()


    function processSelection()
    {

        $cart_assetid = $this->getActiveCartAssetid();

        if ($cart_assetid === FALSE) {
            trigger_localised_error('ECOM0011', E_USER_WARNING);
            return FALSE;
        }

        if (!is_numeric($qty = $_POST['quantity'])) {
            trigger_localised_error('ECOM0012', E_USER_WARNING);
            return FALSE;
        }

        // get the cart asset
        $cart =& $GLOBALS['SQ_SYSTEM']->am->getAsset($cart_assetid);

        // update item and quantity to cart
        if (isset($_SESSION['sq_cart_contents'][$this->id])) {
            $cart->update($this->id, (int)$qty);
        } else {
            $cart->add($this->id, $this->attr('price'), (int)$qty);
        }
        return TRUE;

    }//end processSelection()


    function getActiveCartAssetid()
    {
        $parents = array_keys($GLOBALS['SQ_SYSTEM']->am->getParents($this->id, 'ecommerce_cart', FALSE));

        switch (count($parents)) {
            case 0:
                return FALSE;
            break;

            case 1:
                return reset($parents);
            break;

            default:
                // get current lineage and reverse it so the closest assets are first
                $lineage = array_reverse($GLOBALS['SQ_SYSTEM']->am->getLineageFromURL());

                // return the first cart we find, ie. the one closest to us
                foreach ($lineage as $lineage_item) {
                    if (FALSE !== ($index = array_search($lineage_item['assetid'], $parents))) {
                        return $parents[$index];
                    }
                }

                // can't find any of the carts!
                return FALSE;

            break;
        }

    }//end getActiveCartAssetid()


    function getAssetKeywords($descriptions=FALSE)
    {
        $keywords = parent::getAssetKeywords($descriptions);

        // only expose the image stuff if we are a real asset (and not a dunmmy
        // one, as used in the asset listing to put our keywords in a drop down)
        if ($this->id) {

            // Adjust the quantity/commit keywords depending in whether there are
            // items in the cart already
            if (isset($_SESSION['sq_cart_contents'])) {

                $qty = array_get_index($_SESSION['sq_cart_contents'], $this->id, Array('quantity' => 0));
                if ($qty['quantity'] != 0) {
                    $keywords['quantity_field']['value'] = '<input type="text" name="update_quantity['.$this->id.']" size="10" value="'.$qty['quantity'].'" />';
                    $keywords['commit_button']['value'] = '<input type="submit" value="Update Quantity" />';
                } else {
                    $keywords['quantity_field']['value'] = '<input type="text" name="quantity" size="10" />';
                    $keywords['commit_button']['value'] = '<input type="submit" value="Add to Cart" />';
                }

            }

            $images = array_keys($GLOBALS['SQ_SYSTEM']->am->getChildren($this->id, 'image', FALSE));
            foreach ($images as $image_assetid) {
                $keywords['image_'.$image_assetid]['value'] = '<img src="'.$GLOBALS['SQ_SYSTEM']->am->getAssetURL($image_assetid).'">';
            }

        }

        return $keywords;

    }//end getAssetKeywords()


    public function getPrice() {
        $price_obj = $this->attr('price_obj');
        if (is_null($price_obj->value)) return 0;
        return $price_obj->value;

    }//end getPrice()


}//end class
?>