oxdiscount.php

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<?php

class oxDiscount extends oxI18n
{
    protected $_sClassName = 'oxdiscount';

    protected $_dAmount = null;

    protected $_sBasketIdent = null;

    public function __construct()
    {
        parent::__construct();
        $this->init( 'oxdiscount' );
    }

    public function delete( $sOXID = null )
    {
        if ( !$sOXID ) {
            $sOXID = $this->getId();
        }
        if ( !$sOXID ) {
            return false;
        }


        $oDB = oxDb::getDb();
        $oDB->execute( 'delete from oxobject2discount where oxobject2discount.oxdiscountid = "'.$sOXID.'"' );

        return parent::delete( $sOXID );
    }

    public function isForArticle( $oArticle )
    {
        // item discounts may only be applied for basket
        if ( $this->oxdiscount__oxaddsumtype->value == 'itm' ) {
            return false;
        }

        if ( $this->oxdiscount__oxamount->value || $this->oxdiscount__oxprice->value ) {
            return false;
        }

        $myDB = oxDb::getDb();

        //check for global discount (no articles, no categories)
        $sQ = "select 1 from oxobject2discount where oxdiscountid = '{$this->oxdiscount__oxid->value}' and ( oxtype = 'oxarticles' or oxtype = 'oxcategories')";
        $blOk = (bool) $myDB->getOne( $sQ );
        
        if ( !$blOk ) {
            return true;
        }

        // check if this article is assigned
        $sArticleID = "";
        if ($oArticle->oxarticles__oxparentid->value) {
            $sArticleID = "(oxobjectid = '".$oArticle->getId()."' or oxobjectid = '{$oArticle->oxarticles__oxparentid->value}')";
        } else {
            $sArticleID = "oxobjectid = '".$oArticle->getId()."'";
        }

        $sQ = "select 1 from oxobject2discount where oxdiscountid = '{$this->oxdiscount__oxid->value}' and $sArticleID and oxtype = 'oxarticles'";
        $blOk = (bool) $myDB->getOne( $sQ );
        if ( $blOk ) {
            return true;
        } else {
            // check if article is in some assigned category
            $aCatIds = $oArticle->getCategoryIds();
            if (!$aCatIds || !count($aCatIds)) {
                // no categories are set for article, so no discounts from categories..
                return false;
            }
            $sCatIds = "('".implode("','", $aCatIds)."')";
            // getOne appends limit 1, so this one should be fast enough
            $sQ = "select oxobjectid from oxobject2discount where oxdiscountid = '{$this->oxdiscount__oxid->value}' and oxobjectid in $sCatIds and oxtype = 'oxcategories'";
            if ( ( bool ) $myDB->getOne( $sQ ) ) {
                return true;
            }
        }
        return false;
    }

    public function isForBasketItem( $oArticle )
    {
        if ( $this->oxdiscount__oxamount->value == 0 && $this->oxdiscount__oxprice->value == 0 ) {
            return false;
        }

        // skipping bundle discounts
        if ( $this->oxdiscount__oxaddsumtype->value == 'itm' ) {
            return false;
        }

        $myDB = oxDb::getDb();
        // check if this article is assigned
        $sArticleID = "";
        if ( $oArticle->oxarticles__oxparentid->value ) {
            $sArticleID = "(oxobjectid = '".$oArticle->getId()."' or oxobjectid = '{$oArticle->oxarticles__oxparentid->value}')";
        } else {
            $sArticleID = "oxobjectid = '".$oArticle->getId()."'";
        }
        $sQ = "select 1 from oxobject2discount where oxdiscountid = '{$this->oxdiscount__oxid->value}' and $sArticleID and oxtype = 'oxarticles'";
        if ( !( $blOk = ( bool ) $myDB->getOne( $sQ ) ) ) {

            // checkin article cateogry
            $blOk = $this->_checkForArticleCategories( $oArticle );
        }
        return $blOk;
    }

    public function isForBasketAmount( $oBasket )
    {
        $dAmount = 0;
        $oBasketInfo  = $oBasket->getBasketSummary();
        $aBasketItems = $oBasket->getContents();
        foreach ( $aBasketItems as $oBasketItem ) {

            $oBasketArticle = $oBasketItem->getArticle();

            $blForBasketItem = false;
            if ( $this->oxdiscount__oxaddsumtype->value != 'itm' ) {
                $blForBasketItem = $this->isForBasketItem( $oBasketArticle );
            } else {
                $blForBasketItem = $this->isForBundleItem( $oBasketArticle );
            }

            if ( $blForBasketItem ) {
                if ( $this->oxdiscount__oxprice->value ) {
                    $dAmount += $oBasketArticle->getPrice()->getBruttoPrice() * $oBasketInfo->aArticles[$oBasketArticle->getId()];
                } elseif ( $this->oxdiscount__oxamount->value ) {
                    $dAmount += $oBasketInfo->aArticles[$oBasketArticle->getId()];
                }
            }
        }

        return $this->isForAmount( $dAmount );
    }

    public function isForAmount( $dAmount )
    {
        $blIs = true;
        if ( $this->oxdiscount__oxprice->value &&
            ( $dAmount < $this->oxdiscount__oxprice->value || $dAmount > $this->oxdiscount__oxpriceto->value ) ) {
            $blIs = false;
        } elseif ( $this->oxdiscount__oxamount->value &&
            ( $dAmount < $this->oxdiscount__oxamount->value || $dAmount > $this->oxdiscount__oxamountto->value ) ) {
            $blIs = false;
        }
        return $blIs;
    }

    public function isForBasket( $oBasket )
    {
        // initial configuration check
        if ( $this->oxdiscount__oxamount->value == 0 && $this->oxdiscount__oxprice->value == 0 ) {
            return false;
        }

        $oSummary = $oBasket->getBasketSummary();
        // amounts check
        if ( $this->oxdiscount__oxamount->value && ( $oSummary->iArticleCount < $this->oxdiscount__oxamount->value || $oSummary->iArticleCount > $this->oxdiscount__oxamountto->value ) ) {
            return false;
            // price check
        } elseif ( $this->oxdiscount__oxprice->value && ( $oSummary->dArticlePrice < $this->oxdiscount__oxprice->value || $oSummary->dArticlePrice > $this->oxdiscount__oxpriceto->value ) ) {
            return false;
        }

        // oxobject2discount configuration check
        $sQ = 'select 1 from oxobject2discount where oxdiscountid = "'.$this->oxdiscount__oxid->value.'" and oxtype in ("oxarticles", "oxcategories" ) ';

        return !( (bool) oxDb::getDb()->getOne( $sQ ) );
    }

    public function isForBundleItem( $oArticle )
    {
        if ( $this->oxdiscount__oxaddsumtype->value != 'itm' ) {
            return false;
        }

        $sSelect = "select 1 from oxobject2discount where oxdiscountid='".$this->getId()."' and oxobjectid='".$oArticle->getId()."' ";
        if ( !( $blOk = (bool) oxDb::getDb()->getOne( $sSelect ) ) ) {
            // additional checks for amounts and other dependencies
            $blOk = $this->_checkForArticleCategories( $oArticle );
        }
        return $blOk;
    }

    public function isForBundleBasket( $oBasket )
    {
        if ( $this->oxdiscount__oxaddsumtype->value != 'itm' ) {
            return false;
        }

        return $this->isForBasket( $oBasket );
    }

    public function getAbsValue( $dPrice, $dAmount = 1 )
    {
        if ( $this->oxdiscount__oxaddsumtype->value == '%' ) {
            return $dPrice * ( $this->oxdiscount__oxaddsum->value / 100 );
        } else {
            $oCur = $this->getConfig()->getActShopCurrencyObject();
            return $this->oxdiscount__oxaddsum->value * $dAmount * $oCur->rate;
        }
    }

    public function applyDiscount( $oPrice, $dAmount = 1 )
    {
        if ( $this->oxdiscount__oxaddsumtype->value == 'abs' ) {

            $oCur = $this->getConfig()->getActShopCurrencyObject();

            $oDiscountPrice = oxNew( 'oxprice' );
            $oDiscountPrice->setBruttoPriceMode();
            $oDiscountPrice->setPrice( $this->oxdiscount__oxaddsum->value * $oCur->rate, $oPrice->getVat() );
        } else {

            $oDiscountPrice = oxNew( 'oxprice' );
            $oDiscountPrice->setBruttoPriceMode();
            $oDiscountPrice->setPrice( $oPrice->getBruttoPrice() / 100 * $this->oxdiscount__oxaddsum->value, $oPrice->getVat() );
        }

        $oDiscountPrice->multiply( $dAmount * -1 );
        $oPrice->addPrice( $oDiscountPrice );
    }

    public function getBundleAmount( $dAmount )
    {
        $dItemAmount = $this->oxdiscount__oxitmamount->value;

        // Multiplying bundled articles count, if allowed
        if ( $this->oxdiscount__oxitmmultiple->value && $this->oxdiscount__oxamount->value > 0 ) {
            $dItemAmount = floor( $dAmount / $this->oxdiscount__oxamount->value ) * $this->oxdiscount__oxitmamount->value;
        }

        return $dItemAmount;
    }

    protected function _checkForArticleCategories( $oArticle )
    {
        // check if article is in some assigned category
        $aCatIds = $oArticle->getCategoryIds();
        if (!$aCatIds || !count($aCatIds)) {
            // no categories are set for article, so no discounts from categories..
            return false;
        }

        $sCatIds = "('".implode("','", $aCatIds)."')";
        // getOne appends limit 1, so this one should be fast enough
        $sQ = "select oxobjectid from oxobject2discount where oxdiscountid = '{$this->oxdiscount__oxid->value}' and oxobjectid in $sCatIds and oxtype = 'oxcategories'";

        return oxDb::getDb()->getOne( $sQ );
    }

    public function getSimpleDiscount()
    {
        $oDiscount = new OxStdClass();
        $oDiscount->sOXID     = $this->getId();
        $oDiscount->sDiscount = $this->oxdiscount__oxtitle->value;
        $oDiscount->sType     = $this->oxdiscount__oxaddsumtype->value;

        return $oDiscount;
    }

}

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