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<?php |
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namespace SilverShop\Model\Modifiers\Tax; |
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use SilverShop\Model\Order; |
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/** |
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* Handles calculation of sales tax on Orders on |
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* a per-country basis. |
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* |
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* @property string $Country |
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*/ |
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class GlobalTax extends Base |
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{ |
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private static $db = [ |
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'Country' => 'Varchar', |
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]; |
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private static $table_name = 'SilverShop_GlobalTaxModifier'; |
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/** |
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* Tax rates per country |
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* |
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* @config |
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* @var array |
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*/ |
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private static $country_rates = []; |
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public function value($incoming) |
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{ |
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$rate = $this->Type == 'Chargable' |
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? |
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$this->Rate() |
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: |
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round(1 - (1 / (1 + $this->Rate())), Order::config()->rounding_precision); |
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return $incoming * $rate; |
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} |
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public function Rate() |
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{ |
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// If the order is no longer in cart, rely on the saved data |
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if ($this->OrderID && !$this->Order()->IsCart()) { |
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return $this->getField('Rate'); |
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} |
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$rates = self::config()->country_rates; |
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$country = $this->Country(); |
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if ($country && isset($rates[$country])) { |
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return $this->Rate = $rates[$country]['rate']; |
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} |
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$defaults = self::config()->defaults; |
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return $this->Rate = $defaults['Rate']; |
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} |
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public function getTableTitle() |
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{ |
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$country = $this->Country() ? ' (' . $this->Country() . ') ' : ''; |
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return parent::getTableTitle() . $country . |
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($this->Type == 'Chargable' ? '' : _t(__CLASS__ . '.Included', ' (included in the above price)')); |
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} |
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public function Country() |
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{ |
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if ($this->OrderID && $address = $this->Order()->getBillingAddress()) { |
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return $address->Country; |
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} |
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return null; |
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} |
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public function onBeforeWrite() |
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{ |
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parent::onBeforeWrite(); |
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// While the order is still in "Cart" status, persist country code to DB |
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if ($this->OrderID && $this->Order()->IsCart()) { |
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$this->setField('Country', $this->Country()); |
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} |
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} |
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} |
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silvershop /
silvershop-core
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