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<?php |
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namespace SilverCommerce\Discounts\Extensions; |
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use SilverStripe\Dev\Debug; |
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use SilverStripe\Forms\FieldList; |
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use SilverStripe\Forms\TextField; |
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use SilverStripe\ORM\DataExtension; |
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use SilverStripe\Forms\NumericField; |
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use SilverStripe\Forms\DropdownField; |
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use SilverCommerce\Discounts\Model\Discount; |
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use SilverCommerce\Discounts\DiscountFactory; |
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use SilverCommerce\TaxAdmin\Helpers\MathsHelper; |
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use SilverCommerce\Discounts\Model\AppliedDiscount; |
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use SilverStripe\Forms\GridField\GridFieldConfig_RecordEditor; |
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use SilverStripe\Forms\GridField\GridFieldDeleteAction; |
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use SilverStripe\Forms\GridField\GridFieldAddExistingAutocompleter; |
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/** |
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* Add extra fields to an estimate (to track the discount) |
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*/ |
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class EstimateExtension extends DataExtension |
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{ |
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private static $has_many = [ |
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'Discounts' => AppliedDiscount::class |
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]; |
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private static $casting = [ |
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'DiscountDetails' => 'Varchar', |
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'DiscountTotal' => 'Currency' |
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]; |
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/** |
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* Find the specific discount object for this order |
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* |
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* @return Discount |
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*/ |
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public function findDiscount($code) |
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{ |
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$discount = $this->owner->Discounts()->find('Code', $code); |
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return $discount; |
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} |
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/** |
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* Does the current estimate have a discount? |
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*/ |
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public function hasDiscount() |
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{ |
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return (ceil($this->owner->getDiscountTotal())) ? true : false; |
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} |
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public function recalculateDiscounts() |
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{ |
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if ($this->owner->Discounts()->Count() > 0) { |
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foreach ($this->owner->Discounts() as $discount) { |
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$discount->Value = $discount->updateDiscount(); |
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} |
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} |
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} |
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/** |
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* get the total of all discounts applied to this estimate. |
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* |
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* @return void |
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*/ |
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public function getDiscountTotal() |
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{ |
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$total = 0; |
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if ($this->owner->Discounts()->Count() > 0) { |
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foreach ($this->owner->Discounts() as $discount) { |
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$total += $discount->Value; |
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} |
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} |
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$this->owner->extend("updateDiscountTotal", $total); |
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return $total; |
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} |
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/** |
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* update the total price with the discount reduction. |
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* |
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* @param [type] $total |
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* @return void |
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*/ |
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public function updateTotal(&$total) |
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{ |
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$total -= $this->owner->getDiscountTotal(); |
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} |
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/** |
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* Add discount info to an estimate |
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* |
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* @param FieldList $fields Current field list |
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*/ |
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public function updateCMSFields(FieldList $fields) |
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{ |
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$main = $fields->findOrMakeTab("Root.Main"); |
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$statuses = $this->owner->config()->get("statuses"); |
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$details = null; |
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$totals = null; |
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$misc = null; |
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$discounts = $fields->dataFieldByName('Discounts'); |
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// Switch unlink action to delete |
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if ($discounts) { |
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$discounts |
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->getConfig() |
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->removeComponentsByType(GridFieldDeleteAction::class) |
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->removeComponentsByType(GridFieldAddExistingAutocompleter::class) |
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->addComponent(new GridFieldDeleteAction()); |
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} |
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$discount_code = $fields->dataFieldByName('DiscountCode'); |
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$discount_amount = $fields->dataFieldByName('DiscountTotal'); |
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// Manually loop through fields to find info composite field, as |
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// fieldByName cannot reliably find this. |
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foreach ($main->getChildren() as $field) { |
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if ($field->getName() == "OrdersDetails") { |
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foreach ($field->getChildren() as $field) { |
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if ($field->getName() == "OrdersDetailsTotals") { |
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$totals = $field; |
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} |
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if ($field->getName() == "OrdersDetailsMisc") { |
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$misc = $field; |
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} |
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} |
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} |
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} |
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if ($totals && $discount_amount) { |
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$totals->insertBefore( |
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"TotalValue", |
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$discount_amount |
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); |
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} |
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if ($misc && $discount_code) { |
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$misc->push( |
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$discount_code |
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); |
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} |
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} |
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/** |
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* if necessary, recalculate the discount amount when estimate is saved. |
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* |
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* @return void |
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*/ |
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public function onAfterWrite() |
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{ |
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if ($this->owner->Discounts()->exists() && (!method_exists($this->owner, 'isPaid') || !$this->owner->isPaid())) { |
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$this->recalculateDiscounts(); |
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} |
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} |
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} |
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silvercommerce /
discounts
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