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<?php |
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/** |
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* |
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*/ |
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class DiscountCouponSiteTreeDOD extends DataExtension |
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{ |
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private static $db = array( |
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'PageIDs' => 'Text(700)' |
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); |
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/** |
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* update the CMS Fields |
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* |
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* @param FieldList $fields |
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* |
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*/ |
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public function updateCMSFields(FieldList $fields) |
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{ |
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$label = _t( |
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"DiscountCouponSiteTreeDOD.SELECT_PRODUCTS_AND_SERVICES", |
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'Select Product Categories and/or Products (if nothing is selected, the discount coupon will apply to all buyables).' |
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); |
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$field = new DiscountCouponSiteTreeDOD_Field( |
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$name = "PageIDs", |
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$title = $label, |
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$sourceObject = "SiteTree", |
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$keyField = "ID", |
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$labelField = "MenuTitle" |
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); |
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$filter = create_function('$obj', 'return ( ( $obj InstanceOf ProductGroup || $obj InstanceOf Product) && ($obj->ParentID != '.$this->owner->ID.'));'); |
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$field->setFilterFunction($filter); |
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$fields->addFieldToTab('Root.AppliesTo', $field); |
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} |
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/** |
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* normally returns TRUE, but returns FALSE when it, or its parent is in the list. |
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* todo: add products in other product categories |
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* |
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* @param SiteTree $page |
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* |
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* @return boolean |
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*/ |
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public function canBeDiscounted(SiteTree $page) |
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{ |
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if ($this->owner->PageIDs) { |
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$allowedPageIDs = explode(',', $this->owner->PageIDs); |
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$checkPages = ArrayList::create([$page]); |
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$alreadyCheckedPageIDs = array(); |
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while ($checkPages->Count()) { |
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$page = $checkPages->First(); |
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if (array_search($page->ID, $allowedPageIDs) !== false) { |
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return true; |
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} |
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$alreadyCheckedPageIDs[] = $page->ID; |
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$checkPages->remove($page); |
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// Parents list update |
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if ($page->hasMethod('AllParentGroups')) { |
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$parents = ArrayList::create($page->AllParentGroups()->toArray()); |
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} else { |
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$parents = ArrayList::create(); |
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} |
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$parent = $page->Parent(); |
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if ($parent && $parent->exists()) { |
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$parents->unshift($parent); |
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} |
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foreach ($parents as $parent) { |
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if (array_search($parent->ID, $alreadyCheckedPageIDs) === false) { |
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$checkPages->push($parent); |
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} |
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} |
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$checkPages->removeDuplicates(); |
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} |
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return false; |
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} |
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return true; |
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} |
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} |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.