first commit

bundles/KupShop/CatalogBundle/Query/ProductsTypes.php

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+<?php
+
+namespace KupShop\CatalogBundle\Query;
+
+use Query\Operator;
+use Query\Operator as Op;
+use Query\QueryBuilder;
+
+class ProductsTypes
+{
+    public static function joinAlsoBought($id_products, $limit = null)
+    {
+        return function (QueryBuilder $qb) use ($id_products, $limit) {
+            $ordersWithProductsQb = sqlQueryBuilder()->select('id_order')->from('order_items')
+                ->where('total_price > 0')
+                ->andWhere(Operator::inIntArray($id_products, 'id_product'))
+                ->orderBy('id', 'DESC')
+                // TODO: TMP "fix" to speed-up cart rendering during black-friday, REVERT ME!
+                ->setMaxResults(10);
+
+            $alsoBoughtProductsQb = sqlQueryBuilder()
+                ->select('oi.id_product', 'COUNT(oi.id_product) cnt')
+                ->from('order_items', 'oi')
+                ->join('oi', 'ordersWithProducts', 'oil', 'oil.id_order = oi.id_order')
+                ->andWhere(Op::not(Op::inIntArray($id_products, 'oi.id_product')))
+                ->andWhere('oi.total_price > 0') // excluding gifts & returns
+                ->groupBy('oi.id_product')
+                ->orderBy('cnt', 'DESC');
+
+            if ($limit) {
+                $alsoBoughtProductsQb->setMaxResults($limit);
+            }
+
+            $qb->withExpression('ordersWithProducts', $ordersWithProductsQb)
+               ->withExpression('alsoBoughtProducts', $alsoBoughtProductsQb)
+               ->join('p', 'alsoBoughtProducts', 'ic', 'ic.id_product = p.id');
+        };
+    }
+}

bundles/KupShop/CatalogBundle/Query/RelatedProducts.php

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+<?php
+
+namespace KupShop\CatalogBundle\Query;
+
+use Query\Operator;
+use Query\QueryBuilder;
+
+class RelatedProducts
+{
+    public static function relatedProductsSubQuery(array $productIds, ?array $related_type = null)
+    {
+        $related_qb = sqlQueryBuilder()->select('*')
+            ->from('products_related')
+            ->andWhere(Operator::inIntArray($productIds, 'id_top_product'));
+
+        if ($related_type) {
+            $related_qb->andWhere(Operator::inIntArray($related_type, 'type'));
+        }
+
+        return $related_qb;
+    }
+
+    public static function relatedProductsSpec(array $productIds, ?array $related_type = null, string $alias = 'pr'): callable
+    {
+        return function (QueryBuilder $qb) use ($productIds, $related_type, $alias) {
+            $related_qb = self::relatedProductsSubQuery($productIds, $related_type);
+
+            $qb->joinSubQuery('p', $related_qb, $alias, "{$alias}.id_rel_product = p.id")
+                ->addSelect("{$alias}.*")
+                ->orderBy("{$alias}.position", 'ASC');
+        };
+    }
+}

bundles/KupShop/CatalogBundle/Query/Search.php

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+<?php
+
+namespace KupShop\CatalogBundle\Query;
+
+class Search
+{
+    public static function searchFields($search_term, $fields, $operator = 'AND')
+    {
+        return function (\Query\QueryBuilder $qb) use ($search_term, $fields, $operator) {
+            $search = get_search_query($search_term, $fields, $operator);
+
+            if ($search['order']) {
+                $ordering = $qb->getQueryPart('orderBy');
+                $qb->orderBySql($search['order']);
+                $qb->add('orderBy', $ordering, true);
+            }
+
+            $qb->addParameters($search['data']);
+
+            return $search['where'];
+        };
+    }
+}