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  1.     public function Products($data = array()) {
  2.         $sql = "SELECT p.product_id, (SELECT AVG(rating) AS total FROM " . DB_PREFIX . "review r1 WHERE r1.product_id = p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating, (SELECT price FROM " . DB_PREFIX . "product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND pd2.quantity = '1' AND ((pd2.date_start = '0000-00-00' OR pd2.date_start < NOW()) AND (pd2.date_end = '0000-00-00' OR pd2.date_end > NOW())) ORDER BY pd2.priority ASC, pd2.price ASC LIMIT 1) AS discount, (SELECT price FROM " . DB_PREFIX . "product_special ps WHERE ps.product_id = p.product_id AND ps.customer_group_id = '" . (int)$this->config->get('config_customer_group_id') . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special";
  3.  
  4.         if (!empty($data['filter_category_id'])) {
  5.             if (!empty($data['filter_sub_category'])) {
  6.                 $sql .= " FROM " . DB_PREFIX . "category_path cp LEFT JOIN " . DB_PREFIX . "product_to_category p2c ON (cp.category_id = p2c.category_id)";
  7.             } else {
  8.                 $sql .= " FROM " . DB_PREFIX . "product_to_category p2c";
  9.             }
  10.  
  11.             if (!empty($data['filter_filter'])) {
  12.                 $sql .= " LEFT JOIN " . DB_PREFIX . "product_filter pf ON (p2c.product_id = pf.product_id) LEFT JOIN " . DB_PREFIX . "product p ON (pf.product_id = p.product_id)";
  13.             } else {
  14.                 $sql .= " LEFT JOIN " . DB_PREFIX . "product p ON (p2c.product_id = p.product_id)";
  15.             }
  16.         } else {
  17.             $sql .= " FROM " . DB_PREFIX . "product p";
  18.         }
  19.  
  20.         $sql .= " LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'";
  21.  
  22.         if (!empty($data['filter_category_id'])) {
  23.             if (!empty($data['filter_sub_category'])) {
  24.                 $sql .= " AND cp.path_id = '" . (int)$data['filter_category_id'] . "'";
  25.             } else {
  26.                 $sql .= " AND p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
  27.             }
  28.  
  29.             if (!empty($data['filter_filter'])) {
  30.                 $implode = array();
  31.  
  32.                 $filters = explode(',', $data['filter_filter']);
  33.  
  34.                 foreach ($filters as $filter_id) {
  35.                     $implode[] = (int)$filter_id;
  36.                 }
  37.  
  38.                 $sql .= " AND pf.filter_id IN (" . implode(',', $implode) . ")";
  39.             }
  40.         }
  41.  
  42.         if (!empty($data['filter_name']) || !empty($data['filter_tag'])) {
  43.             $sql .= " AND (";
  44.  
  45.             if (!empty($data['filter_name'])) {
  46.                 $implode = array();
  47.  
  48.                 $words = explode(' ', trim(preg_replace('/\s+/', ' ', $data['filter_name'])));
  49.  
  50.                 foreach ($words as $word) {
  51.                     $implode[] = "pd.name LIKE '%" . $this->db->escape($word) . "%'";
  52.                 }
  53.  
  54.                 if ($implode) {
  55.                     $sql .= " " . implode(" AND ", $implode) . "";
  56.                 }
  57.  
  58.                 if (!empty($data['filter_description'])) {
  59.                     $sql .= " OR pd.description LIKE '%" . $this->db->escape($data['filter_name']) . "%'";
  60.                 }
  61.             }
  62.  
  63.             if (!empty($data['filter_name']) && !empty($data['filter_tag'])) {
  64.                 $sql .= " OR ";
  65.             }
  66.  
  67.             if (!empty($data['filter_tag'])) {
  68.                 $implode = array();
  69.  
  70.                 $words = explode(' ', trim(preg_replace('/\s+/', ' ', $data['filter_tag'])));
  71.  
  72.                 foreach ($words as $word) {
  73.                     $implode[] = "pd.tag LIKE '%" . $this->db->escape($word) . "%'";
  74.                 }
  75.  
  76.                 if ($implode) {
  77.                     $sql .= " " . implode(" AND ", $implode) . "";
  78.                 }
  79.             }
  80.  
  81.             if (!empty($data['filter_name'])) {
  82.                 $sql .= " OR LCASE(p.model) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
  83.                 $sql .= " OR LCASE(p.sku) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
  84.                 $sql .= " OR LCASE(p.upc) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
  85.                 $sql .= " OR LCASE(p.ean) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
  86.                 $sql .= " OR LCASE(p.jan) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
  87.                 $sql .= " OR LCASE(p.isbn) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
  88.                 $sql .= " OR LCASE(p.mpn) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
  89.             }
  90.  
  91.             $sql .= ")";
  92.         }
  93.  
  94.         if (!empty($data['filter_manufacturer_id'])) {
  95.             $sql .= " AND p.manufacturer_id = '" . (int)$data['filter_manufacturer_id'] . "'";
  96.         }
  97.  
  98.         $sql .= " GROUP BY p.product_id";
  99.  
  100.         $sort_data = array(
  101.             'pd.name',
  102.             'p.model',
  103.             'p.quantity',
  104.             'p.price',
  105.             'rating',
  106.             'p.sort_order',
  107.             'p.date_added'
  108.         );
  109.  
  110.         if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
  111.             if ($data['sort'] == 'pd.name' || $data['sort'] == 'p.model') {
  112.                 $sql .= " ORDER BY LCASE(" . $data['sort'] . ")";
  113.             } elseif ($data['sort'] == 'p.price') {
  114.                 $sql .= " ORDER BY (CASE WHEN special IS NOT NULL THEN special WHEN discount IS NOT NULL THEN discount ELSE p.price END)";
  115.             } else {
  116.                 $sql .= " ORDER BY " . $data['sort'];
  117.             }
  118.         } else {
  119.             $sql .= " ORDER BY p.sort_order";
  120.         }
  121.  
  122.         if (isset($data['order']) && ($data['order'] == 'DESC')) {
  123.             $sql .= " DESC, LCASE(pd.name) DESC";
  124.         } else {
  125.             $sql .= " ASC, LCASE(pd.name) ASC";
  126.         }
  127.  
  128.         if (isset($data['start']) || isset($data['limit'])) {
  129.             if ($data['start'] < 0) {
  130.                 $data['start'] = 0;
  131.             }
  132.  
  133.             if ($data['limit'] < 1) {
  134.                 $data['limit'] = 20;
  135.             }
  136.  
  137.             $sql .= " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
  138.         }
  139.  
  140.         $product_data = array();
  141.  
  142.         $query = $this->db->query($sql);
  143.  
  144.         foreach ($query->rows as $result) {
  145.             $product_data[$result['product_id']] = $this->getProduct($result['product_id']);
  146.         }
  147.  
  148.         return $product_data;
  149.     }
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