Opencart 2.2.0 enable search by manufacturer - php

Question

I am using OC 2.2.0 and been struggling with the following problem for a while now:
Example: I enter Siemens in header search and click SHOW ALL RESULTS, my search page appears with all results. The problem is - results list includes only products that have Siemens in their NAME. What I need is to show all products in search results list, belonging to that manufacturer, which in our example is Siemens manufacturer. In my search.php controller file, results are defined in this line:
$results = $this->model_catalog_product->getProducts($filter_data);
Which shows me that getProducts($filter_data) function of product.php file in model-catalog-product is where I need to define results. I tried tweaking the query in this function so that it includes manufacturer in search results too, but with no luck. So far, my getProducts($filter_data) function looks like this:
public function getProducts($data = array()) {
$sql = "SELECT p.product_id, (SELECT AVG(rating) AS total FROM " . DB_PREFIX . "review r1 WHERE r1.product_id = p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating, (SELECT price FROM " . DB_PREFIX . "product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '" . (int)$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)$this->config->get('config_customer_group_id') . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special";
if (!empty($data['filter_category_id'])) {
if (!empty($data['filter_sub_category'])) {
if(!empty($data['filter_sub_subcategory'])) {
$sql .= " FROM " . DB_PREFIX . "product_to_category p2c";
} else {
$sql .= " FROM " . DB_PREFIX . "product_to_category p2c";
}
//$sql .= " FROM " . DB_PREFIX . "category_path cp LEFT JOIN " . DB_PREFIX . "product_to_category p2c ON (cp.category_id = p2c.category_id)";
} else {
$sql .= " FROM " . DB_PREFIX . "product_to_category p2c LEFT JOIN " . DB_PREFIX . "category cc ON (p2c.category_id = cc.category_id)";
}
if (!empty($data['filter_filter'])) {
$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)";
} else {
$sql .= " LEFT JOIN " . DB_PREFIX . "product p ON (p2c.product_id = p.product_id)";
}
} else {
$sql .= " FROM " . DB_PREFIX . "product p";
}
$sql .= " LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) WHERE pd.language_id = '" . (int)$this->config->get('config_language_id') . "' AND p.status = '1' AND p.date_available <= NOW() AND p2s.store_id = '" . (int)$this->config->get('config_store_id') . "'";
if (!empty($data['filter_category_id'])) {
if (!empty($data['filter_sub_category'])) {
if(!empty($data['filter_sub_subcategory'])) {
$sql .= " AND p2c.category_id = '" . (int)$data['filter_sub_subcategory'] . "'";
} else {
$sql .= " AND p2c.category_id = '" . (int)$data['filter_sub_category'] . "'";
}
//$sql .= " AND cp.path_id = '" . (int)$data['filter_category_id'] . "'";
} else {
$sql .= " AND cc.parent_id = '" . (int)$data['filter_category_id'] . "'";
}
if (!empty($data['filter_filter'])) {
$implode = array();
$filters = explode(',', $data['filter_filter']);
foreach ($filters as $filter_id) {
$implode[] = (int)$filter_id;
}
$sql .= " AND pf.filter_id IN (" . implode(',', $implode) . ")";
}
}
if (!empty($data['filter_subcategory_id'])) {
if (!empty($data['filter_sub_category'])) {
$sql .= " AND p2c.category_id = '" . (int)$data['filter_sub_category'] . "'";
//$sql .= " AND cp.path_id = '" . (int)$data['filter_category_id'] . "'";
} else {
$sql .= " AND p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
}
if (!empty($data['filter_filter'])) {
$implode = array();
$filters = explode(',', $data['filter_filter']);
foreach ($filters as $filter_id) {
$implode[] = (int)$filter_id;
}
$sql .= " AND pf.filter_id IN (" . implode(',', $implode) . ")";
}
}
if (!empty($data['filter_sub_subcategory'])) {
if (!empty($data['filter_sub_subcategory'])) {
$sql .= " AND p2c.category_id = '" . (int)$data['filter_sub_subcategory'] . "'";
//$sql .= " AND cp.path_id = '" . (int)$data['filter_category_id'] . "'";
} else {
$sql .= " AND p2c.category_id = '" . (int)$data['filter_category_id'] . "'";
}
if (!empty($data['filter_filter'])) {
$implode = array();
$filters = explode(',', $data['filter_filter']);
foreach ($filters as $filter_id) {
$implode[] = (int)$filter_id;
}
$sql .= " AND pf.filter_id IN (" . implode(',', $implode) . ")";
}
}
if (!empty($data['filter_name']) || !empty($data['filter_tag'])) {
$sql .= " AND (";
if (!empty($data['filter_name'])) {
$implode = array();
$words = explode(' ', trim(preg_replace('/\s+/', ' ', $data['filter_name'])));
foreach ($words as $word) {
$implode[] = "pd.name LIKE '%" . $this->db->escape($word) . "%'";
}
if ($implode) {
$sql .= " " . implode(" AND ", $implode) . "";
}
if (!empty($data['filter_description'])) {
$sql .= " OR pd.description LIKE '%" . $this->db->escape($data['filter_name']) . "%'";
}
}
if (!empty($data['filter_name']) && !empty($data['filter_tag'])) {
$sql .= " OR ";
}
if (!empty($data['filter_tag'])) {
$sql .= "pd.tag LIKE '%" . $this->db->escape($data['filter_tag']) . "%'";
}
if (!empty($data['filter_name'])) {
$sql .= " OR LCASE(p.model) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
$sql .= " OR LCASE(p.sku) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
$sql .= " OR LCASE(p.upc) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
$sql .= " OR LCASE(p.ean) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
$sql .= " OR LCASE(p.wholesale) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
$sql .= " OR LCASE(p.isbn) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
$sql .= " OR LCASE(p.mpn) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
}
$sql .= ")";
}
if (!empty($data['filter_manufacturer_id'])) {
$sql .= " AND p.manufacturer_id = '".(int)$data['filter_manufacturer_id']."'";
}
$sql .= " GROUP BY p.product_id";
$sort_data = array(
'pd.name',
'p.model',
'p.quantity',
'p.price',
'rating',
'p.sort_order',
'p.date_added'
);
if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
if ($data['sort'] == 'pd.name' || $data['sort'] == 'p.model') {
$sql .= " ORDER BY LCASE(" . $data['sort'] . ")";
} elseif ($data['sort'] == 'p.price') {
$sql .= " ORDER BY (CASE WHEN special IS NOT NULL THEN special WHEN discount IS NOT NULL THEN discount ELSE p.price END)";
} else {
$sql .= " ORDER BY " . $data['sort'];
}
} else {
$sql .= " ORDER BY p.sort_order";
}
if (isset($data['order']) && ($data['order'] == 'DESC')) {
$sql .= " DESC, LCASE(pd.name) DESC";
} else {
$sql .= " ASC, LCASE(pd.name) ASC";
}
if (isset($data['start']) || isset($data['limit'])) {
if ($data['start'] < 0) {
$data['start'] = 0;
}
if ($data['limit'] < 1) {
$data['limit'] = 20;
}
$sql .= " LIMIT " . (int)$data['start'] . "," . (int)$data['limit'];
}
$product_data = array();
$query = $this->db->query($sql);
foreach ($query->rows as $result) {
$product_data[$result['product_id']] = $this->getProduct($result['product_id']);
}
return $product_data;
}
Can anyone help tweak the query so that it can show all products belonging to a searched manufacturer?
Thank you in advance.

Answer 1

So, finally i realized what was the missing query. Before the line
$sql .= " LEFT JOIN " . DB_PREFIX . "product_description pd ON
(p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX .
"product_to_store p2s
I had to put $sql .= " LEFT JOIN " . DB_PREFIX . "manufacturer m ON (m.manufacturer_id = p.manufacturer_id) ";
And then just before the line
$sql .= " OR LCASE(p.model) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
I had to put
$sql .= " OR LCASE(m.name) = '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "'";
So obviously I was missing the manufacturer data. This way I pulled the data from manufacturer table and processed it correctly. I hope this helps someone, cheers!