I have code in Opencart , it randomly displays the products in the store. I would like to modify this code to display the products of a specific category through id or in the best way.
The original code where I believe the modification can be made, is in the controller folder, it follows the code:
$data['products'] = array();
$filter_data = array(
'sort' => 'p.date_added',
'order' => 'DESC',
'start' => 0,
'limit' => $setting['limit']
);
$results = $this->model_catalog_random->getRandomProducts($filter_data);
I modified the code and put it like this, but it did not work:
$data['products'] = array();
$filter_data = array(
'filter_category_id' => '63',
'sort' => 'p.date_added',
'order' => 'DESC',
'start' => 0,
'limit' => $setting['limit']
);
$results = $this->model_catalog_random->getRandomProducts($filter_data);
Follow the whole query code:
class ModelCatalogRandom extends Model {
public function getProduct($product_id) {
if ($this->customer->isLogged()) {
$customer_group_id = $this->customer->getGroupId();
} else {
$customer_group_id = $this->config->get('config_customer_group_id');
}
$query = $this->db->query("SELECT DISTINCT *, pd.name AS name, p.image, m.name AS manufacturer, (SELECT price FROM " . DB_PREFIX . "product_discount pd2 WHERE pd2.product_id = p.product_id AND pd2.customer_group_id = '" . (int)$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)$customer_group_id . "' AND ((ps.date_start = '0000-00-00' OR ps.date_start < NOW()) AND (ps.date_end = '0000-00-00' OR ps.date_end > NOW())) ORDER BY ps.priority ASC, ps.price ASC LIMIT 1) AS special, (SELECT points FROM " . DB_PREFIX . "product_reward pr WHERE pr.product_id = p.product_id AND customer_group_id = '" . (int)$customer_group_id . "') AS reward, (SELECT ss.name FROM " . DB_PREFIX . "stock_status ss WHERE ss.stock_status_id = p.stock_status_id AND ss.language_id = '" . (int)$this->config->get('config_language_id') . "') AS stock_status, (SELECT wcd.unit FROM " . DB_PREFIX . "weight_class_description wcd WHERE p.weight_class_id = wcd.weight_class_id AND wcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS weight_class, (SELECT lcd.unit FROM " . DB_PREFIX . "length_class_description lcd WHERE p.length_class_id = lcd.length_class_id AND lcd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS length_class, (SELECT AVG(rating) AS total FROM " . DB_PREFIX . "review r1 WHERE r1.product_id = p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating, (SELECT COUNT(*) AS total FROM " . DB_PREFIX . "review r2 WHERE r2.product_id = p.product_id AND r2.status = '1' GROUP BY r2.product_id) AS reviews, p.sort_order FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) LEFT JOIN " . DB_PREFIX . "manufacturer m ON (p.manufacturer_id = m.manufacturer_id) WHERE p.product_id = '" . (int)$product_id . "' AND 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 ($query->num_rows) {
return array(
'product_id' => $query->row['product_id'],
'name' => $query->row['name'],
'description' => $query->row['description'],
'meta_description' => $query->row['meta_description'],
'meta_keyword' => $query->row['meta_keyword'],
'tag' => $query->row['tag'],
'model' => $query->row['model'],
'sku' => $query->row['sku'],
'upc' => $query->row['upc'],
'ean' => $query->row['ean'],
'jan' => $query->row['jan'],
'isbn' => $query->row['isbn'],
'mpn' => $query->row['mpn'],
'location' => $query->row['location'],
'quantity' => $query->row['quantity'],
'stock_status' => $query->row['stock_status'],
'image' => $query->row['image'],
'manufacturer_id' => $query->row['manufacturer_id'],
'manufacturer' => $query->row['manufacturer'],
'price' => ($query->row['discount'] ? $query->row['discount'] : $query->row['price']),
'special' => $query->row['special'],
'reward' => $query->row['reward'],
'points' => $query->row['points'],
'tax_class_id' => $query->row['tax_class_id'],
'date_available' => $query->row['date_available'],
'weight' => $query->row['weight'],
'weight_class_id' => $query->row['weight_class_id'],
'length' => $query->row['length'],
'width' => $query->row['width'],
'height' => $query->row['height'],
'length_class_id' => $query->row['length_class_id'],
'subtract' => $query->row['subtract'],
'rating' => round($query->row['rating']),
'reviews' => $query->row['reviews'] ? $query->row['reviews'] : 0,
'minimum' => $query->row['minimum'],
'sort_order' => $query->row['sort_order'],
'status' => $query->row['status'],
'date_added' => $query->row['date_added'],
'date_modified' => $query->row['date_modified'],
'viewed' => $query->row['viewed']
);
} else {
return false;
}
}
public function getRandomProducts($data = array()) {
if ($this->customer->isLogged()) {
$customer_group_id = $this->customer->getGroupId();
} else {
$customer_group_id = $this->config->get('config_customer_group_id');
}
$cache = md5(http_build_query($data));
$product_data = $this->cache->get('product.' . $cache . '.' . $customer_group_id);
//if (!$product_data) {
$sql = "SELECT *, p.product_id, (SELECT AVG(rating) AS total FROM " . DB_PREFIX . "review r1 WHERE r1.product_id = p.product_id AND r1.status = '1' GROUP BY r1.product_id) AS rating FROM " . DB_PREFIX . "product p LEFT JOIN " . DB_PREFIX . "product_description pd ON (p.product_id = pd.product_id) LEFT JOIN " . DB_PREFIX . "product_to_store p2s ON (p.product_id = p2s.product_id) WHERE pd.language_id = '" . (int)$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') . "'";
$sql .= " GROUP BY p.product_id";
$sort_data = array( 'pd.name',
'p.model',
'p.quantity',
'p.price',
'rating',
'p.sort_order',
'p.date_added'
);
$sql .= " ORDER BY Rand()";
if (isset($data['order']) && ($data['order'] == 'DESC')) {
$sql .= " DESC";
} else {
$sql .= " ASC";
}
if (isset($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']);
}
$this->cache->set('product.' . $cache . '.' . $customer_group_id, $product_data);
//}
return $product_data;
}