help adding a column to query

[ricmetal]

hi guys

im looking into making a little modification to my open cart store but i need help cause im not fluent in advanced sql queries...

 

the line i need changed is the following:

$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') . "'");

i need to retrieve the column 'external_url' (which ive added) and is in the same database as 'image' (right near the beginning of the query (p.image))

ive tried adding p.external_url after p.image but i couldnt retreive the data.

 

the code that populates variables with the data retreived is:

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']
			);
		}

again, i tried adding a line after 'image', but again without any results.

any help?

thanks

Edited April 10, 2014 by ricmetal

[ricmetal]

can i bump?

[mac_gyver]

what debugging have you done to find out at what point your code and data are doing what you want?

 

you haven't even shown us the modified code, so how could we help with anything it is doing?

 

did you also change the code where you are calling that function to use the new value in the returned array()?

[ricmetal]

hi

yes, thanks

 

i added p.external_url to the top line @

$query = $this->db->query("SELECT DISTINCT *, pd.name AS name, p.image, p.external_url, m.name AS manufacturer, 

and added the external_url variable in the array:

return array( 
  'product_id'       => $query->row['product_id'],
  'external_url'     => $query->row['external_url'],

however, i managed to get the data to show today.

turns out i was outputting the wrong variable name (the variable which had the data in the array above)

thanks!

Edited April 14, 2014 by ricmetal