Display a list of all attributes in opencart - php

Question

I want to display a list of all attributes that are added into database but every time I try something it doesn't work. I want to show this inside a div from the from the front page. I tried to insert this into featured.tpl:
<?php
foreach ($attribute_groups as $attribute_group) {
echo $attribute_group['name'];
print_r($attribute_group);
echo '<select name="listaGrupe">';
foreach ($attribute_groups['attribute'] as $attribute) {
echo '<option value="'.$attribute.'">'.$attribute.'</option>';
}
echo '</select>';
}
?>

Answer 1

You ned to use this model
public function getAttributes($data = array()) {
$sql = "SELECT *, (SELECT agd.name FROM " . DB_PREFIX . "attribute_group_description agd WHERE agd.attribute_group_id = a.attribute_group_id AND agd.language_id = '" . (int)$this->config->get('config_language_id') . "') AS attribute_group FROM " . DB_PREFIX . "attribute a LEFT JOIN " . DB_PREFIX . "attribute_description ad ON (a.attribute_id = ad.attribute_id) WHERE ad.language_id = '" . (int)$this->config->get('config_language_id') . "'";
if (!empty($data['filter_name'])) {
$sql .= " AND LCASE(ad.name) LIKE '" . $this->db->escape(utf8_strtolower($data['filter_name'])) . "%'";
}
if (!empty($data['filter_attribute_group_id'])) {
$sql .= " AND a.attribute_group_id = '" . $this->db->escape($data['filter_attribute_group_id']) . "'";
}
$sort_data = array(
'ad.name',
'attribute_group',
'a.sort_order'
);
if (isset($data['sort']) && in_array($data['sort'], $sort_data)) {
$sql .= " ORDER BY " . $data['sort'];
} else {
$sql .= " ORDER BY attribute_group, ad.name";
}
if (isset($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'];
}
$query = $this->db->query($sql);
return $query->rows;
}
The in your controller simply load this model and manipulate with the data it returns. By default it returns all the attributes in database

Answer 2

You may be looking for a function format closer to this:
foreach ($attribute_groups as $attribute_group) {
$options = '';
$name = $attribute_group['name'];
$output = '<select name="$name">';
foreach ($attribute_groups['attribute'] as $attribute) {
$options .= '<option value="'.$attribute.'">'.$attribute.'</option>';
}
echo $output.$options.'</select>';
}

Answer 3

check in your controller .. if $attribute_groups have datas in it....
print_r($attribute_groups);
and see.. make sure your $attribute_groups array is not empty... i think u getting that error since your $attribute_groups array is empty...
if incase you are sure, $attribute_groups can be empty then u can check ...
if(!empty($attribute_groups)){
foreach ($attribute_groups as $attribute_group) {
$options = '';
$name = $attribute_group['name'];
$output = '<select name="$name">';
foreach ($attribute_groups['attribute'] as $attribute) {
$options .= '<option value="'.$attribute.'">'.$attribute.'</option>';
}
echo $output.$options.'</select>';
}
}
this will see if your array is empty or not.. if not then foreach()... else do nothing