PHP / MySQL - syntax to sort array results? - php

Question

Using a custom template (Journal 2) for a PHP-based E-commerce system.
In the control panel, there's a section that loads custom modules.
Problem is, the modules are presented in the order of creation, which makes it hard to find the right module.
I would like to sort them alphabetically.
How & where can I add a sort-by-name feature to this function?
public function all() {
if (isset($this->get_data['module_type'])) {
$module_type = $this->db->escape('journal2_' . $this->get_data['module_type']);
$query = $this->db->query('SELECT * FROM ' . DB_PREFIX . 'journal2_modules WHERE module_type = "' . $module_type . '"');
} else {
$query = $this->db->query('SELECT * FROM ' . DB_PREFIX . 'journal2_modules');
}
foreach ($query->rows as &$row) {
$row['module_data'] = json_decode($row['module_data'], true);
if (is_array($row['module_data'])) {
foreach($row['module_data'] as $key => &$value) {
if (!in_array($key, array('module_name', 'module_type'))) {
unset($row['module_data'][$key]);
}
}
}
}
return $query->rows;
}
Thanks in advance!

Answer 1

If you need an specific order, in sql you can use the order by clause. In your case could be useful order by module_name
$query = $this->db->query('SELECT * FROM ' . DB_PREFIX .
'journal2_modules WHERE module_type = "' .
$module_type . '" order by module_name ');

Answer 2

Try altering your query:
if (isset($this->get_data['module_type'])) {
$module_type = $this->db->escape('journal2_' . $this->get_data['module_type']);
$query = $this->db->query('SELECT * FROM ' . DB_PREFIX . 'journal2_modules WHERE module_type = "' . $module_type . '" ORDER BY module_data ASC');
} else {
$query = $this->db->query('SELECT * FROM ' . DB_PREFIX . 'journal2_modules ORDER BY module_data ASC');
}

Answer 3

At the end of your queries insert an ORDER BY condition like ORDER BY columnName to sort by that column.
public function all() {
if (isset($this->get_data['module_type'])) {
$module_type = $this->db->escape('journal2_' . $this->get_data['module_type']);
$query = $this->db->query('SELECT * FROM ' . DB_PREFIX . 'journal2_modules WHERE module_type = "' . $module_type . '"' . ' ORDER BY ' . $this->get_data['module_order_by']);
} else {
$query = $this->db->query('SELECT * FROM ' . DB_PREFIX . 'journal2_modules ORDER BY ' . $this->get_data['module_order_by']);
}
foreach ($query->rows as &$row) {
$row['module_data'] = json_decode($row['module_data'], true);
if (is_array($row['module_data'])) {
foreach($row['module_data'] as $key => &$value) {
if (!in_array($key, array('module_name', 'module_type'))) {
unset($row['module_data'][$key]);
}
}
}
}
return $query->rows;
}