/**
* Drop column
*/
private function drop_column($keys)
{
$this->data = self::getJSON($this->file, true);
if (!is_array($keys)) {
$keys = self::trim_array(explode(',', $keys));
}
$new_data = array();
if (self::check_array($keys, true)) {
self::$error = array('code' => 104, 'message' => 'Somthing wrong width parameters: "' . implode(',', $keys) . '"');
return false;
}
if (!$this->check_table_keys($keys)) {
self::$error = array('code' => 202, 'message' => 'Try to drop an unexisting column from table "' . $this->table . '"');
return false;
}
foreach ($keys as $key) {
if ($number = array_search($key, $this->data['settings']['keys'])) {
unset($this->data['settings']['keys'][$number]);
}
if ($this->data['settings']['auto_increment'] == $key) {
$this->data['settings']['auto_increment'] = false;
}
if (isset($this->data['settings']['default_values'][$key])) {
unset($this->data['settings']['default_values'][$key]);
}
}
foreach ($this->data['rows'] as $row) {
foreach ($keys as $key) {
unset($row[$key]);
}
$new_data[] = $row;
}
$this->data['rows'] = $new_data;
return self::setJSON($this->file, $this->data);
}