function views_plugin_query_default::add_orderby

Add an ORDER BY clause to the query.

Parameters

string $table: The table this field is part of. If a formula, enter NULL. If you want to orderby random use "rand" as table and nothing else.

string $field: The field or formula to sort on. If already a field, enter NULL and put in the alias.

string $order: Either ASC or DESC.

string $alias: The alias to add the field as. In SQL, all fields in the order by must also be in the SELECT portion. If an $alias isn't specified one will be generated for from the $field; however, if the $field is a formula, this alias will likely fail.

string $params: Any params that should be passed through to the add_field.

File

plugins/views_plugin_query_default.inc, line 1060

Class

views_plugin_query_default

Object used to create a SELECT query.

Code

public function add_orderby($table, $field = NULL, $order = 'ASC', $alias = '', $params = array()) {
    // Only ensure the table if it's not the special random key.
    // @todo Maybe it would make sense to just add a add_orderby_rand or
    // something similar.
    if ($table && $table != 'rand') {
        $this->ensure_table($table);
    }
    // Only fill out this aliasing if there is a table; otherwise we assume it
    // is a formula.
    if (!$alias && $table) {
        $as = $table . '_' . $field;
    }
    else {
        $as = $alias;
    }
    if ($field) {
        $as = $this->add_field($table, $field, $as, $params);
    }
    $this->orderby[] = array(
        'field' => $as,
        'direction' => strtoupper($order),
    );
}