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get_all_ancestors_for_node()

Description

Return a row consisting of all ancestor nodes of a given node
Example:
1
2
2.3
2.7
2.8.4
2.8.5
2.8.6
2.9
3
Passing in node 5 will return nodes 8,2 in one row

Parameters

ColumnTypeDefaultDescription
$ref integer A tree node
$level integer Node depth level (as returned by get_tree_node_level())

Return

array|boolean

Location

include/node_functions.php lines 521 to 550

Definition

 
function get_all_ancestors_for_node(int $ref, int $level)
    {
    if(0 >= $level)
        {
        return false;
        }

    $querycolumns = array();
    $query = " FROM node AS n{$level}";

    $from_level = $level;
    $level--;

    while(0 <= $level)
        {
        $query .= " LEFT JOIN node AS n{$level} ON n" . ($level + 1) . ".parent = n{$level}.ref";
        $querycolumns[] = "n{$level}.ref n{$level}ref";

        if(0 === $level)
            {
            $query .= " WHERE n{$from_level}.ref = ?";
            $placeholders = ['i', $ref];
            }

        $level--;
        }
    
    $query = "SELECT ". implode(",",$querycolumns) . $query;
    return ps_query($query, $placeholders);
    }

This article was last updated 17th November 2024 15:35 Europe/London time based on the source file dated 28th October 2024 11:15 Europe/London time.