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node_field_options_override()

Description

Overrides either a field[options] array structure or a flat option array with values derived from nodes.
If a field, then will also add field=>nodes[] sub array ready for field rendering.

Parameters

ColumnTypeDefaultDescription
&$field
$resource_type_field integer null ID of the metadata field, if specified will treat as flat options list
$field mixed Either field array structure or flat options list array

Return

boolean

Location

include/node_functions.php lines 976 to 1035

Definition

 
function node_field_options_override(&$field,$resource_type_field=null)
    {
    global $FIXED_LIST_FIELD_TYPES;
    if(isset($field["type"]) && !in_array($field["type"],$FIXED_LIST_FIELD_TYPES))
        {
        return false;
        }
    if (!is_null($resource_type_field))     // we are dealing with a single specified resource type so simply return array of options
        {
        $options = get_nodes($resource_type_field);
        if(count($options) > 0)     // only override if field options found within nodes
            {
            $field = array();
            foreach ($options as $option)
                {
                array_push($field,$option['name']);
                }
            }
        return true;
        }

    if (
        !isset($field['ref']) ||
        !isset($field['type']) ||
        !in_array($field['type'], array(2, 3, 7, 9, 12))
    )
        {
        return false;       // get out of here if not a node supported field type
        }

    migrate_resource_type_field_check($field);

    $field['nodes'] = array();          // setup new nodes associate array to be used by node-aware field renderers
    $field['node_options'] = array();   // setup new node options list for render of flat fields such as drop down lists (saves another iteration through nodes to grab names)

    if ($field['type'] == FIELD_TYPE_CATEGORY_TREE)
        {
        $category_tree_nodes = get_nodes($field['ref'], null, false);
        if (count($category_tree_nodes) > 0)
            {
            foreach ($category_tree_nodes as $node)
                {
                $field['nodes'][$node['ref']] = $node;
                }
            }
        }
    else        // normal comma separated options used for checkboxes, selects, etc.
        {
        $nodes = get_nodes($field['ref'],null,false,null,null,null,null,(bool)$field['automatic_nodes_ordering']);
        if (count($nodes) > 0)
            {
            foreach ($nodes as $node)
                {
                $field['nodes'][$node['ref']]=$node;
                array_push($field['node_options'],$node['name']);
                }
            }
        }
    return true;
    }

This article was last updated 4th December 2024 08:35 Europe/London time based on the source file dated 28th November 2024 12:10 Europe/London time.