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<?php
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// $Id noderef_parent.module, v 1.0 2007, Andreas Kohlbecker - http://www.bgbm.org/BioDivInf/default.htm $
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/**
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* @file
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* A online information service on taxonomic experts, their expertise
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* and ongoing and planned taxonomic research projects.
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* This module is brought to you by the European Distributed Institute of Taxonomy - EDIT
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*
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* @author Berlin, BGBM, Andreas Kohlbecker 2007 - http://www.bgbm.org/BioDivInf/default.htm
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*/
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/**
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* Implementation of hook_help
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*/
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function noderef_parent_help($section='')
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{
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$output = '';
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switch ($section)
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{
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case "admin/help#noderef_add":
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$output = '<p>'.t("Node Reference widget not editable but filled with default data.").'</p>';
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break;
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}
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return $output;
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}
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/**
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* Implementation of hook_field_settings().
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*
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*/
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function noderef_parent_field_settings($op, $field) {
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switch ($op) {
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case 'arguments':
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return;
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}
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}
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/**
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* Implementation of hook_widget_info.
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* Specifies the label and that it is a widget for the nodereference field type
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*/
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function noderef_parent_widget_info()
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{
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return array(
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'noderef_parent_display' => array(
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'label' => 'Node Reference Parent Display',
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'field types' => array('nodereference'),
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),
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);
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}
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/**
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* Implementation of hook_widget
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*/
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function noderef_parent_widget($op, &$node, $field, &$items)
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{
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if ($field['widget']['type'] == 'noderef_parent_display')
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{
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switch ($op) {
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case 'prepare form values':
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if (count($items) == 0 || (count($items)>0 && empty($items['parent_node']) && empty($items[0]['nid']))) {
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// must be a new node to be created get the parents node id from the URI parameters
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if ( is_numeric($_GET[$field['field_name']]) ) {
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$items['default nids'] = array($_GET[$field['field_name']]);
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}
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}
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else {
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// node already exists -> get nids from items
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$node_field_transposed = content_transpose_array_rows_cols($items);
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$items['default nids'] = (array)$node_field_transposed['nid'];
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}
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break;
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case 'form':
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$default_value = '';
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if ( isset($items['default nids'][0]) ){
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$parent_node = node_load($items['default nids'][0]);
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$default_value = "[$parent_node->nid]: $parent_node->title";
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}
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$form = array();
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$form[$field['field_name']] = array('#tree' => TRUE);
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$form[$field['field_name']]['parent_node'] = array(
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'#type' => 'textfield',
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'#title' => t($field['widget']['label']),
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'#default_value' => $default_value,
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'#disabled' => 'disabled',
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'#attributes' => array (
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'class' => 'noderef_parent_display',
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)
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);
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return $form;
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break;
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case 'process form values':
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preg_match('/^\[(\d+)\].*$/', $items['parent_node'], $matches);
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if (!empty($matches)) {
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$items[0]['nid'] = $matches[1];
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}
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// Remove the widget's data representation avoiding attempts to save it.
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//unset($items['parent_node']);
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$items['parent_node'] = array();
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break;
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}
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}
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}
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