terms_from_node.inc

<?php


/**
 * @file
 * Plugin to provide an relationship handler for all terms from node.
 */

/**
 * Plugins are described by creating a $plugin array which will be used
 * by the system that includes this file.
 */
$plugin = array(
    'title' => t('Multiple terms from node'),
    'keyword' => 'terms',
    'description' => t('Adds a taxonomy terms from a node context; if multiple terms are selected, they wil be concatenated.'),
    'required context' => new ctools_context_required(t('Node'), 'node'),
    'context' => 'ctools_terms_from_node_context',
    'edit form' => 'ctools_terms_from_node_settings_form',
    'defaults' => array(
        'vocabulary' => array(),
        'concatenator' => ',',
    ),
);

/**
 * Return a new context based on an existing context.
 */
function ctools_terms_from_node_context($context, $conf) {
    // If unset it wants a generic, unfilled context, which is just NULL.
    if (empty($context->data)) {
        return ctools_context_create_empty('terms', NULL);
    }
    // Collect all terms for the chosen vocabulary and concatenate them.
    $node = $context->data;
    $terms = array();
    $fields = field_info_instances('node', $node->type);
    foreach ($fields as $name => $info) {
        $field_info = field_info_field($name);
        if ($field_info['type'] == 'taxonomy_term_reference' && (empty($conf['vocabulary']) || !empty($conf['vocabulary'][$field_info['settings']['allowed_values'][0]['vocabulary']]))) {
            $items = field_get_items('node', $node, $name);
            if (is_array($items)) {
                foreach ($items as $item) {
                    $terms[] = $item['tid'];
                }
            }
        }
        elseif ($field_info['type'] == 'entityreference' && $field_info['settings']['target_type'] == 'taxonomy_term') {
            $items = field_get_items('node', $node, $name);
            if (is_array($items)) {
                $tids = array();
                foreach ($items as $item) {
                    $tids[] = $item['target_id'];
                }
                $term_objects = taxonomy_term_load_multiple($tids);
                foreach ($term_objects as $term) {
                    if (empty($conf['vocabulary']) || in_array($term->vocabulary_machine_name, $conf['vocabulary'])) {
                        $terms[] = $term->tid;
                    }
                }
            }
        }
    }
    if (!empty($terms)) {
        $all_terms = ctools_break_phrase(implode($conf['concatenator'], $terms));
        return ctools_context_create('terms', $all_terms);
    }
}

/**
 * Settings form for the relationship.
 */
function ctools_terms_from_node_settings_form($form, &$form_state) {
    $conf = $form_state['conf'];
    $options = array();
    foreach (taxonomy_vocabulary_get_names() as $name => $vocabulary) {
        $options[$name] = $vocabulary->name;
    }
    $form['vocabulary'] = array(
        '#title' => t('Vocabulary'),
        '#type' => 'checkboxes',
        '#options' => $options,
        '#default_value' => $conf['vocabulary'],
        '#prefix' => '<div class="clearfix">',
        '#suffix' => '</div>',
    );
    $form['concatenator'] = array(
        '#title' => t('Concatenator'),
        '#type' => 'select',
        '#options' => array(
            ',' => ', (AND)',
            '+' => '+ (OR)',
        ),
        '#default_value' => $conf['concatenator'],
        '#prefix' => '<div class="clearfix">',
        '#suffix' => '</div>',
        '#description' => t("When the value from this context is passed on to a view as argument, the terms can be concatenated in the form of 1+2+3 (for OR) or 1,2,3 (for AND)."),
    );
    return $form;
}