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<?php
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/**
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* @file
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* Plugin to provide access control based upon specific terms.
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*/
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/**
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* Plugins are described by creating a $plugin array which will be used
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* by the system that includes this file.
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*/
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$plugin = array(
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'title' => t("Taxonomy: term"),
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'description' => t('Control access by a specific term.'),
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'callback' => 'ctools_term_ctools_access_check',
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'default' => array('vids' => array()),
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'settings form' => 'ctools_term_ctools_access_settings',
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'settings form validation' => 'ctools_term_ctools_access_settings_validate',
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'settings form submit' => 'ctools_term_ctools_access_settings_submit',
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'summary' => 'ctools_term_ctools_access_summary',
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'required context' => new ctools_context_required(t('Term'), array('taxonomy_term', 'terms')),
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);
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/**
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* Settings form for the 'by term' access plugin
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*/
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function ctools_term_ctools_access_settings($form, &$form_state, $conf) {
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// If no configuration was saved before, set some defaults.
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if (empty($conf)) {
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$conf = array(
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'vid' => 0,
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);
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}
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if (!isset($conf['vid'])) {
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$conf['vid'] = 0;
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}
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$form['settings']['vid'] = array(
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'#title' => t('Vocabulary'),
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'#type' => 'select',
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'#options' => array(),
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'#description' => t('Select the vocabulary for this form.'),
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'#id' => 'ctools-select-vid',
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'#default_value' => $conf['vid'],
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'#required' => TRUE,
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);
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ctools_include('dependent');
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$options = array();
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// A note: Dependency works strangely on these forms as they have never been
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// updated to a more modern system so they are not individual forms of their
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// own like the content types.
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$form['settings']['#tree'] = TRUE;
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// Loop over each of the configured vocabularies.
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foreach (taxonomy_get_vocabularies() as $vid => $vocabulary) {
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$options[$vid] = $vocabulary->name;
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$form['settings'][$vocabulary->vid] = array(
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'#title' => t('Terms'),
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'#description' => t('Select a term or terms from @vocabulary.', array('@vocabulary' => $vocabulary->name)), //. $description,
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'#dependency' => array('ctools-select-vid' => array($vocabulary->vid)),
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'#default_value' => !empty($conf[$vid]) ? $conf[$vid] : '',
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'#multiple' => TRUE,
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);
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$terms = array();
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foreach (taxonomy_get_tree($vocabulary->vid) as $tid => $term) {
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$terms[$term->tid] = str_repeat('-', $term->depth) . ($term->depth ? ' ' : '') . $term->name;
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}
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$form['settings'][$vocabulary->vid]['#type'] = 'select';
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$form['settings'][$vocabulary->vid]['#options'] = $terms;
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unset($terms);
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}
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$form['settings']['vid']['#options'] = $options;
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return $form;
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}
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/**
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* Check for access.
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*/
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function ctools_term_ctools_access_check($conf, $context) {
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// As far as I know there should always be a context at this point, but this
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// is safe.
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if (empty($context) || empty($context->data) || empty($context->data->vid) || empty($context->data->tid)) {
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return FALSE;
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}
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// Get the $vid.
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if (!isset($conf['vid'])) {
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return FALSE;
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}
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$vid = $conf['vid'];
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// Get the terms.
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if (!isset($conf[$vid])) {
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return FALSE;
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}
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$return = FALSE;
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$terms = array_filter($conf[$vid]);
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// For multi-term if any terms coincide, let's call that good enough:
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if (isset($context->tids)) {
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return (bool) array_intersect($terms, $context->tids);
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}
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else {
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return in_array($context->data->tid, $terms);
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}
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}
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/**
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* Provide a summary description based upon the checked terms.
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*/
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function ctools_term_ctools_access_summary($conf, $context) {
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$vid = $conf['vid'];
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$terms = array();
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foreach ($conf[$vid] as $tid) {
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$term = taxonomy_term_load($tid);
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$terms[] = $term->name;
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}
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return format_plural(count($terms),
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'@term can be the term "@terms"',
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'@term can be one of these terms: @terms',
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array('@terms' => implode(', ', $terms),
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'@term' => $context->identifier));
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}
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