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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 node type.
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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("Node: type"),
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'description' => t('Control access by node_type.'),
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'callback' => 'ctools_node_type_ctools_access_check',
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'default' => array('type' => array()),
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'settings form' => 'ctools_node_type_ctools_access_settings',
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'settings form submit' => 'ctools_node_type_ctools_access_settings_submit',
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'summary' => 'ctools_node_type_ctools_access_summary',
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'required context' => new ctools_context_required(t('Node'), 'node'),
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'restrictions' => 'ctools_node_type_ctools_access_restrictions',
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);
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/**
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* Settings form for the 'by node_type' access plugin.
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*/
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function ctools_node_type_ctools_access_settings($form, &$form_state, $conf) {
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$types = node_type_get_types();
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foreach ($types as $type => $info) {
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$options[$type] = check_plain($info->name);
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}
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$form['settings']['type'] = array(
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'#title' => t('Node type'),
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'#type' => 'checkboxes',
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'#options' => $options,
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'#description' => t('Only the checked node types will be valid.'),
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'#default_value' => $conf['type'],
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);
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return $form;
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}
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/**
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* Compress the node_types allowed to the minimum.
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*/
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function ctools_node_type_ctools_access_settings_submit($form, &$form_state) {
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$form_state['values']['settings']['type'] = array_filter($form_state['values']['settings']['type']);
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}
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/**
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* Check for access.
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*/
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function ctools_node_type_ctools_access_check($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->type)) {
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return FALSE;
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}
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if (array_filter($conf['type']) && empty($conf['type'][$context->data->type])) {
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return FALSE;
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}
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return TRUE;
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}
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/**
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* Inform the UI that we've eliminated a bunch of possibilities for this
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* context.
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*/
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function ctools_node_type_ctools_access_restrictions($conf, &$context) {
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if (isset($context->restrictions['type'])) {
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$context->restrictions['type'] = array_unique(array_merge($context->restrictions['type'], array_keys(array_filter($conf['type']))));
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}
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else {
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$context->restrictions['type'] = array_keys(array_filter($conf['type']));
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}
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}
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/**
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* Provide a summary description based upon the checked node_types.
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*/
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function ctools_node_type_ctools_access_summary($conf, $context) {
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if (!isset($conf['type'])) {
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$conf['type'] = array();
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}
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$types = node_type_get_types();
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$names = array();
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// If a node type doesn't exist, let the user know, but prevent a notice.
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$missing_types = array();
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foreach (array_filter($conf['type']) as $type) {
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if (!empty($types[$type])) {
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$names[] = check_plain($types[$type]->name);
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}
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else {
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$missing_types[] = check_plain($type);
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}
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}
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if (empty($names) && empty($missing_types)) {
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return t('@identifier is any node type', array('@identifier' => $context->identifier));
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}
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if (!empty($missing_types)) {
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$output = array();
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if (!empty($names)) {
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$output[] = format_plural(count($names), '@identifier is type "@types"', '@identifier type is one of "@types"', array('@types' => implode(', ', $names), '@identifier' => $context->identifier));
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}
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$output[] = format_plural(count($missing_types), 'Missing/ deleted type "@types"', 'Missing/ deleted type is one of "@types"', array('@types' => implode(', ', $missing_types)));
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return implode(' | ', $output);
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}
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return format_plural(count($names), '@identifier is type "@types"', '@identifier type is one of "@types"', array('@types' => implode(', ', $names), '@identifier' => $context->identifier));
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}
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