first import

sites/all/modules/ctools/plugins/access/term_parent.inc

@@ -0,0 +1,86 @@
+<?php
+
+/**
+ * @file
+ * Plugin to provide access control based upon a parent term.
+ */
+
+/**
+ * Plugins are described by creating a $plugin array which will be used
+ * by the system that includes this file.
+ */
+$plugin = array(
+  'title' => t("Taxonomy: parent term"),
+  'description' => t('Control access by existence of a parent term.'),
+  'callback' => 'ctools_term_parent_ctools_access_check',
+  'default' => array('vid' => array(), 'negate' => 0),
+  'settings form' => 'ctools_term_parent_ctools_access_settings',
+  'settings form validation' => 'ctools_term_parent_ctools_access_settings_validate',
+  'settings form submit' => 'ctools_term_parent_ctools_access_settings_submit',
+  'summary' => 'ctools_term_parent_ctools_access_summary',
+  'required context' => new ctools_context_required(t('Term'), array('taxonomy_term', 'terms')),
+);
+
+/**
+ * Settings form for the 'by parent term' access plugin
+ */
+function ctools_term_parent_ctools_access_settings($form, &$form_state, $conf) {
+  // If no configuration was saved before, set some defaults.
+  if (empty($conf)) {
+    $conf = array(
+      'vid' => 0,
+    );
+  }
+  if (!isset($conf['vid'])) {
+    $conf['vid'] = 0;
+  }
+
+  $form['settings']['vid'] = array(
+    '#title' => t('Vocabulary'),
+    '#type' => 'select',
+    '#options' => array(),
+    '#description' => t('Select the vocabulary for this form. If there exists a parent term in that vocabulary, this access check will succeed.'),
+    '#id' => 'ctools-select-vid',
+    '#default_value' => $conf['vid'],
+    '#required' => TRUE,
+  );
+
+  $options = array();
+
+  // Loop over each of the configured vocabularies.
+  foreach (taxonomy_get_vocabularies() as $vid => $vocabulary) {
+    $options[$vid] = $vocabulary->name;
+  }
+  $form['settings']['vid']['#options'] = $options;
+  return $form;
+}
+
+/**
+ * Check for access.
+ */
+function ctools_term_parent_ctools_access_check($conf, $context) {
+  // As far as I know there should always be a context at this point, but this
+  // is safe.
+  if (empty($context) || empty($context->data) || empty($context->data->vid) || empty($context->data->tid)) {
+    return FALSE;
+  }
+
+  // Get the $vid.
+  if (!isset($conf['vid'])) {
+    return FALSE;
+  }
+  $vid = $conf['vid'];
+
+  $count = db_query('SELECT COUNT(*) FROM {taxonomy_term_hierarchy} th INNER JOIN {taxonomy_term_data} td ON th.parent = td.tid WHERE th.tid = :tid AND td.vid = :vid', array(':tid' => $context->data->tid, ':vid' => $vid))->fetchField();
+
+  return $count ? TRUE : FALSE;
+}
+
+/**
+ * Provide a summary description based upon the checked terms.
+ */
+function ctools_term_parent_ctools_access_summary($conf, $context) {
+  $vocab = taxonomy_vocabulary_load($conf['vid']);
+
+  return t('"@term" has parent in vocabulary "@vocab"', array('@term' => $context->identifier, '@vocab' => $vocab->name));
+}