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<?php
/**
* @file
* Plugin to provide access control based upon specific terms.
*/
/**
* Plugins are described by creating a $plugin array which will be used
* by the system that includes this file.
*/
$plugin = array(
'title' => t("Taxonomy: term"),
'description' => t('Control access by a specific term.'),
'callback' => 'ctools_term_ctools_access_check',
'default' => array('vids' => array()),
'settings form' => 'ctools_term_ctools_access_settings',
'settings form validation' => 'ctools_term_ctools_access_settings_validate',
'settings form submit' => 'ctools_term_ctools_access_settings_submit',
'summary' => 'ctools_term_ctools_access_summary',
'required context' => new ctools_context_required(t('Term'), array('taxonomy_term', 'terms')),
);
/**
* Settings form for the 'by term' access plugin
*/
function ctools_term_ctools_access_settings($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.'),
'#id' => 'ctools-select-vid',
'#default_value' => $conf['vid'],
'#required' => TRUE,
);
ctools_include('dependent');
$options = array();
// A note: Dependency works strangely on these forms as they have never been
// updated to a more modern system so they are not individual forms of their
// own like the content types.
$form['settings']['#tree'] = TRUE;
// Loop over each of the configured vocabularies.
foreach (taxonomy_get_vocabularies() as $vid => $vocabulary) {
$options[$vid] = $vocabulary->name;
$form['settings'][$vocabulary->vid] = array(
'#title' => t('Terms'),
'#description' => t('Select a term or terms from @vocabulary.', array('@vocabulary' => $vocabulary->name)), //. $description,
'#dependency' => array('ctools-select-vid' => array($vocabulary->vid)),
'#default_value' => !empty($conf[$vid]) ? $conf[$vid] : '',
'#multiple' => TRUE,
);
$terms = array();
foreach (taxonomy_get_tree($vocabulary->vid) as $tid => $term) {
$terms[$term->tid] = str_repeat('-', $term->depth) . ($term->depth ? ' ' : '') . $term->name;
}
$form['settings'][$vocabulary->vid]['#type'] = 'select';
$form['settings'][$vocabulary->vid]['#options'] = $terms;
unset($terms);
}
$form['settings']['vid']['#options'] = $options;
return $form;
}
/**
* Check for access.
*/
function ctools_term_ctools_access_check($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 = $conf['vid'];
// Get the terms.
if (!isset($conf[$vid])) {
return FALSE;
}
$return = FALSE;
$terms = array_filter($conf[$vid]);
// For multi-term if any terms coincide, let's call that good enough:
if (isset($context->tids)) {
return (bool) array_intersect($terms, $context->tids);
}
else {
return in_array($context->data->tid, $terms);
}
}
/**
* Provide a summary description based upon the checked terms.
*/
function ctools_term_ctools_access_summary($conf, $context) {
$vid = $conf['vid'];
$terms = array();
foreach ($conf[$vid] as $tid) {
$term = taxonomy_term_load($tid);
$terms[] = $term->name;
}
return format_plural(count($terms),
'@term can be the term "@terms"',
'@term can be one of these terms: @terms',
array('@terms' => implode(', ', $terms),
'@term' => $context->identifier));
}
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