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<?php
/**
* @file
* Plugin to provide an relationship handler for term from view.
*/
/**
* Plugins are described by creating a $plugin array which will be used
* by the system that includes this file.
*/
$plugin = array(
'title' => t('Term from view'),
'keyword' => 'term',
'description' => t('Extract a term context from a view context of the base type term.'),
'required context' => new ctools_context_required(t('View'), 'view', array('base' => 'taxonomy_term_data')),
'context' => 'views_content_term_from_view_context',
'edit form' => 'views_content_term_from_view_settings_form',
'edit form validate' => 'views_content_term_from_view_settings_form_validate',
'defaults' => array('row' => 1),
);
/**
* Return a new context based on an existing context.
*/
function views_content_term_from_view_context($context, $conf, $placeholder = FALSE) {
// If unset it wants a generic, unfilled context, which is just NULL.
if (empty($context->data) || $placeholder) {
return ctools_context_create_empty('entity:taxonomy_term', NULL);
}
$view = views_content_context_get_view($context);
// Ensure the view executes, but we don't need its output.
views_content_context_get_output($context);
$row = intval($conf['row']) - 1;
if (isset($view->result[$row])) {
$tid = $view->result[$row]->{$view->base_field};
if ($tid) {
$term = taxonomy_term_load($tid);
return ctools_context_create('entity:taxonomy_term', $term);
}
}
return ctools_context_create_empty('entity:taxonomy_term', NULL);
}
/**
* Settings form for the relationship.
*/
function views_content_term_from_view_settings_form($form, &$form_state) {
$conf = $form_state['conf'];
$form['row'] = array(
'#title' => t('Row number'),
'#type' => 'textfield',
'#default_value' => $conf['row'],
);
return $form;
}
function views_content_term_from_view_settings_form_validate($form, &$form_state) {
if (intval($form_state['values']['row']) <= 0) {
form_error($form['row'], t('Row number must be a positive integer value.'));
}
}
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