danielebarchiesi@0: <?php
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * @file
danielebarchiesi@0:  * Plugin to provide an relationship handler for all terms from node.
danielebarchiesi@0:  */
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Plugins are described by creating a $plugin array which will be used
danielebarchiesi@0:  * by the system that includes this file.
danielebarchiesi@0:  */
danielebarchiesi@0: $plugin = array(
danielebarchiesi@0:   'title' => t('Multiple terms from node'),
danielebarchiesi@0:   'keyword' => 'terms',
danielebarchiesi@0:   'description' => t('Adds a taxonomy terms from a node context; if multiple terms are selected, they wil be concatenated.'),
danielebarchiesi@0:   'required context' => new ctools_context_required(t('Node'), 'node'),
danielebarchiesi@0:   'context' => 'ctools_terms_from_node_context',
danielebarchiesi@0:   'edit form' => 'ctools_terms_from_node_settings_form',
danielebarchiesi@0:   'defaults' => array('vocabulary' => array(), 'concatenator' => ','),
danielebarchiesi@0: );
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Return a new context based on an existing context.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_terms_from_node_context($context, $conf) {
danielebarchiesi@0:   // If unset it wants a generic, unfilled context, which is just NULL.
danielebarchiesi@0:   if (empty($context->data)) {
danielebarchiesi@0:     return ctools_context_create_empty('terms', NULL);
danielebarchiesi@0:   }
danielebarchiesi@0: 
danielebarchiesi@0:   // Collect all terms for the chosen vocabulary and concatenate them.
danielebarchiesi@0:   $node = $context->data;
danielebarchiesi@0:   $terms = array();
danielebarchiesi@0:   
danielebarchiesi@0:   $fields = field_info_instances('node', $node->type);
danielebarchiesi@0:   foreach ($fields as $name => $info) {
danielebarchiesi@0:     $field_info = field_info_field($name);
danielebarchiesi@0:     if ($field_info['type'] == 'taxonomy_term_reference' && (empty($conf['vocabulary']) || $conf['vocabulary'][$field_info['settings']['allowed_values'][0]['vocabulary']])) {
danielebarchiesi@0:       $items = field_get_items('node', $node, $name);
danielebarchiesi@0:       if (is_array($items)) {
danielebarchiesi@0:         foreach ($items as $item) {
danielebarchiesi@0:           $terms[] = $item['tid'];
danielebarchiesi@0:         }
danielebarchiesi@0:       }
danielebarchiesi@0:     }
danielebarchiesi@0:   }
danielebarchiesi@0:   
danielebarchiesi@0:   if (!empty($terms)) {
danielebarchiesi@0:     $all_terms = ctools_break_phrase(implode($conf['concatenator'], $terms));
danielebarchiesi@0:     return ctools_context_create('terms', $all_terms);
danielebarchiesi@0:   }
danielebarchiesi@0: }
danielebarchiesi@0: 
danielebarchiesi@0: /**
danielebarchiesi@0:  * Settings form for the relationship.
danielebarchiesi@0:  */
danielebarchiesi@0: function ctools_terms_from_node_settings_form($form, &$form_state) {
danielebarchiesi@0:   $conf = $form_state['conf'];
danielebarchiesi@0: 
danielebarchiesi@0:   $options = array();
danielebarchiesi@0:   foreach (taxonomy_vocabulary_get_names() as $name => $vocabulary) {
danielebarchiesi@0:     $options[$name] = $vocabulary->name;
danielebarchiesi@0:   }
danielebarchiesi@0:   $form['vocabulary'] = array(
danielebarchiesi@0:     '#title' => t('Vocabulary'),
danielebarchiesi@0:     '#type' => 'checkboxes',
danielebarchiesi@0:     '#options' => $options,
danielebarchiesi@0:     '#default_value' => $conf['vocabulary'],
danielebarchiesi@0:     '#prefix' => '<div class="clearfix">',
danielebarchiesi@0:     '#suffix' => '</div>',
danielebarchiesi@0:   );
danielebarchiesi@0:   $form['concatenator'] = array(
danielebarchiesi@0:     '#title' => t('Concatenator'),
danielebarchiesi@0:     '#type' => 'select',
danielebarchiesi@0:     '#options' => array(',' => ', (AND)', '+' => '+ (OR)'),
danielebarchiesi@0:     '#default_value' => $conf['concatenator'],
danielebarchiesi@0:     '#prefix' => '<div class="clearfix">',
danielebarchiesi@0:     '#suffix' => '</div>',
danielebarchiesi@0:     '#description' => t("When the value from this context is passed on to a view as argument, the terms can be concatenated in the form of 1+2+3 (for OR) or 1,2,3 (for AND)."),
danielebarchiesi@0:   );
danielebarchiesi@0: 
danielebarchiesi@0:   return $form;
danielebarchiesi@0: }