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<?php
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/**
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* @file
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* Definition of views_handler_field_node_new_comments.
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*/
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/**
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* Field handler to display the number of new comments.
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*
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* @ingroup views_field_handlers
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*/
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class views_handler_field_node_new_comments extends views_handler_field_numeric {
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/**
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* {@inheritdoc}
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*/
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public function init(&$view, &$options) {
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parent::init($view, $options);
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// Translate an older setting.
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if (!empty($options['no_empty'])) {
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$this->options['hide_empty'] = TRUE;
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unset($this->options['no_empty']);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function construct() {
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parent::construct();
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$this->additional_fields['nid'] = 'nid';
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$this->additional_fields['type'] = 'type';
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$this->additional_fields['comment_count'] = array('table' => 'node_comment_statistics', 'field' => 'comment_count');
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}
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/**
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* {@inheritdoc}
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*/
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public function option_definition() {
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$options = parent::option_definition();
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$options['link_to_comment'] = array('default' => TRUE, 'bool' => TRUE);
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return $options;
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}
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/**
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* {@inheritdoc}
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*/
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public function options_form(&$form, &$form_state) {
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$form['link_to_comment'] = array(
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'#title' => t('Link this field to new comments'),
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'#description' => t("Enable to override this field's links."),
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'#type' => 'checkbox',
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'#default_value' => $this->options['link_to_comment'],
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);
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parent::options_form($form, $form_state);
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}
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/**
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* {@inheritdoc}
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*/
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public function query() {
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$this->ensure_my_table();
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$this->add_additional_fields();
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$this->field_alias = $this->table . '_' . $this->field;
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}
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/**
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* {@inheritdoc}
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*/
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public function pre_render(&$values) {
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global $user;
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if (!$user->uid || empty($values)) {
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return;
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}
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$nids = array();
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$ids = array();
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foreach ($values as $id => $result) {
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$nids[] = $result->{$this->aliases['nid']};
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$values[$id]->{$this->field_alias} = 0;
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// Create a reference so we can find this record in the values again.
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if (empty($ids[$result->{$this->aliases['nid']}])) {
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$ids[$result->{$this->aliases['nid']}] = array();
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}
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$ids[$result->{$this->aliases['nid']}][] = $id;
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}
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if ($nids) {
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$result = db_query("SELECT n.nid, COUNT(c.cid) as num_comments FROM {node} n INNER JOIN {comment} c ON n.nid = c.nid
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LEFT JOIN {history} h ON h.nid = n.nid AND h.uid = :h_uid WHERE n.nid IN (:nids)
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AND c.changed > GREATEST(COALESCE(h.timestamp, :timestamp), :timestamp) AND c.status = :status GROUP BY n.nid ", array(
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':status' => COMMENT_PUBLISHED,
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':h_uid' => $user->uid,
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':nids' => $nids,
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':timestamp' => NODE_NEW_LIMIT,
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));
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foreach ($result as $node) {
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foreach ($ids[$node->nid] as $id) {
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$values[$id]->{$this->field_alias} = $node->num_comments;
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}
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function render_link($data, $values) {
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if (!empty($this->options['link_to_comment']) && $data !== NULL && $data !== '') {
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$node = new stdClass();
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$node->nid = $this->get_value($values, 'nid');
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$node->type = $this->get_value($values, 'type');
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$this->options['alter']['make_link'] = TRUE;
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$this->options['alter']['path'] = 'node/' . $node->nid;
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$this->options['alter']['query'] = comment_new_page_count($this->get_value($values, 'comment_count'), $this->get_value($values), $node);
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$this->options['alter']['fragment'] = 'new';
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}
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return $data;
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}
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/**
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* {@inheritdoc}
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*/
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public function render($values) {
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$value = $this->get_value($values);
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if (!empty($value)) {
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return $this->render_link(parent::render($values), $values);
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}
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else {
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$this->options['alter']['make_link'] = FALSE;
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}
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}
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}
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