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-rw-r--r--kolab.org/www/drupal-7.15/sites/all/modules/views/modules/node/views_handler_field_node_revision_link.inc66
1 files changed, 66 insertions, 0 deletions
diff --git a/kolab.org/www/drupal-7.15/sites/all/modules/views/modules/node/views_handler_field_node_revision_link.inc b/kolab.org/www/drupal-7.15/sites/all/modules/views/modules/node/views_handler_field_node_revision_link.inc
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index 0000000..69047bb
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+++ b/kolab.org/www/drupal-7.15/sites/all/modules/views/modules/node/views_handler_field_node_revision_link.inc
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+<?php
+
+/**
+ * @file
+ * Definition of views_handler_field_node_revision_link.
+ */
+
+/**
+ * Field handler to present a link to a node revision.
+ *
+ * @ingroup views_field_handlers
+ */
+class views_handler_field_node_revision_link extends views_handler_field_node_link {
+
+ function construct() {
+ parent::construct();
+ $this->additional_fields['node_vid'] = array('table' => 'node_revision', 'field' => 'vid');
+ }
+
+ function access() {
+ return user_access('view revisions') || user_access('administer nodes');
+ }
+
+ function render_link($data, $values) {
+ list($node, $vid) = $this->get_revision_entity($values, 'view');
+ if (!isset($vid)) {
+ return;
+ }
+
+ // Current revision uses the node view path.
+ $path = 'node/' . $node->nid;
+ if ($node->vid != $vid) {
+ $path .= "/revisions/$vid/view";
+ }
+
+ $this->options['alter']['make_link'] = TRUE;
+ $this->options['alter']['path'] = $path;
+ $this->options['alter']['query'] = drupal_get_destination();
+
+ return !empty($this->options['text']) ? $this->options['text'] : t('view');
+ }
+
+ /**
+ * Returns the revision values of a node.
+ *
+ * @param object $values
+ * An object containing all retrieved values.
+ * @param string $op
+ * The operation being performed.
+ *
+ * @return array
+ * A numerically indexed array containing the current node object and the
+ * revision ID for this row.
+ */
+ function get_revision_entity($values, $op) {
+ $vid = $this->get_value($values, 'node_vid');
+ $node = $this->get_value($values);
+ // Unpublished nodes ignore access control.
+ $node->status = 1;
+ // Ensure user has access to perform the operation on this node.
+ if (!node_access($op, $node)) {
+ return array($node, NULL);
+ }
+ return array($node, $vid);
+ }
+}