1 files changed, 89 insertions, 0 deletions
diff --git a/mod/blog/actions/blog/auto_save_revision.php b/mod/blog/actions/blog/auto_save_revision.php
new file mode 100644
index 000000000..e33edfaab
--- /dev/null
+++ b/mod/blog/actions/blog/auto_save_revision.php
@@ -0,0 +1,89 @@
+<?php
+/**
+ * Action called by AJAX periodic auto saving when editing.
+ *
+ * @package Blog
+ */
+
+$guid = get_input('guid');
+$user = elgg_get_logged_in_user_entity();
+$title = htmlspecialchars(get_input('title', '', false), ENT_QUOTES, 'UTF-8');
+$description = get_input('description');
+$excerpt = get_input('excerpt');
+
+// because get_input() doesn't use the default if the input is ''
+if (empty($excerpt)) {
+	$excerpt = $description;
+}
+
+// store errors to pass along
+$error = FALSE;
+
+if ($title && $description) {
+
+	if ($guid) {
+		$entity = get_entity($guid);
+		if (elgg_instanceof($entity, 'object', 'blog') && $entity->canEdit()) {
+			$blog = $entity;
+		} else {
+			$error = elgg_echo('blog:error:post_not_found');
+		}
+	} else {
+		$blog = new ElggBlog();
+		$blog->subtype = 'blog';
+
+		// force draft and private for autosaves.
+		$blog->status = 'unsaved_draft';
+		$blog->access_id = ACCESS_PRIVATE;
+		$blog->title = $title;
+		$blog->description = $description;
+		$blog->excerpt = elgg_get_excerpt($excerpt);
+
+		// mark this as a brand new post so we can work out the
+		// river / revision logic in the real save action.
+		$blog->new_post = TRUE;
+
+		if (!$blog->save()) {
+			$error = elgg_echo('blog:error:cannot_save');
+		}
+	}
+
+	// creat draft annotation
+	if (!$error) {
+		// annotations don't have a "time_updated" so
+		// we have to delete everything or the times are wrong.
+
+		// don't save if nothing changed
+		if ($auto_save_annotations = $blog->getAnnotations('blog_auto_save', 1)) {
+			$auto_save = $auto_save_annotations[0];
+		} else {
+			$auto_save == FALSE;
+		}
+
+		if (!$auto_save) {
+			$annotation_id = $blog->annotate('blog_auto_save', $description);
+		} elseif ($auto_save instanceof ElggAnnotation && $auto_save->value != $description) {
+			$blog->deleteAnnotations('blog_auto_save');
+			$annotation_id = $blog->annotate('blog_auto_save', $description);
+		} elseif ($auto_save instanceof ElggAnnotation && $auto_save->value == $description) {
+			// this isn't an error because we have an up to date annotation.
+			$annotation_id = $auto_save->id;
+		}
+
+		if (!$annotation_id) {
+			$error = elgg_echo('blog:error:cannot_auto_save');
+		}
+	}
+} else {
+	$error = elgg_echo('blog:error:missing:description');
+}
+
+if ($error) {
+	$json = array('success' => FALSE, 'message' => $error);
+	echo json_encode($json);
+} else {
+	$msg = elgg_echo('blog:message:saved');
+	$json = array('success' => TRUE, 'message' => $msg, 'guid' => $blog->getGUID());
+	echo json_encode($json);
+}
+exit;