Fixes #3058 pulls likes out as a plugin

git-svn-id: http://code.elgg.org/elgg/trunk@8639 36083f99-b078-4883-b0ff-0f9b5a30f544

2 files changed, 93 insertions, 0 deletions

diff --git a/mod/likes/actions/likes/add.php b/mod/likes/actions/likes/add.php
new file mode 100644
index 000000000..f56493864
--- /dev/null
+++ b/mod/likes/actions/likes/add.php
@@ -0,0 +1,64 @@
+<?php
+/**
+ * Elgg add like action
+ *
+ */
+
+$entity_guid = (int) get_input('guid');
+
+//check to see if the user has already liked the item
+if (elgg_annotation_exists($entity_guid, 'likes')) {
+	system_message(elgg_echo("likes:alreadyliked"));
+	forward(REFERER);
+}
+// Let's see if we can get an entity with the specified GUID
+$entity = get_entity($entity_guid);
+if (!$entity) {
+	register_error(elgg_echo("likes:notfound"));
+	forward(REFERER);
+}
+
+// cannot like your own stuff
+if (!$entity->canAnnotate(0, 'likes')) {
+	// plugins should register the error message to explain why liking isn't allowed
+	forward(REFERER);
+}
+
+$user = elgg_get_logged_in_user_entity();
+$annotation = create_annotation($entity->guid,
+								'likes',
+								"likes",
+								"",
+								$user->guid,
+								$entity->access_id);
+
+// tell user annotation didn't work if that is the case
+if (!$annotation) {
+	register_error(elgg_echo("likes:failure"));
+	forward(REFERER);
+}
+
+// notify if poster wasn't owner
+if ($entity->owner_guid != $user->guid) {
+
+	notify_user($entity->owner_guid,
+				$user->guid,
+				elgg_echo('likes:email:subject'),
+				elgg_echo('likes:email:body', array(
+					$user->name,
+					$entity->title,
+					//$comment_text,
+					$entity->getURL(),
+					$user->name,
+					$user->getURL()
+				))
+			);
+}
+
+system_message(elgg_echo("likes:likes"));
+
+//add to river
+add_to_river('annotation/annotatelike', 'likes', $user->guid, $entity->guid, "", 0, $annotation);
+
+// Forward back to the page where the user 'liked' the object
+forward(REFERER);
diff --git a/mod/likes/actions/likes/delete.php b/mod/likes/actions/likes/delete.php
new file mode 100644
index 000000000..867d5dfef
--- /dev/null
+++ b/mod/likes/actions/likes/delete.php
@@ -0,0 +1,29 @@
+<?php
+/**
+ * Elgg delete like action
+ *
+ */
+
+// Ensure we're logged in
+if (!elgg_is_logged_in()) {
+	forward();
+}
+
+// Make sure we can get the comment in question
+$annotation_id = (int) get_input('annotation_id');
+if ($likes = elgg_get_annotation_from_id($annotation_id)) {
+
+	$entity = get_entity($likes->entity_guid);
+
+	if ($likes->canEdit()) {
+		$likes->delete();
+		system_message(elgg_echo("likes:deleted"));
+		forward(REFERER);
+	}
+
+} else {
+	$url = "";
+}
+
+register_error(elgg_echo("likes:notdeleted"));
+forward(REFERER);
\ No newline at end of file