From 8d62572ff8c2b5bde2c2a933c5b0268d5984a879 Mon Sep 17 00:00:00 2001
From: Brett Profitt <brett.profitt@gmail.com>
Date: Sun, 22 Jan 2012 13:02:53 -0800
Subject: Fixes #4321. Limit alone is no longer valid for batch delete
 operations for metadata or annotations.

---
 engine/lib/annotations.php       | 4 +++-
 engine/lib/elgglib.php           | 2 +-
 engine/lib/metadata.php          | 4 ++--
 engine/tests/api/metastrings.php | 6 +++++-
 4 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/engine/lib/annotations.php b/engine/lib/annotations.php
index 5049d455b..f32dee0f0 100644
--- a/engine/lib/annotations.php
+++ b/engine/lib/annotations.php
@@ -209,9 +209,11 @@ function elgg_get_annotations(array $options = array()) {
  * Deletes annotations based on $options.
  *
  * @warning Unlike elgg_get_annotations() this will not accept an empty options array!
+ *          This requires at least one constraint: annotation_owner_guid(s),
+ *          annotation_name(s), annotation_value(s), or guid(s) must be set.
  *
  * @param array $options An options array. {@See elgg_get_annotations()}
- * @return mixed
+ * @return mixed Null if the metadata name is invalid. Bool on success or fail.
  * @since 1.8.0
  */
 function elgg_delete_annotations(array $options) {
diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php
index 38ae73d82..5a8c89a56 100644
--- a/engine/lib/elgglib.php
+++ b/engine/lib/elgglib.php
@@ -1970,7 +1970,7 @@ function elgg_is_valid_options_for_batch_operation($options, $type) {
 	// at least one of these is required.
 	$required = array(
 		// generic restraints
-		'guid', 'guids', 'limit'
+		'guid', 'guids'
 	);
 
 	switch ($type) {
diff --git a/engine/lib/metadata.php b/engine/lib/metadata.php
index f543c0fd0..012c73ad9 100644
--- a/engine/lib/metadata.php
+++ b/engine/lib/metadata.php
@@ -294,8 +294,8 @@ function elgg_get_metadata(array $options = array()) {
  * Deletes metadata based on $options.
  *
  * @warning Unlike elgg_get_metadata() this will not accept an empty options array!
- *          This requires at least one constraints: metadata_owner_guid(s),
- *          metadata_name(s), metadata_value(s), guid(s), or limit must be set.
+ *          This requires at least one constraint: metadata_owner_guid(s),
+ *          metadata_name(s), metadata_value(s), or guid(s) must be set.
  *
  * @param array $options An options array. {@see elgg_get_metadata()}
  * @return mixed Null if the metadata name is invalid. Bool on success or fail.
diff --git a/engine/tests/api/metastrings.php b/engine/tests/api/metastrings.php
index a96388217..0a8945084 100644
--- a/engine/tests/api/metastrings.php
+++ b/engine/tests/api/metastrings.php
@@ -132,7 +132,7 @@ class ElggCoreMetastringsTest extends ElggCoreUnitTest {
 	public function testKeepMeFromDeletingEverything() {
 		foreach ($this->metastringTypes as $type) {
 			$required = array(
-				'guid', 'guids', 'limit'
+				'guid', 'guids'
 			);
 
 			switch ($type) {
@@ -160,6 +160,10 @@ class ElggCoreMetastringsTest extends ElggCoreUnitTest {
 			$options = array();
 			$this->assertFalse(elgg_is_valid_options_for_batch_operation($options, $type));
 
+			// limit alone isn't valid:
+			$options = array('limit' => 10);
+			$this->assertFalse(elgg_is_valid_options_for_batch_operation($options, $type));
+
 			foreach ($required as $key) {
 				$options = array();
 
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