From a3f0353600e749a16abbdab3cbc75b3469d6fd69 Mon Sep 17 00:00:00 2001
From: Brett Profitt <brett.profitt@gmail.com>
Date: Tue, 10 Jan 2012 16:54:49 -0800
Subject: Fixes #4269. Not using ElggBatch to delete metadata / annotations.
 Added unit tests for deleting annotations/md. Fixed an annoying inconsistency
 with "metastring/s" option in private functions.

---
 engine/lib/annotations.php       |  2 +-
 engine/lib/metadata.php          |  2 +-
 engine/lib/metastrings.php       | 32 ++++++++++++++++++++++++++++++--
 engine/tests/api/annotations.php | 24 ++++++++++++++++++++++++
 engine/tests/api/metadata.php    | 25 +++++++++++++++++++++++++
 5 files changed, 81 insertions(+), 4 deletions(-)

diff --git a/engine/lib/annotations.php b/engine/lib/annotations.php
index 7eb72612f..5049d455b 100644
--- a/engine/lib/annotations.php
+++ b/engine/lib/annotations.php
@@ -237,7 +237,7 @@ function elgg_disable_annotations(array $options) {
 		return false;
 	}
 
-	$options['metastrings_type'] = 'annotations';
+	$options['metastring_type'] = 'annotations';
 	return elgg_batch_metastring_based_objects($options, 'elgg_batch_disable_callback');
 }
 
diff --git a/engine/lib/metadata.php b/engine/lib/metadata.php
index a097cd3ef..19e8aa3c8 100644
--- a/engine/lib/metadata.php
+++ b/engine/lib/metadata.php
@@ -324,7 +324,7 @@ function elgg_disable_metadata(array $options) {
 		return false;
 	}
 
-	$options['metastrings_type'] = 'metadata';
+	$options['metastring_type'] = 'metadata';
 	return elgg_batch_metastring_based_objects($options, 'elgg_batch_disable_callback');
 }
 
diff --git a/engine/lib/metastrings.php b/engine/lib/metastrings.php
index d8fef6f1c..62b60e279 100644
--- a/engine/lib/metastrings.php
+++ b/engine/lib/metastrings.php
@@ -727,10 +727,38 @@ function elgg_batch_metastring_based_objects(array $options, $callback) {
 		return false;
 	}
 
-	$batch = new ElggBatch('elgg_get_metastring_based_objects', $options, $callback);
-	$r = $batch->callbackResult;
+	switch($options['metastring_type']) {
+		case 'metadata':
+			$objects = elgg_get_metadata($options);
+			break;
+
+		case 'annotations':
+			$objects = elgg_get_annotations($options);
+			break;
+
+		default:
+			return false;
+	}
+
+	if (!is_array($objects)) {
+		$r = false;
+	} elseif (empty($objects)) {
+		// ElggBatch returns null if the results are an empty array
+		$r = null;
+	} else {
+		$r = true;
+		foreach($objects as $object) {
+			$r = $r && $callback($object);
+		}
+	}
 
 	return $r;
+
+//	// @todo restore once ElggBatch supports callbacks that delete rows.
+//	$batch = new ElggBatch('elgg_get_metastring_based_objects', $options, $callback);
+//	$r = $batch->callbackResult;
+//
+//	return $r;
 }
 
 /**
diff --git a/engine/tests/api/annotations.php b/engine/tests/api/annotations.php
index d7551a0fa..947292970 100644
--- a/engine/tests/api/annotations.php
+++ b/engine/tests/api/annotations.php
@@ -43,4 +43,28 @@ class ElggCoreAnnotationAPITest extends ElggCoreUnitTest {
 
 		$this->object->delete();
 	}
+
+	public function testElggDeleteAnnotations() {
+		$e = new ElggObject();
+		$e->save();
+
+		for ($i=0; $i<30; $i++) {
+			$e->annotate('test_annotation', rand(0,10000));
+		}
+
+		$options = array(
+			'guid' => $e->getGUID(),
+			'limit' => 0
+		);
+
+		$annotations = elgg_get_annotations($options);
+		$this->assertIdentical(30, count($annotations));
+
+		$this->assertTrue(elgg_delete_annotations($options));
+
+		$annotations = elgg_get_annotations($options);
+		$this->assertTrue(empty($annotations));
+
+		$this->assertTrue($e->delete());
+	}
 }
diff --git a/engine/tests/api/metadata.php b/engine/tests/api/metadata.php
index f5b615ca8..be8ac269c 100644
--- a/engine/tests/api/metadata.php
+++ b/engine/tests/api/metadata.php
@@ -99,6 +99,31 @@ class ElggCoreMetadataAPITest extends ElggCoreUnitTest {
 		$this->object->delete();
 	}
 
+	public function testElggDeleteMetadata() {
+		$e = new ElggObject();
+		$e->save();
+
+		for ($i=0; $i<30; $i++) {
+			$name = "test_metadata" . rand(0, 10000);
+			$e->$name = rand(0, 10000);
+		}
+
+		$options = array(
+			'guid' => $e->getGUID(),
+			'limit' => 0
+		);
+
+		$md = elgg_get_metadata($options);
+		$this->assertIdentical(30, count($md));
+
+		$this->assertTrue(elgg_delete_metadata($options));
+
+		$md = elgg_get_metadata($options);
+		$this->assertTrue(empty($md));
+
+		$e->delete();
+	}
+
 
 	protected function create_metastring($string) {
 		global $CONFIG, $METASTRINGS_CACHE, $METASTRINGS_DEADNAME_CACHE;
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