Refs #3195. Changed the way annotation calculations are performed. Seems to be working better, but will want to test more before closing.

git-svn-id: http://code.elgg.org/elgg/trunk@9000 36083f99-b078-4883-b0ff-0f9b5a30f544

3 files changed, 40 insertions, 21 deletions

diff --git a/engine/lib/annotations.php b/engine/lib/annotations.php
index 1178a079f..7a4e62921 100644
--- a/engine/lib/annotations.php
+++ b/engine/lib/annotations.php
@@ -386,21 +386,27 @@ function elgg_list_entities_from_annotations($options = array()) {
 }
 
 /**
- * Get entities ordered by a mathematical calculation
+ * Get entities ordered by a mathematical calculation on annotation values
+ *
+ * @todo I think at some point this could run through elgg_get_annotations() and pass a the callback
+ * as entity_row_to_elggstar
  *
  * @param array $options An options array:
- * 	'calculation' => The calculation to use. Must be a valid MySQL function.
- *                   Defaults to sum.  Result selected as 'calculated'.
- *	'order_by'    => The order for the sorting. Defaults to 'calculated desc'.
+ * 	'annotation_calculation' => The calculation to use. Must be a valid MySQL function.
+ *                              Defaults to sum.  Result selected as 'annotation_calculation'.
+ *	'order_by'               => The order for the sorting. Defaults to 'calculation desc'.
+ *	'annotation_names'       => The names of annotations on the entity.
+ *	'annotation_values'	     => The values of annotations on the entity.
+ *
+ *	'metadata_names'         => The name of metadata on the entity.
+ *	'metadata_values'        => The value of metadata on the entitiy.
  *
  * @return mixed
  */
 function elgg_get_entities_from_annotation_calculation($options) {
-	global $CONFIG;
-
 	$defaults = array(
-		'calculation'	=>	'sum',
-		'order_by'		=>	'calculated desc',
+		'calculation' => 'sum',
+		'order_by' => 'calculation desc'
 	);
 
 	$options = array_merge($defaults, $options);
@@ -408,17 +414,20 @@ function elgg_get_entities_from_annotation_calculation($options) {
 	$function = sanitize_string(elgg_extract('calculation', $options, 'sum', false));
 
 	// you must cast this as an int or it sorts wrong.
-	$options['selects'][] = "$function(cast(msv.string as signed)) as calculated";
-	$options['selects'][] = "msn.string as value";
-	$options['order_by'] = 'calculated desc';
+	$options['selects'][] = 'e.*';
+	$options['selects'][] = "$function(cast(v.string as signed)) as calculation";
 
 	// need our own join to get the values.
-	$db_prefix = get_config('dbprefix');
-	$options['joins'][] = "JOIN {$db_prefix}annotations calc_table on e.guid = calc_table.entity_guid";
-	$options['joins'][] = "JOIN {$db_prefix}metastrings msv on calc_table.value_id = msv.id";
-	$options['wheres'][] = "calc_table.name_id = n_table.name_id";
+//	$options['joins'][] = "JOIN {$db_prefix}metastrings msv ON a.value_id = msv.id";
+//	$options['joins'][] = "JOIN {$db_prefix}entities ae ON a.entity_guid = ae.guid";
+
+	$options['wheres'][] = get_access_sql_suffix('n_table');
+//	$options['wheres'][] = "e.guid = a.entity_guid";
+	$options['group_by'] = 'n_table.entity_guid';
+
+	$options['callback'] = 'entity_row_to_elggstar';
 
-	return elgg_get_entities_from_annotations($options);
+	return elgg_get_annotations($options);
 }
 
 /**
diff --git a/engine/lib/deprecated-1.8.php b/engine/lib/deprecated-1.8.php
index 165546d31..27a973601 100644
--- a/engine/lib/deprecated-1.8.php
+++ b/engine/lib/deprecated-1.8.php
@@ -115,7 +115,7 @@ function get_entities_from_annotations_calculate_x($sum = "sum", $entity_type =
 	$options['limit'] = $limit;
 	$options['offset'] = $offset;
 
-	$options['order_by'] = "calculated $orderdir";
+	$options['order_by'] = "calculation $orderdir";
 
 	$options['count'] = $count;
 
@@ -179,7 +179,7 @@ function get_entities_from_annotation_count($entity_type = "", $entity_subtype =
 	$options['limit'] = $limit;
 	$options['offset'] = $offset;
 
-	$options['order_by'] = "calculated $orderdir";
+	$options['order_by'] = "calculation $orderdir";
 
 	$options['count'] = $count;
 
@@ -241,7 +241,7 @@ function list_entities_from_annotation_count($entity_type = "", $entity_subtype
 
 	$options['limit'] = $limit;
 
-	$options['order_by'] = "calculated $orderdir";
+	$options['order_by'] = "calculation $orderdir";
 
 	return elgg_get_entities_from_annotation_calculation($options);
 }
@@ -3492,7 +3492,7 @@ $asc = false, $fullview = true, $listtypetoggle = false, $pagination = true, $or
 
 	$options['limit'] = $limit;
 
-	$options['order_by'] = "calculated $orderdir";
+	$options['order_by'] = "calculation $orderdir";
 
 	return elgg_get_entities_from_annotation_calculation($options);
 }
diff --git a/engine/lib/metastrings.php b/engine/lib/metastrings.php
index 913d33a7d..604c7f765 100644
--- a/engine/lib/metastrings.php
+++ b/engine/lib/metastrings.php
@@ -406,8 +406,18 @@ function elgg_get_metastring_based_objects($options) {
 	}
 
 	if ($options['metastring_calculation'] === ELGG_ENTITIES_NO_VALUE) {
+		// evalutate selects
+		if ($options['selects']) {
+			$selects = '';
+			foreach ($options['selects'] as $select) {
+				$selects .= ", $select";
+			}
+		} else {
+			$selects = '';
+		}
+
 		$query = "SELECT DISTINCT n_table.*, n.string as name,
-			v.string as value FROM {$db_prefix}$type n_table";
+			v.string as value{$selects} FROM {$db_prefix}$type n_table";
 	} else {
 		$query = "SELECT {$options['metastring_calculation']}(v.string) as calculation FROM {$db_prefix}$type n_table";
 	}