Refactor the database query class.

system/db/query.php

@@ -527,20 +527,11 @@ class Query {
 
 		$sql = $this->select.' '.$this->from.' '.$this->where;
 
-		if (count($this->orderings) > 0)
-		{
-			$sql .= ' ORDER BY '.implode(', ', $this->orderings);
-		}
+		if (count($this->orderings) > 0) $sql .= ' ORDER BY '.implode(', ', $this->orderings);
 
-		if ( ! is_null($this->limit))
-		{
-			$sql .= ' LIMIT '.$this->limit;
-		}
+		if ( ! is_null($this->limit)) $sql .= ' LIMIT '.$this->limit;
 
-		if ( ! is_null($this->offset))
-		{
-			$sql .= ' OFFSET '.$this->offset;
-		}
+		if ( ! is_null($this->offset)) $sql .= ' OFFSET '.$this->offset;
 
 		$results = $this->connection->query($sql, $this->bindings);
 
@@ -689,13 +680,11 @@ class Query {
 	 */
 	public function __call($method, $parameters)
 	{
-		// Dynamically handle the addition of dynamic where clauses.
 		if (strpos($method, 'where_') === 0)
 		{
 			return $this->dynamic_where($method, $parameters, $this);
 		}
 
-		// Dynamically handle calls to any of the aggregate query functions.
 		if (in_array($method, array('count', 'min', 'max', 'avg', 'sum')))
 		{
 			return ($method == 'count') ? $this->aggregate(strtoupper($method), '*') : $this->aggregate(strtoupper($method), $parameters[0]);