code quality and backreference support in controllers.

laravel/database/grammar.php

@@ -30,7 +30,11 @@ abstract class Grammar {
 		{
 			$segments = explode(' ', $value);
 
-			return $this->wrap($segments[0]).' AS '.$this->wrap($segments[2]);
+			return sprintf(
+				'%s AS %s',
+				$this->wrap($segments[0]),
+				$this->wrap($segments[2])
+			);
 		}
 
 		// Since columns may be prefixed with their corresponding table

laravel/database/schema.php

@@ -75,9 +75,8 @@ class Schema {
 		}
 
 		// For some extra syntax sugar, we'll check for any implicit
-		// indexes on the table. The developer may specify the index
-		// type on the fluent column declaration. Here we'll find
-		// any implicit indexes and add the commands.
+		// indexes on the table since the developer may specify the
+		// index type on the fluent column declaration.
 		foreach ($table->columns as $column)
 		{
 			foreach (array('primary', 'unique', 'fulltext', 'index') as $key)