Added support for placeholders to delete query

library/Solarium/QueryType/Update/Query/Query.php

@@ -276,10 +276,15 @@ class Query extends BaseQuery
      * create you own command instance and use the add method.
      *
      * @param  string $query
+     * @param  array  $bind  Bind values for placeholders in the query string
      * @return self   Provides fluent interface
      */
-    public function addDeleteQuery($query)
+    public function addDeleteQuery($query, $bind = null)
     {
+        if (!is_null($bind)) {
+            $query = $this->getHelper()->assemble($query, $bind);
+        }
+
         $delete = new DeleteCommand;
         $delete->addQuery($query);
 

tests/Solarium/Tests/QueryType/Update/Query/QueryTest.php

@@ -261,6 +261,22 @@ class QueryTest extends \PHPUnit_Framework_TestCase
         );
     }
 
+    public function testAddDeleteQueryWithBind()
+    {
+        $this->query->addDeleteQuery('id:%1%', array(678));
+        $commands = $this->query->getCommands();
+
+        $this->assertEquals(
+            Query::COMMAND_DELETE,
+            $commands[0]->getType()
+        );
+
+        $this->assertEquals(
+            array('id:678'),
+            $commands[0]->getQueries()
+        );
+    }
+
     public function testAddDeleteQueries()
     {
         $this->query->addDeleteQueries(array('id:1','id:2'));