Merge pull request #99 from sheershoff/master

Added findAllByPk method to EMongoDocument

EMongoDocument.php

@@ -576,6 +576,21 @@ public function findOne($criteria=array(),$fields=array()){
     public function findAll($criteria=array(),$fields=array()){
     	return $this->find ($criteria,$fields);
     }
+
+	/**
+	 * Finds all records based on $pk
+	 * @param mixed $pk String, MongoID or array of strings or MongoID values (one can mix strings and MongoID in the array)
+	 */
+    public function findAllByPk($pk=array(),$fields=array()){
+            if(is_string($pk)){
+                    return $this->find (array($this->primaryKey() => $this->getPrimaryKey($pk)),$fields);
+            }else if(is_array($pk)){
+                    foreach($pk as $k=>$v){
+                        $pk[$k] = $this->getPrimaryKey($v);
+                    }
+                    return $this->find (array($this->primaryKey() => array('$in' => $pk)),$fields);
+            }
+    }
 
 	/**
 	 * Find some records