diff --git a/README.md b/README.md
index 38fc601..00ebf23 100644
--- a/README.md
+++ b/README.md
@@ -105,7 +105,10 @@ Observers can also take parameters in their name, much like CodeIgniter's Form V
 
     protected function data_process($row)
     {
-        $row[$this->callback_parameters[0]] = $this->_process($row[$this->callback_parameters[0]]);
+        if (is_object($row) && $row->{$this->callback_parameters[0]})//check if object then process
+          $row->{$this->callback_parameters[0]} = $this->user_model->order_by('level')->get_many($row->{$this->callback_parameters[0]});
+        elseif (is_array($row) && $row[$this->callback_parameters[0]])//check if array then process
+          $row[$this->callback_parameters[0]] = $this->user_model->order_by('level')->get_many($row[$this->callback_parameters[0]]);
 
         return $row;
     }
diff --git a/core/MY_Model.php b/core/MY_Model.php
index 05add98..6dd8d8c 100644
--- a/core/MY_Model.php
+++ b/core/MY_Model.php
@@ -135,7 +135,7 @@ public function get_by()
 
         if ($this->soft_delete && $this->_temporary_with_deleted !== TRUE)
         {
-            $this->_database->where($this->soft_delete_key, (bool)$this->_temporary_only_deleted);
+            $this->_database->where($this->_table . '.' . $this->soft_delete_key, (bool)$this->_temporary_only_deleted);
         }
 
 		$this->_set_where($where);
@@ -184,7 +184,7 @@ public function get_all()
 
         if ($this->soft_delete && $this->_temporary_with_deleted !== TRUE)
         {
-            $this->_database->where($this->soft_delete_key, (bool)$this->_temporary_only_deleted);
+            $this->_database->where($this->_table . '.' . $this->soft_delete_key, (bool)$this->_temporary_only_deleted);
         }
 
         $result = $this->_database->get($this->_table)
@@ -454,6 +454,8 @@ public function relate($row)
             {
                 $relationship = $key;
                 $options = $value;
+                if (!isset($options['model']))
+                    $options['model'] = $value . '_model';
             }
 
             if (in_array($relationship, $this->_with))
@@ -482,6 +484,8 @@ public function relate($row)
             {
                 $relationship = $key;
                 $options = $value;
+                if (!isset($options['model']))
+                    $options['model'] = $value . '_model';
             }
 
             if (in_array($relationship, $this->_with))
@@ -527,7 +531,7 @@ function dropdown()
 
         if ($this->soft_delete && $this->_temporary_with_deleted !== TRUE)
         {
-            $this->_database->where($this->soft_delete_key, FALSE);
+            $this->_database->where($this->_table . '.' . $this->soft_delete_key, FALSE);
         }
 
         $result = $this->_database->select(array($key, $value))
@@ -553,7 +557,7 @@ public function count_by()
     {
         if ($this->soft_delete && $this->_temporary_with_deleted !== TRUE)
         {
-            $this->_database->where($this->soft_delete_key, (bool)$this->_temporary_only_deleted);
+            $this->_database->where($this->_table . '.' . $this->soft_delete_key, (bool)$this->_temporary_only_deleted);
         }
 
         $where = func_get_args();
@@ -569,7 +573,7 @@ public function count_all()
     {
         if ($this->soft_delete && $this->_temporary_with_deleted !== TRUE)
         {
-            $this->_database->where($this->soft_delete_key, (bool)$this->_temporary_only_deleted);
+            $this->_database->where($this->_table . '.' . $this->soft_delete_key, (bool)$this->_temporary_only_deleted);
         }
 
         return $this->_database->count_all($this->_table);
@@ -702,17 +706,18 @@ public function serialize($row)
 
     public function unserialize($row)
     {
-        foreach ($this->callback_parameters as $column)
-        {
-            if (is_array($row))
-            {
-                $row[$column] = unserialize($row[$column]);
-            }
-            else
+        if ( !empty($row) )
+            foreach ($this->callback_parameters as $column)
             {
-                $row->$column = unserialize($row->$column);
+                if (is_array($row))
+                {
+                    $row[$column] = unserialize($row[$column]);
+                }
+                else
+                {
+                    $row->$column = unserialize($row->$column);
+                }
             }
-        }
 
         return $row;
     }