Only create the fields in db if they arent there

application/migrations/073_add_userid_to_station_profiles.php

@@ -10,7 +10,9 @@ class Migration_add_userid_to_station_profiles extends CI_Migration {
             'user_id BIGINT(20) DEFAULT NULL',
         );
 
-        $this->dbforge->add_column('station_profile', $fields);
+        if (!$this->db->field_exists('user_id', 'station_profile')) {
+            $this->dbforge->add_column('station_profile', $fields);
+        }
     }
 
     public function down()

application/migrations/074_add_active_station_logbook_to_user_table.php

@@ -15,7 +15,9 @@ class Migration_add_active_station_logbook_to_user_table extends CI_Migration {
 			'active_station_logbook int(11)',
 		);
 
-		$this->dbforge->add_column('users', $fields);
+		if (!$this->db->field_exists('active_station_logbook', 'users')) {
+			$this->dbforge->add_column('users', $fields);
+		}
 	}
 
 	public function down()