when(isset($params['id']) && $params['id'] !== '',function($query) use ($params){ $query->where('id', (int)$params['id']); }) ->when(isset($params['batch_title']) && $params['batch_title'] !== '',function($query) use ($params){ $query->where('batch_title', $params['batch_title']); }) ->when(isset($params['batch_unique']) && $params['batch_unique'] !== '',function($query) use ($params){ $query->where('batch_unique', $params['batch_unique']); }) ->when(isset($params['exchange_code']) && $params['exchange_code'] !== '',function($query) use ($params){ $query->where('exchange_code', $params['exchange_code']); }) ->when(isset($params['status']) && $params['status'] !== '',function($query) use ($params){ $query->where('status', (int)$params['status']); }) ->when(isset($params['mer_id']) && $params['mer_id'] !== '',function($query) use ($params){ $query->where('mer_id', (int)$params['mer_id']); }) ->when(isset($params['group_data_id']) && $params['group_data_id'] !== '',function($query) use ($params){ $query->where('group_data_id', (int)$params['group_data_id']); }) // ->with() ->order('create_time DESC,id DESC'); } }