addons/report_purchase/ir.model.access.csv

   1 id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink\r
   2 access_report_purchase_order_product,report.purchase.order.product,model_report_purchase_order_product,base.group_user,1,0,0,0\r
   3 access_report_purchase_order_category,report.purchase.order.category,model_report_purchase_order_category,base.group_user,1,0,0,0\r