自己顶一下:
第三种方法: 在addons/warning/warning.py onchange_invoice_number():
result={}
.........
if invoice number existe:
warning = {
'title': 'Duplicate of Supplier invoice number' ,
'message': 'There is already supplier invoice number with ****!'
}
return result
运行后输入重复发票号码,会弹出带信息的对话框