如何在django中获取错误文本？

Question

我希望在将值保存到数据库时获取异常文本。

view.py：

if request.method == 'POST':
    form = CustomerForm(request.POST)        

    if form.is_valid():
        try:
            customer = form.save(commit=False)           
            customer.save()
        except DatabaseError:
            message = 'Database Error: ' + str(??? text error ???)

Answer 1

您可以在except语句中传递第二个变量。它会保留文本错误。见下文

if request.method == 'POST':
    form = CustomerForm(request.POST)        

    if form.is_valid():
        try:
            customer = form.save(commit=False)           
            customer.save()
        except DatabaseError, text_error:
            message = u'Database Error: {0}'.format(text_error)

Answer 2

您可以按以下方式打印例外。

if request.method == 'POST':
    form = CustomerForm(request.POST)        


if form.is_valid():
    try:
        customer = form.save(commit=False)           
        customer.save()
    except DatabaseError as e:
        message = 'Database Error: ' + str(e.message)