Django -如何在模板中调用带有参数的函数
Django -如何在模板中调用带有参数的函数
提问于 2022-11-29 12:20:01
我有以下基于功能的观点：
def get_emails(request, HOST, USERNAME, PASSWORD):
context = {
'FU_HOST': settings.FU_HOST,
'FU_USERNAME': settings.FU_USERNAME,
'FU_PASSWORD': settings.FU_PASSWORD,
'FV_HOST': settings.FV_HOST,
'FV_USERNAME': settings.FV_USERNAME,
'FV_PASSWORD': settings.FV_PASSWORD,
'USV_HOST': settings.USV_HOST,
'USV_USERNAME': settings.USV_USERNAME,
'USV_PASSWORD': settings.USV_PASSWORD,
}
m = imaplib.IMAP4_SSL(HOST, 993)
m.login(USERNAME, PASSWORD)
m.select('INBOX')
result, data = m.uid('search', None, "ALL")
if result == 'OK':
for num in data[0].split():
result, data = m.uid('fetch', num, '(RFC822)')
if result == 'OK':
email_message_raw = email.message_from_bytes(data[0][1])
email_from = str(make_header(decode_header(email_message_raw['From'])))
email_addr = email_from.replace('<', '>').split('>')
if len(email_addr) > 1:
new_entry = EmailMarketing(email_address=email_addr[1], mail_server='X')
new_entry.save()
else:
new_entry = EmailMarketing(email_address=email_addr[0], mail_server='X')
new_entry.save()
m.close()
m.logout()
messages.success(request, f'Subscribers list sychronized successfully.')
return redirect('subscribers')我想在前端放置3个按钮，每次调用相同的函数，比如一个按钮get_emails(FU_HOST，FU_USERNAME，FU_PASSWORD)，另一个按钮get_emails(USV_HOST，USV_USERNAME，USV_PASSWORD)。
如何才能在Django实现这一点？我的凭据存储在.env文件中。
回答 3
Stack Overflow用户
发布于 2022-11-29 12:35:41
这样的功能不是通过将函数放在前端模板上实现的，您需要做的是将用户重定向到包含该函数的视图，并从用户请求中提取这些值，因为正如您所看到的，您有一些方法正在访问您的数据库，如果可能的话，这不是您可以从前端实现的，也不是安全的。
Stack Overflow用户
发布于 2022-11-29 12:44:47
从上下文中我可以理解传递给您的函数的参数必须是安全的。
所以，可以用这样的帖子表：
def get_emails(request):
context = {
'FU_HOST': settings.FU_HOST,
'FU_USERNAME': settings.FU_USERNAME,
'FU_PASSWORD': settings.FU_PASSWORD,
'FV_HOST': settings.FV_HOST,
'FV_USERNAME': settings.FV_USERNAME,
'FV_PASSWORD': settings.FV_PASSWORD,
'USV_HOST': settings.USV_HOST,
'USV_USERNAME': settings.USV_USERNAME,
'USV_PASSWORD': settings.USV_PASSWORD,
}
if request.method == "POST":
HOST = request.POST["HOST"]
USERNAME = request.POST["USERNAME"]
PASSWORD = request.POST["PASSWORD"]
m = imaplib.IMAP4_SSL(HOST, 993)
m.login(USERNAME, PASSWORD)
m.select('INBOX')
result, data = m.uid('search', None, "ALL")
if result == 'OK':
for num in data[0].split():
result, data = m.uid('fetch', num, '(RFC822)')
if result == 'OK':
email_message_raw = email.message_from_bytes(data[0][1])
email_from = str(make_header(decode_header(email_message_raw['From'])))
email_addr = email_from.replace('<', '>').split('>')
if len(email_addr) > 1:
new_entry = EmailMarketing(email_address=email_addr[1], mail_server='X')
new_entry.save()
else:
new_entry = EmailMarketing(email_address=email_addr[0], mail_server='X')
new_entry.save()
m.close()
m.logout()
messages.success(request, f'Subscribers list sychronized successfully.')
return redirect('subscribers')在模板中，向主机发出一个post请求，用户名和密码如下所示。
<form action="{% url 'name-of-your-view' %}" method="POST">
<input type="text" name="HOST">
<input type="text" name="USERNAME">
<input type="text" name="PASSWORD">
<input type="submit">
</form>Stack Overflow用户
发布于 2022-11-29 13:18:36
对于此场景，如果表单post方法不适合您，则可以使用javascript和ajax。
将以下代码添加到html代码中，以使用javascript方法。
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.1/jquery.min.js"></script>
<script>
function post(_host,_username,_password){
$.ajax({
url: '{% url "url-name"%}',
type: 'POST',
data: {
csrfmiddlewaretoken: "{{ csrf_token }}",
host: _host,
username = _username,
password = _password
},
success: function (res) {
console.log(res);
}
});
}
</script>按以下方式更新python函数。
def get_emails(request):
HOST = request.POST.get('host')
USERNAME = request.POST.get('username')
PASSWORD = request.POST.get('password')
context = {
'FU_HOST': settings.FU_HOST,
'FU_USERNAME': settings.FU_USERNAME,
'FU_PASSWORD': settings.FU_PASSWORD,
'FV_HOST': settings.FV_HOST,
'FV_USERNAME': settings.FV_USERNAME,
'FV_PASSWORD': settings.FV_PASSWORD,
'USV_HOST': settings.USV_HOST,
'USV_USERNAME': settings.USV_USERNAME,
'USV_PASSWORD': settings.USV_PASSWORD,
}
m = imaplib.IMAP4_SSL(HOST, 993)
m.login(USERNAME, PASSWORD)
m.select('INBOX')
result, data = m.uid('search', None, "ALL")
if result == 'OK':
for num in data[0].split():
result, data = m.uid('fetch', num, '(RFC822)')
if result == 'OK':
email_message_raw = email.message_from_bytes(data[0][1])
email_from = str(make_header(decode_header(email_message_raw['From'])))
email_addr = email_from.replace('<', '>').split('>')
if len(email_addr) > 1:
new_entry = EmailMarketing(email_address=email_addr[1], mail_server='X')
new_entry.save()
else:
new_entry = EmailMarketing(email_address=email_addr[0], mail_server='X')
new_entry.save()
m.close()
m.logout()
messages.success(request, f'Subscribers list sychronized successfully.')
return redirect('subscribers')希望能帮上忙。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/74613987
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