Python 如何使用表单更新django中的行？_Python_Django_Django Models_Django Rest Framework_Django Forms

Python 如何使用表单更新django中的行？

python django django-models django-rest-framework

Python 如何使用表单更新django中的行？,python,django,django-models,django-rest-framework,django-forms,Python,Django,Django Models,Django Rest Framework,Django Forms,我正在尝试使用django创建一个网站来跟踪我的志愿者的出勤情况，会有一个签入和签出按钮，因此当点击签入按钮时，数据会进入数据库，没有问题，问题出在签出按钮上，单击“签出”按钮时，应更新行并添加签出的日期/时间 models.py： from django.db import models from django.forms import ModelForm # Create your models here. class Volunteer(models.Model): full_

我正在尝试使用django创建一个网站来跟踪我的志愿者的出勤情况，会有一个签入和签出按钮，因此当点击签入按钮时，数据会进入数据库，没有问题，问题出在签出按钮上，单击“签出”按钮时，应更新行并添加签出的日期/时间

models.py：

from django.db import models
from django.forms import ModelForm

# Create your models here.

class Volunteer(models.Model):
    full_name = models.CharField(max_length=200)
    phone_number = models.CharField(max_length=30)
    email = models.CharField(max_length=255)
    national_id = models.CharField(max_length=255)

    def __str__(self):
        return self.full_name

class Login(models.Model):
    full_name = models.CharField(max_length=200,default="", null=True,)
    national_id = models.CharField(max_length=200,default="", null=True,)
    check_in = models.DateTimeField(auto_now_add=True)
    check_out = models.DateTimeField(auto_now=True)
    check_in.editable=True
    check_out.editable=True

    def __str__(self):
        return self.full_name

views.py：

from django.shortcuts import render
from django.http import HttpResponse, HttpResponseRedirect
from .models import Volunteer, Login
from django import forms
# Create your views here. 


def volunteerView(request):
    if request.method=='POST':
        print ("Recieved a POST request")
        form=LoginForm(request.POST)
        if form.is_valid():
            print ("FORM is valid")
        else:
            print ("FORM is unvalid")
    all_volunteers = Volunteer.objects.all()
    return render(request, 'volunteer.html',
        {'all_volunteers': all_volunteers, 'form':LoginForm()})

def loginView(request):
    login_view = Login.objects.all()
    return render(request, 'login.html',
    {'login_view': login_view})



def addVolunteer(request):
    new_volunteer = Volunteer(full_name = request.POST['full_name'],
    phone_number = request.POST['phone_number'],
    email = request.POST['email'],
    national_id = request.POST['national_id'],
    )
    new_volunteer.save()
    return HttpResponseRedirect('/')

def addChekIn(request):
    new_checkin = Login(
        national_id = request.POST['national_id'],
        full_name = request.POST['full_name'],
    )
    new_checkin.save()
    return HttpResponseRedirect('/login/')

模板/login.html：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Ertiqa | Login</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>  
</head>

<style>

h1{
    color: white;
}


</style>

<body>

    <form action="/addCheckIN/" method="POST" class="container">
        {{ form.as_p }}
        {% csrf_token %}
        <h1>Check IN</h1>
        <h3>Full Name</h3>
        <input type="text" name="full_name"><br>
        <h3>National ID</h3>
        <input type="text" name="national_id"><br>
        <input type="submit" value="Check IN" class="btn btn-primary">
    </form>


</body>

</html>


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h1{
颜色：白色；
}
{{form.as_p}}
{%csrf_令牌%}
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国民身份证

我知道你的问题。首先，你的小说有点不对劲。您可以像这样使用模型类：

from django.db import models
from django.forms import ModelForm

# Create your models here.

class Volunteer(models.Model):
    full_name = models.CharField(max_length=200)
    phone_number = models.CharField(max_length=30)
    email = models.CharField(max_length=255)
    national_id = models.CharField(max_length=255)

    def __str__(self):
        return self.full_name

class Login(models.Model):
    full_name = models.CharField(max_length=200,default="", null=True)
    national_id = models.CharField(max_length=200,default="", null=True)
    check_in = models.DateTimeField(auto_now_add=True, editable=True) # <--- You can use editable arg inline.
    check_out = models.DateTimeField(auto_now=True, editable=True) # <--- You can use editable arg inline.

    def __str__(self):
        return self.full_name

最后一个，当您给函数命名时，应该使用下划线而不是大小写。（如def add_check_in（））。这只是pep8 Python的拼写规则。

我希望这对你有帮助。

嗨！您需要添加您为我们所做的尝试，以帮助您非常感谢！！我是刚到django的，所以我不是很好，谢谢你的帮助。不客气。不要忘记，如果没有人互相帮助，我们就无法生活在这个世界上；）

class Volunteer(models.Model):
    full_name = models.CharField(max_length=200, unique=True)
    phone_number = models.CharField(max_length=30)
    email = models.CharField(max_length=255)
    national_id = models.CharField(max_length=255, unique=True)
    check_in = models.DateTimeField(auto_now_add=True, editable=True) #<-- auto_now_add=True args mean: when you call .save() method first time, this field is filled in with the current date and time.
    check_out = models.DateTimeField(auto_now=True, editable=True) #<-- auto_now=True args mean: when you call .save() method second and next times (every updating), this field is filled in with the current date and time.


    def __str__(self):
        return self.full_name

def checkout(request):
    national_id = request.POST['national_id'], # If national_id is unique, It's enough.
    try: #Check this national id is exist in your db.
        person = Login.objects.get(national_id=national_id)
        person.save()
        messages.success(request, "Thank you for checkout blabla")
        return HttpResponseRedirect('/login/')  # Maybe you can create a success page.
    except LoginDoesNotExist: # If doesn't you can show error message.
        messages.error(request, "No such registry was found in the system.")
        return redirect("/login/")