如何在Django中为不同的用户创建不同的模型数据库

Question

我正在尝试创建一个todo网站。因为所有用户都有自己的Todos列表。但是它向所有用户显示相同的列表，并且其他用户可以编辑，删除和添加到所有用户再次可见的待办事项列表。

models.朋友

from django.db import models
from django.contrib.auth import get_user_model
from django.conf import settings


class todo (models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete="models.CASCADE")
    todo_topic = models.CharField (max_length = 50)
    todo_description = models.TextField(max_length=100)
    todo_date = models.DateTimeField(null = True)
    date_added = models.DateTimeField(auto_now = True,)
    completed_or_not = models.CharField(choices=(('Done', 'Done'), ('Not Done', 'Not Done')), default = 'Not Done', max_length=10)

views.朋友

from django.shortcuts import render
from .models import todo
from .forms import addTodo_form, edit_form
from django.contrib.auth.models import User
from django.http import HttpResponseRedirect
from django.urls import reverse
from django.contrib.auth.decorators import login_required

def dashboard(request):
    if request.user.is_authenticated:
        todo_list = todo.objects.order_by('-date_added')
        template = 'customers/dashboard.html'
        return render (request, template, {'todo_list' : todo_list})
    else :
        return render (request, 'customers/home.html')

@login_required
def addTodo(request):
    if request.method == 'POST' :
        form = addTodo_form(request.POST)
        if form.is_valid():
            topic = form.cleaned_data['topic']
            des = form.cleaned_data['description']
            date = form.cleaned_data['todo_date']
            #user = User.objects.get(username=request.user.username)
            user=request.user
            gta = user.todo_set.create(todo_topic = topic, todo_description = des, todo_date = date)
            message = 'Item Added To Your Todo List'
            return render(request, 'customers/add.html', {'form' : form, 'msg' : message})
    else :
        form = addTodo_form()
    return render(request, 'customers/add.html', {'form' : form})

@login_required
def showForm(request, id):
    a = todo.objects.get(pk=id)
    data_dict = {'topic' : a.todo_topic, 'description' : a.todo_description, 'todo_date' : a.todo_date, 'completed_or_not' : a.completed_or_not}
    form = edit_form(initial = data_dict)
    return render(request, 'customers/edit.html', {'form' : form, 'date_added' : a.date_added})

@login_required
def edit(request, date_added):
    if request.method == 'POST':
        form = edit_form(request.POST)
        if form.is_valid():
            topic = form.cleaned_data['topic']
            des = form.cleaned_data['description']
            date = form.cleaned_data['todo_date']
            status = form.cleaned_data['completed_or_not']
            instance = todo.objects.get(date_added = date_added)
            instance.todo_topic = topic
            instance.todo_description = des
            instance.todo_date = date
            instance.completed_or_not = status
            instance.save(update_fields=['todo_topic', 'todo_description', 'todo_date', 'completed_or_not'])
            message = 'Updated'
            return HttpResponseRedirect(reverse ('dashboard'))

@login_required
def delete(request, id):
    todo.objects.get(pk=id).delete()
    return HttpResponseRedirect(reverse('dashboard'))

forms.朋友

from django import forms

class SignUpForm(forms.Form):
    first_name = forms.CharField(max_length = 20, label = 'First Name', required = True)
    last_name = forms.CharField(max_length = 20, label = 'Last Name', required = True)

    def signup(self, request, user):
        user.first_name : self.cleaned_data['first_name']
        user.last_name : self.cleaned_data['last_name']
        user.save()

class addTodo_form(forms.Form):
    topic = forms.CharField(label = 'Topic', max_length=50, required = True)
    description = forms.CharField(widget=forms.Textarea, label = 'Description', max_length=100)
    todo_date = forms.DateField (label = 'Date', widget=forms.SelectDateWidget)


class edit_form(forms.Form):
    topic = forms.CharField(label = 'Topic', max_length=50, required = True)
    description = forms.CharField(widget=forms.Textarea, label = 'Description', max_length=100)
    todo_date = forms.DateField (label = 'Date', widget=forms.SelectDateWidget)
    completed_or_not = forms.ChoiceField(choices = (
                                            ('Done', 'Done'),
                                            ('Not Done', 'Not Done'),
                                            ))

Project_Directory

project_directory
├───static
│   ├───media
│   ├───static
│   │   ├───css
│   │   └───js
│   └───static-only
│       ├───admin
│       │   ├───css
│       │   │   └───vendor
│       │   │       └───select2
│       │   ├───fonts
│       │   ├───img

│       │   │   └───gis
│       │   └───js
│       │       ├───admin
│       │       └───vendor
│       │           ├───jquery
│       │           ├───select2
│       │           │   └───i18n
│       │           └───xregexp
│       ├───css
│       └───js
└───todo_website
    ├───customers
    │   ├───migrations
    │   │   └───__pycache__
    │   ├───templates
    │   │   ├───account
    │   │   └───customers
    │   └───__pycache__
    └───todo_website
        └───__pycache__

问题是，我使用user1登录并创建了一个待办事项列表然后我退出了。我再次使用user2登录，在那里我看到user1创建的列表已经存在即使我创建了一个新帐户并登录，user1创建的列表也会出现在那里。

Answer 1

您正在检索所有对象。按用户过滤待办事项并仅显示该用户创建的待办事项。

todo_list = todo.objects.filter(user=request.user).order_by('-date_added')