Question

我正在关注待办事项教程。我有TodoItem和TodoList，当我进入url`http://localhost:8000/api/todos/时得到它们。我只想从api返回完成的todoItem。我该怎么办

models.py

class TodoList(models.Model):
    name = models.CharField(max_length=200, default="blank title")
    is_completed = models.BooleanField(default=False)
    completed_at = models.DateTimeField(default=datetime.now(), null=True, blank=True)
    created_at = models.DateTimeField(default=datetime.now(), null=True, blank=True)
    #owner = models.OneToOneField(User, on_delete=models.CASCADE)

    class Meta:
        verbose_name = "Todo List"
        verbose_name_plural = "Todo Lists"
        ordering = ["name","created_at", "is_completed", ]

    def __str__(self):
            return self.name


class TodoItem(models.Model):
    name = models.CharField(max_length=200, default="blank title")
    todo_list = models.ForeignKey(TodoList, on_delete=models.CASCADE, null=True)
    description = models.TextField(max_length=200, default="Blank text")
    is_completed = models.BooleanField(default=False)
    completed_at = models.DateTimeField(default=datetime.now(), null=True, blank=True)
    created_at = models.DateTimeField(default=datetime.now(), null=True, blank=True)
    deadline = models.DateTimeField(default=datetime.now(), null=True, blank=True)


    class Meta:
        verbose_name = "Todo List"
        verbose_name_plural = "Todo Lists"
        ordering = ["created_at", "is_completed","deadline","name" ]

    def __str__(self):
            return self.name

serializers.py

from rest_framework import serializers
from .models import *


class TodoItemSerializer(serializers.ModelSerializer):
    class Meta:
        model = TodoItem
        fields = '__all__'

class TodoListSerializer(serializers.ModelSerializer):
    class Meta:
        model = TodoList
        fields = '__all__'

views.py

from django.shortcuts import render
from rest_framework import viewsets
from .serializers import *
from .models import *

class TodoItemView(viewsets.ModelViewSet):
    serializer_class = TodoItemSerializer
    queryset = TodoItem.objects.all()


class TodoListView(viewsets.ModelViewSet):
    serializer_class = TodoListSerializer
    queryset = TodoList.objects.all()

这是项目级别的 urls.py

from django.contrib import admin
from django.urls import path, include 
from rest_framework import routers
from todo import views

router = routers.DefaultRouter()
router.register(r'todos', views.TodoView, 'todo')
router.register(r'todoitems', views.TodoListView, 'todoitem')
router.register(r'todolists', views.TodoItemView, 'todolist')


urlpatterns = [
        path('admin/', admin.site.urls),
        path('accounts/', include('django.contrib.auth.urls')),         
        path('api/', include(router.urls))
]

另一个问题是我需要一个用户登录/注册机制。我已经将所有者属性添加到TodoList（上面已注释）。但是如何列出诸如“向我显示user1的已完成任务”之类的数据呢？

Answer 1

您的TodoItemView

class TodoItemView(viewsets.ModelViewSet):
    serializer_class = TodoItemSerializer
    queryset = TodoItem.objects.all()
    filter_backends = [DjangoFilterBackend]
    filter_class = TodoItemFilter

您的TodoItemFilter

class TodoItemFilter(django_filters.rest_framework.FilterSet):

    class Meta:
        model = TodoItem
        fields = ('is_completed',)

您还可以添加班级的其他字段在这种情况下，您可以进行http://localhost:8000/api/todos/?is_comploted=true

Django DRF：如何显示过滤的数据

1 个答案: