无法访问第二个用户

Question

我正在使用图表 js 学习 Django 2.2，我试图在更改 URL 中的 id 时显示我的用户技能。我有 2 个用户，它适用于第一个但不适用于第二个。

这是错误：

Profile matching query does not exist.
Request Method: GET
Request URL:    http://127.0.0.1:8080/skills/2/
Django Version: 2.2
Exception Type: DoesNotExist
Exception Value:    
Profile matching query does not exist.

这是我的个人资料模型，Profile => models.py：

from django.db import models
from django.contrib.auth.models import User
from django.core.validators import FileExtensionValidator

# Create your models here.

class Profile(models.Model):
    name = models.ForeignKey(User, on_delete=models.CASCADE)
    website = models.URLField(blank=True)
    avatar = models.ImageField(upload_to='uploads/img', validators=[FileExtensionValidator(allowed_extensions=['png'])], blank=True)
    updated = models.DateTimeField(auto_now=True)
    created = models.DateTimeField(auto_now_add=True)

    @property
    def get_created(self):
        return self.created.strftime("%m/%d/%Y, %H:%M:%S")

    def __str__(self):
        return "{}-{}".format(self.name, self.get_created)

这是我的技能模型，技能 => models.py

from django.db import models
from profiles.models import Profile
from django.core.validators import MaxValueValidator, MinValueValidator
# Create your models here.


class Skill(models.Model):
    user = models.ForeignKey(Profile, on_delete=models.CASCADE)
    name = models.CharField(max_length=220)
    score = models.PositiveIntegerField(
        validators=[MinValueValidator(1), MaxValueValidator(5)])

    def __str__(self):
        return "{}-{}-{}".format(self.user, self.name, self.score)

这是我的技能网址，技能 => urls.py：

from django.urls import path
from .views import skill_view, UserChartView

app_name = 'skills'

urlpatterns = [
    path('', skill_view, name='my-skills'),
    path('<profile_id>/', UserChartView.as_view(), name='user-skills'),
    ]

这是我的用户视图，Skills => views.py：

from django.shortcuts import render, redirect
from django.forms import inlineformset_factory
from .models import Skill
from profiles.models import Profile
from django.views.generic import TemplateView


# Create your views here.


class UserChartView(TemplateView):
    template_name = 'skills/user_skills.html'

    def get_object(self):
        pk = self.kwargs.get('profile_id')
        return pk

    def get_context_data(self, **kwargs):
        context = super(UserChartView, self).get_context_data(**kwargs)
        profile = Profile.objects.get(name__id=self.get_object())
        qs = profile.skill_set.all()
        context["qs"] = qs
        return context

Answer 1

query: name__id=self.get_object() to id=self.get_object()

Answer 2

您在这里的目标是访问User 对象具有id=2 的配置文件，但由于用户模型的名称是profile_id，这可能是Profile 的主键。

我建议使用DetailView，因为这已经可以完成大部分样板逻辑。您可以在这里简单地确定pk_url_kwarg 是'profile_id'：

from app.models import Profile
from django.views.generic import DetailView

class UserChartView(DetailView):
    model = Profile
    pk_url_kwarg = 'profile_id'
    template_name = 'skills/user_skills.html'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['qs'] = self.object.skill_set.all()
        return context