Django模板中访问父模型属性：优化项目详情页显示

<h1 class="mb-3">Posts for {{ post.project.title }}</h1> {# 此处可能无法正确显示 #}
{% for post in posts %}
    <article class="media content-section">
        <img class="rounded-circle article-img" src="{{ post.author.profile.image.url }}">
        <div class="media-body">
            <div class="article-metadata">
                <a class="mr-2">{{ post.author }}</a>
                <small class="text-muted">{{ post.date_posted|date:"F d, Y" }}</small>
            </div>
            <h2><a class="article-title">{{ post.title }}</a></h2>
            <p class="article-content">{{ post.description }}</p>
        </div>
    </article>
{% endfor %}

from django.views.generic import ListView
from django.shortcuts import get_object_or_404
from .models import Project, Post

class ProjectPostListView(ListView):
    model = Post
    template_name = 'blog/project_posts.html'
    context_object_name = 'posts'
    paginate_by = 10

    def get_queryset(self):
        project = get_object_or_404(Project, title=self.kwargs.get('title'))
        return Post.objects.filter(project=project).order_by('-date_posted')

from django.views.generic import DetailView
from django.shortcuts import get_object_or_404
from .models import Project, Post # 确保导入了Project和Post模型

class ProjectDetailView(DetailView):
    model = Project
    template_name = 'blog/project_posts.html' # 沿用相同的模板文件
    context_object_name = 'project' # 将主上下文对象命名为 'project'

    def get_object(self, queryset=None):
        # DetailView 默认根据 pk 或 slug 获取对象。
        # 由于 URL 使用 'title'，我们需要重写 get_object 方法来通过 title 获取 Project。
        return get_object_or_404(Project, title=self.kwargs.get('title'))

    def get_context_data(self, **kwargs):
        # 调用父类的 get_context_data 获取默认上下文，其中包含了 'project' 对象
        context = super().get_context_data(**kwargs)
        # 通过 Project 模型的 related_name (在 Post 模型中定义为 'posts')
        # 获取与当前 project 关联的所有 Post 对象
        # 注意：如果 Post 模型中 related_name 未指定，默认为 'post_set'
        context['posts'] = self.object.posts.all().order_by('-date_posted')
        return context

class Project(models.Model):
    title = models.CharField(max_length=100)
    # ... 其他字段

    def __str__(self):
        return self.title

class Post(models.Model):
    # ... 其他字段
    project = models.ForeignKey(Project, on_delete=models.CASCADE, related_name='posts')
    # ... 其他字段

<h1 class="mb-3">Posts for {{ project.title }}</h1> {# 直接访问 project 对象的 title 属性 #}
{% for post in posts %} {# 迭代从 context['posts'] 获取的帖子列表 #}
    <article class="media content-section">
        <img class="rounded-circle article-img" src="{{ post.author.profile.image.url }}">
        <div class="media-body">
            <div class="article-metadata">
                <a class="mr-2">{{ post.author }}</a>
                <small class="text-muted">{{ post.date_posted|date:"F d, Y" }}</small>
            </div>
            <h2><a class="article-title">{{ post.title }}</a></h2>
            <p class="article-content">{{ post.description }}</p>
        </div>
    </article>
{% endfor %}

from django.urls import path
from . import views # 假设 ProjectDetailView 位于 views.py

urlpatterns = [
    # ... 其他路径
    path('project/<str:title>', views.ProjectDetailView.as_view(), name='project-posts'), # 更新为新的视图
    # ... 其他路径
]