歡迎回到我使用 Django 而不使用 ChatGPT 建立部落格應用程式的旅程。本週，我專注於實現關鍵功能來增強我的部落格應用程式。我添加了一項功能，允許用戶建立貼文、評論貼文以及按讚其他用戶的貼文。
python manage.py startapp posts
我從設計 Post 模型開始。此模型將儲存使用者建立的部落格文章：
from django.db import models from django.contrib.auth.models import User from django.utils import timezone class Post(models.Model): title = models.CharField(max_length=100) description = models.CharField(max_length=200, help_text="Excerpt of the post...") content = models.TextField() author = models.ForeignKey(User, on_delete=models.CASCADE) publication_date = models.DateTimeField(default=timezone.now) def __str__(self): return self.title
接下來，我還創建了評論和點讚模型，以允許用戶在帖子上發表評論和點讚：
class Comment(models.Model):
post = models.ForeignKey(Post, related_name="comments", on_delete=models.CASCADE)
author = models.ForeignKey(User, on_delete=models.CASCADE)
content = models.TextField()
created_at = models.DateTimeField(default=timezone.now)
def __str__(self):
return f"Comment by {self.author} on {self.post}"
class Like(models.Model):
post = models.ForeignKey(Post, related_name="likes", on_delete=models.CASCADE)
user = models.ForeignKey(User, on_delete=models.CASCADE)
created_at = models.DateTimeField(default=timezone.now)
def __str__(self):
return f"Like by {self.user} on {self.post}"
我也不會包含模板。我創建了用於創建、列出所有帖子和顯示單個帖子的視圖：
from django.shortcuts import render, redirect, get_object_or_404
from rest_framework import generics
from django.contrib.auth.decorators import login_required
from .serializer import PostSerializer
from .forms import *
from .models import *
def create_post(request):
if request.method == "POST":
form = PostForm(request.POST)
if form.is_valid():
newPost = form.save(commit=False)
newPost.author = request.user
newPost.save()
return redirect("posts:my-posts")
else:
form = PostForm()
return render(request, "create_post.html", {"form": form, "show_header": True})
@login_required
def myPosts(request):
'''
List the user created posts
'''
posts = Post.objects.filter(author=request.user)
return render(request, "posts_list.html", {"posts": posts, "show_header": True})
def postDetails(request, pk):
'''
List all posts in the dashboard and display the comments and likes
'''
post = get_object_or_404(Post, pk=pk)
comment = post.comments.all()
likes = post.likes.count()
user_has_liked = post.likes.filter(user=request.user).exists()
if request.method == "POST":
comment_form = CommentForm(request.POST)
if comment_form.is_valid():
comment = comment_form.save(commit=False)
comment.post = post
comment.author = request.user
comment.save()
return redirect("posts:post-detail", pk=post.pk)
else:
comment_form = CommentForm()
return render(
request,
"main_post.html",
{
"post": post,
"comments": comment,
"comment_form": comment_form,
"likes": likes,
"user_has_liked": user_has_liked,
},
)
@login_required
def like_post(request, pk):
'''
Handle liking posts
'''
post = get_object_or_404(Post, pk=pk)
like, created = Like.objects.get_or_create(post=post, user=request.user)
if not created:
like.delete()
return redirect("posts:post-detail", pk=post.pk)
from django.urls import path
from .views import *
app_name = "posts"
urlpatterns = [
path("createpost/", create_post, name="create-post"),
path("post/<int:pk>/", postDetails, name="post-detail"),
path("post/<int:pk>/like/", like_post, name="like-post"),
path("myposts/", myPosts, name="my-posts"),
]
本週，我遇到了以下挑戰：
儘管面臨這些挑戰，我還是學到了很多關於處理使用者互動以及使用 Django 的 ORM 來管理模型之間的關係的知識。
這是我的簡單部落格應用程式。檢查我的 Github 以了解更多詳細資訊和應用程式的現場演示。
我計劃創建另一個 Django 專案來提高我的技能和知識。
如果您對 Django 專案的好專案或合作有任何想法，請隨時發表評論。
請繼續關注我的旅程的更多更新！
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