Add community module

Community/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

Community/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class CommunityConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "Community"

Community/migrations/0001_initial.py

@@ -0,0 +1,86 @@
+# Generated by Django 5.2 on 2025-05-30 01:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = []
+
+    operations = [
+        migrations.CreateModel(
+            name="Comment",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("content", models.TextField()),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name="Favorite",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name="Like",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name="Post",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("content", models.TextField(verbose_name="内容")),
+                (
+                    "image",
+                    models.ImageField(blank=True, null=True, upload_to="post_images/"),
+                ),
+                (
+                    "video",
+                    models.FileField(blank=True, null=True, upload_to="post_videos/"),
+                ),
+                ("like_count", models.PositiveIntegerField(default=0)),
+                ("comment_count", models.PositiveIntegerField(default=0)),
+                ("favorite_count", models.PositiveIntegerField(default=0)),
+                ("created_at", models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+    ]

Community/migrations/0002_initial.py

@@ -0,0 +1,67 @@
+# Generated by Django 5.2 on 2025-05-30 01:17
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ("Community", "0001_initial"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="comment",
+            name="user",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL
+            ),
+        ),
+        migrations.AddField(
+            model_name="favorite",
+            name="user",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL
+            ),
+        ),
+        migrations.AddField(
+            model_name="like",
+            name="user",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL
+            ),
+        ),
+        migrations.AddField(
+            model_name="post",
+            name="user",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL
+            ),
+        ),
+        migrations.AddField(
+            model_name="like",
+            name="post",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to="Community.post"
+            ),
+        ),
+        migrations.AddField(
+            model_name="favorite",
+            name="post",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to="Community.post"
+            ),
+        ),
+        migrations.AddField(
+            model_name="comment",
+            name="post",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to="Community.post"
+            ),
+        ),
+    ]

Community/models.py

@@ -0,0 +1,36 @@
+from django.db import models
+from django.contrib.auth.models import User
+from django.conf import settings  # 使用 Django 的配置抽象层
+
+# 帖子模型
+class Post(models.Model):
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    content = models.TextField(verbose_name="内容")
+    image = models.ImageField(upload_to='post_images/', blank=True, null=True)
+    video = models.FileField(upload_to='post_videos/', blank=True, null=True)
+    like_count = models.PositiveIntegerField(default=0)  # 👍 新增点赞字段
+    comment_count = models.PositiveIntegerField(default=0)  # 👍 新增评论字段
+    favorite_count = models.PositiveIntegerField(default=0)  # 👍 新增点赞字段
+    created_at = models.DateTimeField(auto_now_add=True)
+
+    def __str__(self):
+        return f"{self.user.username} 的帖子"
+
+
+
+# 互动模型（点赞、评论、收藏）
+class Like(models.Model):
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    post = models.ForeignKey(Post, on_delete=models.CASCADE)
+    created_at = models.DateTimeField(auto_now_add=True)
+
+class Comment(models.Model):
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    post = models.ForeignKey(Post, on_delete=models.CASCADE)
+    content = models.TextField()
+    created_at = models.DateTimeField(auto_now_add=True)
+
+class Favorite(models.Model):
+    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    post = models.ForeignKey(Post, on_delete=models.CASCADE)
+    created_at = models.DateTimeField(auto_now_add=True)

Community/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

Community/urls.py

@@ -0,0 +1,15 @@
+from django.urls import re_path as url
+from . import views
+from django.urls import path
+from django.conf.urls.static import static
+from django.conf import settings
+
+urlpatterns = [
+    path ('', views.post_list, name='community'),  # 首页就是帖子列表
+    path('create_post/', views.create_post, name='create_post'),  # 专用于发布逻辑
+    path ('post_list/', views.post_list, name='post_list'),  # 浏览已发布帖子
+    path('like_post/<int:post_id>/', views.like_post, name='like_post'),  # 点赞帖子
+    path('comment_post/<int:post_id>/', views.comment_post, name='comment_post'),  # 评论帖子
+    path('favorite_post/<int:post_id>/', views.favorite_post, name='favorite_post'),  # 收藏帖子
+    path('toggle_follow/<int:user_id>/', views.toggle_follow, name='toggle_follow'),  # 关注
+]

Community/views.py

@@ -0,0 +1,134 @@
+from django.shortcuts import render, redirect
+from .models import Post, Like, Comment, Favorite
+from MyPage.models import Follow
+from users.models import CustomUser
+from django.http import JsonResponse
+from django.contrib.auth.decorators import login_required
+from django.views.decorators.csrf import csrf_exempt
+
+def index(request):
+    posts = Post.objects.all().order_by('-created_at')
+    return render(request, 'Community.html', {'posts': posts})
+
+@login_required(login_url='login')
+@csrf_exempt
+def create_post(request):
+    if request.method == 'POST':
+        content = request.POST.get('content', '').strip()
+        image = request.FILES.get('image')
+        video = request.FILES.get('video')
+
+        if content or image or video:
+            try:
+                post = Post.objects.create(
+                    user=request.user,
+                    content=content,
+                    image=image,
+                    video=video
+                )
+                print("✅ 帖子成功写入数据库！ID:", post.id)
+            except Exception as e:
+                print("❌ 帖子写入失败：", e)
+        else:
+            print("⚠️ 无内容、图片或视频，跳过写入。")
+
+        return redirect('community')
+
+    # GET 请求展示帖子列表
+    posts = Post.objects.all().order_by('-created_at')
+    return render(request, 'Community.html', {'posts': posts})
+
+
+
+# 浏览已发布帖子
+def post_list(request):
+    posts = Post.objects.all().order_by('-created_at')
+    return render(request, 'Community.html', {'posts': posts})
+
+
+@login_required(login_url='login')
+@csrf_exempt
+def like_post(request, post_id):
+    user = request.user
+    try:
+        post = Post.objects.get(id=post_id)
+        # 检查是否已点赞
+        if Like.objects.filter(user=user, post=post).exists():
+            return JsonResponse({'success': False, 'message': '已点赞'})
+        # 没有则创建记录
+        Like.objects.create(user=user, post=post)
+        post.like_count += 1
+        post.save()
+        return JsonResponse({'success': True, 'likes': post.like_count})
+    except Post.DoesNotExist:
+        return JsonResponse({'success': False, 'error': '帖子不存在'}, status=404)
+
+
+@login_required(login_url='login')
+@csrf_exempt
+def comment_post(request, post_id):
+    if request.method == 'POST':
+        content = request.POST.get('content', '').strip()
+        if not content:
+            return JsonResponse({'success': False, 'message': '评论不能为空'})
+        
+        try:
+            post = Post.objects.get(id=post_id)
+            comment = Comment.objects.create(user=request.user, post=post, content=content)
+            post.comment_count += 1
+            post.save()
+            return JsonResponse({
+                'success': True,
+                'username': comment.user.username,
+                'content': comment.content,
+                'created_at': comment.created_at.strftime('%Y-%m-%d %H:%M:%S'),
+                'comment_count': post.comment_count
+            })
+        except Post.DoesNotExist:
+            return JsonResponse({'success': False, 'error': '帖子不存在'}, status=404)
+        
+@login_required(login_url='login')
+@csrf_exempt
+def favorite_post(request, post_id):
+    user = request.user
+    try:
+        post = Post.objects.get(id=post_id)
+        # 检查是否已收藏
+        if Favorite.objects.filter(user=user, post=post).exists():
+            return JsonResponse({'success': False, 'message': '已收藏'})
+        # 没有则创建记录
+        Favorite.objects.create(user=user, post=post)
+        post.favorite_count += 1
+        post.save()
+        return JsonResponse({'success': True, 'favorites': post.favorite_count})
+    except Post.DoesNotExist:
+        return JsonResponse({'success': False, 'error': '帖子不存在'}, status=404)
+    
+@login_required(login_url='login')
+@csrf_exempt
+def toggle_follow(request, user_id):
+    follower = request.user
+    try:
+        followed = CustomUser.objects.get(id=user_id)
+        if follower == followed:
+            return JsonResponse({'success': False, 'message': '不能关注自己'})
+
+        existing = Follow.objects.filter(follower=follower, followed=followed)
+        if existing.exists():
+            existing.delete()
+            return JsonResponse({'success': True, 'following': False, 'message': '已取消关注'})
+        else:
+            Follow.objects.create(follower=follower, followed=followed)
+            return JsonResponse({'success': True, 'following': True, 'message': '关注成功'})
+    except CustomUser.DoesNotExist:
+        return JsonResponse({'success': False, 'message': '用户不存在'})
+    
+
+def post_list(request):
+    posts = Post.objects.all().order_by('-created_at')
+    user = request.user
+    for post in posts:
+        post.is_followed = False
+        if user.is_authenticated and post.user != user:
+            post.is_followed = Follow.objects.filter(follower=user, followed=post.user).exists()
+    return render(request, 'Community.html', {'posts': posts})