mongodb 使用Prisma在Next.js中未更新视图计数

rryofs0p  于 2023-10-16  发布在  Go
关注(0)|答案(1)|浏览(118)

我正在使用Next.js和Prisma构建博客应用程序。我有一个页面,我显示一个职位的基础上,它的ID,我想增加的意见计数每次获取此页面。但是,视图计数根本不会改变。
下面是相关代码:
page.tsx:

timport BackButton from "@/components/BackButton";
import Badge from "@/components/Badge";
import DeleteButton from "@/components/DeleteButton";
import Like from "@/components/Like";
import Views from "@/components/Views";
import { Tag } from "@prisma/client";
import { Pencil } from "lucide-react";
import Link from "next/link";

interface Props {
  params: {
    id: string;
  };
}

interface Post {
  id: string;
  title: string;
  content: string;
  tag: Tag;
  views: number;
  likes: number;
}

const getPost = async ({ params }: Props): Promise<Post> => {
  const res = await fetch(`http://localhost:3000/api/posts/${params.id}`, {
    cache: "no-store",
  });
  return res.json();
};

const DetailPage = async ({ params }: Props) => {
  const post = await getPost({ params });
  return (
    <div className="flex flex-col gap-4 max-w-lg">
      <BackButton href="/posts" />
      <div className="flex justify-between gap-1 items-baseline max-w-sm">
        <h1 className="text-3xl font-bold">{post.title}</h1>
        {post.tag && <Badge tag={post.tag.name} />}
      </div>
      <div className="flex justify-start gap-4 items-baseline max-w-sm">
        <div className="flex items-center gap-4">
          <Link href={`/posts/edit/${post.id}`} className="btn btn-warning">
            <Pencil /> Edit
          </Link>
          <DeleteButton params={params} />
        </div>
        <Views views={post.views} />
        <Like likes={post.likes} />
      </div>
      <p className="max-w-md">{post.content}</p>
    </div>
  );
};
export default DetailPage;

route.tsx:

import prisma from "@/prisma/client";
import { NextRequest, NextResponse } from "next/server";

interface Props {
  params: {
    id: string;
  };
}

export async function GET(req: NextRequest, { params }: Props) {
  try {
    const post = await prisma.post.update({
      where: {
        id: params.id,
      },
      data: {
        views: {
          increment: 1,
        },
      },
      select: {
        id: true,
        title: true,
        content: true,
        tag: true,
        views: true,
        likes: true,
      },
    });
    return NextResponse.json(post, { status: 200 });
  } catch (error) {
    return NextResponse.json(
      { message: "Could not fecth the post" },
      { status: 500 }
    );
  }
}

views.tsx:

import { Eye } from "lucide-react";

interface Props {
  views: number;
}

const Views = ({ views }: Props) => {
  console.log("****Views****: ", views);
  return (
    <div className="flex gap-1 items-center">
      <Eye size={23} />
      <span className="font-bold text-sm">{views}</span>
    </div>
  );
};
export default Views;

prisma.schema.ts:

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider = "mongodb"
  url      = env("DATABASE_URL")
}

model Tag {
  id   String @id @default(cuid()) @map("_id")
  name String
  post Post[]
}

model Post {
  id        String   @id @default(cuid()) @map("_id")
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  title     String
  content   String
  views     Int      @default(0)
  likes     Int      @default(0)
  tag       Tag?     @relation(fields: [tagId], references: [id])
  tagId     String
}
  • 我试过在增加视图数之前获取帖子,在增加视图数之后获取帖子,甚至在一个查询中使用update方法和select来获取和增加。然而,这些解决方案都没有奏效。
  • 我不会在每个请求上都创建一个新的Prisma客户端示例,我的数据库连接是稳定的。当我尝试更新视图计数时,没有抛出错误。

有谁知道为什么视图计数可能不会更新,我如何解决这个问题?

1yjd4xko

1yjd4xko1#

我用视图功能解决了这个问题。出现这个问题是因为我在prisma.schema.ts文件中定义视图字段之前已经创建了一些帖子。因此,这些员额在数据库中没有视图字段。为了解决这个问题,我使用Prisma Studio手动为每个帖子分配随机浏览次数。在那之后,所有帖子的浏览量都正常工作。

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