运行突变以存储新用户的帖子返回错误：变量“$data”类型的预期值

Question

我使用 graphql-yoga 和 prisma 创建了用户和发布数据模型。一个用户可以有很多帖子 我确实喜欢下面。现在根据addPost 突变，我想添加与当前用户相关的新帖子。但是graphql服务器返回以下错误

但是当我运行突变时：

mutation {
  addPost(title:"aa", body: "bb"){
    id
    title
    author {
      id
      email
    }
  }
}

给我这个错误：为什么会这样？我该如何解决这个问题？

  "errors": [
    {
      "message": "Error: Variable '$data' expected value of type 'PostCreateInput!' but got: {\"title\":\"aa\",\"body\":\"bb\",\"author\":{\"id\":\"5f036dc924aa9a00070c4771\",\"email\":\"bb@bb.com\"}}. Reason: 'author.id' Field 'id' is not defined in the input type 'UserCreateOneInput'. (line 1, column 11):\nmutation ($data: PostCreateInput!)

数据模型.prisma

type User {
  id: ID! @id
  email: String! @unique
  password: String!

}

type Post {
  id: ID! @id
  title: String!
  body: String!
  author_id: Int
  author:     User!   @relation(link: INLINE,fields: [authorId], references: [id])
  createdAt: DateTime @createdAt
  updatedAt: DateTime @updatedAt
}

架构：

type User {
    id: ID!
    email: String!
}

type Post {
    id: ID!
    title: String!
    body: String!
    author: User!
}

input UserInput {
    id: ID!
    email: String!
}

type Mutation {
    addPost(title: String!, body: String!) : Post!
}

解析器。

   addPost: async (parent, { title, body }, { prisma, me }) => {
      console.log(me);
      try {
        const post = await prisma.createPost({
          title,
          body,
          author: {id: me.user.id, email: me.user.email}
        });
        return post;

      } catch (error) {
        throw new Error(error);

      }
    }

Answer 1

应该是：

const post = await prisma.createPost({
  title,
  body,
  author: {
    connect: { id: me.user.id, email: me.user.email }
  }
});

这会将帖子添加到现有用户。

另外，如果您开始使用 Prisma，我会推荐 Prisma 2