如何使用 where 子句在 prisma 中包含 model 数据计数？

Question

i need to get user details with post count(Number of posts for today).

const usersWithCount = await prisma.user.findMany({
      select: {
        _count: {
          select: {
            posts: {
             where: {
                       createdAt: moment().format("YYYY-MM-DD"),
                    },
                  },
            recipes: true,
          },
        },
      },
    })

Answer 1

You cannot filter in relations count, this is not currently supported by prisma. Here is the Feature Request for adding filters in relations count. In your use case you can get filtered relations as described below:

  const usersWithCount = await prisma.user.findMany({
    select: {
      posts: {
        where: {
          createdAt: moment().format("YYYY-MM-DD"),
        },
      },
      recipes: true
    },
  });

In the response of the above query you will get posts array with records satisfying your where condition, you can use the array's length as a count.