#Update data in another component for new entry in the database

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little crowBOT
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Hi @unreal fractal. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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To update the data in another component when a new task is saved in the database, you can use the concept of "Optimistic Updates". This concept is mentioned in the Next.js documentation (https://nextjs.org/docs/app/building-your-application/data-fetching/forms-and-mutations) and it allows you to update the UI before the Server Action finishes, rather than waiting for the response.

Here's an example of how you can use it in your case:

'use client';
 
import { useState } from 'react';
import { experimental_useOptimistic as useOptimistic } from 'react';

const InputField = () => {
  const [fieldInput, setFieldInput] = useState<any>();
  const [todos, addTodo] = useOptimistic([]);

  const handleClick = async () => {
    const newTodo = { title: fieldInput };
    addTodo(newTodo);
    await fetch('<http://localhost:3000/api/todo',> {
      method: 'POST',
      body: JSON.stringify(newTodo),
    }).then(() => {
      console.log('YEAH');
    });
  };

  return (
    <div>
      <input type="text" name="input" id="input" onChange={(e) => setFieldInput(e.target.value)} placeholder="What needs to be done?" />
      <button type="button" onClick={() => handleClick()}>
        Add
      </button>
    </div>
  );
};

export default InputField;

In this code, we're using the useOptimistic hook to create an optimistic version of the todos state. When you click the button to add a new todo, we first update the optimistic state with addTodo(newTodo), then we send the request to the server. This way, the UI updates immediately, and if the server request fails, the optimistic update will be rolled back.

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Please note that useOptimistic is an experimental feature and may not be available in all versions of React. Also, this code assumes that the TodoList component is using the same todos state. If TodoList is a separate component, you might need to lift the state up or use a state management library to share the state between components.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#

@autumn sun kapa.ai is still learning and improving, please let us know how it did by reacting below

unreal fractal
#

@little crow other way?

little crowBOT
#

Let me check the knowledge base for you. One moment! :books:

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Another way to update the data in another component when a new task is saved in the database is by using Server Actions, a feature introduced in Next.js 13.4. Server Actions are designed for deep integration with the rest of the data lifecycle, including the Next.js Cache, Incremental Static Regeneration (ISR), and the client router.

Server Actions allow you to define asynchronous server functions that can be called directly from your components, without needing to manually create an API Route. When a form is submitted, the Server Action can update cached data and revalidate any cache keys that should change. This means that mutating, re-rendering the page, or redirecting can happen in one network roundtrip, ensuring the correct data is displayed on the client, even if the upstream provider is slow.

Here's an example of how you can use Server Actions in your case:

// app/dashboard/posts/page.tsx (Server Component)
import db from './db';
import { revalidateTag } from 'next/cache';
 
async function update(formData: FormData) {
 'use server';
 await db.post.update({
 title: formData.get('title'),
 });
 revalidateTag('posts');
}
 
export default async function Page() {
 const res = await fetch('<https://...',> { next: { tags: ['posts'] } });
 const data = await res.json();
 // ...
}

In this code, we're defining a Server Action update that updates the database and then revalidates the cache for 'posts'. This ensures that the latest data is displayed on the client.

Please note that Server Actions are available today in alpha with Next.js 13.4. By opting into using Server Actions, Next.js will use the experimental release channel of React. You can opt into using Server Actions by adding the following to your next.config.js:

#

@autumn sun kapa.ai is still learning and improving, please let us know how it did by reacting below

unreal fractal
#

@little crow Other way

little crowBOT
#

Let me check the knowledge base for you. One moment! :books:

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The code you provided should work correctly if you're using Prisma. The orderBy option in Prisma's findMany method allows you to sort the returned data based on a specific field. In your case, it's sorting the todos by id in descending order.

If it's not working as expected, it could be due to a few reasons:

  1. There might be an issue with your Prisma setup. Ensure that you have correctly set up Prisma in your project and that the prisma.todo.findMany function is correctly connected to your database.

  2. The id field might not exist in your todo model, or it might be of a type that can't be sorted (like a string with non-numeric characters). Ensure that the id field exists in your todo model and is of a sortable type (like Int or String with numeric characters).

  3. There might be an issue with your database. Ensure that your database is correctly set up and that the todo table contains the id field.

If you're still facing issues, I recommend checking the Prisma documentation (https://www.prisma.io/docs/concepts/components/prisma-client/filtering-and-sorting) or posting your issue on the Prisma GitHub Discussions (https://github.com/prisma/prisma/discussions) for more help.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: